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309 lines
11 KiB
PHP
309 lines
11 KiB
PHP
<?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;
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/**
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* SchemaBuilderTrait contains shortcut methods to create instances of [[ColumnSchemaBuilder]].
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*
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* These can be used in database migrations to define database schema types using a PHP interface.
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* This is useful to define a schema in a DBMS independent way so that the application may run on
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* different DBMS the same way.
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*
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* For example you may use the following code inside your migration files:
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*
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* ```php
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* $this->createTable('example_table', [
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* 'id' => $this->primaryKey(),
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* 'name' => $this->string(64)->notNull(),
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* 'type' => $this->integer()->notNull()->defaultValue(10),
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* 'description' => $this->text(),
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* 'rule_name' => $this->string(64),
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* 'data' => $this->text(),
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* 'created_at' => $this->datetime()->notNull(),
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* 'updated_at' => $this->datetime(),
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* ]);
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* ```
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*
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* @author Vasenin Matvey <vaseninm@gmail.com>
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* @since 2.0.6
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*/
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trait SchemaBuilderTrait
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{
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/**
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* @return Connection the database connection to be used for schema building.
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*/
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abstract protected function getDb();
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/**
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* Creates a primary key column.
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* @param int $length column size or precision definition.
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* This parameter will be ignored if not supported by the DBMS.
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* @return ColumnSchemaBuilder the column instance which can be further customized.
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* @since 2.0.6
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*/
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public function primaryKey($length = null)
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{
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return $this->getDb()->getSchema()->createColumnSchemaBuilder(Schema::TYPE_PK, $length);
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}
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/**
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* Creates a big primary key column.
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* @param int $length column size or precision definition.
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* This parameter will be ignored if not supported by the DBMS.
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* @return ColumnSchemaBuilder the column instance which can be further customized.
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* @since 2.0.6
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*/
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public function bigPrimaryKey($length = null)
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{
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return $this->getDb()->getSchema()->createColumnSchemaBuilder(Schema::TYPE_BIGPK, $length);
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}
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/**
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* Creates a char column.
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* @param int $length column size definition i.e. the maximum string length.
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* This parameter will be ignored if not supported by the DBMS.
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* @return ColumnSchemaBuilder the column instance which can be further customized.
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* @since 2.0.8
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*/
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public function char($length = null)
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{
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return $this->getDb()->getSchema()->createColumnSchemaBuilder(Schema::TYPE_CHAR, $length);
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}
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/**
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* Creates a string column.
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* @param int $length column size definition i.e. the maximum string length.
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* This parameter will be ignored if not supported by the DBMS.
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* @return ColumnSchemaBuilder the column instance which can be further customized.
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* @since 2.0.6
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*/
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public function string($length = null)
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{
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return $this->getDb()->getSchema()->createColumnSchemaBuilder(Schema::TYPE_STRING, $length);
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}
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/**
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* Creates a text column.
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* @return ColumnSchemaBuilder the column instance which can be further customized.
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* @since 2.0.6
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*/
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public function text()
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{
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return $this->getDb()->getSchema()->createColumnSchemaBuilder(Schema::TYPE_TEXT);
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}
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/**
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* Creates a tinyint column. If tinyint is not supported by the DBMS, smallint will be used.
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* @param int $length column size or precision definition.
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* This parameter will be ignored if not supported by the DBMS.
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* @return ColumnSchemaBuilder the column instance which can be further customized.
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* @since 2.0.14
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*/
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public function tinyInteger($length = null)
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{
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return $this->getDb()->getSchema()->createColumnSchemaBuilder(Schema::TYPE_TINYINT, $length);
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}
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/**
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* Creates a smallint column.
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* @param int $length column size or precision definition.
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* This parameter will be ignored if not supported by the DBMS.
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* @return ColumnSchemaBuilder the column instance which can be further customized.
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* @since 2.0.6
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*/
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public function smallInteger($length = null)
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{
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return $this->getDb()->getSchema()->createColumnSchemaBuilder(Schema::TYPE_SMALLINT, $length);
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}
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/**
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* Creates an integer column.
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* @param int $length column size or precision definition.
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* This parameter will be ignored if not supported by the DBMS.
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* @return ColumnSchemaBuilder the column instance which can be further customized.
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* @since 2.0.6
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*/
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public function integer($length = null)
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{
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return $this->getDb()->getSchema()->createColumnSchemaBuilder(Schema::TYPE_INTEGER, $length);
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}
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/**
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* Creates a bigint column.
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* @param int $length column size or precision definition.
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* This parameter will be ignored if not supported by the DBMS.
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* @return ColumnSchemaBuilder the column instance which can be further customized.
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* @since 2.0.6
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*/
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public function bigInteger($length = null)
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{
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return $this->getDb()->getSchema()->createColumnSchemaBuilder(Schema::TYPE_BIGINT, $length);
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}
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/**
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* Creates a float column.
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* @param int $precision column value precision. First parameter passed to the column type, e.g. FLOAT(precision).
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* This parameter will be ignored if not supported by the DBMS.
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* @return ColumnSchemaBuilder the column instance which can be further customized.
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* @since 2.0.6
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*/
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public function float($precision = null)
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{
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return $this->getDb()->getSchema()->createColumnSchemaBuilder(Schema::TYPE_FLOAT, $precision);
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}
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/**
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* Creates a double column.
