You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
208 lines
8.5 KiB
208 lines
8.5 KiB
<?php |
|
/** |
|
* @link http://www.yiiframework.com/ |
|
* @copyright Copyright (c) 2008 Yii Software LLC |
|
* @license http://www.yiiframework.com/license/ |
|
*/ |
|
|
|
namespace yii\db\pgsql; |
|
|
|
use yii\base\InvalidParamException; |
|
|
|
/** |
|
* QueryBuilder is the query builder for PostgreSQL databases. |
|
* |
|
* @author Gevik Babakhani <gevikb@gmail.com> |
|
* @since 2.0 |
|
*/ |
|
class QueryBuilder extends \yii\db\QueryBuilder |
|
{ |
|
/** |
|
* @var array mapping from abstract column types (keys) to physical column types (values). |
|
*/ |
|
public $typeMap = [ |
|
Schema::TYPE_PK => 'serial NOT NULL PRIMARY KEY', |
|
Schema::TYPE_BIGPK => 'bigserial NOT NULL PRIMARY KEY', |
|
Schema::TYPE_STRING => 'varchar(255)', |
|
Schema::TYPE_TEXT => 'text', |
|
Schema::TYPE_SMALLINT => 'smallint', |
|
Schema::TYPE_INTEGER => 'integer', |
|
Schema::TYPE_BIGINT => 'bigint', |
|
Schema::TYPE_FLOAT => 'double precision', |
|
Schema::TYPE_DOUBLE => 'double precision', |
|
Schema::TYPE_DECIMAL => 'numeric(10,0)', |
|
Schema::TYPE_DATETIME => 'timestamp(0)', |
|
Schema::TYPE_TIMESTAMP => 'timestamp(0)', |
|
Schema::TYPE_TIME => 'time(0)', |
|
Schema::TYPE_DATE => 'date', |
|
Schema::TYPE_BINARY => 'bytea', |
|
Schema::TYPE_BOOLEAN => 'boolean', |
|
Schema::TYPE_MONEY => 'numeric(19,4)', |
|
]; |
|
|
|
/** |
|
* @var array map of query condition to builder methods. |
|
* These methods are used by [[buildCondition]] to build SQL conditions from array syntax. |
|
*/ |
|
protected $conditionBuilders = [ |
|
'NOT' => 'buildNotCondition', |
|
'AND' => 'buildAndCondition', |
|
'OR' => 'buildAndCondition', |
|
'BETWEEN' => 'buildBetweenCondition', |
|
'NOT BETWEEN' => 'buildBetweenCondition', |
|
'IN' => 'buildInCondition', |
|
'NOT IN' => 'buildInCondition', |
|
'LIKE' => 'buildLikeCondition', |
|
'ILIKE' => 'buildLikeCondition', |
|
'NOT LIKE' => 'buildLikeCondition', |
|
'NOT ILIKE' => 'buildLikeCondition', |
|
'OR LIKE' => 'buildLikeCondition', |
|
'OR ILIKE' => 'buildLikeCondition', |
|
'OR NOT LIKE' => 'buildLikeCondition', |
|
'OR NOT ILIKE' => 'buildLikeCondition', |
|
'EXISTS' => 'buildExistsCondition', |
|
'NOT EXISTS' => 'buildExistsCondition', |
|
]; |
|
|
|
|
|
/** |
|
* Builds a SQL statement for dropping an index. |
|
* @param string $name the name of the index to be dropped. The name will be properly quoted by the method. |
|
* @param string $table the table whose index is to be dropped. The name will be properly quoted by the method. |
|
* @return string the SQL statement for dropping an index. |
|
*/ |
|
public function dropIndex($name, $table) |
|
{ |
|
return 'DROP INDEX ' . $this->db->quoteTableName($name); |
|
} |
|
|
|
/** |
|
* Builds a SQL statement for renaming a DB table. |
|
* @param string $oldName the table to be renamed. The name will be properly quoted by the method. |
|
* @param string $newName the new table name. The name will be properly quoted by the method. |
|
* @return string the SQL statement for renaming a DB table. |
|
*/ |
|
public function renameTable($oldName, $newName) |
|
{ |
|
return 'ALTER TABLE ' . $this->db->quoteTableName($oldName) . ' RENAME TO ' . $this->db->quoteTableName($newName); |
|
} |
|
|
|
/** |
|
* Creates a SQL statement for resetting the sequence value of a table's primary key. |
|
* The sequence will be reset such that the primary key of the next new row inserted |
|
* will have the specified value or 1. |
|
* @param string $tableName the name of the table whose primary key sequence will be reset |
|
* @param mixed $value the value for the primary key of the next new row inserted. If this is not set, |
|
* the next new row's primary key will have a value 1. |
|
* @return string the SQL statement for resetting sequence |
|
* @throws InvalidParamException if the table does not exist or there is no sequence associated with the table. |
|
*/ |
|
public function resetSequence($tableName, $value = null) |
|
{ |
|
$table = $this->db->getTableSchema($tableName); |
|
