I'm using the version of that gem https://github.com/crowdint/acts_as_shopping_cart for rails 3
I did everything with the conventions names. But I'm getting the error Can't mass-assign protected attributes: item
class ShoppingCartsController < ApplicationController
before_filter :extract_shopping_cart
def create
#product = Video.find(params[:product_id])
#shopping_cart.add(#product, #product.price) # the error is generated on that line
redirect_to shopping_cart_path
end
My model ShoppingCart:
# == Schema Information
#
# Table name: shopping_carts
#
# id :integer not null, primary key
# created_at :datetime not null
# updated_at :datetime not null
#
class ShoppingCart < ActiveRecord::Base
acts_as_shopping_cart
attr_accessible :price
#accepts_nested_attributes_for :price
end
My model ShoppingCartItem:
# == Schema Information
#
# Table name: shopping_cart_items
#
# id :integer not null, primary key
# owner_id :integer
# owner_type :string(255)
# quantity :integer
# item_id :integer
# item_type :string(255)
# price :float
# created_at :datetime not null
# updated_at :datetime not null
#
class ShoppingCartItem < ActiveRecord::Base
attr_accessible :owner_id, :owner_type, :quantity, :item_id, :item_type, :price
acts_as_shopping_cart_item
end
Can anyone help me what I am missing here?
hope u are aware that
Rails 3
As of Version 0.2.0 Rails 3 is no longer supported. Please use the 0-1-x branch if you still need to implement this gem in a Rails 3 app
gem 'acts_as_shopping_cart', :github => 'crowdint/acts_as_shopping_cart', :branch => '0-1-x'
Related
This question already has an answer here:
Closed 10 years ago.
Possible Duplicate:
undefined method `to_f' for #<ActiveRecord::Relation:0x472d0a0>
I'm trying to make a call tracking application to learn twilio and rails.
Right now, I would like to make a graph that shows a user how many phone calls a particular phone number gets per day.
The schema is user has_many phones has_many calls.
I try to make the graph by creating an instance method that counts the number of phones on a particular day, but when I try executing the code, I get the error :
SQLite3::SQLException: no such column: calls.placed_at: SELECT COUNT(*) FROM "calls" WHERE "calls"."phone_id" = 44 AND ("calls"."placed_at" BETWEEN '2012-09-15 00:00:00.000000' AND '2012-09-15 23:59:59.999999')
I don't quite understand the code I'm using for the instance method, and it's probably calling the wrong column. Your help on this would be greatly appreciated.
Here's the important part of my call model:
def total_on(date)
calls.where(placed_at: date.beginning_of_day..date.end_of_day).count
end
Here's how I'm counting the phone calls in my show view
<%= (1.month.ago.to_date..Date.today).map { |date| #phone.total_on(date).to_f}.inspect %>
Here's how I define the #phone variable
#phone = Phone.find_by_id(params[:id])
Here's my complete phone model (for schema reference)
# == Schema Information
#
# Table name: phones
#
# id :integer not null, primary key
# name :string(255)
# twilio_number :integer
# original_number :integer
# user_id :integer
# created_at :datetime not null
# updated_at :datetime not null
#
class Phone < ActiveRecord::Base
attr_accessible :original_number, :user_id, :name, :twilio_number
belongs_to :user
has_many :calls, dependent: :destroy
validates :name, presence: true
validates :twilio_number, presence: true
validates :original_number, presence: true
validates :user_id, presence: true
default_scope order: 'phones.created_at DESC'
validate :check_phone_limit, :on => :create
def check_phone_limit
if User.find(self.user_id).at_max_phone_limit?
