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<?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\sqlite; |
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use yii\base\InvalidArgumentException; |
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use yii\base\NotSupportedException; |
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use yii\db\Connection; |
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use yii\db\Constraint; |
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use yii\db\Expression; |
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use yii\db\ExpressionInterface; |
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use yii\db\Query; |
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use yii\helpers\StringHelper; |
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/** |
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* QueryBuilder is the query builder for SQLite databases. |
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* |
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* @author Qiang Xue <[email protected]> |
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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 => 'integer PRIMARY KEY AUTOINCREMENT NOT NULL', |
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Schema::TYPE_UPK => 'integer UNSIGNED PRIMARY KEY AUTOINCREMENT NOT NULL', |
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Schema::TYPE_BIGPK => 'integer PRIMARY KEY AUTOINCREMENT NOT NULL', |
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Schema::TYPE_UBIGPK => 'integer UNSIGNED PRIMARY KEY AUTOINCREMENT NOT NULL', |
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Schema::TYPE_CHAR => 'char(1)', |
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Schema::TYPE_STRING => 'varchar(255)', |
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Schema::TYPE_TEXT => 'text', |
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Schema::TYPE_TINYINT => 'tinyint', |
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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 => 'float', |
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Schema::TYPE_DOUBLE => 'double', |
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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 => 'boolean', |
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Schema::TYPE_MONEY => 'decimal(19,4)', |
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]; |
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/** |
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* {@inheritdoc} |
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*/ |
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protected function defaultExpressionBuilders() |
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{ |
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return array_merge(parent::defaultExpressionBuilders(), [ |
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'yii\db\conditions\LikeCondition' => 'yii\db\sqlite\conditions\LikeConditionBuilder', |
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'yii\db\conditions\InCondition' => 'yii\db\sqlite\conditions\InConditionBuilder', |
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]); |
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} |
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/** |
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* {@inheritdoc} |
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* @see https://stackoverflow.com/questions/15277373/sqlite-upsert-update-or-insert/15277374#15277374 |
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*/ |
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public function upsert($table, $insertColumns, $updateColumns, &$params) |
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{ |
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/** @var Constraint[] $constraints */ |
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[$uniqueNames, $insertNames, $updateNames] = $this->prepareUpsertColumns($table, $insertColumns, $updateColumns, $constraints); |
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if (empty($uniqueNames)) { |
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return $this->insert($table, $insertColumns, $params); |
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} |
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[, $placeholders, $values, $params] = $this->prepareInsertValues($table, $insertColumns, $params); |
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$insertSql = 'INSERT OR IGNORE INTO ' . $this->db->quoteTableName($table) |
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. (!empty($insertNames) ? ' (' . implode(', ', $insertNames) . ')' : '') |
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. (!empty($placeholders) ? ' VALUES (' . implode(', ', $placeholders) . ')' : $values); |
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if ($updateColumns === false) { |
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return $insertSql; |
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} |
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$updateCondition = ['or']; |
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$quotedTableName = $this->db->quoteTableName($table); |
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foreach ($constraints as $constraint) { |
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$constraintCondition = ['and']; |
