View Source Backpex.Fields.InlineCRUD (Backpex v0.6.0)

A field to handle inline CRUD operations. It can be used with either an embeds_many or has_many (association) type column.

Options

• :type - The type of the field. Either :embed or :assoc.
• :child_fields - A list of input fields to be used. Currently only support Backpex.Fields.Text fields.

You can add additional classes to child field inputs by setting the class option in the list of child_fields. The class can be a string or a function that takes the assigns and must return a string. In addition, you can optionally specify the input type of child field inputs with the input_type option. We currently support :text and :textarea. The input_type defaults to :text.

Important

Everything is currently handled by plain text input.

EmbedsMany

The field in the migration must be of type :map. You also need to use ecto's cast_embed/2 in the changeset.

Example

def changeset(your_schema, attrs) do
  your_schema
  ...
  |> cast_embed(:your_field,
    with: &your_field_changeset/2,
    sort_param: :your_field_order,
    drop_param: :your_field_delete
  )
  ...
end

Important

We use the Ecto :sort_param and :drop_param to keep track of order and dropped items. Therefore, you need to use these options as well in your changeset. The name has to be <field_name>_order and <field_name>_delete.

HasMany (Association)

A HasMany relation does not require any special configuration. You can simply define a basic Ecto.Schema.has_many/3 relation to be used with the Backpex.Fields.InlineCRUD field.

Important

You need to set on_replace: :delete to be able to delete items, and on_delete: :delete_all to be able to delete a resource with existing items. It is recommended that you also add on_delete: :delete_all to your migration.

Example

@impl Backpex.LiveResource
def fields do
  [
    embeds_many: %{
      module: Backpex.Fields.InlineCRUD,
      label: "EmbedsMany",
      type: :embed,
      except: [:index],
      child_fields: [
        field1: %{
          module: Backpex.Fields.Text,
          label: "Label1"
        },
        field2: %{
          module: Backpex.Fields.Text,
          label: "Label2"
        }
      ]
    }
  ]
end