1056 lines
29 KiB
Rust
1056 lines
29 KiB
Rust
//! Query Builder
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//!
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//! The QueryBuilder creates sql queries from chained methods
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use std::any::Any;
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use std::collections::HashMap;
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use crate::drivers::{DatabaseDriver, DefaultDriver};
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use crate::fns::split_map_join;
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use regex::Regex;
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/// The position of the wildcard(s)
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/// for a `like` clause
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#[derive(Debug)]
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pub enum LikeWildcard {
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/// Wildcard before search term
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/// eg. `%foo`
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Before,
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/// Wildcard after the search term
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/// eg. `foo%`
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After,
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/// Wildcards surrounding the search term
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/// eg. `%foo%`
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Both,
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}
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/// The type of SQL join
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#[derive(Debug)]
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pub enum JoinType {
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/// A `CROSS` join
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Cross,
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/// An `INNER` join
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Inner,
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/// An `OUTER` join
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Outer,
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/// A `LEFT (OUTER)` join
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Left,
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/// A `RIGHT (OUTER)` join
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Right,
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}
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/// The sort direction
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#[derive(Debug, PartialEq)]
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pub enum OrderDirection {
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/// Sort Ascending
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Asc,
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/// Sort Descending
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Desc,
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/// Random Sort (Not yet implemented!)
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Rand,
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}
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/// The type of Query Clause
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#[derive(Debug, PartialEq)]
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enum QueryClauseType {
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/// Ending a parenthetical grouping
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GroupEnd,
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/// Starting a parenthetical grouping
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GroupStart,
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/// A having clause
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Having,
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/// A join clause
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Join,
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/// A like clause
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Like,
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/// A where clause
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Where,
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/// A where in clause
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WhereIn,
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}
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#[derive(Debug)]
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enum QueryType {
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Select,
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Insert,
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Update,
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Delete,
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}
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/// The struct representing a query builder
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pub struct QueryBuilder {
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/// The struct to store the query builder info
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state: QueryState,
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driver: Box<dyn DatabaseDriver>,
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}
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impl Default for QueryBuilder {
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/// Creates a new QueryBuilder instance with default driver
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///
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/// This is **not** useful for a real database.
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fn default() -> Self {
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QueryBuilder {
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state: QueryState::new(),
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driver: Box::new(DefaultDriver::new()),
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}
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}
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}
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impl QueryBuilder {
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/// Create a new QueryBuilder instance with a driver
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///
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/// ```no_run
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/// use stringqb::prelude::*;
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///
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/// // You probably do not want to use the default driver, as it
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/// // is basically a mock for testing
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/// use stringqb::drivers::DefaultDriver;
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///
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/// // The query builder must be mutable to be useful
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/// let mut qb = QueryBuilder::new(DefaultDriver::new());
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///
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/// // Each builder method returns a mutable reference to itself so
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/// // the methods are chainable
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/// qb.select("field f").from("table");
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///
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/// // Since they are references, you do not have to chain.