self.errors[:base] << "Cannot add any more phones"
end
end
def original_number=(value)
num = value.to_s.gsub(/[^0-9+]/, "")
write_attribute(:original_number, num.to_i)
end
def total_on(date)
calls.where(placed_at: date.beginning_of_day..date.end_of_day).count
end
end
Here's my complete call model
# == Schema Information
#
# Table name: calls
#
# id :integer not null, primary key
# AccountSid :string(255)
# From :string(255)
# To :string(255)
# CallStatus :string(255)
# ApiVersion :string(255)
# Direction :string(255)
# FromCity :string(255)
# FromState :string(255)
# FromZip :string(255)
# FromCountry :string(255)
# ToCity :string(255)
# ToState :string(255)
# ToZip :string(255)
# ToCountry :string(255)
# CallSid :string(255)
# DialCallSid :string(255)
# DialCallDuration :string(255)
# DialCallStatus :string(255)
# RecordingUrl :string(255)
# phone_id :integer
# DialCallMinutes :integer
# created_at :datetime
# updated_at :datetime
#
class Call < ActiveRecord::Base
attr_accessible :AccountSid, :From, :To, :CallStatus, :ApiVersion, :Direction, :FromCity, :FromState, :FromZip, :FromCountry, :ToCity, :ToState, :ToZip, :ToCountry, :CallSid, :DialCallSid, :DialCallDuration, :DialCallStatus, :RecordingUrl, :DialCallMinutes
belongs_to :phone
def self.create_from_incoming_call(params)
user_phone = Phone.find_by_twilio_number(params['To']) #Finds the phone number in the database based on what phone Twilio is calling
twilio_request_params = {
:CallSid => params['CallSid'],
:AccountSid => params['AccountSid'],
:From => params['From'],
:To => params['To'],
:CallStatus => params['CallStatus'],
:ApiVersion => params['ApiVersion'],
:Direction => params['Direction'],
:FromCity => params['FromCity'],
:FromState => params['FromState'],
:FromZip => params['FromZip'],
:FromCountry => params['FromCountry'],
:ToCity => params['ToCity'],
:ToState => params['ToState'],
:ToZip => params['ToZip'],
:ToCountry => params['ToCountry']
:phone_id => user_phone.phone_id
}
call = Call.new(twilio_request_params)
call.save
return call
end
def Call.update_dial_call(params)
twilio_request_params = {
:DialCallSid => params['DialCallSid'],
:DialCallDuration => params['DialCallDuration'],
:DialCallStatus => params['DialCallStatus'],
:RecordingUrl => params['RecordingUrl'],
:DialCallMinutes => (params['DialCallDuration'].to_f/60.to_f).ceil
}
call = Call.where( :CallSid => params['CallSid'] ).first
call.update_attributes twilio_request_params
call.save
end
end
I've been stuck on this for a while; any help would be greatly appreciated!
Your call model uses the standard rails created_at, yet your query was using placed_at, which doesn't exist.
I've models GuestOrder, OrderBatch, OrderItem
# == Schema Information
#
# Table name: guest_orders
#
# id :integer not null, primary key
# notes :string(255)
# adults :integer
# children :integer
# created :datetime
# placed :datetime
# billed :datetime
# created_at :datetime
# updated_at :datetime
#
class GuestOrder < ActiveRecord::Base
has_many :order_batches, :dependent => :destroy
end
# == Schema Information
#
# Table name: order_batches
#
# id :integer not null, primary key
# placed :datetime
# guest_order_id :integer
# created_at :datetime
# updated_at :datetime
#
class OrderBatch < ActiveRecord::Base
belongs_to :guest_order
has_many :order_items, :dependent => :destroy
end
# == Schema Information
#
# Table name: order_items
#
# id :integer not null, primary key
# quantity :integer
# accepted :datetime
# cooking :datetime
# ready :datetime
# delivered :datetime
# cancelled :datetime
# order_batch_id :integer
# dish_id :integer
# created_at :datetime
# updated_at :datetime
#
class OrderItem < ActiveRecord::Base
belongs_to :order_batch
belongs_to :dish
end
I'm trying to render json in the following method to get a guest_order and its belonging order_batches and order_items by passing guest_order id as parameter.
def getOrderDetails
#To get the details of a particular guest_order and its batches and items
#guest_order = GuestOrder.find_by_id(params[:id])
render :json => #guest_order.to_json(:except => [:created_at, :updated_at],
:includes => {:order_batches => {:except => [:guest_order_id, :created_at, :updated_at],
:includes => {:order_items => {:except => [:order_batch_id, :created_at, :updated_at] } } } } )
end
But I didn't get the expected result, only the details from the guest_orders table is rendered. How to solve this?
I use :include rather than :includes, not sure if that's significant.
Try using the :include without the :except first, and when you get that working, add in the :except.
I have a Rails app that has "Datapoint" and "Dataset" model objects. Datasets belog to Datapoints.
models/dataset.rb:
# Table name: datasets
#
# id :integer not null, primary key
# name :string(255)
# created_at :datetime
# updated_at :datetime
class Dataset < ActiveRecord::Base
belongs_to :user
validates :name, :presence => true
end
models/datapoint.rb:
# Table name: datapoints
#
# id :integer not null, primary key
# dataset :integer
# date :date
# value :float
# created_at :datetime
# updated_at :datetime
class Datapoint < ActiveRecord::Base
belongs_to :dataset
validates :date, :presence => true
validates :dataset, :presence => true
validates :value, :presence => true
end
My controllers/datapoints_controller.rb successfully saves datapoints records:
class DatapointsController < ApplicationController
def create
#datapoint = Datapoint.new(params[:datapoint])
#datapoint.dataset = Dataset.find(current_user.dataset)
if #datapoint.save
redirect_to root_path
else
end
end
end
However, when I look in my database, the dataset field for each datapoint entry (which is a required foreign key) is empty. How is this possible?
