Interface TableSchemaInterface

An interface used by database TableSchema objects.

Namespace: Cake\Database\Schema

Constants summary

string

TYPE_BIGINTEGER ¶

'biginteger'
string

TYPE_BINARY ¶

'binary'
string

TYPE_BINARY_UUID ¶

'binaryuuid'
string

TYPE_BOOLEAN ¶

'boolean'
string

TYPE_CHAR ¶

'char'
string

TYPE_DATE ¶

'date'
string

TYPE_DATETIME ¶

'datetime'
string

TYPE_DATETIME_FRACTIONAL ¶

'datetimefractional'
string

TYPE_DECIMAL ¶

'decimal'
string

TYPE_FLOAT ¶

'float'
string

TYPE_INTEGER ¶

'integer'
string

TYPE_JSON ¶

'json'
string

TYPE_SMALLINTEGER ¶

'smallinteger'
string

TYPE_STRING ¶

'string'
string

TYPE_TEXT ¶

'text'
string

TYPE_TIME ¶

'time'
string

TYPE_TIMESTAMP ¶

'timestamp'
string

TYPE_TIMESTAMP_FRACTIONAL ¶

'timestampfractional'
string

TYPE_TIMESTAMP_TIMEZONE ¶

'timestamptimezone'
string

TYPE_TINYINTEGER ¶

'tinyinteger'
string

TYPE_UUID ¶

'uuid'

Method Summary

addColumn() public

Add a column to the table.
addConstraint() public

Add a constraint.
addIndex() public

Add an index.
baseColumnType() public

Returns the base type name for the provided column.
columns() public

Get the column names in the table.
constraints() public

Get the names of all the constraints in the table.
defaultValues() public

Get a hash of columns and their default values.
dropConstraint() public

Remove a constraint.
getColumn() public

Get column data in the table.
getColumnType() public

Returns column type or null if a column does not exist.
getConstraint() public

Read information about a constraint based on name.
getIndex() public

Read information about an index based on name.
getOptions() public

Gets the options for a table.
getPrimaryKey() public

Get the column(s) used for the primary key.
hasAutoincrement() public

Check whether or not a table has an autoIncrement column defined.
hasColumn() public

Returns true if a column exists in the schema.
indexes() public

Get the names of all the indexes in the table.
isNullable() public

Check whether or not a field is nullable
isTemporary() public

Gets whether the table is temporary in the database.
name() public

Get the name of the table.
removeColumn() public

Remove a column from the table schema.
setColumnType() public

Sets the type of a column.
setOptions() public

Sets the options for a table.
setTemporary() public

Sets whether the table is temporary in the database.
typeMap() public

Returns an array where the keys are the column names in the schema and the values the database type they have.

Method Detail

addColumn() public

addColumn(string $name, mixed $attrs)

Add a column to the table.

Attributes

Columns can have several attributes:

type The type of the column. This should be one of CakePHP's abstract types.
length The length of the column.
precision The number of decimal places to store for float and decimal types.
default The default value of the column.
null Whether or not the column can hold nulls.
fixed Whether or not the column is a fixed length column. This is only present/valid with string columns.
unsigned Whether or not the column is an unsigned column. This is only present/valid for integer, decimal, float columns.

In addition to the above keys, the following keys are implemented in some database dialects, but not all:

comment The comment for the column.

Parameters

string $name: The name of the column
string|array $attrs: The attributes for the column or the type name.

Returns

$this

addConstraint() public

addConstraint(string $name, mixed $attrs)

Add a constraint.

Used to add constraints to a table. For example primary keys, unique keys and foreign keys.

Attributes

type The type of constraint being added.
columns The columns in the index.
references The table, column a foreign key references.
update The behavior on update. Options are 'restrict', 'setNull', 'cascade', 'noAction'.
delete The behavior on delete. Options are 'restrict', 'setNull', 'cascade', 'noAction'.

The default for 'update' & 'delete' is 'cascade'.

Parameters

string $name: The name of the constraint.
array|string $attrs: The attributes for the constraint. If string it will be used as type.

Returns

$this

Throws

Cake\Database\Exception

addIndex() public

addIndex(string $name, mixed $attrs)

Add an index.

Used to add indexes, and full text indexes in platforms that support them.

Attributes

type The type of index being added.
columns The columns in the index.

Parameters

string $name: The name of the index.
array|string $attrs: The attributes for the index. If string it will be used as type.

