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.
207 lines
9.1 KiB
207 lines
9.1 KiB
<?php |
|
/** |
|
* @link http://www.yiiframework.com/ |
|
* @copyright Copyright (c) 2008 Yii Software LLC |
|
* @license http://www.yiiframework.com/license/ |
|
*/ |
|
|
|
namespace yii\db\sqlite; |
|
|
|
use yii\db\Exception; |
|
use yii\base\InvalidParamException; |
|
use yii\base\NotSupportedException; |
|
|
|
/** |
|
* QueryBuilder is the query builder for SQLite databases. |
|
* |
|
* @author Qiang Xue <qiang.xue@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 = array( |
|
Schema::TYPE_PK => 'integer PRIMARY KEY AUTOINCREMENT NOT NULL', |
|
Schema::TYPE_STRING => 'varchar(255)', |
|
Schema::TYPE_TEXT => 'text', |
|
Schema::TYPE_SMALLINT => 'smallint', |
|
Schema::TYPE_INTEGER => 'integer', |
|
Schema::TYPE_BIGINT => 'bigint', |
|
Schema::TYPE_FLOAT => 'float', |
|
Schema::TYPE_DECIMAL => 'decimal(10,0)', |
|
Schema::TYPE_DATETIME => 'datetime', |
|
Schema::TYPE_TIMESTAMP => 'timestamp', |
|
Schema::TYPE_TIME => 'time', |
|
Schema::TYPE_DATE => 'date', |
|
Schema::TYPE_BINARY => 'blob', |
|
Schema::TYPE_BOOLEAN => 'boolean', |
|
Schema::TYPE_MONEY => 'decimal(19,4)', |
|
); |
|
|
|
/** |
|
* 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) |
|
{ |
|
$db = $this->db; |
|
$table = $db->getTableSchema($tableName); |
|
if ($table !== null && $table->sequenceName !== null) { |
|
if ($value === null) { |
|
$key = reset($table->primaryKey); |
|
$tableName = $db->quoteTableName($tableName); |
|
$value = $db->createCommand("SELECT MAX('$key') FROM $tableName")->queryScalar(); |
|
} else { |
|
$value = (int)$value - 1; |
|
} |
|
try { |
|
// it's possible sqlite_sequence does not exist |
|
$db->createCommand("UPDATE sqlite_sequence SET seq='$value' WHERE name='{$table->name}'")->execute(); |
|
} catch (Exception $e) { |
|
} |
|
} elseif ($table === null) { |
|
throw new InvalidParamException("Table not found: $tableName"); |
|
} else { |
|
throw new InvalidParamException("There is not sequence associated with table '$tableName'.'"); |
|
} |
|
} |
|
|
|
/** |
|
* Enables or disables integrity check. |
|
* @param boolean $check whether to turn on or off the integrity check. |
|
* @param string $schema the schema of the tables. Meaningless for SQLite. |
|
* @param string $table the table name. Meaningless for SQLite. |
|
* @throws NotSupportedException this is not supported by SQLite |
|
*/ |
|
public function checkIntegrity($check = true, $schema = '', $table = '') |
|
{ |
|
throw new NotSupportedException(__METHOD__ . ' is not supported by SQLite.'); |
|
} |
|
|
|
/** |
|
* Builds a SQL statement for truncating a DB table. |
|
* @param string $table the table to be truncated. The name will be properly quoted by the method. |
|
* @return string the SQL statement for truncating a DB table. |
|
*/ |
|
public function truncateTable($table) |
|
{ |
|
return "DELETE FROM " . $this->db->quoteTableName($table); |
|
} |
|
|
|
/** |
|
* 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 dropping a DB column. |
|
* @param string $table the table whose column is to be dropped. The name will be properly quoted by the method. |
|
* @param string $column the name of the column to be dropped. The name will be properly quoted by the method. |
|
* @return string the SQL statement for dropping a DB column. |
|
* @throws NotSupportedException this is not supported by SQLite |
|
*/ |
|
public function dropColumn($table, $column) |
|
{ |
|
throw new NotSupportedException(__METHOD__ . ' is not supported by SQLite.'); |
|
} |
|
|
|
/** |
|
* Builds a SQL statement for renaming a column. |
|
* @param string $table the table whose column is to be renamed. The name will be properly quoted by the method. |
|
* @param string $oldName the old name of the column. The name will be properly quoted by the method. |
|
* @param string $newName the new name of the column. The name will be properly quoted by the method. |
|
* @return string the SQL statement for renaming a DB column. |
|
* @throws NotSupportedException this is not supported by SQLite |
|
*/ |
|
public function renameColumn($table, $oldName, $newName) |
|
{ |
|
