334 lines
6.8 KiB
PHP
334 lines
6.8 KiB
PHP
<?php
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/**
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* OpenSQLManager
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*
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* Free Database manager for Open Source Databases
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*
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* @author Timothy J. Warren
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* @copyright Copyright (c) 2012
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* @link https://github.com/aviat4ion/OpenSQLManager
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* @license http://philsturgeon.co.uk/code/dbad-license
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*/
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// --------------------------------------------------------------------------
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/**
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* Firebird Specific SQL
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*/
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class Firebird_SQL extends DB_SQL {
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/**
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* Convienience public function to generate sql for creating a db table
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*
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* @param string $name
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* @param array $fields
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* @param array $constraints=array()
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* @param array $indexes=array()
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*
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* @return string
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*/
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public function create_table($name, $fields, array $constraints=array(), array $indexes=array())
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{
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$column_array = array();
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// Reorganize into an array indexed with column information
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// Eg $column_array[$colname] = array(
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// 'type' => ...,
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// 'constraint' => ...,
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// 'index' => ...,
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// )
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foreach($fields as $colname => $type)
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{
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if(is_numeric($colname))
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{
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$colname = $type;
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}
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$column_array[$colname] = array();
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$column_array[$colname]['type'] = ($type !== $colname) ? $type : '';
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}
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if( ! empty($constraints))
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{
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foreach($constraints as $col => $const)
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{
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$column_array[$col]['constraint'] = $const;
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}
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}
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// Join column definitons together
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$columns = array();
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foreach($column_array as $n => $props)
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{
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$str = '"'.$n.'" ';
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$str .= (isset($props['type'])) ? "{$props['type']} " : "";
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$str .= (isset($props['constraint'])) ? "{$props['constraint']} " : "";
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$columns[] = $str;
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}
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// Generate the sql for the creation of the table
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$sql = 'CREATE TABLE "'.$name.'" (';
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$sql .= implode(',', $columns);
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$sql .= ')';
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return $sql;
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}
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// --------------------------------------------------------------------------
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/**
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* Drop the selected table
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*
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* @param string $name
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* @return string
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*/
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public function delete_table($name)
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{
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return 'DROP TABLE "'.$name.'"';
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}
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// --------------------------------------------------------------------------
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/**
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* Limit clause
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*
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* @param string $sql
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* @param int $limit
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* @param int $offset
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* @return string
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*/
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public function limit($sql, $limit, $offset=FALSE)
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{
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// Keep the current sql string safe for a moment
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$orig_sql = $sql;
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$sql = 'FIRST '. (int) $limit;
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if ($offset > 0)
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{
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$sql .= ' SKIP '. (int) $offset;
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}
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$sql = preg_replace("`SELECT`i", "SELECT {$sql}", $orig_sql);
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return $sql;
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}
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// --------------------------------------------------------------------------
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/**
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* Random ordering keyword
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*
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* @return string
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*/
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public function random()
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{
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return FALSE;
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}
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// --------------------------------------------------------------------------
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/**
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* Create an SQL backup file for the current database's structure
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*
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* @return string
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*/
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public function backup_structure()
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{
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// @todo Implement Backup function
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return '';
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}
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// --------------------------------------------------------------------------
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/**
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* Create an SQL backup file for the current database's data
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*
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* @param array $exclude
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* @param bool $system_tables
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* @return string
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*/
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public function backup_data($exclude=array(), $system_tables=FALSE)
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{
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// Determine which tables to use
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if($system_tables == TRUE)
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{
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$tables = array_merge($this->get_system_tables(), $this->get_tables());
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}
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else
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{
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$tables = $this->get_tables();
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}
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// Filter out the tables you don't want