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foreach ($constraint->columnNames as $name) { |
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$quotedName = $this->db->quoteColumnName($name); |
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$constraintCondition[] = "$quotedTableName.$quotedName=(SELECT $quotedName FROM `EXCLUDED`)"; |
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} |
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$updateCondition[] = $constraintCondition; |
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} |
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if ($updateColumns === true) { |
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$updateColumns = []; |
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foreach ($updateNames as $name) { |
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$quotedName = $this->db->quoteColumnName($name); |
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if (strrpos($quotedName, '.') === false) { |
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$quotedName = "(SELECT $quotedName FROM `EXCLUDED`)"; |
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} |
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$updateColumns[$name] = new Expression($quotedName); |
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} |
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} |
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$updateSql = 'WITH "EXCLUDED" (' . implode(', ', $insertNames) |
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. ') AS (' . (!empty($placeholders) ? 'VALUES (' . implode(', ', $placeholders) . ')' : ltrim($values, ' ')) . ') ' |
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. $this->update($table, $updateColumns, $updateCondition, $params); |
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return "$updateSql; $insertSql;"; |
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} |
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/** |
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* Generates a batch INSERT SQL statement. |
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* |
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* For example, |
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* |
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* ```php |
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* $connection->createCommand()->batchInsert('user', ['name', 'age'], [ |
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* ['Tom', 30], |
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* ['Jane', 20], |
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* ['Linda', 25], |
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* ])->execute(); |
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* ``` |
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* |
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* Note that the values in each row must match the corresponding column names. |
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* |
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* @param string $table the table that new rows will be inserted into. |
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* @param array $columns the column names |
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* @param array|\Generator $rows the rows to be batch inserted into the table |
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* @return string the batch INSERT SQL statement |
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*/ |
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public function batchInsert($table, $columns, $rows, &$params = []) |
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{ |
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if (empty($rows)) { |
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return ''; |
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} |
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// SQLite supports batch insert natively since 3.7.11 |
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// http://www.sqlite.org/releaselog/3_7_11.html |
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$this->db->open(); // ensure pdo is not null |
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if (version_compare($this->db->getServerVersion(), '3.7.11', '>=')) { |
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return parent::batchInsert($table, $columns, $rows, $params); |
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} |
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$schema = $this->db->getSchema(); |
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if (($tableSchema = $schema->getTableSchema($table)) !== null) { |
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$columnSchemas = $tableSchema->columns; |
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} else { |
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$columnSchemas = []; |
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} |
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$values = []; |
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foreach ($rows as $row) { |
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$vs = []; |
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foreach ($row as $i => $value) { |
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if (isset($columnSchemas[$columns[$i]])) { |