Returns

$this

Throws

Cake\Database\Exception

baseColumnType() public

baseColumnType(string $column)

Returns the base type name for the provided column.

This represent the database type a more complex class is based upon.

Parameters

string $column: The column name to get the base type from

Returns

string|null

The base type name

columns() public

columns()

Get the column names in the table.

Returns

string[]

constraints() public

constraints()

Get the names of all the constraints in the table.

Returns

string[]

defaultValues() public

defaultValues()

Get a hash of columns and their default values.

Returns

array

dropConstraint() public

dropConstraint(string $name)

Remove a constraint.

Parameters

string $name: Name of the constraint to remove

Returns

$this

getColumn() public

getColumn(string $name)

Get column data in the table.

Parameters

string $name: The column name.

Returns

array|null

Column data or null.

getColumnType() public

getColumnType(string $name)

Returns column type or null if a column does not exist.

Parameters

string $name: The column to get the type of.

Returns

string|null

getConstraint() public

getConstraint(string $name)

Read information about a constraint based on name.

Parameters

string $name: The name of the constraint.

Returns

array|null

Array of constraint data, or null

getIndex() public

getIndex(string $name)

Read information about an index based on name.

Parameters

string $name: The name of the index.

Returns

array|null

Array of index data, or null

getOptions() public

getOptions()

Gets the options for a table.

Table options allow you to set platform specific table level options. For example the engine type in MySQL.

Returns

array

An array of options.

getPrimaryKey() public

getPrimaryKey()

Get the column(s) used for the primary key.

Returns

array

Column name(s) for the primary key. An empty list will be returned when the table has no primary key.

hasAutoincrement() public

hasAutoincrement()

Check whether or not a table has an autoIncrement column defined.

Returns

bool

hasColumn() public

hasColumn(string $name)

Returns true if a column exists in the schema.

Parameters

string $name: Column name.

Returns

bool

indexes() public

indexes()

Get the names of all the indexes in the table.

Returns

string[]

isNullable() public

isNullable(string $name)

Check whether or not a field is nullable

Missing columns are nullable.

Parameters

string $name: The column to get the type of.

Returns

bool

Whether or not the field is nullable.

isTemporary() public

isTemporary()

Gets whether the table is temporary in the database.

Returns

bool

The current temporary setting.

name() public

name()

Get the name of the table.

Returns

string

removeColumn() public

removeColumn(string $name)

Remove a column from the table schema.

If the column is not defined in the table, no error will be raised.

Parameters

string $name: The name of the column

Returns

$this

setColumnType() public

setColumnType(string $name, string $type)

Sets the type of a column.

Parameters

string $name: The column to set the type of.
string $type: The type to set the column to.

Returns

$this

setOptions() public

setOptions(array $options)

Sets the options for a table.

Table options allow you to set platform specific table level options. For example the engine type in MySQL.

Parameters

array $options: The options to set, or null to read options.

Returns

$this

setTemporary() public

setTemporary(bool $temporary)

Sets whether the table is temporary in the database.

Parameters

bool $temporary: Whether or not the table is to be temporary.

Returns

$this

typeMap() public

typeMap()

Returns an array where the keys are the column names in the schema and the values the database type they have.

Returns

array

Namespaces

Interface TableSchemaInterface

Constants summary

Method Summary

addColumn() public

addConstraint() public

addIndex() public

baseColumnType() public

columns() public

constraints() public

defaultValues() public

dropConstraint() public

getColumn() public

getColumnType() public

getConstraint() public

getIndex() public

getOptions() public

getPrimaryKey() public

hasAutoincrement() public

hasColumn() public

indexes() public

isNullable() public

isTemporary() public

name() public

removeColumn() public

setColumnType() public

setOptions() public

setTemporary() public

typeMap() public

Method Detail

addColumn() public

Attributes

Parameters

Returns

addConstraint() public

Attributes

Parameters

Returns

Throws

addIndex() public

Attributes

Parameters

Returns

Throws

baseColumnType() public

Parameters

Returns

columns() public

Returns

constraints() public

Returns

defaultValues() public

Returns

dropConstraint() public

Parameters

Returns

getColumn() public

Parameters

Returns

getColumnType() public

Parameters

Returns

getConstraint() public

Parameters

Returns

getIndex() public

Parameters

Returns

getOptions() public

Returns

getPrimaryKey() public

Returns

hasAutoincrement() public

Returns

hasColumn() public

Parameters

Returns

indexes() public

Returns

isNullable() public