ash_graphql/lib/resource/query.ex
Riccardo Binetti 66d2f44443
feat: add Relay ID translation in mutation and queries (#109)
Adds a new option for queries and mutations that defines which arguments or
attributes will use a global Relay ID and their type. This allows automatically
decoding them before hitting their action.

This paves the way to automatic translation derived from the arguments, which
will be implemented subsequently.

---------

Co-authored-by: Zach Daniel <zachary.s.daniel@gmail.com>
2024-02-06 09:46:09 -05:00

110 lines
3.6 KiB
Elixir

defmodule AshGraphql.Resource.Query do
@moduledoc "Represents a configured query on a resource"
defstruct [
:name,
:action,
:type,
:identity,
:allow_nil?,
:modify_resolution,
:relay_id_translations,
as_mutation?: false,
metadata_names: [],
metadata_types: [],
show_metadata: nil,
type_name: nil,
relay?: false
]
@query_schema [
name: [
type: :atom,
doc: "The name to use for the query.",
default: :get
],
action: [
type: :atom,
doc: "The action to use for the query.",
required: true
],
type_name: [
type: :atom,
doc: """
Override the type name returned by this query. Must be set if the read action has `metadata` that is not hidden via the `show_metadata` key.
"""
],
metadata_names: [
type: :keyword_list,
default: [],
doc: "Name overrides for metadata fields on the read action."
],
metadata_types: [
type: :keyword_list,
default: [],
doc: "Type overrides for metadata fields on the read action."
],
show_metadata: [
type: {:list, :atom},
doc: "The metadata attributes to show. Defaults to all."
],
as_mutation?: [
type: :boolean,
default: false,
doc: """
Places the query in the `mutations` key instead. Not typically necessary, but is often paired with `as_mutation?`. See the [the guide](/documentation/topics/modifying-the-resolution.html) for more.
"""
],
relay_id_translations: [
type: :keyword_list,
doc: """
A keyword list indicating arguments or attributes that have to be translated from global Relay IDs to internal IDs. See the [Relay guide](/documentation/topics/relay.md#translating-relay-global-ids-passed-as-arguments) for more.
""",
default: []
]
]
@get_schema [
identity: [
type: :atom,
doc:
"The identity to use for looking up the record. Pass `false` to not use an identity.",
required: false
],
allow_nil?: [
type: :boolean,
default: true,
doc: "Whether or not the action can return nil."
],
modify_resolution: [
type: :mfa,
doc: """
An MFA that will be called with the resolution, the query, and the result of the action as the first three arguments. See the [the guide](/documentation/topics/modifying-the-resolution.html) for more.
"""
]
]
|> Spark.OptionsHelpers.merge_schemas(@query_schema, "Shared Query Options")
@read_one_schema [
allow_nil?: [
type: :boolean,
default: true,
doc: "Whether or not the action can return nil."
]
]
|> Spark.OptionsHelpers.merge_schemas(@query_schema, "Shared Query Options")
@list_schema [
relay?: [
type: :boolean,
default: false,
doc: """
If true, the graphql queries/resolvers for this resource will be built to honor the relay specification. See [the relay guide](/documentation/topics/relay.html) for more.
"""
]
]
|> Spark.OptionsHelpers.merge_schemas(@query_schema, "Shared Query Options")
def get_schema, do: @get_schema
def read_one_schema, do: @read_one_schema
def list_schema, do: @list_schema
end