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$value = $columnSchemas[$columns[$i]]->dbTypecast($value); |
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} |
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if (is_string($value)) { |
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$value = $schema->quoteValue($value); |
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} elseif (is_float($value)) { |
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// ensure type cast always has . as decimal separator in all locales |
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$value = StringHelper::floatToString($value); |
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} elseif ($value === false) { |
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$value = 0; |
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} elseif ($value === null) { |
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$value = 'NULL'; |
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} elseif ($value instanceof ExpressionInterface) { |
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$value = $this->buildExpression($value, $params); |
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} |
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$vs[] = $value; |
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} |
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$values[] = implode(', ', $vs); |
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} |
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if (empty($values)) { |
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return ''; |
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} |
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foreach ($columns as $i => $name) { |
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$columns[$i] = $schema->quoteColumnName($name); |
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} |
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return 'INSERT INTO ' . $schema->quoteTableName($table) |
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. ' (' . implode(', ', $columns) . ') SELECT ' . implode(' UNION SELECT ', $values); |
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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 $value the value for the primary key of the next new row inserted. If this is not set, |
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* the next new row's primary key will have a value 1. |
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* @return string the SQL statement for resetting sequence |
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* @throws InvalidArgumentException if the table does not exist or there is no sequence associated with the table. |
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*/ |
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public function resetSequence($tableName, $value = null) |
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{ |
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$db = $this->db; |
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$table = $db->getTableSchema($tableName); |
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if ($table !== null && $table->sequenceName !== null) { |
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$tableName = $db->quoteTableName($tableName); |
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if ($value === null) { |
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$key = $this->db->quoteColumnName(reset($table->primaryKey)); |
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$value = $this->db->useMaster(function (Connection $db) use ($key, $tableName) { |
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return $db->createCommand("SELECT MAX($key) FROM $tableName")->queryScalar(); |
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}); |
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} else { |
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$value = (int) $value - 1; |
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} |
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return "UPDATE sqlite_sequence SET seq='$value' WHERE name='{$table->name}'"; |
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} elseif ($table === null) { |
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throw new InvalidArgumentException("Table not found: $tableName"); |
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} |
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throw new InvalidArgumentException("There is not sequence associated with table '$tableName'.'"); |
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} |
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/** |
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* Enables or disables integrity check. |
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* @param bool $check whether to turn on or off the integrity check. |
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* @param string $schema the schema of the tables. Meaningless for SQLite. |
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* @param string $table the table name. Meaningless for SQLite. |
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* @return string the SQL statement for checking integrity |
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* @throws NotSupportedException this is not supported by SQLite |
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*/ |
