Has One Edit
This module allows you to directly edit the fields of a related
has_one object directly, without having to mess around with
GridField or links to
ModelAdmin. If the related
has_one doesn't exist yet, then this module also creates the object and sets up the relation for you on first write.
This module has been tested editing a
has_one in both a
GridFieldDetailForm and on a generic
Basic testing has been carried out on 4.0.x-dev. Extensive testing may be required as SS4 becomes more solid.
To use this module, simply add a field to the CMS fields for your object in your
getCMSFields() method. The name of the field should be
For example, say you have a
Show and that
has_one has a field called
Title you want to edit. You'd add the field
TextField::create('Show-_1_-Title', 'Show Title').
If you do not require that the outputted name of the field matches the value you supply, you can also use a colon as a separator instead of
Generating fields with the
If you simply want to display all the CMS fields for a related object, you can add the
ProvidesHasOneInlineFields trait to the object. This adds a method which calls
DataObject and return the
FormFields for that object. Those
FormFields will be converted for use with this module by adding the relation name and separator to their name.
In the owning object, where you want to display the fields, call
HasOneEdit::getInlineFields($this, 'my_has_one_name'). This will return the fields for adding to the CMS - e.g. you
can display the related object's fields in their own tab by calling
$fields->addFieldsToTab('Root.RelatedObject', HasOneEdit::getInlineFields($this, 'Relation')).
This has the advantage of running the entire
getCMSFields() call tree (e.g.
updateCMSFields for any functionality provided via extension) etc. without having to repeat logic
in a lot of places.
You can also implement a method
public function provideHasOneInlineFields($relationName) returning
FieldList|FormField to provide a custom interface different
getCMSFields() (e.g. just a small subset of fields). In this case, all the field names should be in the form
$relationName . HasOneEdit::FIELD_SEPARATOR . $dataObjectFieldName.
This method will be called by
HasOneEdit::getInlineFields even if your class does not use the
Using with your own form
To add support to your own forms, you need to add the
SGN\HasOneEdit\UpdateFormExtension extension to your controller and call
$this->extend('updateEditForm', $form) before returning the form to the template. Without this, the fields will not get populated with the values from the
has_one though saving will work.