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/// let sql = qb.get_compiled_select();
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/// ```
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pub fn new(driver: impl DatabaseDriver + 'static) -> Self {
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QueryBuilder {
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state: QueryState::new(),
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driver: Box::new(driver),
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}
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}
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// --------------------------------------------------------------------------
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// ! Select Queries
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// --------------------------------------------------------------------------
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/// Set the fields to select from the database as a string
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///
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/// ```no_run
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/// # let mut qb = stringqb::query_builder::QueryBuilder::default();
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/// // You can also alias field names
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/// qb.select("foo as bar");
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/// ```
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pub fn select(&mut self, fields: &str) -> &mut Self {
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lazy_static! {
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static ref RE: Regex = Regex::new(r"(?i) as ").unwrap();
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};
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let fields = split_map_join(fields, ",", |s| {
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if !RE.is_match(s) {
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return self.driver.quote_identifier(s.trim());
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}
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// Do a operation similar to split_map_join for the
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// regex matches, quoting each identifier
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RE.split(s)
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.into_iter()
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.map(|p| self.driver.quote_identifier(p))
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.collect::<Vec<String>>()
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.join(" as ")
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});
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self.state.append_select_string(&fields);
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self
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}
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/// Set the fields to select from the database as a Vector
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///
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/// ```no_run
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/// # let mut qb = stringqb::query_builder::QueryBuilder::default();
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/// // You can also alias via a vector of fields
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/// qb.select_vec(vec!["foo as bar", "baz"]);
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/// ```
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pub fn select_vec(&mut self, fields: Vec<&str>) -> &mut Self {
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let fields = fields.join(",");
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self.select(&fields)
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}
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/// Adds the `distinct` keyword to a query
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pub fn distinct(&mut self) -> &mut Self {
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self.state.prepend_select_string(" DISTINCT");
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self
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}
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/// Tell the database to give you query plain info, rather
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/// than a result set
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pub fn explain(&mut self) -> &mut Self {
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self.state.explain = true;
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self
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}
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/// Specify the database table to select from
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///
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/// ```no_run
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/// # let mut qb = stringqb::query_builder::QueryBuilder::default();
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/// // You can specifiy an alias for the table
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/// qb.from("products p");
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/// ```
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pub fn from(&mut self, table_name: &str) -> &mut Self {
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let from_str = split_map_join(table_name, " ", |s| self.driver.quote_identifier(s));
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self.state.set_from_string(&from_str);
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self
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}
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// --------------------------------------------------------------------------
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// ! 'Like' methods
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// --------------------------------------------------------------------------
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/// Creates a `like` clause in the sql
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///
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/// ```no_run
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/// # use stringqb::prelude::*;
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/// # let mut qb = stringqb::query_builder::QueryBuilder::default();
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/// // Search for a value that ends with "foo"
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/// qb.like("field", String::from("foo"), LikeWildcard::Before);
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///
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/// // Search for a value that starts with "foo"
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/// qb.like("field", String::from("foo"), LikeWildcard::After);
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///
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/// // Search for a value that has "foo" in it
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/// qb.like("field", String::from("foo"), LikeWildcard::Both);
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/// ```
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pub fn like(&mut self, field: &str, value: impl Any, position: LikeWildcard) -> &mut Self {
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self._like(field, value, position, "LIKE", "AND")
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}
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/// Generates an `or like` clause
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pub fn or_like(&mut self, field: &str, value: impl Any, position: LikeWildcard) -> &mut Self {
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self._like(field, value, position, "LIKE", "OR")
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}
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/// Generates a `not like` clause
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pub fn not_like(&mut self, field: &str, value: impl Any, position: LikeWildcard) -> &mut Self {
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self._like(field, value, position, "NOT LIKE", "AND")
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}
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/// Generates an OR NOT Like clause
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pub fn or_not_like(
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&mut self,
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field: &str,
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value: impl Any,
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position: LikeWildcard,
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) -> &mut Self {
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self._like(field, value, position, "NOT LIKE", "OR")
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}
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// --------------------------------------------------------------------------
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// ! Having methods
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// --------------------------------------------------------------------------
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/// Add a `having` clause to the query
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///
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/// ```no_run
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/// # use stringqb::prelude::*;
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/// # let mut qb = QueryBuilder::default();
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/// // By default, key = value
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/// qb.having("key", vec!["value"]);
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///
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/// // Other operators can be used with a separating space
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/// qb.having("clues >=", vec![4]);
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/// ```
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pub fn having(&mut self, key: &str, value: Vec<impl Any>) -> &mut Self {
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self._having(key, value, "AND")
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}
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/// Add a `having` clause to the query, prefixed with an `or`
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pub fn or_having(&mut self, key: &str, value: Vec<impl Any>) -> &mut Self {
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self._having(key, value, "OR")
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}
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// --------------------------------------------------------------------------
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// ! 'Where' methods
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// --------------------------------------------------------------------------
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/// Specify a condition for the `where` clause of the query. Can be called
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/// multiple times, which will then add additional where conditions, prefixed
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/// with 'AND'.