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public function checkIntegrity($check = true, $schema = '', $table = '') |
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{ |
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return 'PRAGMA foreign_keys=' . (int) $check; |
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} |
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/** |
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* Builds a SQL statement for truncating a DB table. |
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* @param string $table the table to be truncated. The name will be properly quoted by the method. |
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* @return string the SQL statement for truncating a DB table. |
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*/ |
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public function truncateTable($table) |
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{ |
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return 'DELETE FROM ' . $this->db->quoteTableName($table); |
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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 dropping a DB column. |
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* @param string $table the table whose column is to be dropped. The name will be properly quoted by the method. |
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* @param string $column the name of the column to be dropped. The name will be properly quoted by the method. |
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* @return string the SQL statement for dropping a DB column. |
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* @throws NotSupportedException this is not supported by SQLite |
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*/ |
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public function dropColumn($table, $column) |
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{ |
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throw new NotSupportedException(__METHOD__ . ' is not supported by SQLite.'); |
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} |
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/** |
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* Builds a SQL statement for renaming a column. |
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* @param string $table the table whose column is to be renamed. The name will be properly quoted by the method. |
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* @param string $oldName the old name of the column. The name will be properly quoted by the method. |
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* @param string $newName the new name of the column. The name will be properly quoted by the method. |
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* @return string the SQL statement for renaming a DB column. |
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* @throws NotSupportedException this is not supported by SQLite |
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*/ |
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public function renameColumn($table, $oldName, $newName) |
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{ |
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throw new NotSupportedException(__METHOD__ . ' is not supported by SQLite.'); |
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} |
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/** |
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* Builds a SQL statement for adding a foreign key constraint to an existing table. |
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* The method will properly quote the table and column names. |
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* @param string $name the name of the foreign key constraint. |
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* @param string $table the table that the foreign key constraint will be added to. |
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* @param string|array $columns the name of the column to that the constraint will be added on. |
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* If there are multiple columns, separate them with commas or use an array to represent them. |
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* @param string $refTable the table that the foreign key references to. |
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* @param string|array $refColumns the name of the column that the foreign key references to. |
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* If there are multiple columns, separate them with commas or use an array to represent them. |
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* @param string $delete the ON DELETE option. Most DBMS support these options: RESTRICT, CASCADE, NO ACTION, SET DEFAULT, SET NULL |
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* @param string $update the ON UPDATE option. Most DBMS support these options: RESTRICT, CASCADE, NO ACTION, SET DEFAULT, SET NULL |
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* @return string the SQL statement for adding a foreign key constraint to an existing table. |
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* @throws NotSupportedException this is not supported by SQLite |
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*/ |