Looks like a bad migration (wrong field name for foreign key):
# Table name: datapoints
# dataset :integer <<<< This should be dataset_id
# date :date
...
What I would like to do is when a user is created, it automatically gives them a role.
The thing is that the role is related to the user via an assignment table and a has_many through association.
The code is as follows:
User model
# == Schema Information
# Schema version: 20110214082231
#
# Table name: users
#
# id :integer not null, primary key
# email :string(255)
# encrypted_password :string(128)
# password_salt :string(255)
# reset_password_token :string(255)
# remember_token :string(255)
# remember_created_at :datetime
# sign_in_count :integer
# current_sign_in_at :datetime
# last_sign_in_at :datetime
# current_sign_in_ip :string(255)
# last_sign_in_ip :string(255)
# username :string(255)
# f_name :string(255)
# l_name :string(255)
# created_at :datetime
# updated_at :datetime
# invitation_token :string(60)
# invitation_sent_at :datetime
# plan_id :integer
# current_state :string(255)
# confirmation_token :string(255)
# confirmed_at :datetime
# confirmation_sent_at :datetime
#
class User < ActiveRecord::Base
before_create :assign
has_many :assignments
has_many :roles, :through => :assignments
def role_symbols
roles.map do |role|
role.name.underscore.to_sym
end
end
def assign
#assignment.build_role(:user_id => self.id, :role_id => '3')
end
end
Assignments model
# Table name: assignments
#
# id :integer not null, primary key
# user_id :integer
# role_id :integer
# created_at :datetime
# updated_at :datetime
#
class Assignment < ActiveRecord::Base
belongs_to :role
belongs_to :user
end
Role model
# == Schema Information
# Schema version: 20101117094659
#
# Table name: roles
#
# id :integer not null, primary key
# name :string(255)
# created_at :datetime
# updated_at :datetime
#
class Role < ActiveRecord::Base
has_many :assignments
has_many :users, :through => :assignments
end
Firstly, don't use hard-coded ids to find your roles as they may change.
Secondly, use association builders, or just access the roles association yourself.
Thirdly, follow the rule of "Don't Make Me Think" (DMMT) when naming your methods.
With these three things in mind:
def assign_default_role
self.roles << Role.find_by_name("User")
end
This is the error I get:
ContactPostalcardsController#skip (NoMethodError) "undefined method `status=' for #<ContactPostalcard:0x2b21433d64b0>"
This is the code calling it and trying to assign a value to the status attribute for ContactPostalcard (the Model):
def skip
#contact_postalcard = ContactPostalcard.new(params[:contact_postalcard])
#contact_postalcard.contact_id = params[:contact_id]
#contact_postalcard.postalcard_id = params[:postalcard_id]
#contact_postalcard.status = "skipped"
#contact_postalcard.date_sent = Date.today
#contact_postalcard.date_created = Date.today
if #contact_postalcard.save
render :text => 'This email was skipped!'
end
end
This is the Model referred. Note the "annotate" output shows status as an attribute:
class ContactPostalcard < ActiveRecord::Base
attr_accessible :title, :contact_id, :postal_id, :postalcard_id, :message, :campaign_id, :date_sent, :status
belongs_to :contact
belongs_to :postalcard
alias_attribute :body, :message
alias_attribute :subject, :title
named_scope :nosugar, :conditions => { :sugarcrm => false }
def company_name
contact = Contact.find_by_id(self.contact_id)
return contact.company_name
end
def asset
Postalcard.find_by_id(self.postalcard_id)
end
def asset_class
Postalcard.find_by_id(self.postalcard_id).class.name
end
end
# == Schema Information
#
# Table name: contact_postalcards
#
# id :integer not null, primary key
# title :string(255)
# contact_id :integer
# postalcard_id :integer
# message :text
# campaign_id :integer
# date_sent :datetime
# created_at :datetime
# updated_at :datetime
# postal_id :integer
# sugarcrm :boolean default(FALSE)
# status :string(255)
#
I am unclear as to why I keep getting an 'undefined method' -- I have added the status attribute (it had been missing before but used a migration and then raked), so need some help...thank you.
Have you restarted your Rails application since you ran your migration? If you're running in production mode, Rails caches your classes until you restart it, and since status wasn't an attribute before the migration, Rails wouldn't have added accessor methods for it, which would explain why status= is undefined.