Zoran Majstorovic zmajstor

Ruby, Rails, React, and Node.js

zmajstor / gem update fix

Created August 25, 2012 10:37

ERROR: Failed to build gem native extension.

	download & install command line tools for xcode
	ln -s gcc gcc-4.2

	http://stackoverflow.com/questions/6119153/why-do-i-get-a-bcrypt-ruby-gem-install-error

zmajstor / device_group.rb

Last active December 22, 2015 23:39

Rails 3 sample for grouping Devices into DeviceGroups (form_for ActiveRecord has_many :through Association)

	class Device < ActiveRecord::Base
	has_many :device_groupings, :dependent => :destroy
	has_many :device_groups, :through => :device_groupings
	end

	class DeviceGroup < ActiveRecord::Base
	has_many :device_groupings, :dependent => :destroy
	has_many :devices, :through => :device_groupings

	attr_accessible :name, :device_ids # ...

zmajstor / device_groups_controller.rb

Created September 13, 2013 09:02

Rails 4 sample for grouping Devices into DeviceGroups (form_for ActiveRecord has_many :through Association)

	class DeviceGroupsController < ApplicationController

	# ...
	private

	def device_group_params
	params.require(:device_group).permit(:title, {:group_ids => []} )
	end

	# ...

zmajstor / _form.html.haml

Last active December 23, 2015 05:38

Rails nested form (Add/Remove nested resource without Controller for nested resource) inspired by http://davidlesches.com/blog/rails-nested-forms-using-jquery-and-simpleform and http://api.rubyonrails.org/classes/ActiveRecord/NestedAttributes/ClassMethods.html * to destroy the associated model: add the _destroy key to the attributes hash, with a…

	= simple_form_for @portfolio do \|f\|
	= f.input :title, label: 'Portfolio Title'

	= f.simple_fields_for :assets do \|assets_form\|
	.duplicatable_nested_form
	= assets_form.association :stock
	= assets_form.input :amount, :input_html => { min: 0 }

	= link_to 'Remove', '', :class => 'destroy_duplicate_nested_form'
	= assets_form.input :id, as: :hidden

zmajstor / application.html.erb

Created November 2, 2013 13:38

conditional include of css, js based on controller (previously disable require_tree . in application.css/js)

	<% if current_page?(controller: 'foo_bar') %>
	<%= stylesheet_link_tag "foo", media: "all" %>
	<%= javascript_include_tag "bar" %>
	<% end %>

zmajstor / ldap_test.rb

Last active April 16, 2021 08:25

LDAP test

	# ---- edit data below ------------
	LDAP_HOST = 'promdmnet.cloudapp.net'
	LDAP_PORT = 636 # 636 or 389
	LDAP_BASE = "dc=promdm, dc=net"
	LDAP_BIND_USER = "[email protected]" # format is username@domain
	LDAP_BIND_PASS = "ldapbindpassword"
	samaccountname = "zm"
	password = "userpassword"
	# ----- edit end ------------------

zmajstor / MyModel.rb

Created January 6, 2014 14:58

Rails (ActiveRecord) after_save callback for single field change

	class MyModel < ActiveRecord::Base

	after_save :do_something, if: :my_filed_changed?


	def do_something
	# my_filed has been changed ... do something
	end
	end

zmajstor / dry_scope.rb

Created February 10, 2014 11:20

AR DRY scoping of the nested models

	class Collection < ActiveRecord::Base
	has_many :products
	scope :live, where("collections.end_date IS NOT NULL AND collections.end_date >= ?", Time.now.to_date)
	end

	class Product < ActiveRecord::Base
	belongs_to :collection

	# how to DRY this .where ?
	scope :launched, joins(:collection).where("collections.end_date IS NOT NULL AND collections.end_date >= ?", Time.now.to_date)

zmajstor / _collection.html.erb

Last active August 29, 2015 13:56

how to wait for jQuery .append to finsh

	<div class="card">
	<%= image_tag (collection.designer.cover_image_url), class: "center-block" %>
	<div class="card-hover">
	<span class="card-overlay">
	<%= collection.designer.fullname %><br>
	<%= collection.designer.live_collection.name %><br>
	<%= collection.designer.location %>
	</span>
	</div>
	</div>

zmajstor / aviary_uploader.rb

Last active August 29, 2015 13:57

CarrierWave upload with Aviary and FileReader

	# encoding: utf-8

	class AviaryUploader < CarrierWave::Uploader::Base

	# Include RMagick or MiniMagick support:
	# include CarrierWave::RMagick
	# include CarrierWave::MiniMagick

	# Choose what kind of storage to use for this uploader:
	# storage :file