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///
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/// ```no_run
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/// # use stringqb::prelude::*;
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/// # let mut qb = QueryBuilder::default();
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/// // By default, key = value
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/// qb.r#where("key", "value");
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///
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/// // Other operators can be used with a separating space
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/// qb.r#where("key >", 4);
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///
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/// // If you don't like the r#where syntax, you can use the wher method instead
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/// qb.wher("key >", 4);
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/// ```
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pub fn r#where(&mut self, key: &str, value: impl Any) -> &mut Self {
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self._where_string(key, value, "AND")
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}
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/// Alias method for `where`, as using the `where` method requires
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/// using the raw identifier `r#where`.
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pub fn wher(&mut self, key: &str, value: impl Any) -> &mut Self {
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self.r#where(key, value)
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}
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/// Specify a condition for the `where` clause of the query, prefixed with `or`
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pub fn or_where(&mut self, key: &str, value: impl Any) -> &mut Self {
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self._where_string(key, value, "OR")
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}
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/// Specify a `where in` clause for the query
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pub fn where_in(&mut self, key: &str, values: Vec<impl Any>) -> &mut Self {
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self._where_in(key, values, "IN", "AND")
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}
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/// Specify a `where in` clause for the query, prefixed with `or`
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pub fn or_where_in(&mut self, key: &str, values: Vec<impl Any>) -> &mut Self {
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self._where_in(key, values, "IN", "OR")
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}
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/// Specify a `where not in` clause for the query
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pub fn where_not_in(&mut self, key: &str, values: Vec<impl Any>) -> &mut Self {
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self._where_in(key, values, "NOT IN", "AND")
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}
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/// Specify a `where not in` clause for the query, prefixed with `or`
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pub fn or_where_not_in(&mut self, key: &str, values: Vec<impl Any>) -> &mut Self {
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self._where_in(key, values, "NOT IN", "OR")
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}
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// --------------------------------------------------------------------------
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// ! Other Query Modifier methods
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// --------------------------------------------------------------------------
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/// Set a key and value for an insert or update query
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pub fn set(&mut self, key: &str, value: impl Any) -> &mut Self {
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let key = self.driver.quote_identifier(key);
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self.state
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.append_set_array_keys(&key)
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.append_values(Box::new(value));
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self
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}
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/// Set a map of data for an insert or update query
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pub fn set_map(&mut self, data: HashMap<String, impl Any>) -> &mut Self {
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for (key, value) in data {
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self.set(&key, value);
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}
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self
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}
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/// Convenience method for a `left` join
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pub fn left_join(&mut self, table: &str, col: &str, op: &str, value: &str) -> &mut Self {
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self.join(table, col, op, value, JoinType::Left)
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}
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/// Convenience method for an `inner` join
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pub fn inner_join(&mut self, table: &str, col: &str, op: &str, value: &str) -> &mut Self {
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self.join(table, col, op, value, JoinType::Inner)
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}
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/// Add a table join to the query
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///
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/// ```no_run
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/// # use stringqb::prelude::*;
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/// # let mut qb = QueryBuilder::default();
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/// // Note that the value is not escaped, due to it often being a column
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/// qb.join("table1", "column1", "<>", "foo", JoinType::Inner);
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/// ```
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pub fn join(
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&mut self,
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table: &str,
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col: &str,
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op: &str,
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value: &str,
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join_type: JoinType,
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) -> &mut Self {
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let table = self.driver.quote_identifier(table);
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let col = self.driver.quote_identifier(col);
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let condition = table + " ON " + &col + op + value;
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let join_type = match join_type {
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JoinType::Cross => "CROSS ",
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JoinType::Left => "LEFT ",
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JoinType::Inner => "INNER ",
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JoinType::Outer => "OUTER ",
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JoinType::Right => "RIGHT ",
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};
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let conjunction = "\n".to_string() + join_type + "JOIN ";
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self.state
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.append_query_map(QueryClauseType::Join, &conjunction, &condition);
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self
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}
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/// Add a group by clause to the query
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pub fn group_by(&mut self, field: &str) -> &mut Self {
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self.state.append_group_array(field);
