Example: Node type

This example demonstrates how to programmatically define a content type.

This is an example outlining how a module can define a new content type. The example content type allows users to specify multiple colors, a quantity, and an image. It could be used as some kind of rudimentary inventory-tracking system.

The basic pattern for defining a content type is to tell Backdrop about the node fields and view modes. Backdrop will then take over and manage the storage for this content type.

Remember that most content types do not require any custom code, as they are usually created using the Backdrop user interface.

At absolute minimum, in order to provide a content type, you have to implement hook_form(). The Node module can take care of the rest, if you want.

Next, since we want to add fields to our content type, we implement hook_node_type_insert(), which gives us a chance to modify recently-created content types.

Backdrop is able to handle deletion of our content, including dependencies based on re-use of our field instances, so we don't have to manage any of it.

Consult the Field API documentation.

See also

field_example.module

Parent topics

File

modules/examples/node_type_example/node_type_example.module, line 9

Hook implementations for the Node Type Example module.

Functions

Name	Location	Description
node_type_example_entity_info_alter	modules/examples/node_type_example/node_type_example.module	Implements hook_entity_info_alter().
node_type_example_field_formatter_info	modules/examples/node_type_example/node_type_example.module	Implements hook_field_formatter_info().
node_type_example_field_formatter_view	modules/examples/node_type_example/node_type_example.module	Implements hook_field_formatter_view().
node_type_example_form	modules/examples/node_type_example/node_type_example.module	Implements hook_form().
node_type_example_menu	modules/examples/node_type_example/node_type_example.module	Implements hook_menu().
node_type_example_node_type_insert	modules/examples/node_type_example/node_type_example.module	Implements hook_node_type_insert().
node_type_example_page	modules/examples/node_type_example/node_type_example.module	Callback that builds our content.
node_type_example_theme	modules/examples/node_type_example/node_type_example.module	Implements hook_theme().
theme_node_type_example_color	modules/examples/node_type_example/node_type_example.module	A custom theme function.
_node_type_example_installed_fields	modules/examples/node_type_example/node_type_example.module	Defines the fields for our content type.
_node_type_example_installed_instances	modules/examples/node_type_example/node_type_example.module	Defines the field instances for our content type.

Classes

Name	Location	Description
NodeTypeExampleTest	modules/examples/node_type_example/tests/node_type_example.test	Functionality tests for The Node Type Example module.