AshPhoenix Form use for `many_to_many` relationships through `append_and_remove` management
Hi all, and thanks for this amazing project!
Today I'm trying to figure out how to use AshPhoenix.Form with field of type
For example, I have this resources with the desired result of allowing the user to select a list of tags from a multiple select:
defmodule Post do
use Ash.Resource, data_layer: AshPostgres.DataLayer
postgres do
table "posts"
repo Repo
end
attributes do
uuid_primary_key(:id)
attribute(:title, :string)
attribute(:content, :string)
end
relationships do
many_to_many :tags, Tag do
through PostTag
source_attribute_on_join_resource :post_id
destination_attribute_on_join_resource :tag_id
end
end
actions do
update :set_tags do
argument :tags, {:array, :uuid}
change manage_relationship(:tags, type: :append_and_remove)
end
end
defmodule Tag do
use Ash.Resource, data_layer: AshPostgres.DataLayer
postgres do
table "tags"
repo Repo
end
attributes do
uuid_primary_key(:id)
attribute(:name, :string)
end
relationships do
many_to_many :posts, Post do
through PostTag
source_attribute_on_join_resource :tag_id
destination_attribute_on_join_resource :post_id
end
end
end
defmodule PostTag do
use Ash.Resource, data_layer: AshPostgres.DataLayer
postgres do
table "post_tags"
repo Repo
end
attributes do
uuid_primary_key(:id)
end
relationships do
belongs_to :post, Post, allow_nil?: false
belongs_to :tag, Tag, allow_nil?: false, attribute_writable?: true
end
end
With this in place, how can I use AshPhoenix.Form auto-form and/or inputs_for for generating the
Today I'm trying to figure out how to use AshPhoenix.Form with field of type
{:array, :uuid}many_to_manyappend_and_removeFor example, I have this resources with the desired result of allowing the user to select a list of tags from a multiple select:
defmodule Post do
use Ash.Resource, data_layer: AshPostgres.DataLayer
postgres do
table "posts"
repo Repo
end
attributes do
uuid_primary_key(:id)
attribute(:title, :string)
attribute(:content, :string)
end
relationships do
many_to_many :tags, Tag do
through PostTag
source_attribute_on_join_resource :post_id
destination_attribute_on_join_resource :tag_id
end
end
actions do
update :set_tags do
argument :tags, {:array, :uuid}
change manage_relationship(:tags, type: :append_and_remove)
end
end
defmodule Tag do
use Ash.Resource, data_layer: AshPostgres.DataLayer
postgres do
table "tags"
repo Repo
end
attributes do
uuid_primary_key(:id)
attribute(:name, :string)
end
relationships do
many_to_many :posts, Post do
through PostTag
source_attribute_on_join_resource :tag_id
destination_attribute_on_join_resource :post_id
end
end
end
defmodule PostTag do
use Ash.Resource, data_layer: AshPostgres.DataLayer
postgres do
table "post_tags"
repo Repo
end
attributes do
uuid_primary_key(:id)
end
relationships do
belongs_to :post, Post, allow_nil?: false
belongs_to :tag, Tag, allow_nil?: false, attribute_writable?: true
end
end
With this in place, how can I use AshPhoenix.Form auto-form and/or inputs_for for generating the
post[tags][]
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