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let group_string = String::from(" GROUP BY ") + &self.state.get_group_array().join(",");
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self.state.set_group_string(&group_string);
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self
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}
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/// Add an order by clause to the query
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pub fn order_by(&mut self, field: &str, direction: OrderDirection) -> &mut Self {
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let field = self.driver.quote_identifier(field);
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let dir = match direction {
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OrderDirection::Asc => String::from("ASC"),
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OrderDirection::Desc => String::from("DESC"),
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OrderDirection::Rand => self.driver.random(),
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};
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self.state.append_order_map(&field, &dir);
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let mut order_clauses: Vec<String> = vec![];
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for (f, dir) in self.state.get_order_map() {
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let clause = String::clone(f) + " " + &dir;
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&order_clauses.push(clause);
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}
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let order_str = "\nORDER BY ".to_string() + &order_clauses.join(", ");
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self.state.set_order_string(&order_str);
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self
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}
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/// Add a limit to the query
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pub fn limit(&mut self, limit: usize) -> &mut Self {
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self.state.limit = Some(limit);
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self
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}
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/// Add an offset to the query
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pub fn offset(&mut self, offset: usize) -> &mut Self {
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self.state.offset = Some(offset);
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self
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}
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// --------------------------------------------------------------------------
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// ! Query Grouping Methods
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// --------------------------------------------------------------------------
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/// Start a logical grouping in the current query
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pub fn group_start(&mut self) -> &mut Self {
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self.state
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.append_query_map(QueryClauseType::GroupStart, " ", "(");
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self
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}
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/// Start a logical grouping, prefixed with `not`
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pub fn not_group_start(&mut self) -> &mut Self {
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self.state
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.append_query_map(QueryClauseType::GroupStart, " AND ", "NOT (");
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self
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}
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/// Start a logical grouping, prefixed with `or`
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pub fn or_group_start(&mut self) -> &mut Self {
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self.state
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.append_query_map(QueryClauseType::GroupStart, "", " OR (");
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self
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}
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/// Start a logical grouping, prefixed with `or not`
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pub fn or_not_group_start(&mut self) -> &mut Self {
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self.state
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.append_query_map(QueryClauseType::GroupStart, "", " OR NOT (");
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self
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}
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/// End the current logical grouping
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pub fn group_end(&mut self) -> &mut Self {
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self.state
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.append_query_map(QueryClauseType::GroupEnd, "", ")");
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self
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}
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// --------------------------------------------------------------------------
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// ! Query execution methods
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// --------------------------------------------------------------------------
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/// Execute the built query
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pub fn get(&mut self) {
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let sql = self.get_compiled_select();
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self.run(&sql)
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}
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/// Count all the rows in the specified database table
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pub fn count_all(self, table: &str) -> usize {
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unimplemented!();
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}
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/// Execute the generated insert query
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pub fn insert(&mut self, table: &str) {
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let sql = self.get_compiled_insert(table);
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self.run(&sql)
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}
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/// Execute the generated update query
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pub fn update(&mut self, table: &str) {
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let sql = self.get_compiled_update(table);
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self.run(&sql)
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}
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/// Execute the generated delete query
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pub fn delete(&mut self, table: &str) {
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let sql = self.get_compiled_delete(table);
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self.run(&sql)
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}
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// --------------------------------------------------------------------------
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// ! SQL Returning Methods
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// --------------------------------------------------------------------------
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|
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/// Get the generated SQL for a select query
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pub fn get_compiled_select(&self) -> String {
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// The table name should already be set from the `from` method
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assert!(
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self.state.get_from_string().len() > 0,
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"You must use the `from` method to set the table name for a select query"
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);
