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Form library for Phoenix with Ecto support
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lib/field.ex
defmodule Formex.Field do
import Ecto.Query
alias __MODULE__
@doc """
Defines the Formex.Field struct.
* `:name` - a field name, for example: `:title`
* `:type` - type of field that in most cases will be name of function from `Phoenix.HTML.Form`
* `:value` - the value from struct/params
* `:required` - is field required?
* `:label` - the text label
* `:data` - additional data used by particular field type (eg. `:select_assoc` stores here data
for `<option>`'s)
* `:opts` - options
"""
defstruct name: nil,
# assoc: false,
type: nil,
value: nil,
required: true,
label: "",
data: [],
opts: []
@type t :: %Field{}
@repo Application.get_env(:formex, :repo)
def create_field(form, :select_assoc, name_id, opts) do
name = Regex.replace(~r/_id$/, Atom.to_string(name_id), "") |> String.to_atom
get_options = fn ->
module = form.model.__schema__(:association, name).queryable
query = from e in module,
select: {e.name, e.id},
order_by: e.name
@repo.all(query)
end
%Field{
name: name_id,
type: :select,
value: Map.get(form.struct, name),
label: get_label(name, opts),
required: Keyword.get(opts, :required, true),
data: [
options: get_options.()
],
opts: opts
}
end
def create_field(form, type, name, opts) do
%Field{
name: name,
type: type,
value: Map.get(form.struct, name),
label: get_label(name, opts),
required: Keyword.get(opts, :required, true),
opts: opts
}
end
#
defp get_label(name, opts) do
if opts[:label] do
opts[:label]
else
Atom.to_string name
end
end
end