54 lines
1.2 KiB
JavaScript
54 lines
1.2 KiB
JavaScript
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'use strict';
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/**
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* Migration helper methods
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* @type {Object}
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*/
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module.exports = {
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get_db_type(knex) {
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switch(knex.client.config.client) {
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case 'postgresql':
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case 'postgres':
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case 'pg':
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return 'pg';
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default:
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return knex.client.config.client;
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}
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},
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pg_timestamp_update_function () {
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return `CREATE OR REPLACE FUNCTION progblog_update_modified_column()
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RETURNS TRIGGER AS $$
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BEGIN
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NEW.updated_at = now();
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RETURN NEW;
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END;
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$$ language 'plpgsql';`;
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},
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pg_create_timestamp_update_trigger(table) {
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return `CREATE TRIGGER update_${table}_modtime
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BEFORE UPDATE ON "${table}"
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FOR EACH ROW
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EXECUTE PROCEDURE progblog_update_modified_column();`;
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},
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pg_delete_timestamp_update_trigger(table) {
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return `DROP TRIGGER IF EXISTS update_${table}_modtime ON "${table}";`;
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},
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sqlite3_create_timestamp_update_trigger(table) {
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return `CREATE TRIGGER IF NOT EXISTS [UpdateModified]
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BEFORE UPDATE ON "${table}"
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FOR EACH ROW
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BEGIN
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UPDATE "${table}" SET updated_at = CURRENT_TIMESTAMP WHERE id = old.id;
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END`;
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},
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sqlite3_delete_timestamp_update_trigger() {
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return `DROP TRIGGER IF EXISTS [UpdateModified]`;
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}
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};
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