throw new NotSupportedException(__METHOD__ . ' is not supported by SQLite.'); |
|
} |
|
|
|
/** |
|
* Builds a SQL statement for adding a foreign key constraint to an existing table. |
|
* The method will properly quote the table and column names. |
|
* @param string $name the name of the foreign key constraint. |
|
* @param string $table the table that the foreign key constraint will be added to. |
|
* @param string|array $columns the name of the column to that the constraint will be added on. |
|
* If there are multiple columns, separate them with commas or use an array to represent them. |
|
* @param string $refTable the table that the foreign key references to. |
|
* @param string|array $refColumns the name of the column that the foreign key references to. |
|
* If there are multiple columns, separate them with commas or use an array to represent them. |
|
* @param string $delete the ON DELETE option. Most DBMS support these options: RESTRICT, CASCADE, NO ACTION, SET DEFAULT, SET NULL |
|
* @param string $update the ON UPDATE option. Most DBMS support these options: RESTRICT, CASCADE, NO ACTION, SET DEFAULT, SET NULL |
|
* @return string the SQL statement for adding a foreign key constraint to an existing table. |
|
* @throws NotSupportedException this is not supported by SQLite |
|
*/ |
|
public function addForeignKey($name, $table, $columns, $refTable, $refColumns, $delete = null, $update = null) |
|
{ |
|
throw new NotSupportedException(__METHOD__ . ' is not supported by SQLite.'); |
|
} |
|
|
|
/** |
|
* Builds a SQL statement for dropping a foreign key constraint. |
|
* @param string $name the name of the foreign key constraint to be dropped. The name will be properly quoted by the method. |
|
* @param string $table the table whose foreign is to be dropped. The name will be properly quoted by the method. |
|
* @return string the SQL statement for dropping a foreign key constraint. |
|
* @throws NotSupportedException this is not supported by SQLite |
|
*/ |
|
public function dropForeignKey($name, $table) |
|
{ |
|
throw new NotSupportedException(__METHOD__ . ' is not supported by SQLite.'); |
|
} |
|
|
|
/** |
|
* 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 $type the new column type. The [[getColumnType()]] method will be invoked to convert abstract |
|
* column type (if any) into the physical one. Anything that is not recognized as abstract type will be kept |
|
* in the generated SQL. For example, 'string' will be turned into 'varchar(255)', while 'string not null' |
|
* will become 'varchar(255) not null'. |
|
* @return string the SQL statement for changing the definition of a column. |
|
* @throws NotSupportedException this is not supported by SQLite |
|
*/ |
|
public function alterColumn($table, $column, $type) |
|
{ |
|
throw new NotSupportedException(__METHOD__ . ' is not supported by SQLite.'); |
|
} |
|
|
|
/** |
|
* Builds a SQL statement for adding a primary key constraint to an existing table. |
|
* @param string $name the name of the primary key constraint. |
|
* @param string $table the table that the primary key constraint will be added to. |
|
* @param string|array $columns comma separated string or array of columns that the primary key will consist of. |
|
* @return string the SQL statement for adding a primary key constraint to an existing table. |
|
* @throws NotSupportedException this is not supported by SQLite |
|
*/ |
|
public function addPrimaryKey($name, $table, $columns) |
|
{ |
|
throw new NotSupportedException(__METHOD__ . ' is not supported by SQLite.'); |
|
} |
|
|
|
/** |
|
* Builds a SQL statement for removing a primary key constraint to an existing table. |
|
* @param string $name the name of the primary key constraint to be removed. |
|
* @param string $table the table that the primary key constraint will be removed from. |
|
* @return string the SQL statement for removing a primary key constraint from an existing table. |
|
* @throws NotSupportedException this is not supported by SQLite * |
|
*/ |
|
public function dropPrimaryKey($name, $table) |
|
{ |
|
throw new NotSupportedException(__METHOD__ . ' is not supported by SQLite.'); |
|
} |
|
}
|
|
|