An interface used by TableSchema objects.
Returns the base type name for the provided column. This represent the database type a more complex class is based upon.
Returns an array where the keys are the column names in the schema and the values the database type they have.
addColumn( string $name , array $attrs )
Add a column to the table.
Columns can have several attributes:
type The type of the column. This should be one of CakePHP's abstract types.length The length of the column.precision The number of decimal places to store for float and decimal types.default The default value of the column.null Whether or not the column can hold nulls.fixed Whether or not the column is a fixed length column. This is only present/valid with string columns.unsigned Whether or not the column is an unsigned column. This is only present/valid for integer, decimal, float columns.In addition to the above keys, the following keys are implemented in some database dialects, but not all:
comment The comment for the column.$name $attrs baseColumnType( string $column )
Returns the base type name for the provided column. This represent the database type a more complex class is based upon.
$column defaultValues( )
Get a hash of columns and their default values.
getColumn( string $name )
Get column data in the table.
$name getColumnType( string $name )
Returns column type or null if a column does not exist.
$name 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.
hasColumn( string $name )
Returns true if a column exists in the schema.
$name isNullable( string $name )
Check whether or not a field is nullable
Missing columns are nullable.
$name removeColumn( string $name )
Remove a column from the table schema.
If the column is not defined in the table, no error will be raised.
$name setColumnType( string $name , string $type )
Sets the type of a column.
$name $type 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.
$options typeMap( )
Returns an array where the keys are the column names in the schema and the values the database type they have.
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https://api.cakephp.org/3.5/class-Cake.Datasource.SchemaInterface.html