I have the following method:
class Topic
def create_or_rename_folder
unless self.destroyed?
bucket = CreateTopicFolder.new(bucket_name)
bucket.create_or_rename_folder(permalink.split("/").last)
end
end
...
which is called like: after_save :create_or_rename_folder, :if => :production_env?
I would like to test that upon creating a new Topic a new CreateTopicFolder instance gets created, and also that if a Topic is being destroyed, a new instance of CreateTopicFolder is not being created.
That class looks something like:
class CreateTopicFolder
def initialize(bucket_name)
s3 = AutoVideoAssociate
s3.connect
#bucket = s3.find_bucket(bucket_name)
end
...
What is the right way to go about testing this?
Thanks!
context "When creating a Topic" do
it "creates a CreateTopicFolder" do
create_topic_folder = mock(CreateTopicFolder)
CreateTopicFolder.stub(:new) { create_topic_folder }
create_topic_folder.
should_receive(:create_or_rename_folder).
with("Sample Bucket Name")
topic = Topic.new
topic.bucket_name = "Sample Bucket Name"
topic.save!
end
end
context "When destroying a Topic" do
it "does not create a CreateTopicFolder" do
CreateTopicFolder.should_not_receive(:new)
topic = mock_model(Topic)
topic.destroy
end
end
Related
I have a helper_method that allows links to escape from a subdomain. However it is impacting my videos_controller, as it essentially seems to negate the 'current_event' method when not in the events controlller.
I've tried several dozen different ways over the last 4 days to make it so I can still escape my links from the subdomain, but still allow the videos_controller to work.
I think the best way to achieve this is to exclude the videos_controller from the helper method, but I'm not sure how (or if it is actually the best way forward - I'm obviously a noob!) Any suggestions please?! Relevant code below:
module UrlHelper
def url_for(options = nil)
if request.subdomain.present? and request.subdomain.downcase != 'www' and !options.nil? and options.is_a?(Hash) and options.has_key? :only_path and options[:only_path]
options[:only_path] = false
end
super
end
end
Videos_controller
def new
if current_event?
#video = current_event.videos.new
else
#video = Video.new
end
end
def create
if current_event.present?
#video = current_event.videos.new(params[:video])
#video.user_id = current_user.id
key = get_key_from_the_cloud
#video.key = key
else
#video = current_user.videos.new(params[:video])
#video.user_id = current_user.id
key = get_key_from_the_cloud
#video.key = key
end
if #video.save
flash[:success] = "Video uploaded!"
redirect_to root_url(subdomain: => current_event.name)
else
flash[:error] = "#{#video.errors.messages}"
render :new
end
end
current_event method
def current_event
if request.subdomain.present?
#event = Event.find_by_name(request.subdomain)
end
end
Did you take a look at this post yet?
You might want to create a new function test that only does something like
module UrlHelper
def test
puts "Test is called"
end
end
If that works you know its not including that fails but it has to be the method.
Otherwise you know the module is not included and you can narrow down the search.
I'm trying to step through a list of records that are retrieved with find_each.
I patterned my controller code on the answer in this stack overflow post, but I'm still getting a "No Block Given (Yield)" error.
I'm just getting started in Ruby and Rails and I haven't yet found a full fledged explanation (lots of basic examples though) of blocks and yield that gives me what I need.
My code looks like this:
def select_save
#class = params[:class]
#student_id = params[:id]
#class.each do |id|
old_subject = Subject.find(id)
new_subject = old_subject.dup
new_subject.student_id = #student_id
new_subject.save
Assignment.find_each.where(:subject_id => id) do |assignments|
assignments.each do |a|
new_assignment = a.dup
new_assignment.subject_id = new_subject.id
new_assignment.save
end
end
end
respond_to do |format|
format.html { redirect_to #student, :notice => 'Subject and assignments created.' }
end
end
and the error points to the line with find_each.
I know I need a block to yield to, but how exactly that would look in this particular case escapes me.
Thanks for any suggestions.