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* @param int $precision column value precision. First parameter passed to the column type, e.g. DOUBLE(precision).
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* This parameter will be ignored if not supported by the DBMS.
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* @return ColumnSchemaBuilder the column instance which can be further customized.
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* @since 2.0.6
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*/
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public function double($precision = null)
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{
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return $this->getDb()->getSchema()->createColumnSchemaBuilder(Schema::TYPE_DOUBLE, $precision);
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}
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/**
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* Creates a decimal column.
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* @param int $precision column value precision, which is usually the total number of digits.
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* First parameter passed to the column type, e.g. DECIMAL(precision, scale).
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* This parameter will be ignored if not supported by the DBMS.
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* @param int $scale column value scale, which is usually the number of digits after the decimal point.
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* Second parameter passed to the column type, e.g. DECIMAL(precision, scale).
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* This parameter will be ignored if not supported by the DBMS.
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* @return ColumnSchemaBuilder the column instance which can be further customized.
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* @since 2.0.6
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*/
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public function decimal($precision = null, $scale = null)
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{
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$length = [];
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if ($precision !== null) {
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$length[] = $precision;
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}
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if ($scale !== null) {
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$length[] = $scale;
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}
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return $this->getDb()->getSchema()->createColumnSchemaBuilder(Schema::TYPE_DECIMAL, $length);
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}
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/**
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* Creates a datetime column.
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* @param int $precision column value precision. First parameter passed to the column type, e.g. DATETIME(precision).
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* This parameter will be ignored if not supported by the DBMS.
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* @return ColumnSchemaBuilder the column instance which can be further customized.
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* @since 2.0.6
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*/
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public function dateTime($precision = null)
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{
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return $this->getDb()->getSchema()->createColumnSchemaBuilder(Schema::TYPE_DATETIME, $precision);
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}
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/**
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* Creates a timestamp column.
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* @param int $precision column value precision. First parameter passed to the column type, e.g. TIMESTAMP(precision).
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* This parameter will be ignored if not supported by the DBMS.
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* @return ColumnSchemaBuilder the column instance which can be further customized.
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* @since 2.0.6
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*/
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public function timestamp($precision = null)
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{
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return $this->getDb()->getSchema()->createColumnSchemaBuilder(Schema::TYPE_TIMESTAMP, $precision);
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}
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/**
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* Creates a time column.
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* @param int $precision column value precision. First parameter passed to the column type, e.g. TIME(precision).
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* This parameter will be ignored if not supported by the DBMS.
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* @return ColumnSchemaBuilder the column instance which can be further customized.
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* @since 2.0.6
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*/
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public function time($precision = null)
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{
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return $this->getDb()->getSchema()->createColumnSchemaBuilder(Schema::TYPE_TIME, $precision);
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}
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/**
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* Creates a date column.
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* @return ColumnSchemaBuilder the column instance which can be further customized.
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* @since 2.0.6
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*/
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public function date()
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{
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return $this->getDb()->getSchema()->createColumnSchemaBuilder(Schema::TYPE_DATE);
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}
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/**
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* Creates a binary column.
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* @param int $length column size or precision definition.
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* This parameter will be ignored if not supported by the DBMS.
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* @return ColumnSchemaBuilder the column instance which can be further customized.
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* @since 2.0.6
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*/
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public function binary($length = null)
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{
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return $this->getDb()->getSchema()->createColumnSchemaBuilder(Schema::TYPE_BINARY, $length);
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}
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/**
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* Creates a boolean column.
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* @return ColumnSchemaBuilder the column instance which can be further customized.
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* @since 2.0.6
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*/
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public function boolean()
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{
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return $this->getDb()->getSchema()->createColumnSchemaBuilder(Schema::TYPE_BOOLEAN);
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}
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/**
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* Creates a money column.
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* @param int $precision column value precision, which is usually the total number of digits.
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* First parameter passed to the column type, e.g. DECIMAL(precision, scale).
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* This parameter will be ignored if not supported by the DBMS.
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* @param int $scale column value scale, which is usually the number of digits after the decimal point.
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* Second parameter passed to the column type, e.g. DECIMAL(precision, scale).
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* This parameter will be ignored if not supported by the DBMS.
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* @return ColumnSchemaBuilder the column instance which can be further customized.
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* @since 2.0.6
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*/
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public function money($precision = null, $scale = null)
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{
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$length = [];
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if ($precision !== null) {
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$length[] = $precision;
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}
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if ($scale !== null) {
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$length[] = $scale;
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}
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return $this->getDb()->getSchema()->createColumnSchemaBuilder(Schema::TYPE_MONEY, $length);
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}
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/**
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* Creates a JSON column.
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* @return ColumnSchemaBuilder the column instance which can be further customized.
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* @since 2.0.14
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* @throws \yii\base\Exception
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*/
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public function json()
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{
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/*
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* TODO Remove in Yii 2.1
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*
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* Disabled due to bug in MySQL extension
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* @link https://bugs.php.net/bug.php?id=70384
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*/
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if (version_compare(PHP_VERSION, '5.6', '<') && $this->getDb()->getDriverName() === 'mysql') {
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throw new \yii\base\Exception('JSON column type is not supported in PHP < 5.6');
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}
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return $this->getDb()->getSchema()->createColumnSchemaBuilder(Schema::TYPE_JSON);
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}
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}
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