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class NodesController < ApplicationController
def index
@rootnodes = Node.where(parent: nil)
end
def show
@node = Node.find(params[:id])
@nodes = Node.all
end
def new
@node = Node.new
@nodes = Node.all
end
def edit
@node = Node.find(params[:id])
@nodes = Node.all
end
def create
unless params[:node][:parent] == ""
@parent = Node.find(params[:node][:parent])
@node = @parent.children.build(title: params[:node][:title], content: params[:node][:content], parent: @parent)
else
params[:node][:parent] = nil
@node = Node.new(params.require(:node).permit(:parent,:title,:content))
end
@node.save
redirect_to @node
end
def update
@node = Node.find(params[:id])
unless params[:node][:parent] == "" #if user doesnt want to not have parent
unless params[:id] == params[:node][:parent] # if the user didnt select a child to be its own parent(error handling)
@parent = Node.find(params[:node][:parent])
if @node.update(title: params[:node][:title], content: params[:node][:content], parent: @parent)
@parent.children << @node # assign new parent
redirect_to @node
else
@nodes = Node.all #makes dropdown work in render
render 'edit'
end
else
@nodes = Node.all #makes dropdown work in render
render 'edit'
end
else # save node without parent
if @node.update(title: params[:node][:title], content: params[:node][:content], parent: nil)
redirect_to @node
else
@nodes = Node.all # makes dropdown work in render
render 'edit'
end
end
end
private
def node_params
end
end
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