if ($table !== null && $table->sequenceName !== null) { |
|
// c.f. http://www.postgresql.org/docs/8.1/static/functions-sequence.html |
|
$sequence = $this->db->quoteTableName($table->sequenceName); |
|
$tableName = $this->db->quoteTableName($tableName); |
|
if ($value === null) { |
|
$key = reset($table->primaryKey); |
|
$value = "(SELECT COALESCE(MAX(\"{$key}\"),0) FROM {$tableName})+1"; |
|
} else { |
|
$value = (int) $value; |
|
} |
|
|
|
return "SELECT SETVAL('$sequence',$value,false)"; |
|
} elseif ($table === null) { |
|
throw new InvalidParamException("Table not found: $tableName"); |
|
} else { |
|
throw new InvalidParamException("There is not sequence associated with table '$tableName'."); |
|
} |
|
} |
|
|
|
/** |
|
* Builds a SQL statement for enabling or disabling integrity check. |
|
* @param boolean $check whether to turn on or off the integrity check. |
|
* @param string $schema the schema of the tables. |
|
* @param string $table the table name. |
|
* @return string the SQL statement for checking integrity |
|
*/ |
|
public function checkIntegrity($check = true, $schema = '', $table = '') |
|
{ |
|
$enable = $check ? 'ENABLE' : 'DISABLE'; |
|
$schema = $schema ? $schema : $this->db->getSchema()->defaultSchema; |
|
$tableNames = $table ? [$table] : $this->db->getSchema()->getTableNames($schema); |
|
$command = ''; |
|
|
|
foreach ($tableNames as $tableName) { |
|
$tableName = '"' . $schema . '"."' . $tableName . '"'; |
|
$command .= "ALTER TABLE $tableName $enable TRIGGER ALL; "; |
|
} |
|
|
|
// enable to have ability to alter several tables |
|
$this->db->getMasterPdo()->setAttribute(\PDO::ATTR_EMULATE_PREPARES, true); |
|
|
|
return $command; |
|
} |
|
|
|
/** |
|
* Builds a SQL statement for changing the definition of a column. |
|
* @param string $table the table whose column is to be changed. The table name will be properly quoted by the method. |
|
* @param string $column the name of the column to be changed. The name will be properly quoted by the method. |
|
* @param string $type the new column type. The [[getColumnType()]] method will be invoked to convert abstract |
|
* column type (if any) into the physical one. Anything that is not recognized as abstract type will be kept |
|
* in the generated SQL. For example, 'string' will be turned into 'varchar(255)', while 'string not null' |
|
* will become 'varchar(255) not null'. You can also use PostgreSQL-specific syntax such as `SET NOT NULL`. |
|
* @return string the SQL statement for changing the definition of a column. |
|
*/ |
|
public function alterColumn($table, $column, $type) |
|
{ |
|
// https://github.com/yiisoft/yii2/issues/4492 |
|
// http://www.postgresql.org/docs/9.1/static/sql-altertable.html |
|
if (!preg_match('/^(DROP|SET|RESET)\s+/i', $type)) { |
|
$type = 'TYPE ' . $this->getColumnType($type); |
|
} |
|
return 'ALTER TABLE ' . $this->db->quoteTableName($table) . ' ALTER COLUMN ' |
|
. $this->db->quoteColumnName($column) . ' ' . $type; |
|
} |
|
|
|
/** |
|
* @inheritdoc |
|
*/ |
|
public function batchInsert($table, $columns, $rows) |
|
{ |
|
$schema = $this->db->getSchema(); |
|
if (($tableSchema = $schema->getTableSchema($table)) !== null) { |
|
$columnSchemas = $tableSchema->columns; |
|
} else { |
|
$columnSchemas = []; |
|
} |
|
|
|
$values = []; |
|
foreach ($rows as $row) { |
|
$vs = []; |
|
foreach ($row as $i => $value) { |
|
if (!is_array($value) && isset($columnSchemas[$columns[$i]])) { |
|
$value = $columnSchemas[$columns[$i]]->dbTypecast($value); |
|
} |
|
if (is_string($value)) { |
|
$value = $schema->quoteValue($value); |
|
} elseif ($value === true) { |
|
$value = 'TRUE'; |
|
} elseif ($value === false) { |
|
$value = 'FALSE'; |
|
} elseif ($value === null) { |
|
$value = 'NULL'; |
|
} |
|
$vs[] = $value; |
|
} |
|
$values[] = '(' . implode(', ', $vs) . ')'; |
|
} |
|
|
|
foreach ($columns as $i => $name) { |
|
$columns[$i] = $schema->quoteColumnName($name); |
|
} |
|
|
|
return 'INSERT INTO ' . $schema->quoteTableName($table) |
|
. ' (' . implode(', ', $columns) . ') VALUES ' . implode(', ', $values); |
|
} |
|
}
|
|
|