You're passing a block to where and no block to find_each. You can't do that. You need to reverse find_each and where on this line, the order is important as the block is passed to the last method invoked:
Assignment.find_each.where(:subject_id => id) do |assignments|
It should read:
Assignment.where(:subject_id => id).find_each do |assignments|
Your next problem is you're trying to iterate over assignments, which is a single Assignment. find_each is already doing the iteration for you, passing one assignment into the block at a time. The block should read:
Assignment.where(:subject_id => id).find_each do |assignment|
new_assignment = assignment.dup
new_assignment.subject_id = new_subject.id
new_assignment.save
end
I'm going to make the assumption that your Subject has many Assignments, since you have a subject_id inside your Assignment class. If this is the case, the final and most correct way to write your loop would be:
old_subject.assignments.each do |assignment|
new_assignment = assignment.dup
new_assignment.subject_id = new_subject.id
new_assignment.save
end
what am I doing wrong here?
I have a model for an app I am writing called page. Those attributes are:
title
pagetype
page_url
title and pagetype can be set as normally, but I used a custom getter/setter for the page_url. Here is the logic/model:
class Page < ActiveRecord::Base
def page_url=()
temp = self[:title]
pageUrl = temp.gsub(" ", "_").downcase
if self[:pagetype] == "home"
pageUrl = "/"
end
self[:page_url] = pageUrl
end
def page_url
self[:page_url]
end
end
It's fairly simple -> page_url is based on the title with all spaces replaced with unless page_type == "home", which then gets set to "/". For the record I don't want to make page_url virtual because I need it to be searchable and saved in the db.
So unfortunately whether in rails console or my app this is failing. Here is how I am calling the setter method in the console;
page1 = Page.new
page1.pagetype = "home"
page1.title = "this is a test"
page2 = Page.new
pager2.pagetype = "content"
page2.title = "this is another test"
#expected results should be
page1.page_url()
=> "/"
page2.page_url()
However I keep getting this:
page1.page_url()
=> nil
What the heck am I doing wrong here?
These custom setter and getters don't persist to the database. If you have a column page_url in your database, you can set the value with a callback. E.g. before_save:
class Page < ActiveRecord::Base
before_save :set_page_url
def set_page_url
if self[:pagetype] == "home"
self.page_url = "/"
else
self.page_url = self[:title].gsub(" ", "_").downcase
end
end
end
I want to track the last_login DateTime of my user, without changing the updated_at attribute.
So inside my Model attribut I put:
def login!(session)
session[:user_id] = id
User.record_timestamp = false
self.touch(:last_login_at)
User.record_timestamp = true
end
also tried, which is the same:
def login!(session)
session[:user_id] = id
self.last_login_at = Time.now
User.record_timestamps = false
self.save(:validate => false)
User.record_timestamps = true
end
But update_at column still is updated after each login.
It seems that User.record_timestamps = false doesn't have any effect when being called from the model directly. (I use to call this method from controller or rake tasks without any problem)
please don't tell me to use update_attribute :last_login_at, Time.now which in Rails 3.1 doesnt set the updated_at column: I'm using rails 3.0.9!
Any idea?
It's really more DRY for me to do this update from the model and not from any controller...
--------------------
[edit] Hummmmmm seems like a bug in rails: I have a nested Class SubUser < User.
When I replace User.record_timestamps = false by self.class.record_timestamps = false then it's working. It's quite strange because:
1) I'm calling #user.login! with a real class User (User.first.login!)
2) even if I were calling SubUser.first.login! the command User.record_timestamps should affect too SubUser class, right?
This is the way I did this before, please give a shot.
def login!(session)
session[:user_id] = id
class << self
def record_timestamps; false; end
end
self.last_login_at = Time.now
self.save(:validate => false)
class << self
remove_method :record_timestamps
end
end
Let me know if it helps you anyway.
I would try using update_attribute because it doesn't do validations so maybe it doesn't update the timestamps either. I'm not sure if it will work:
def login!(session)
update_attribute :last_login_at, Time.now
end
I've been working on a rails project where I am needed to serialize permissions for user roles and store in the database. As far as that goes I'm all good. Now my problem comes when I want to modify the serialized data from a rails generated form.
