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90 lines
3.1 KiB
90 lines
3.1 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\cubrid; |
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use yii\base\InvalidParamException; |
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/** |
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* QueryBuilder is the query builder for CUBRID databases (version 9.1.x and higher). |
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* |
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* @author Carsten Brandt <mail@cebe.cc> |
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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 => 'int NOT NULL AUTO_INCREMENT PRIMARY KEY', |
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Schema::TYPE_BIGPK => 'bigint NOT NULL AUTO_INCREMENT PRIMARY KEY', |
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Schema::TYPE_STRING => 'varchar(255)', |
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Schema::TYPE_TEXT => 'varchar', |
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Schema::TYPE_SMALLINT => 'smallint', |
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Schema::TYPE_INTEGER => 'int', |
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Schema::TYPE_BIGINT => 'bigint', |
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Schema::TYPE_FLOAT => 'float(7)', |
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Schema::TYPE_DECIMAL => 'decimal(10,0)', |
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Schema::TYPE_DATETIME => 'datetime', |
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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 => 'blob', |
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Schema::TYPE_BOOLEAN => 'smallint', |
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Schema::TYPE_MONEY => 'decimal(19,4)', |
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]; |
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/** |
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* Creates a SQL statement for resetting the sequence value of a table's primary key. |
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* The sequence will be reset such that the primary key of the next new row inserted |
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* will have the specified value or 1. |
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* @param string $tableName the name of the table whose primary key sequence will be reset |
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* @param mixed $value the value for the primary key of the next new row inserted. If this is not set, |
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* the next new row's primary key will have a value 1. |
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* @return string the SQL statement for resetting sequence |
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* @throws InvalidParamException if the table does not exist or there is no sequence associated with the table. |
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*/ |
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public function resetSequence($tableName, $value = null) |
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{ |
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$table = $this->db->getTableSchema($tableName); |
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if ($table !== null && $table->sequenceName !== null) { |
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$tableName = $this->db->quoteTableName($tableName); |
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if ($value === null) { |
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$key = reset($table->primaryKey); |
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$value = (int)$this->db->createCommand("SELECT MAX(`$key`) FROM " . $this->db->schema->quoteTableName($tableName))->queryScalar() + 1; |
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} else { |
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$value = (int)$value; |
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} |
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return "ALTER TABLE " . $this->db->schema->quoteTableName($tableName) . " AUTO_INCREMENT=$value;"; |
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} elseif ($table === null) { |
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throw new InvalidParamException("Table not found: $tableName"); |
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} else { |
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throw new InvalidParamException("There is not sequence associated with table '$tableName'."); |
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} |
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} |
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/** |
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* @inheritDocs |
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*/ |
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public function buildLimit($limit, $offset) |
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{ |
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$sql = ''; |
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// limit is not optional in CUBRID |
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// http://www.cubrid.org/manual/90/en/LIMIT%20Clause |
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// "You can specify a very big integer for row_count to display to the last row, starting from a specific row." |
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if ($limit !== null && $limit >= 0) { |
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$sql = 'LIMIT ' . (int)$limit; |
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if ($offset > 0) { |
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$sql .= ' OFFSET ' . (int)$offset; |
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} |
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} elseif ($offset > 0) { |
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$sql = 'LIMIT 9223372036854775807 OFFSET ' . (int)$offset; // 2^63-1 |
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} |
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return $sql; |
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} |
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}
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