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elements_controller.rb
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elements_controller.rb
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# frozen_string_literal: true
module Alchemy
module Admin
class ElementsController < Alchemy::Admin::BaseController
before_action :load_element, only: [:update, :destroy, :fold, :publish]
authorize_resource class: Alchemy::Element
def index
@page_version = PageVersion.find(params[:page_version_id])
@page = @page_version.page
elements = @page_version.elements.order(:position).includes(*element_includes)
@elements = elements.not_nested.unfixed
@fixed_elements = elements.not_nested.fixed
end
def new
@page_version = PageVersion.find(params[:page_version_id])
@page = @page_version.page
@parent_element = Element.find_by(id: params[:parent_element_id])
@elements = @page.available_elements_within_current_scope(@parent_element)
@element = @page_version.elements.build
@clipboard = get_clipboard("elements")
@clipboard_items = Element.all_from_clipboard_for_page(@clipboard, @page)
end
# Creates a element as discribed in config/alchemy/elements.yml on page via AJAX.
def create
@page_version = PageVersion.find(params[:element][:page_version_id])
@page = @page_version.page
Element.transaction do
if @paste_from_clipboard = params[:paste_from_clipboard].present?
@element = paste_element_from_clipboard
else
@element = Element.create(create_element_params)
end
if @page.definition["insert_elements_at"] == "top"
@insert_at_top = true
@element.move_to_top
end
end
if @element.valid?
render :create
else
@element.page_version = @page_version
@elements = @page.available_element_definitions
@clipboard = get_clipboard("elements")
@clipboard_items = Element.all_from_clipboard_for_page(@clipboard, @page)
render :new
end
end
# Updates the element.
#
# And update all contents in the elements by calling update_contents.
#
def update
if @element.update_contents(contents_params)
@page = @element.page
@element_validated = @element.update(element_params)
else
@element_validated = false
@notice = Alchemy.t("Validation failed")
@error_message = "<h2>#{@notice}</h2><p>#{Alchemy.t(:content_validations_headline)}</p>".html_safe
end
end
def destroy
@element.destroy
@notice = Alchemy.t("Successfully deleted element") % { element: @element.display_name }
end
def publish
@element.update(public: !@element.public?)
end
def order
@parent_element = Element.find_by(id: params[:parent_element_id])
Element.transaction do
params.fetch(:element_ids, []).each.with_index(1) do |element_id, position|
# We need to set the parent_element_id, because we might have dragged the
# element over from another nestable element
Element.find_by(id: element_id).update_columns(
parent_element_id: params[:parent_element_id],
position: position,
)
end
# Need to manually touch the parent because Rails does not do it
# with the update_columns above
@parent_element&.touch
end
end
def fold
@page = @element.page
@element.folded = !@element.folded
@element.save
end
private
def element_includes
[
{
contents: {
essence: :ingredient_association,
},
},
:tags,
{
all_nested_elements: [
{
contents: {
essence: :ingredient_association,
},
},
:tags,
],
},
]
end
def load_element
@element = Element.find(params[:id])
end
def element_from_clipboard
@element_from_clipboard ||= begin
@clipboard = get_clipboard("elements")
@clipboard.detect { |item| item["id"].to_i == params[:paste_from_clipboard].to_i }
end
end
def paste_element_from_clipboard
@source_element = Element.find(element_from_clipboard["id"])
element = Element.copy(@source_element, {
parent_element_id: create_element_params[:parent_element_id],
page_version_id: @page_version.id,
})
if element_from_clipboard["action"] == "cut"
@cut_element_id = @source_element.id
@clipboard.delete_if { |item| item["id"] == @source_element.id.to_s }
@source_element.destroy
end
element
end
def contents_params
params.fetch(:contents, {}).permit!
end
def element_params
if @element.taggable?
params.fetch(:element, {}).permit(:tag_list)
else
params.fetch(:element, {})
end
end
def create_element_params
params.require(:element).permit(:name, :page_version_id, :parent_element_id)
end
end
end
end