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Form library for Phoenix with Ecto support
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lib/templates/bootstrap.ex
defmodule Formex.Template.Bootstrap do
use Formex.Template, :helper
@moduledoc false
defmacro __using__([]) do
quote do
use Formex.Template, :helper
import Formex.Template.Bootstrap
@spec generate_input(form :: Form.t, field :: Field.t) :: Phoenix.HTML.safe
def generate_input(form, field = %Field{}) do
type = field.type
data = field.data
phoenix_opts = field.phoenix_opts
args = [form.phoenix_form, field.name]
args = args ++ cond do
Enum.member?([:select, :multiple_select], type) ->
[data[:choices]]
true ->
[]
end
args = args ++ cond do
Enum.member?([:checkbox, :file_input], type) ->
[phoenix_opts]
true ->
[add_class(phoenix_opts, "form-control")]
end
input = render_phoenix_input(field, args)
cond do
Enum.member?([:checkbox], type) ->
content_tag(:div, [
content_tag(:label, [
input
])
], class: "checkbox")
true ->
input
end
end
@spec generate_input(_form :: Form.t, button :: Button.t) :: Phoenix.HTML.safe
def generate_input(_form, button = %Button{}) do
class = if String.match?(button.phoenix_opts[:class], ~r/btn\-/) do
"btn"
else
"btn btn-default"
end
phoenix_opts = add_class(button.phoenix_opts, class)
render_phoenix_input(button, [button.label, phoenix_opts])
end
@spec generate_label(form :: Form.t, field :: Field.t, class :: String.t) :: Phoenix.HTML.safe
def generate_label(form, field, class \\ "") do
Phoenix.HTML.Form.label(
form.phoenix_form,
field.name,
field.label,
class: "control-label "<>class
)
end
end
end
def attach_addon(field_html, field) do
if field.opts[:addon] do
addon = content_tag(:div, field.opts[:addon], class: "input-group-addon")
content_tag(:div, [field_html, addon], class: "input-group" )
else
field_html
end
end
def attach_error(tags, form, field) do
if has_error(form, field) do
error_html = get_errors(form, field)
|> Enum.map(&(content_tag(:p, &1)))
error_field = content_tag(:span, error_html, class: "help-block")
tags ++ [error_field]
else
tags
end
end
def attach_error_class(wrapper_class, form, field) do
if has_error(form, field) do
wrapper_class ++ ["has-error"]
else
wrapper_class
end
end
def attach_required_class(wrapper_class, field) do
if field.required do
wrapper_class ++ ["required"]
else
wrapper_class
end
end
end