I acted on instinct and tried with the expected behavior.
That would be to use something like this:
f.check_box :permissions_customer_club_events_read
But as no getters or setters exist for the serialized data, this doesn't work (obviously :p). Now I wonder how I would go about tackling this problem and the only thing that comes to mind is dynamically generating getter and setter methods from my serialized hash.
Example:
def permissions_customer_club_events_read=(val)
permissions[:customer][:club][:events][:read] = val
end
def permissions_customer_club_events_read
permissions[:customer][:club][:events][:read]
end
Anyone understand what I'm getting at?
Here is my Model:
class User::Affiliation::Role < ActiveRecord::Base
require 'yajl'
class YajlCoder
def dump data
Yajl.dump data
end
def load data
return unless data
Yajl.load data
end
end
serialize :permissions, YajlCoder.new
after_initialize :init
def init
## Sets base permission structure ##
self.permissions ||= YAML.load_file("#{Rails.root}/config/permissions.yml")
end
end
I suggest you have a look at something like attr_bucket. Ostensibly, this can be used to solve some inheritance annoyances, but it will also solve your problem for you. Here is the essence.
It looks like you know what all your permissions are, but you want to serialize all of them into the same database field. But within your actual rails app, you want to treat all your permissions as if they were totally separate fields. This is exactly what a solution like attr_bucket will let you do. Let's take your example, you would do something like this:
class User::Affiliation::Role < ActiveRecord::Base
attr_bucket :permissions => [:permissions_customer_club_events_read, :permissions_customer_club_events_write, :permission_do_crazy_things]
after_initialize :init
def init
## Sets base permission structure ##
self.permissions ||= YAML.load_file("#{Rails.root}/config/permissions.yml")
end
end
Now you will be able to use permissions_customer_club_events_read, permissions_customer_club_events_write, permission_do_crazy_things as if they were separate database fields (this includes using them in forms etc.), but when you actually save your objects all those fields would get 'bucketed' together and serialized into the :permissions field.
The only caveat is the serialization mechanism, I believe attr_bucket will serialize everything using YAML, whereas you were using JSON. If this doesn't matter then you're golden, otherwise you might need to patch attr_bucket to use json instead of YAML which should be pretty straight forward.
Sorry if I did not understand the question ;)
You could have a customdata module, included in your model, and use method_missing:
module CustomData
def self.included(base)
base.instance_eval do
after_save :save_data
end
def method_missing(method, *args, &block)
if method.to_s =~ /^data_/
data[method] ? data[method] : nil
else
super
end
end
def data
#data ||= begin
#get and return your data
end
end
private
def save_data
end
end
With this method, you would have to use f.check_box :data_permissions_customer_club_events_read
It's not really complete, but I hope you get the idea ;)
attr_bucket seems like a good solution too.
This worked out for me in the end, this is how I solved it.
serialize :permissions, YajlCoder.new
after_initialize :init
def init
self.permissions ||= YAML.load_file("#{Rails.root}/config/permissions.yml")['customer']
build_attributes_from self.permissions, :permissions
end
private
def build_attributes_from store, prefix, path=[]
store.each do |k,v|
if v.class == Hash
build_attributes_from v, prefix, ( path + [k] )
else
create_attr_accessors_from prefix, ( path + [k] )
end
end
end
def create_attr_accessors_from prefix, path=[]
method_name = prefix.to_s + "_" + path.join('_')
class << self
self
end.send :define_method, method_name do
self.permissions.dig(:path => path)
end
class << self
self
end.send :define_method, "#{method_name}=" do |value|
self.permissions.dig(:path => path, :value => value)
end
end
And some monkey patching for hashes...
class Hash
def dig(args={})
path = args[:path].to_enum || []
value = args[:value] || nil
if value == nil
path.inject(self) do |location, key|
location.respond_to?(:keys) ? location[key] : nil
end
else
path.inject(self) do |location, key|
location[key] = ( location[key].class == Hash ) ? location[key] : value
end
end
end
end
Now getter and setter methods are generated for all of the serialized fields.