Docs4dev
Docs
yii / 2.0 / yii-db-schemabuildertrait.html

Trait yii\db\SchemaBuilderTrait

All Classes | Methods
Implemented by yii\db\Migration
Available since version 2.0.6
Source Code https://github.com/yiisoft/yii2/blob/master/framework/db/SchemaBuilderTrait.php

SchemaBuilderTrait contains shortcut methods to create instances of yii\db\ColumnSchemaBuilder.

These can be used in database migrations to define database schema types using a PHP interface. This is useful to define a schema in a DBMS independent way so that the application may run on different DBMS the same way.

For example you may use the following code inside your migration files:

$this->createTable('example_table', [
  'id' => $this->primaryKey(),
  'name' => $this->string(64)->notNull(),
  'type' => $this->integer()->notNull()->defaultValue(10),
  'description' => $this->text(),
  'rule_name' => $this->string(64),
  'data' => $this->text(),
  'created_at' => $this->datetime()->notNull(),
  'updated_at' => $this->datetime(),
]);

Public Methods

Method Description Defined By
bigInteger() Creates a bigint column. yii\db\SchemaBuilderTrait
bigPrimaryKey() Creates a big primary key column. yii\db\SchemaBuilderTrait
binary() Creates a binary column. yii\db\SchemaBuilderTrait
boolean() Creates a boolean column. yii\db\SchemaBuilderTrait
char() Creates a char column. yii\db\SchemaBuilderTrait
date() Creates a date column. yii\db\SchemaBuilderTrait
dateTime() Creates a datetime column. yii\db\SchemaBuilderTrait
decimal() Creates a decimal column. yii\db\SchemaBuilderTrait
double() Creates a double column. yii\db\SchemaBuilderTrait
float() Creates a float column. yii\db\SchemaBuilderTrait
integer() Creates an integer column. yii\db\SchemaBuilderTrait
money() Creates a money column. yii\db\SchemaBuilderTrait
primaryKey() Creates a primary key column. yii\db\SchemaBuilderTrait
smallInteger() Creates a smallint column. yii\db\SchemaBuilderTrait
string() Creates a string column. yii\db\SchemaBuilderTrait
text() Creates a text column. yii\db\SchemaBuilderTrait
time() Creates a time column. yii\db\SchemaBuilderTrait
timestamp() Creates a timestamp column. yii\db\SchemaBuilderTrait

Protected Methods

Method Description Defined By
getDb() yii\db\SchemaBuilderTrait

Method Details

bigInteger() public method (available since version 2.0.6)

Creates a bigint column.

public yii\db\ColumnSchemaBuilder bigInteger ( $length = null )
$length integer

Column size or precision definition. This parameter will be ignored if not supported by the DBMS.
return yii\db\ColumnSchemaBuilder

The column instance which can be further customized.

bigPrimaryKey() public method (available since version 2.0.6)

Creates a big primary key column.

public yii\db\ColumnSchemaBuilder bigPrimaryKey ( $length = null )
$length integer

Column size or precision definition. This parameter will be ignored if not supported by the DBMS.
return yii\db\ColumnSchemaBuilder

The column instance which can be further customized.

binary() public method (available since version 2.0.6)

Creates a binary column.

public yii\db\ColumnSchemaBuilder binary ( $length = null )
$length integer

Column size or precision definition. This parameter will be ignored if not supported by the DBMS.
return yii\db\ColumnSchemaBuilder

The column instance which can be further customized.

boolean() public method (available since version 2.0.6)

Creates a boolean column.

public yii\db\ColumnSchemaBuilder boolean ( )
return yii\db\ColumnSchemaBuilder

The column instance which can be further customized.

char() public method (available since version 2.0.8)

Creates a char column.

public yii\db\ColumnSchemaBuilder char ( $length = null )
$length integer

Column size definition i.e. the maximum string length. This parameter will be ignored if not supported by the DBMS.
return yii\db\ColumnSchemaBuilder

The column instance which can be further customized.

date() public method (available since version 2.0.6)

Creates a date column.

public yii\db\ColumnSchemaBuilder date ( )
return yii\db\ColumnSchemaBuilder

The column instance which can be further customized.

dateTime() public method (available since version 2.0.6)

Creates a datetime column.

public yii\db\ColumnSchemaBuilder dateTime ( $precision = null )
$precision integer

Column value precision. First parameter passed to the column type, e.g. DATETIME(precision). This parameter will be ignored if not supported by the DBMS.
return yii\db\ColumnSchemaBuilder