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self.compile(QueryType::Select, "")
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}
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|
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/// Get the generated SQL for an insert query
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pub fn get_compiled_insert(&self, table: &str) -> String {
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self.compile(QueryType::Insert, table)
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}
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/// Get the generated SQL for an update query
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pub fn get_compiled_update(&self, table: &str) -> String {
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self.compile(QueryType::Update, table)
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}
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/// Get the generated SQL for a delete query
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pub fn get_compiled_delete(&self, table: &str) -> String {
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self.compile(QueryType::Delete, table)
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}
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// --------------------------------------------------------------------------
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// ! Miscellaneous Methods
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// --------------------------------------------------------------------------
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/// Get a new instance of the query builder
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pub fn reset(&mut self) -> &Self {
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self.state = QueryState::new();
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self
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}
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/// Execute an SQL query
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pub fn query(&mut self, sql: &str) {
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unimplemented!();
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}
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// --------------------------------------------------------------------------
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// ! Implementation Details
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// --------------------------------------------------------------------------
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fn _like(
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&mut self,
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field: &str,
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value: impl Any,
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position: LikeWildcard,
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like: &str,
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conj: &str,
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) -> &mut Self {
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let field = self.driver.quote_identifier(field);
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let like = format!("{} {} ?", field, like);
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let value: Box<dyn Any + 'static> = Box::new(value);
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let string_val = value.downcast_ref::<String>().unwrap();
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let value = match position {
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LikeWildcard::Before => format!("%{}", string_val),
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LikeWildcard::After => format!("{}%s", string_val),
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LikeWildcard::Both => format!("%{}%", string_val),
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};
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self.state
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.append_query_map(QueryClauseType::Like, conj, &like);
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self.state.append_where_values(Box::new(value));
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self
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}
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fn _having(&mut self, key: &str, values: Vec<impl Any>, conj: &str) -> &mut Self {
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let keys = self._where(key, values);
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for k in keys {
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self._having_key(&k, conj);
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}
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self
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}
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fn _having_key(&mut self, key: &str, conj: &str) -> &mut Self {
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let field = key.trim().split(" ").collect::<Vec<&str>>();
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let mut item = self.driver.quote_identifier(field[0]);;
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let item2 = if field.len() == 1 {
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String::from("=?")
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} else {
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format!(" {} ?", &field[1])
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};
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item += &item2;
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self.state.append_having_map(conj, &item);
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self
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}
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fn _where(&mut self, key: &str, values: Vec<impl Any>) -> Vec<String> {
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for x in values {
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self.state.append_where_values(Box::new(x));
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}
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vec![String::from(key)]
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}
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fn _where_in(
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&mut self,
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key: &str,
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values: Vec<impl Any>,
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in_str: &str,
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conj: &str,
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) -> &mut Self {
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let key = self.driver.quote_identifier(key);
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let placeholders = vec!["?"; values.len()];
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for value in values {
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self.state.append_where_values(Box::new(value));
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}
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let str = format!("{} {} ({}) ", key, in_str, placeholders.join(","));
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self.state
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.append_query_map(QueryClauseType::WhereIn, conj, &str);
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self
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}
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fn _where_string(&mut self, key: &str, value: impl Any, conj: &str) -> &mut Self {
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let keys = self._where(key, vec![value]);
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for k in keys {
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self._where_string_key(&k, conj);
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}
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self
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}
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fn _where_string_key(&mut self, key: &str, conj: &str) {
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let field = key.trim().split(" ").collect::<Vec<&str>>();
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let last_item = self.state.get_query_map_last();
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let mut item = self.driver.quote_identifier(field[0]);
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let item2 = if field.len() == 1 {
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String::from("=?")