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public function addForeignKey($name, $table, $columns, $refTable, $refColumns, $delete = null, $update = null) |
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{ |
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throw new NotSupportedException(__METHOD__ . ' is not supported by SQLite.'); |
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} |
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/** |
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* Builds a SQL statement for dropping a foreign key constraint. |
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* @param string $name the name of the foreign key constraint to be dropped. The name will be properly quoted by the method. |
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* @param string $table the table whose foreign is to be dropped. The name will be properly quoted by the method. |
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* @return string the SQL statement for dropping a foreign key constraint. |
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* @throws NotSupportedException this is not supported by SQLite |
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*/ |
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public function dropForeignKey($name, $table) |
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{ |
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throw new NotSupportedException(__METHOD__ . ' is not supported by SQLite.'); |
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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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* |
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* @param string $table the table to be renamed. The name will be properly quoted by the method. |
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* @param string $newName the new table name. The name will be properly quoted by the method. |
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* @return string the SQL statement for renaming a DB table. |
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*/ |
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2 |
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public function renameTable($table, $newName) |
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{ |
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2 |
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return 'ALTER TABLE ' . $this->db->quoteTableName($table) . ' 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. |
326
|
|
|
* @param string $column the name of the column to be changed. The name will be properly quoted by the method. |
327
|
|
|
* @param string $type the new column type. The [[getColumnType()]] method will be invoked to convert abstract |
328
|
|
|
* column type (if any) into the physical one. Anything that is not recognized as abstract type will be kept |
329
|
|
|
* in the generated SQL. For example, 'string' will be turned into 'varchar(255)', while 'string not null' |
330
|
|
|
* will become 'varchar(255) not null'. |
331
|
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|
* @return string the SQL statement for changing the definition of a column. |
332
|
|
|
* @throws NotSupportedException this is not supported by SQLite |
333
|
|
|
*/ |
334
|
|
|
public function alterColumn($table, $column, $type) |
335
|
|
|
{ |
336
|
|
|
throw new NotSupportedException(__METHOD__ . ' is not supported by SQLite.'); |
337
|
|
|
} |
338
|
|
|
|
339
|
|
|
/** |
340
|
|
|
* Builds a SQL statement for adding a primary key constraint to an existing table. |
341
|
|
|
* @param string $name the name of the primary key constraint. |
342
|
|
|
* @param string $table the table that the primary key constraint will be added to. |
343
|
|
|
* @param string|array $columns comma separated string or array of columns that the primary key will consist of. |
344
|
|
|
* @return string the SQL statement for adding a primary key constraint to an existing table. |
345
|
|
|
* @throws NotSupportedException this is not supported by SQLite |
346
|
|
|
*/ |
347
|
|
|
public function addPrimaryKey($name, $table, $columns) |
348
|
|
|
{ |
349
|
|
|
throw new NotSupportedException(__METHOD__ . ' is not supported by SQLite.'); |
350
|
|
|
} |
351
|
|
|
|
352
|
|
|
/** |
353
|
|
|
* Builds a SQL statement for removing a primary key constraint to an existing table. |
354
|
|
|
* @param string $name the name of the primary key constraint to be removed. |
355
|
|
|
* @param string $table the table that the primary key constraint will be removed from. |
356
|
|
|
* @return string the SQL statement for removing a primary key constraint from an existing table. |
357
|
|
|
* @throws NotSupportedException this is not supported by SQLite |
358
|
|
|
*/ |
359
|
|
|
public function dropPrimaryKey($name, $table) |
360
|
|
|
{ |
361
|
|
|
throw new NotSupportedException(__METHOD__ . ' is not supported by SQLite.'); |
362
|
|
|
} |
363
|
|
|
|
364
|
|
|
/** |
365
|
|
|
* {@inheritdoc} |
366
|
|
|
* @throws NotSupportedException this is not supported by SQLite. |
367
|
|
|
*/ |
368
|
|
|
public function addUnique($name, $table, $columns) |
369
|
|
|
{ |
370
|
|
|
throw new NotSupportedException(__METHOD__ . ' is not supported by SQLite.'); |
371
|
|
|
} |
372
|
|
|
|
373
|
|
|
/** |
374
|
|
|
* {@inheritdoc} |
375
|
|
|
* @throws NotSupportedException this is not supported by SQLite. |
376
|
|
|
*/ |
377
|
|
|
public function dropUnique($name, $table) |
378
|
|
|
{ |
379
|
