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ash_phoenix
0.6.0-rc.2
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0.1.0
Utilities for integrating Ash and Phoenix
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lib/ash_phoenix/form_data/helpers.ex
defmodule AshPhoenix.FormData.Helpers do
@moduledoc false
def get_argument(nil, _), do: nil
def get_argument(action, field) when is_atom(field) do
Enum.find(action.arguments, &(&1.name == field))
end
def get_argument(action, field) when is_binary(field) do
Enum.find(action.arguments, &(to_string(&1.name) == field))
end
def type_to_form_type(type) do
case Ash.Type.ecto_type(type) do
:integer -> :number_input
:boolean -> :checkbox
:date -> :date_select
:time -> :time_select
:utc_datetime -> :datetime_select
:naive_datetime -> :datetime_select
_ -> :text_input
end
end
def form_for_errors(query, _opts) do
AshPhoenix.errors_for(query)
end
def form_for_name(resource) do
resource
|> Module.split()
|> List.last()
|> Macro.underscore()
end
defp match_path_filter?(path, path_filter, form_keys \\ []) do
path == path_filter ||
(!Enum.empty?(form_keys) &&
!form_would_capture?(form_keys, path, path_filter))
end
defp form_would_capture?(form_keys, path, path_filter) do
Enum.any?(form_keys, fn {key, config} ->
key = config[:for] || key
if config[:type] == :list do
List.starts_with?(path, path_filter ++ [key]) &&
is_integer(path |> Enum.drop(Enum.count(path_filter) + 1) |> Enum.at(0))
else
List.starts_with?(path, path_filter ++ [key])
end
end)
end
def transform_errors(form, errors, path_filter \\ nil, form_keys \\ []) do
additional_path_filters =
form_keys
|> Enum.filter(fn {_key, config} -> config[:type] == :list end)
|> Enum.map(fn {key, _config} ->
[key]
end)
errors
|> Enum.filter(fn error ->
if Map.has_key?(error, :path) && path_filter do
match_path_filter?(error.path, path_filter, form_keys) ||
Enum.any?(additional_path_filters, &match_path_filter?(error.path, &1))
else
false
end
end)
|> Enum.map(fn error ->
if error.path in additional_path_filters do
error =
if Map.has_key?(error, :field) do
%{error | field: List.last(Enum.at(additional_path_filters, 0))}
else
error
end
if Map.has_key?(error, :fields) do
%{error | fields: [List.last(Enum.at(additional_path_filters, 0))]}
else
error
end
else
error
end
end)
|> Enum.flat_map(&transform_error(form, &1))
|> Enum.filter(fn
error when is_exception(error) ->
AshPhoenix.FormData.Error.impl_for(error)
{_key, _value, _vars} ->
true
_ ->
false
end)
|> Enum.map(fn {field, message, vars} ->
vars =
vars
|> List.wrap()
|> Enum.flat_map(fn {key, value} ->
try do
if is_integer(value) do
[{key, value}]
else
[{key, to_string(value)}]
end
rescue
_ ->
[]
end
end)
{field, {message || "", vars}}
end)
end
def transform_error(form, error) do
case form.transform_errors do
transformer when is_function(transformer, 2) ->
case transformer.(form.source, error) do
error when is_exception(error) ->
if AshPhoenix.FormData.Error.impl_for(error) do
List.wrap(to_form_error(error))
else
[]
end
{key, value, vars} ->
[{key, value, vars}]
list when is_list(list) ->
Enum.flat_map(list, fn
error when is_exception(error) ->
if AshPhoenix.FormData.Error.impl_for(error) do
List.wrap(to_form_error(error))
else
[]
end
{key, value, vars} ->
[{key, value, vars}]
end)
end
nil ->
case error do
{_key, _value, _vars} = error ->
[error]
error ->
if AshPhoenix.FormData.Error.impl_for(error) do
List.wrap(to_form_error(error))
else
[]
end
end
end
end
def transform_predicate_error(predicate, error, transform_errors) do
case transform_errors do
transformer when is_function(transformer, 2) ->
case transformer.(predicate, error) do
error when is_exception(error) ->
if AshPhoenix.FormData.Error.impl_for(error) do
List.wrap(to_form_error(error))
else
[]
end
{key, value, vars} ->
[{key, value, vars}]
list when is_list(list) ->
Enum.flat_map(list, fn
error when is_exception(error) ->
if AshPhoenix.FormData.Error.impl_for(error) do
List.wrap(to_form_error(error))
else
[]
end
{key, value, vars} ->
[{key, value, vars}]
end)
end
nil ->
case error do
{_key, _value, _vars} = error ->
[error]
error ->
if AshPhoenix.FormData.Error.impl_for(error) do
List.wrap(to_form_error(error))
else
[]
end
end
end
end
defp to_form_error(exception) when is_exception(exception) do
case AshPhoenix.FormData.Error.to_form_error(exception) do
nil ->
nil
{field, message} ->
{field, message, []}
{field, message, vars} ->
{field, message, vars}
list when is_list(list) ->
Enum.map(list, fn item ->
case item do
{field, message} ->
{field, message, []}
{field, message, vars} ->
{field, message, vars}
end
end)
end
end
end