Databases
StackOverflow2013
Postsdbo
POHave user add "tags" while adding article with Mongoid & Ruby on Rails
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POHave user add "tags" while adding article with Mongoid & Ruby on Rails
    primarykey
    data
    text
    <p>Im using Ruby on Rails to allow a user to add a project post much like Stackoverflow. I can do this with the regular MySQL database, but I am unsure as to how it works with Mongoid.</p> <p>This is how the process works:</p> <ol> <li>User writes some details about the project (client, date, description)</li> <li>Add tags like Stackoverflow, where they just simply need to add a space between each one.</li> <li>Submit the post</li> </ol> <p>Now in my model I try to break the tags up into an array (splitting where there is a space) and then saving the tags one after the other. However, the row for the Project and the Tag do not reference one another. The Project tag_ids = [] and the Tag project_ids = []</p> <p>project.rb model</p> <pre><code>class Project include Mongoid::Document include Mongoid::MultiParameterAttributes field :client, :type =&gt; String field :description, :type =&gt; String field :url, :type =&gt; String field :project_date, :type =&gt; Date has_and_belongs_to_many :tags attr_accessor :tag_names after_save :assign_tags def tag_names @tag_names || tags.map(&amp;:name).join(" ") end def assign_tags @project = self @project_id = self.id if @tag_names self.tag_names = @tag_names.split(/\s+/).map do |name| Tag.find_or_create_by(:name =&gt; name) end end end end </code></pre> <p>tag.rb model</p> <pre><code>class Tag include Mongoid::Document field :name, :type=&gt; String has_and_belongs_to_many :projects end </code></pre> <p>Any ideas as to how to add these reference ids? Thanks!</p>
    singulars
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PTQuestion
    1. This table or related slice is empty.
    1. USBrian Weinreich
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    1. VO
      singulars
      1. POHave user add "tags" while adding article with Mongoid & Ruby on Rails
      1. USMarkus Graf
      1. VTFavorite
    1. COOh, and the input _form.html.erb has this <div class="field"> <%= f.label :tag_names %><br /> <%= f.text_field :tag_names %> </div>
      singulars
      1. POHave user add "tags" while adding article with Mongoid & Ruby on Rails
      1. USBrian Weinreich
    2. COStackOverflow actually uses javascript to split up tags, not sure if they do preprocessing but it would be trivial on the front end.
      singulars
      1. POHave user add "tags" while adding article with Mongoid & Ruby on Rails
      1. USDan Healy
    3. COWell the problem isn't the breaking up of tags. I can get that. It's having the tag_ids referenced I'm the project and project_ids referenced in the tags.
      singulars
      1. POHave user add "tags" while adding article with Mongoid & Ruby on Rails
      1. USBrian Weinreich
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload