mongoid

问题 I'm trying to get custom relationship names to work in Mongo. A "collage" is a BSON document filled with BSON fields that are Work Ids. Here's what's in the database for "collage": Collage.create(slide_one: client.work.first.id, slide_two: client.work.second.id, slide_three: client.work.third.id) So, a collage is mongo record full of work Ids. I'd like to be able to write @collage.work_one or @collage.slide_one.work_one, or @collage.slide_one.work to get to the Work I want. Custom naming

问题 i want to create comments in ruby but i have problem 1) posts_controller.rb def comment Post.find(params[:id]).comments.create(params[:comment]) flash[:notice] = "Added your comment" redirect_to :action => "show", :id => params[:id] end 2)show.html.erb <%= form_tag :action => "comment", :id => @post %> <%= text_area "comment", "message" %><br /> <%= submit_tag "Comment" %> </form> 3)post.rb class Post include Mongoid::Document include Mongoid::Timestamps::Created include Mongoid::Timestamps:

问题 I need to upload some large CSV files via mongoid-paperclip and I am getting error Uploaded file2 my_file has an extension that does not match its contents . In terminal I can see this error as [paperclip] Content Type Spoof: my_file.csv (["text/csv", "text/comma-separated-values"]), content type discovered from file command: application/octet-stream. See documentation to allow this combination. Ok, I set validation as do_not_validate_attachment_file_type :my_file It does not help same error.

问题 Assume that I have a city model where: class city field :full_name, type: String # San Francisco, CA, United States field :_id, type: String, overwrite: true, default: ->{ full_name } end Assume that I have a factory defined in /spec/factories/cities.rb : FactoryGirl.define do factory :city do full_name 'San Francisco, CA, United States' end end Running the following code in one of the specs: city_attrs = { full_name: 'San Francisco, CA, United States' } City.create! city_attrs => #<City _id:

问题 A CSV containing the following rows is imported into mongodb via CSV using the mongoimport tool: object_1_id,field1,field2 52db7f026956b996a0000001,apples,oranges 52db7f026956b996a0000001,pears,plums The fields are imported into the collection Object2 . After import the rows are confirmed to exist via the console. #<Object2 _id: 52e0713417bcabcb4d09ad12, _type: nil, field1: "apples", field2: "oranges", object_1_id: "52db7f026956b996a0000001"> #<Object2 _id: 52e0713517bcabcb4d09ad76, _type:

问题 I've a Rails model set up with Mongoid::Versioning. class Post include Mongoid::Document include Mongoid::Timestamps include Mongoid::Versioning field :name, type: String end I want to delete a specific older version. For eg. post = Post.create name: 'A' post.update_attributes name: 'B' post.update_attributes name: 'C' post.version #=> 3 post.versions.count #=> 2 first_version = post.versions.first #=> #<Post _id: , created_at: _, updated_at: _, version: 2, name: "B"> I want to delete first

问题 I want to implement a scope overdue in a model Invoice to return all invoices that exceeded the date, until they had to be paid. I have the fields invoice_date, :type => Date and days_for_payment, :type => Integer . In my previous version, which was built on ActiveRecord, I could use the query Invoice.where("invoice_date + days_for_payment < ?", Date.today) This query made the calculation on the DB side. Is there a way to get the same thing done with Mongoid? Or does anyone know a good

问题 I want to be able to dynamically transform an input hash like the following: { name: ['John', 'Luke'], status: ['ACTIVE', 'SUSPENDED'] } in a query that will put the different fields (name, status) in a AND relationship, and the values for each field in a OR relationship. In SQL that would be something like this: SELECT * FROM my_class WHERE (name LIKE 'John' OR name LIKE 'Luke') AND (status LIKE 'ACTIVE' OR status LIKE 'SUSPENDED') I've tried different approaches but I'm kind of stucked.

问题 I am using admin_assistant and have hacked on MongoDB support. The only issue now is that the index page queries are incredibly slow. admin_assistant uses will_paginate for these queries. I verified that the exact slow-down spot is where the will paginate collection is first accessed (.empty?). In the log I see the query, and after that I see these being slowly printed: MONGODB cursor.refresh() for cursor 3474711247518436755 MONGODB cursor.refresh() for cursor 3474711247518436755 MONGODB

问题 I have the following models which basically refer to Lessons and Categories. Each lesson can have one category, and each category is embedded in a lesson. class Lesson include Mongoid::Document field :title, :type => String field :category, :type => String field :price, :type => Integer field :description, :type => String field :user_id, :type => String validates_presence_of :title validates_presence_of :category validates_presence_of :price validates_presence_of :user_id validates