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if( ! empty($exclude))
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{
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$tables = array_diff($tables, $exclude);
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}
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$output_sql = '';
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// Get the data for each object
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foreach($tables as $t)
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{
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$sql = 'SELECT * FROM "'.trim($t).'"';
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$res = $this->query($sql);
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$obj_res = $this->fetchAll(PDO::FETCH_ASSOC);
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unset($res);
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// Nab the column names by getting the keys of the first row
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$columns = @array_keys($obj_res[0]);
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$insert_rows = array();
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// Create the insert statements
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foreach($obj_res as $row)
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{
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$row = array_values($row);
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// Quote values as needed by type
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if(stripos($t, 'RDB$') === FALSE)
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{
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$row = array_map(array(&$this, 'quote'), $row);
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$row = array_map('trim', $row);
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}
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$row_string = 'INSERT INTO "'.trim($t).'" ("'.implode('","', $columns).'") VALUES ('.implode(',', $row).');';
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unset($row);
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$insert_rows[] = $row_string;
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}
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unset($obj_res);
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$output_sql .= "\n\nSET TRANSACTION;\n".implode("\n", $insert_rows)."\nCOMMIT;";
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}
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return $output_sql;
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}
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// --------------------------------------------------------------------------
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/**
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* Returns sql to list other databases
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*
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* @return FALSE
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*/
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public function db_list()
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{
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return FALSE;
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}
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// --------------------------------------------------------------------------
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/**
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* Returns sql to list tables
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*
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* @return string
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*/
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public function table_list()
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{
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return <<<SQL
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SELECT "RDB\$RELATION_NAME" FROM "RDB\$RELATIONS"
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WHERE "RDB\$RELATION_NAME" NOT LIKE 'RDB$%'
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AND "RDB\$RELATION_NAME" NOT LIKE 'MON$%'
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AND "RDB\$VIEW_BLR" IS NOT NULL
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ORDER BY "RDB\$RELATION_NAME" ASC
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SQL;
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}
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// --------------------------------------------------------------------------
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/**
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* Returns sql to list system tables
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*
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* @return string
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*/
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public function system_table_list()
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{
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return <<<SQL
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SELECT "RDB\$RELATION_NAME" FROM "RDB\$RELATIONS"
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WHERE "RDB\$RELATION_NAME" LIKE 'RDB$%'
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OR "RDB\$RELATION_NAME" LIKE 'MON$%';
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SQL;
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}
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// --------------------------------------------------------------------------
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/**
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* Returns sql to list views
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*
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* @return string
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*/
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public function view_list()
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{
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return <<<SQL
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SELECT "RDB\$RELATION_NAME"
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FROM "RDB\$RELATIONS"
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WHERE "RDB\$VIEW_BLR" IS NOT NULL
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AND ("RDB\$SYSTEM_FLAG" IS NULL OR "RDB\$SYSTEM_FLAG" = 0)
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SQL;
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}
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// --------------------------------------------------------------------------
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/**
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* Returns sql to list triggers
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*
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* @return string
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*/
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public function trigger_list()
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{
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return <<<SQL
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SELECT * FROM "RDB\$FUNCTIONS"
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WHERE "RDB\$SYSTEM_FLAG" = 0
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SQL;
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}
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// --------------------------------------------------------------------------
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/**
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* Return sql to list functions
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*
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* @return string
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*/
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public function function_list()
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{
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return <<<SQL
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SELECT * FROM "RDB\$FUNCTIONS"
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WHERE "RDB\$SYSTEM_FLAG" = 0
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SQL;
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}
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// --------------------------------------------------------------------------
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/**
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* Return sql to list stored procedures
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*
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* @return string
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*/
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public function procedure_list()
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{
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return 'SELECT * FROM "RDB$PROCEDURES"';
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}
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// --------------------------------------------------------------------------
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/**
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* Return sql to list sequences
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*
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* @return string
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*/
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public function sequence_list()
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{
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return <<<SQL
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SELECT "RDB\$GENERATOR_NAME"
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FROM "RDB\$GENERATORS"
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WHERE "RDB\$SYSTEM_FLAG" = 0
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SQL;
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}
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}
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//End of firebird_sql.php
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