The column instance which can be further customized.

decimal() public method (available since version 2.0.6)

Creates a decimal column.

public yii\db\ColumnSchemaBuilder decimal ( $precision = null, $scale = null )
$precision integer

Column value precision, which is usually the total number of digits. First parameter passed to the column type, e.g. DECIMAL(precision, scale). This parameter will be ignored if not supported by the DBMS.
$scale integer

Column value scale, which is usually the number of digits after the decimal point. Second parameter passed to the column type, e.g. DECIMAL(precision, scale). This parameter will be ignored if not supported by the DBMS.
return yii\db\ColumnSchemaBuilder

The column instance which can be further customized.

double() public method (available since version 2.0.6)

Creates a double column.

public yii\db\ColumnSchemaBuilder double ( $precision = null )
$precision integer

Column value precision. First parameter passed to the column type, e.g. DOUBLE(precision). This parameter will be ignored if not supported by the DBMS.
return yii\db\ColumnSchemaBuilder

The column instance which can be further customized.

float() public method (available since version 2.0.6)

Creates a float column.

public yii\db\ColumnSchemaBuilder float ( $precision = null )
$precision integer

Column value precision. First parameter passed to the column type, e.g. FLOAT(precision). This parameter will be ignored if not supported by the DBMS.
return yii\db\ColumnSchemaBuilder

The column instance which can be further customized.

getDb() protected abstract method

protected abstract yii\db\Connection getDb ( )
return yii\db\Connection

The database connection to be used for schema building.

integer() public method (available since version 2.0.6)

Creates an integer column.

public yii\db\ColumnSchemaBuilder integer ( $length = null )
$length integer

Column size or precision definition. This parameter will be ignored if not supported by the DBMS.
return yii\db\ColumnSchemaBuilder

The column instance which can be further customized.

money() public method (available since version 2.0.6)

Creates a money column.

public yii\db\ColumnSchemaBuilder money ( $precision = null, $scale = null )
$precision integer

Column value precision, which is usually the total number of digits. First parameter passed to the column type, e.g. DECIMAL(precision, scale). This parameter will be ignored if not supported by the DBMS.
$scale integer

Column value scale, which is usually the number of digits after the decimal point. Second parameter passed to the column type, e.g. DECIMAL(precision, scale). This parameter will be ignored if not supported by the DBMS.
return yii\db\ColumnSchemaBuilder

The column instance which can be further customized.

primaryKey() public method (available since version 2.0.6)

Creates a primary key column.

public yii\db\ColumnSchemaBuilder primaryKey ( $length = null )
$length integer

Column size or precision definition. This parameter will be ignored if not supported by the DBMS.
return yii\db\ColumnSchemaBuilder

The column instance which can be further customized.

smallInteger() public method (available since version 2.0.6)

Creates a smallint column.

public yii\db\ColumnSchemaBuilder smallInteger ( $length = null )
$length integer

Column size or precision definition. This parameter will be ignored if not supported by the DBMS.
return yii\db\ColumnSchemaBuilder

The column instance which can be further customized.

string() public method (available since version 2.0.6)

Creates a string column.

public yii\db\ColumnSchemaBuilder string ( $length = null )
$length integer

Column size definition i.e. the maximum string length. This parameter will be ignored if not supported by the DBMS.
return yii\db\ColumnSchemaBuilder

The column instance which can be further customized.

text() public method (available since version 2.0.6)

Creates a text column.

public yii\db\ColumnSchemaBuilder text ( )
return yii\db\ColumnSchemaBuilder

The column instance which can be further customized.

time() public method (available since version 2.0.6)

Creates a time column.

public yii\db\ColumnSchemaBuilder time ( $precision = null )
$precision integer

Column value precision. First parameter passed to the column type, e.g. TIME(precision). This parameter will be ignored if not supported by the DBMS.
return yii\db\ColumnSchemaBuilder

The column instance which can be further customized.

timestamp() public method (available since version 2.0.6)

Creates a timestamp column.

public yii\db\ColumnSchemaBuilder timestamp ( $precision = null )
$precision integer

Column value precision. First parameter passed to the column type, e.g. TIMESTAMP(precision). This parameter will be ignored if not supported by the DBMS.
return yii\db\ColumnSchemaBuilder

The column instance which can be further customized.

© 2008–2017 by Yii Software LLC
Licensed under the three clause BSD license.
http://www.yiiframework.com/doc-2.0/yii-db-schemabuildertrait.html