Aurora.Uix.Parser behaviour (Aurora UIX v0.1.4-rc.6)

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Core parsing interface for resource configuration in Aurora.Uix.

Defines the behaviour contract and orchestration logic for converting resource definitions (Ecto schemas or Ash resources) into structured configuration maps that enable dynamic UI generation. Combines schema metadata extraction with context-based CRUD function discovery.

Key Features

  • Schema metadata extraction (names, titles, sources, primary keys)
  • Automatic CRUD function discovery for Context and Ash integrations
  • Flexible parser composition through behaviour-based architecture
  • Support for multiple backend types (:ctx for Context, :ash for Ash Framework)
  • Option resolution through cascading parser modules

Parser Architecture

The parsing process delegates to specialized parser modules:

  1. Common Parser (Aurora.Uix.Parsers.Common) - Extracts schema-derived properties like module names, sources, titles, and primary keys from Ecto schemas.

  2. Context Parser Defaults (Aurora.Uix.Integration.ContextParserDefaults) - Dispatches to backend-specific implementations for CRUD function discovery:

Behaviour Callbacks

Parser implementations must provide:

  • get_options/0 - Returns list of option keys the parser supports
  • option_value/4 - Resolves default values for configuration options

Key Constraints

  • Requires valid resource configuration with :schema key
  • Context-based parsers require :type, :context keys in resource configuration
  • Parser resolution happens at compile-time through application configuration
  • Options are merged with resource defaults before processing

Summary

Callbacks

get_options()

Returns the list of supported configuration option keys for the parser.

option_value(parsed_opts, resource_config, opts, key)

Resolves the default value for a configuration key.

Functions

parse(resource_config, opts \\ [])

Parses resource configuration into a structured map for UI rendering.

Callbacks

get_options()

@callback get_options() :: [atom()]

Returns the list of supported configuration option keys for the parser.

Parser implementations use this to declare which configuration options they can resolve. The keys are used by parse/2 to iterate and resolve values through option_value/4.

Returns

list(atom()) - List of configuration option keys supported by the parser.

Examples

iex> Aurora.Uix.Parsers.Common.get_options()
[:module, :module_name, :name, :source, :source_key, :title, :primary_key]

option_value(parsed_opts, resource_config, opts, key)

@callback option_value(
  parsed_opts :: map(),
  resource_config :: map(),
  opts :: keyword(),
  key :: atom()
) :: term()

Resolves the default value for a configuration key.

Called by the parsing process to determine the value for each option key. Implementations can inspect parsed options, resource configuration, and raw options to compute values.

Parameters

  • parsed_opts (map()) - Accumulator of previously parsed options. Useful for deriving values based on other resolved options.
  • resource_config (map()) - Resource configuration containing :schema, :type, :context, and other metadata.
  • opts (keyword()) - Raw un-parsed keyword options passed to parse/2.
  • key (atom()) - Configuration key to resolve (e.g., :module, :list_function).

Returns

term() - The resolved value for the given key. Type depends on the key being resolved.

Functions

parse(resource_config, opts \\ [])

@spec parse(
  map(),
  keyword()
) :: map()

Parses resource configuration into a structured map for UI rendering.

Orchestrates the parsing process by delegating to Common and ContextParserDefaults parsers, combining schema metadata extraction with CRUD function discovery.

Parameters

  • resource_config (map()) - Resource configuration containing:
    • :schema (module()) - Ecto schema or Ash resource module
    • :type (atom()) - Backend type (:ctx or :ash)
    • :context (module()) - Context
    • :opts (keyword()) - Default options
  • opts (keyword()) - Additional configuration options merged with resource defaults. Options are delegated to parser modules:

Returns

map() - Parsed configuration containing schema metadata, CRUD function references, and UI template settings.

Examples

iex> Aurora.Uix.Parser.parse(%{schema: Aurora.Uix.Guides.Accounts.User, type: :ctx, context: Aurora.Uix.Guides.Accounts, name: :user, opts: []}, [])
%{
  module: "user",
  name: "User",
  title: "Users",
  source: "users",
  module_name: "User",
  list_function: %Aurora.Uix.Integration.Connector{
    type: :ctx,
    crud_spec: %Aurora.Uix.Integration.Ctx.CrudSpec{
      function_spec: &Aurora.Uix.Guides.Accounts.list_users/1,
      auix_action_name: :list_function
    }
  },
  list_function_paginated: %Aurora.Uix.Integration.Connector{
    type: :ctx,
    crud_spec: %Aurora.Uix.Integration.Ctx.CrudSpec{
      function_spec: &Aurora.Uix.Guides.Accounts.list_users_paginated/1,
      auix_action_name: :list_function_paginated
    }
  },
  get_function: %Aurora.Uix.Integration.Connector{
    type: :ctx,
    crud_spec: %Aurora.Uix.Integration.Ctx.CrudSpec{
      function_spec: &Aurora.Uix.Guides.Accounts.get_user/2,
      auix_action_name: :get_function
    }
  },
  delete_function: %Aurora.Uix.Integration.Connector{
    type: :ctx,
    crud_spec: %Aurora.Uix.Integration.Ctx.CrudSpec{
      function_spec: &Aurora.Uix.Guides.Accounts.delete_user/1,
      auix_action_name: :delete_function
    }
  },
  create_function: %Aurora.Uix.Integration.Connector{
    type: :ctx,
    crud_spec: %Aurora.Uix.Integration.Ctx.CrudSpec{
      function_spec: &Aurora.Uix.Guides.Accounts.create_user/1,
      auix_action_name: :create_function
    }
  },
  update_function: %Aurora.Uix.Integration.Connector{
    type: :ctx,
    crud_spec: %Aurora.Uix.Integration.Ctx.CrudSpec{
      function_spec: &Aurora.Uix.Guides.Accounts.update_user/2,
      auix_action_name: :update_function
    }
  },
  change_function: %Aurora.Uix.Integration.Connector{
    type: :ctx,
    crud_spec: %Aurora.Uix.Integration.Ctx.CrudSpec{
      function_spec: &Aurora.Uix.Guides.Accounts.change_user/2,
      auix_action_name: :change_function
    }
  },
  new_function: %Aurora.Uix.Integration.Connector{
    type: :ctx,
    crud_spec: %Aurora.Uix.Integration.Ctx.CrudSpec{
      function_spec: &Aurora.Uix.Guides.Accounts.new_user/2,
      auix_action_name: :new_function
    }
  },
  primary_key: [:id],
  source_key: :users
}