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80 lines
3.0 KiB
80 lines
3.0 KiB
<?php |
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/** |
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* @link http://www.yiiframework.com/ |
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* @copyright Copyright (c) 2008 Yii Software LLC |
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* @license http://www.yiiframework.com/license/ |
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*/ |
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namespace yii\db\pgsql; |
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/** |
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* QueryBuilder is the query builder for PostgreSQL databases. |
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* |
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* @author Gevik Babakhani <gevikb@gmail.com> |
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* @since 2.0 |
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*/ |
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class QueryBuilder extends \yii\db\QueryBuilder |
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{ |
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/** |
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* @var array mapping from abstract column types (keys) to physical column types (values). |
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*/ |
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public $typeMap = [ |
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Schema::TYPE_PK => 'serial NOT NULL PRIMARY KEY', |
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Schema::TYPE_BIGPK => 'bigserial NOT NULL PRIMARY KEY', |
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Schema::TYPE_STRING => 'varchar(255)', |
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Schema::TYPE_TEXT => 'text', |
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Schema::TYPE_SMALLINT => 'smallint', |
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Schema::TYPE_INTEGER => 'integer', |
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Schema::TYPE_BIGINT => 'bigint', |
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Schema::TYPE_FLOAT => 'double precision', |
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Schema::TYPE_DECIMAL => 'numeric(10,0)', |
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Schema::TYPE_DATETIME => 'timestamp', |
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Schema::TYPE_TIMESTAMP => 'timestamp', |
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Schema::TYPE_TIME => 'time', |
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Schema::TYPE_DATE => 'date', |
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Schema::TYPE_BINARY => 'bytea', |
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Schema::TYPE_BOOLEAN => 'boolean', |
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Schema::TYPE_MONEY => 'numeric(19,4)', |
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]; |
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/** |
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* Builds a SQL statement for dropping an index. |
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* @param string $name the name of the index to be dropped. The name will be properly quoted by the method. |
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* @param string $table the table whose index is to be dropped. The name will be properly quoted by the method. |
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* @return string the SQL statement for dropping an index. |
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*/ |
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public function dropIndex($name, $table) |
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{ |
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return 'DROP INDEX ' . $this->db->quoteTableName($name); |
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} |
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/** |
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* Builds a SQL statement for renaming a DB table. |
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* @param string $oldName the table to be renamed. The name will be properly quoted by the method. |
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* @param string $newName the new table name. The name will be properly quoted by the method. |
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* @return string the SQL statement for renaming a DB table. |
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*/ |
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public function renameTable($oldName, $newName) |
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{ |
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return 'ALTER TABLE ' . $this->db->quoteTableName($oldName) . ' RENAME TO ' . $this->db->quoteTableName($newName); |
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} |
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/** |
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* Builds a SQL statement for changing the definition of a column. |
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* @param string $table the table whose column is to be changed. The table name will be properly quoted by the method. |
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* @param string $column the name of the column to be changed. The name will be properly quoted by the method. |
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* @param string $type the new column type. The [[getColumnType()]] method will be invoked to convert abstract |
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* column type (if any) into the physical one. Anything that is not recognized as abstract type will be kept |
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* in the generated SQL. For example, 'string' will be turned into 'varchar(255)', while 'string not null' |
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* will become 'varchar(255) not null'. |
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* @return string the SQL statement for changing the definition of a column. |
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*/ |
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public function alterColumn($table, $column, $type) |
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{ |
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return 'ALTER TABLE ' . $this->db->quoteTableName($table) . ' ALTER COLUMN ' |
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. $this->db->quoteColumnName($column) . ' TYPE ' |
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. $this->getColumnType($type); |
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} |
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}
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