NAME

Raku TOP Driver - The common driver for Raku TOP backends

TITLE

Raku TOP Driver

SUBTITLE

The common driver for Raku TOP backends

AUTHOR

Tim Nelson - https://github.com/wayland

Database::Driver

The parent class for all the different Database Drivers (backends).

role	Database::Driver

Methods

.useTable

method	useTable(Table :$table, *%params)

Returns a table belonging to the database. Parameters vary from driver to driver.

Table::Driver

role	Table::Driver does Associative does Positional {

Attributes

Field @.fields

Stores the fields

%.field-indices

For looking up fields by name

Methods

.new

Creates a Table::Driver.

.new(Database::Driver :$database, Relation :$frontend-object, Str :$action, Str :%fields)

Parameters to .new are:

Relation $frontend-object

The frontend object that is using this backend object.

Database::Driver :$database

The Database::Driver with which this Table::Driver is connected.

Str $action

The action to take -- see the parameter of the same name on the frontend object

Str %fields

If relevant, the fields to use in creating/altering the table

exists

Returns True if the table already exists.

method	.exists(Str :$true-error, Str :$false-error)

If false-error is passed, and the table doesn't exist, the function will die with the passed error.

.add-field

Adds a field to the table

.add-field(Table :$relation, Str :$name, Any:U $type)

Str $name

The name of the field being added

Any:U $type

The type of the field, as a Raku type