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} else {
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format!(" {} ?", &field[1])
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};
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item += &item2;
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let conj = if last_item.is_some() {
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let last_item = last_item.unwrap();
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match last_item.clause_type {
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QueryClauseType::GroupStart => String::from(""),
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_ => format!(" {} ", conj),
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}
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} else {
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format!(" {} ", conj)
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};
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self.state
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.append_query_map(QueryClauseType::Where, &conj, &item);
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}
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fn compile(&self, query_type: QueryType, table: &str) -> String {
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// Get the base clause for the query
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let base_sql = self.compile_type(query_type, &self.driver.quote_identifier(table));
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let mut parts = vec![base_sql];
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for clause in self.state.get_query_map() {
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&parts.push(clause.to_string());
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}
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&parts.push(self.state.get_group_string().to_string());
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&parts.push(self.state.get_order_string().to_string());
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for clause in self.state.get_having_map() {
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&parts.push(clause.to_string());
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}
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let mut sql = parts.join("");
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// Add limit/ offset
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sql = self.driver.limit(&sql, self.state.limit, self.state.offset);
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// Handle explain
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if self.state.explain == true {
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self.driver.explain(&sql)
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} else {
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sql
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}
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}
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fn compile_type(&self, query_type: QueryType, table: &str) -> String {
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match query_type {
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QueryType::Select => {
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let from = self.state.get_from_string();
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let select = self.state.get_select_string();
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let sql = format!("SELECT *\nFROM {}", from);
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if select.len() > 0 {
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sql.replace("*", select)
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} else {
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sql
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}
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}
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QueryType::Insert => {
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let set_array_keys = self.state.get_set_array_keys();
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let param_count = set_array_keys.len();
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let params = vec!["?"; param_count];
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format!(
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"INSERT INTO {} ({})\nVALUES({})",
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table,
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set_array_keys.join(","),
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params.join(",")
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)
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}
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QueryType::Update => {
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let set_string = self.state.get_set_string();
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format!("UPDATE {}\nSET {}", table, set_string)
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}
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QueryType::Delete => format!("DELETE FROM {}", table),
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}
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}
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fn run(&mut self, _sql: &str) {
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let mut values: Vec<Box<Any>> = vec![];
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values.append(self.state.get_values());
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values.append(self.state.get_where_values());
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// @TODO determine query result type
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// @TODO prepare/execute query, and return result
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unimplemented!();
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}
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}
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#[derive(Debug)]
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struct QueryClause {
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clause_type: QueryClauseType,
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conjunction: String,
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string: String,
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}
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impl QueryClause {
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fn new(clause_type: QueryClauseType, conjunction: &str, string: &str) -> Self {
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QueryClause {
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clause_type,
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conjunction: conjunction.to_string(),
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string: string.to_string(),
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}
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}
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fn to_string(&self) -> String {
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format!("{}{}", self.conjunction, self.string)
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}
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}
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#[derive(Debug)]
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struct QueryState {
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pub explain: bool,
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select_string: String,
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from_string: String,
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set_string: String,
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order_string: String,
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group_string: String,
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// Keys for insert/update statement
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set_array_keys: Vec<String>,
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// Order by clause
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order_map: HashMap<String, String>,
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// Group by clause
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group_array: Vec<String>,
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// Values to apply to prepared statements
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values: Vec<Box<Any>>,
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// Values to apply to where clauses in prepared statements
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where_values: Vec<Box<Any>>,
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pub limit: Option<usize>,
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pub offset: Option<usize>,
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// Query components for complex selects
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query_map: Vec<QueryClause>,
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// Query components for having clauses
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having_map: Vec<QueryClause>,
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}
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impl Default for QueryState {
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fn default() -> Self {
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QueryState {
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explain: false,
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select_string: String::from(""),
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from_string: String::from(""),
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set_string: String::from(""),
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order_string: String::from(""),
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group_string: String::from(""),
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set_array_keys: vec![],
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order_map: HashMap::new(),
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group_array: vec![],
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values: vec![],
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where_values: vec![],
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limit: None,
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offset: None,
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query_map: vec![],
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having_map: vec![],
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}
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}
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}