|
|
throw new NotSupportedException(__METHOD__ . ' is not supported by SQLite.'); |
380
|
|
|
} |
381
|
|
|
|
382
|
|
|
/** |
383
|
|
|
* {@inheritdoc} |
384
|
|
|
* @throws NotSupportedException this is not supported by SQLite. |
385
|
|
|
*/ |
386
|
|
|
public function addCheck($name, $table, $expression) |
387
|
|
|
{ |
388
|
|
|
throw new NotSupportedException(__METHOD__ . ' is not supported by SQLite.'); |
389
|
|
|
} |
390
|
|
|
|
391
|
|
|
/** |
392
|
|
|
* {@inheritdoc} |
393
|
|
|
* @throws NotSupportedException this is not supported by SQLite. |
394
|
|
|
*/ |
395
|
|
|
public function dropCheck($name, $table) |
396
|
|
|
{ |
397
|
|
|
throw new NotSupportedException(__METHOD__ . ' is not supported by SQLite.'); |
398
|
|
|
} |
399
|
|
|
|
400
|
|
|
/** |
401
|
|
|
* {@inheritdoc} |
402
|
|
|
* @throws NotSupportedException this is not supported by SQLite. |
403
|
|
|
*/ |
404
|
|
|
public function addDefaultValue($name, $table, $column, $value) |
405
|
|
|
{ |
406
|
|
|
throw new NotSupportedException(__METHOD__ . ' is not supported by SQLite.'); |
407
|
|
|
} |
408
|
|
|
|
409
|
|
|
/** |
410
|
|
|
* {@inheritdoc} |
411
|
|
|
* @throws NotSupportedException this is not supported by SQLite. |
412
|
|
|
*/ |
413
|
|
|
public function dropDefaultValue($name, $table) |
414
|
|
|
{ |
415
|
|
|
throw new NotSupportedException(__METHOD__ . ' is not supported by SQLite.'); |
416
|
|
|
} |
417
|
|
|
|
418
|
|
|
/** |
419
|
|
|
* {@inheritdoc} |
420
|
|
|
* @throws NotSupportedException |
421
|
|
|
* @since 2.0.8 |
422
|
|
|
*/ |
423
|
|
|
public function addCommentOnColumn($table, $column, $comment) |
424
|
|
|
{ |
425
|
|
|
throw new NotSupportedException(__METHOD__ . ' is not supported by SQLite.'); |
426
|
|
|
} |
427
|
|
|
|
428
|
|
|
/** |
429
|
|
|
* {@inheritdoc} |
430
|
|
|
* @throws NotSupportedException |
431
|
|
|
* @since 2.0.8 |
432
|
|
|
*/ |
433
|
|
|
public function addCommentOnTable($table, $comment) |
434
|
|
|
{ |
435
|
|
|
throw new NotSupportedException(__METHOD__ . ' is not supported by SQLite.'); |
436
|
|
|
} |
437
|
|
|
|
438
|
|
|
/** |
439
|
|
|
* {@inheritdoc} |
440
|
|
|
* @throws NotSupportedException |
441
|
|
|
* @since 2.0.8 |
442
|
|
|
*/ |
443
|
|
|
public function dropCommentFromColumn($table, $column) |
444
|
|
|
{ |
445
|
|
|
throw new NotSupportedException(__METHOD__ . ' is not supported by SQLite.'); |
446
|
|
|
} |
447
|
|
|
|
448
|
|
|
/** |
449
|
|
|
* {@inheritdoc} |
450
|
|
|
* @throws NotSupportedException |
451
|
|
|
* @since 2.0.8 |
452
|
|
|
*/ |
453
|
|
|
public function dropCommentFromTable($table) |
454
|
|
|
{ |
455
|
|
|
throw new NotSupportedException(__METHOD__ . ' is not supported by SQLite.'); |
456
|
|
|
} |
457
|
|
|
|
458
|
|
|
/** |
459
|
|
|
* {@inheritdoc} |
460
|
|
|
*/ |
461
|
339 |
|
public function buildLimit($limit, $offset) |
462
|
|
|
{ |
463
|
339 |
|
$sql = ''; |
464
|
339 |
|
if ($this->hasLimit($limit)) { |
465
|
32 |
|
$sql = 'LIMIT ' . $limit; |
466
|
32 |
|
if ($this->hasOffset($offset)) { |
467
|
32 |
|
$sql .= ' OFFSET ' . $offset; |
468
|
|
|
} |
469
|
332 |
|
} elseif ($this->hasOffset($offset)) { |
470
|
|
|
// limit is not optional in SQLite |
471
|
|
|
// http://www.sqlite.org/syntaxdiagrams.html#select-stmt |
472
|
2 |
|
$sql = "LIMIT 9223372036854775807 OFFSET $offset"; // 2^63-1 |
473
|
|
|
} |
474
|
|
|
|
475
|
339 |
|
return $sql; |
476
|
|
|
} |
477
|
|
|
|
478
|
|
|
/** |
479
|
|
|
* {@inheritdoc} |
480
|
|
|
*/ |
481
|
339 |
|
public function build($query, $params = []) |
482
|
|
|
{ |
483
|
339 |
|
$query = $query->prepare($this); |
484
|
|
|
|
485
|
339 |
|
$params = empty($params) ? $query->params : array_merge($params, $query->params); |
486
|
|
|
|
487
|
|
|
$clauses = [ |
488
|
339 |
|
$this->buildSelect($query->select, $params, $query->distinct, $query->selectOption), |
489
|
339 |
|
$this->buildFrom($query->from, $params), |
490
|
339 |
|
$this->buildJoin($query->join, $params), |
491
|
339 |
|
$this->buildWhere($query->where, $params), |
492
|
339 |
|
$this->buildGroupBy($query->groupBy, $params), |
493
|
339 |
|
$this->buildHaving($query->having, $params), |
494
|
|
|
]; |
495
|
|
|
|
496
|
339 |
|
$sql = implode($this->separator, array_filter($clauses)); |
497
|
339 |
|
$sql = $this->buildOrderByAndLimit($sql, $query->orderBy, $query->limit, $query->offset, $params); |
498
|
|
|
|
499
|
339 |
|
$union = $this->buildUnion($query->union, $params); |
500
|
339 |
|
if ($union !== '') { |
501
|
2 |
|
$sql = "$sql{$this->separator}$union"; |
502
|
|
|
} |
503
|
|
|
|
504
|
339 |
|
return [$sql, $params]; |
505
|
|
|
} |
506
|
|
|
|
507
|
|
|
/** |
508
|
|
|
* {@inheritdoc} |
509
|
|
|
*/ |
510
|
339 |
|
public function buildUnion($unions, &$params) |
511
|
|
|
{ |
512
|
339 |
|
if (empty($unions)) { |
513
|
339 |
|
return ''; |
514
|
|
|
} |
515
|
|
|
|
516
|
2 |
|
$result = ''; |
517
|
|
|
|
518
|
2 |
|
foreach ($unions as $i => $union) { |
519
|
2 |
|
$query = $union['query']; |
520
|
2 |
|
if ($query instanceof Query) { |
521
|
2 |
|
[$unions[$i]['query'], $params] = $this->build($query, $params); |
522
|
|
|
} |
523
|
|
|
|
524
|
2 |
|
$result .= ' UNION ' . ($union['all'] ? 'ALL ' : '') . ' ' . $unions[$i]['query']; |
525
|
|
|
} |
526
|
|
|
|
527
|
2 |
|
return trim($result); |
528
|
|
|
} |
529
|
|
|
} |
530
|
|
|
|
This check marks access to variables or properties that have not been declared yet. While PHP has no explicit notion of declaring a variable, accessing it before a value is assigned to it is most likely a bug.