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Class yii\db\ColumnSchema

All Classes | Properties | Methods

Inheritance	yii\db\ColumnSchema » yii\base\BaseObject
Implements	yii\base\Configurable
Subclasses	yii\db\mssql\ColumnSchema, yii\db\mysql\ColumnSchema, yii\db\pgsql\ColumnSchema
Available since version	2.0
Source Code	https://github.com/yiisoft/yii2/blob/master/framework/db/ColumnSchema.php

ColumnSchema class describes the metadata of a column in a database table.

Public Properties

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Property	Type	Description	Defined By
$allowNull	boolean	Whether this column can be null.	yii\db\ColumnSchema
$autoIncrement	boolean	Whether this column is auto-incremental	yii\db\ColumnSchema
$comment	string	Comment of this column.	yii\db\ColumnSchema
$dbType	string	The DB type of this column.	yii\db\ColumnSchema
$defaultValue	mixed	Default value of this column	yii\db\ColumnSchema
$enumValues	array	Enumerable values.	yii\db\ColumnSchema
$isPrimaryKey	boolean	Whether this column is a primary key	yii\db\ColumnSchema
$name	string	Name of this column (without quotes).	yii\db\ColumnSchema
$phpType	string	The PHP type of this column.	yii\db\ColumnSchema
$precision	integer	Precision of the column data, if it is numeric.	yii\db\ColumnSchema
$scale	integer	Scale of the column data, if it is numeric.	yii\db\ColumnSchema
$size	integer	Display size of the column.	yii\db\ColumnSchema
$type	string	Abstract type of this column.	yii\db\ColumnSchema
$unsigned	boolean	Whether this column is unsigned.	yii\db\ColumnSchema

Public Methods

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Method	Description	Defined By
__call()	Calls the named method which is not a class method.	yii\base\BaseObject
__construct()	Constructor.	yii\base\BaseObject
__get()	Returns the value of an object property.	yii\base\BaseObject
__isset()	Checks if a property is set, i.e. defined and not null.	yii\base\BaseObject
__set()	Sets value of an object property.	yii\base\BaseObject
__unset()	Sets an object property to null.	yii\base\BaseObject
canGetProperty()	Returns a value indicating whether a property can be read.	yii\base\BaseObject
canSetProperty()	Returns a value indicating whether a property can be set.	yii\base\BaseObject
className()	Returns the fully qualified name of this class.	yii\base\BaseObject
dbTypecast()	Converts the input value according to $type and $dbType for use in a db query.	yii\db\ColumnSchema
hasMethod()	Returns a value indicating whether a method is defined.	yii\base\BaseObject
hasProperty()	Returns a value indicating whether a property is defined.	yii\base\BaseObject
init()	Initializes the object.	yii\base\BaseObject
phpTypecast()	Converts the input value according to $phpType after retrieval from the database.	yii\db\ColumnSchema

Protected Methods

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Method	Description	Defined By
typecast()	Converts the input value according to $phpType after retrieval from the database.	yii\db\ColumnSchema

Property Details

$allowNull public property

Whether this column can be null.

public boolean $allowNull = null

$autoIncrement public property

Whether this column is auto-incremental

public boolean $autoIncrement = false

$comment public property

Comment of this column. Not all DBMS support this.

public string $comment = null

$dbType public property

The DB type of this column. Possible DB types vary according to the type of DBMS.

public string $dbType = null

$defaultValue public property

Default value of this column

public mixed $defaultValue = null

$enumValues public property

Enumerable values. This is set only if the column is declared to be an enumerable type.

public array $enumValues = null

$isPrimaryKey public property

Whether this column is a primary key

public boolean $isPrimaryKey = null

$name public property

Name of this column (without quotes).

public string $name = null

$phpType public property

The PHP type of this column. Possible PHP types include: string, boolean, integer, double, array.

public string $phpType = null

$precision public property

Precision of the column data, if it is numeric.

public integer $precision = null

$scale public property

Scale of the column data, if it is numeric.

public integer $scale = null

$size public property

Display size of the column.

public integer $size = null

$type public property

Abstract type of this column. Possible abstract types include: char, string, text, boolean, smallint, integer, bigint, float, decimal, datetime, timestamp, time, date, binary, and money.

public string $type = null

$unsigned public property

Whether this column is unsigned. This is only meaningful when $type is smallint, integer or bigint.

public boolean $unsigned = null

Method Details

dbTypecast() public method

Converts the input value according to $type and $dbType for use in a db query.

If the value is null or an yii\db\Expression, it will not be converted.

public mixed dbTypecast ( $value )
$value	mixed	Input value
return	mixed	Converted value. This may also be an array containing the value as the first element and the PDO type as the second element.

phpTypecast() public method

Converts the input value according to $phpType after retrieval from the database.

If the value is null or an yii\db\Expression, it will not be converted.

public mixed phpTypecast ( $value )
$value	mixed	Input value
return	mixed	Converted value

typecast() protected method (available since version 2.0.3)

Converts the input value according to $phpType after retrieval from the database.

If the value is null or an yii\db\Expression, it will not be converted.

protected mixed typecast ( $value )
$value	mixed	Input value
return	mixed	Converted value