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impl QueryState {
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fn new() -> Self {
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QueryState::default()
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}
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fn append_select_string(&mut self, s: &str) -> &mut Self {
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self.select_string += s;
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self
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}
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fn prepend_select_string(&mut self, s: &str) -> &mut Self {
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self.select_string = String::from(s) + &self.select_string;
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self
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}
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fn append_group_array(&mut self, field: &str) -> &mut Self {
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self.group_array.push(String::from(field));
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self
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}
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fn append_having_map(&mut self, conj: &str, s: &str) -> &mut Self {
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let conj = if self.having_map.len() == 0 {
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String::from(" HAVING ")
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} else {
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format!(" {} ", conj)
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};
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self.having_map
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.push(QueryClause::new(QueryClauseType::Having, &conj, s));
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self
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}
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fn append_order_map(&mut self, key: &str, dir: &str) -> &mut Self {
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self.order_map.insert(String::from(key), String::from(dir));
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self
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}
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fn append_set_array_keys(&mut self, key: &str) -> &mut Self {
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self.set_array_keys.push(key.to_string());
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self
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}
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fn append_values(&mut self, val: Box<Any>) -> &mut Self {
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self.values.push(val);
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self
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}
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fn append_where_values(&mut self, val: Box<Any>) -> &mut Self {
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self.where_values.push(val);
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self
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}
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fn append_query_map(&mut self, clause_type: QueryClauseType, conj: &str, s: &str) -> &mut Self {
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let conj = if self.query_map.len() == 0 {
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" WHERE "
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} else {
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conj
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};
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|
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self.query_map.push(QueryClause::new(clause_type, conj, s));
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self
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}
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fn get_from_string(&self) -> &str {
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&self.from_string
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}
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fn get_group_array(&self) -> &Vec<String> {
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&self.group_array
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}
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fn get_group_string(&self) -> &str {
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&self.group_string
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}
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fn get_having_map(&self) -> &Vec<QueryClause> {
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&self.having_map
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}
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fn get_query_map(&self) -> &Vec<QueryClause> {
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&self.query_map
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}
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fn get_query_map_last(&self) -> Option<&QueryClause> {
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if self.query_map.len() == 0 {
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return None;
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}
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let index = self.query_map.len() - 1;
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Some(&self.query_map[index])
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}
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fn get_select_string(&self) -> &str {
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&self.select_string
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}
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fn get_set_array_keys(&self) -> &Vec<String> {
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&self.set_array_keys
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}
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fn get_set_string(&self) -> &str {
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&self.set_string
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}
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fn get_order_map(&self) -> &HashMap<String, String> {
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&self.order_map
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}
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fn get_order_string(&self) -> &str {
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&self.order_string
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}
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fn get_values(&mut self) -> &mut Vec<Box<Any>> {
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&mut self.values
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}
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fn get_where_values(&mut self) -> &mut Vec<Box<Any>> {
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&mut self.where_values
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}
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fn set_from_string(&mut self, s: &str) -> &mut Self {
|
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self.from_string = String::from(s);
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|
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self
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}
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fn set_group_string(&mut self, s: &str) -> &mut Self {
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self.group_string = String::from(s);
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self
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}
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fn set_order_string(&mut self, order_string: &str) -> &mut Self {
|
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self.order_string = String::from(order_string);
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self
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}
|
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}
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|
|
#[cfg(test)]
|
|
mod tests {
|
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use super::*;
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|
|
#[test]
|
|
fn set_key_value() {
|
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let mut qb = QueryBuilder::default();
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|
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qb.set("foo", "bar");
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|
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assert_eq!(qb.state.get_set_array_keys()[0], "\"foo\"");
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assert!(qb.state.get_values()[0].is::<&str>());
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|
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// @TODO find a way to make this kind of operation much more ergonomic
|
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assert_eq!(
|
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*qb.state.get_values()[0].downcast_ref::<&str>().unwrap(),
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"bar"
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);
|
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}
|
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|
|
#[test]
|
|
fn set_hashmap() {
|
|
let mut qb = QueryBuilder::default();
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|
|
let mut authors = HashMap::new();
|
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authors.insert(String::from("Chinua Achebe"), String::from("Nigeria"));
|
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authors.insert(String::from("Rabindranath Tagore"), String::from("India"));
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authors.insert(String::from("Anita Nair"), String::from("India"));
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|
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qb.set_map(authors);
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|
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// assert_eq!(qb.state.set_array_keys[0], "Chinua Achebe");
|
|
assert_eq!(qb.state.get_set_array_keys().len(), 3);
|
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assert_eq!(qb.state.get_values().len(), 3);
|
|
}
|
|
|
|
#[test]
|
|
fn set_where_in() {
|
|
let mut qb = QueryBuilder::default();
|
|
|
|
qb.from("test").where_in("foo", vec![0, 1, 2, 3, 4, 5]);
|
|
|
|
let sql = qb.get_compiled_select();
|
|
let expected = "SELECT *\nFROM \"test\" WHERE \"foo\" IN (?,?,?,?,?,?) ";
|
|
|
|
assert_eq!(sql, expected);
|
|
}
|
|
}
|