I have a form in my Rails app that passes its data to a third party (Stripe) without a model. However, my client now wants the same form to include other fields that are persisted. How do I create a form that submits model bound and non-model-bound fields?
I'm not familiar with Stripe, but you can easily include non-database-bound attributes in the model using 'attr_accessor'.
in your model
class MyModel < ActiveRecord::Base
attr_accessor :stripe_attribute_one, :stripe_attribute_two
end
in your form
# assuming your model has migrated attributes called :db_attribute_one and :db_attribute_two
<%= form_for #my_model %>
<%= f.text_field :db_attribute_one %>
<%= f.text_field :db_attribute_two %>
<%= f.text_field :stripe_attribute_one %>
<%= f.text_field :stripe_attribute_two %>
<% end %>
Related
I have a validation in my Author model that checks if the current User already is associated with an Author record before creating a new Author. While the validation is triggering, the error message isn't displaying in the form.
author.rb
belongs_to :user
validates :user, :uniqueness => {:message=>"An author account already exists for this user"}
author#new
<%= simple_form_for(#author) do |f| %>
<%= f.error_notification %>
<%= f.input :first_name %>
<%= f.input :last_name %>
<%= f.input :bio %>
<%= f.button :submit %>
<% end %>
What happens is that it shows that there's an error, but no message appears. How can I fix this? Thank you!
simple_form only shows errors for input fields that have errors. You have an error on the attribute "user" but you have no input field for that where the error could be shown. You only have first name, last name and bio.
In your Controller you might want to redirect to the existing author instead when there already is an author. Or simply show #author.errors.full_messages to tell the end user what's going on.
I'm building a rails app that hosts games. Games belong to categories and thus each category can have many games.
I'm using the Friendly_id gem to generate URL slugs and have the following setup:
Category.rb
class Category < ActiveRecord::Base
extend FriendlyId
friendly_id :name_and_games, use: [:slugged]
has_many :games
def name_and_games
"#{name}-games"
end
end
Games_Controller.rb
...
def category
#category = Category.friendly.find(params[:id])
#categories = Category.all
#games = #category.games.page(params[:page])
render 'games/index'
end
...
Routes.rb
get ':friendly_id', to: "games#category", as: :category
Category_View.html.erb
<% categories.each do |category| %>
<%= link_to category_path(category) do %>
<span><%= pluralize(category.name.capitalize, "Game") %> (<%= category.games.count %>)</span>
<% end %>
<% end %>
The problem is that when I use Friendly_id's slugged module, Rails is generating my urls WITHOUT the "-games" suffix so I end up with URLS like this:
http://localhost:3000/action
http://localhost:3000/adventure
Is there some way to have rails keep the "-games" in my URLs and have it all play nicely such that the "-games" are dropped when it comes time for processing in the model?
Thank you.
So it's:
User.find_each{ |i| i.slug = nil; i.save!; }
Turns out the issue wasn't that Friendly_id wouldn't make the update but that the slug was not getting refreshed.
I had to drop into the Rails console and manually set the "slug" column to nil for each category. Once I did this, Friendly_id reset the "slug" column to reflect my additional text.
This is a follow-up of my question: Rails 4 - Access Join Table Value in views
Now I know how to retrieve join table attributes and show them in view. But still I can't find the right approach to edit and update the attribute.
Models:
class Recipe < ActiveRecord::Base
has_many :recipe_ingredients
has_many :ingredients, through: :recipe_ingredients
end
class Ingredient < ActiveRecord::Base
has_many :recipe_ingredients
has_many :recipes, through: :recipe_ingredients
end
class RecipeIngredient < ActiveRecord::Base
belongs_to :recipe
belongs_to :ingredient
#there is an attribute t.text :amount
end
Recipe#Edit:
...
<%= simple_form_for #recipe do |f| %>
<div class="form-group">
<%= f.input :name, input_html: { class: "form-control"} %>
<%= f.input :description, input_html: { class: "form-control"} %>
<%= f.collection_select(:ingredient_ids, Ingredient.all, :id, :title, {}, {multiple: true}) %>
<!-- reserve for recipe_ingredients.amount -->
</div>
<%= f.submit "Submit", disable_with: 'Submitting...', class: "btn btn-primary"%>
<% end %>
...
As shown above, this is a many-to-many relationship, each recipe may have several ingredients. It works fine and I can choose the right models to associate with (using collection_select). But I have left the work to edit and update join table attributes undone. I have two ideas in my mind:
Make another edit page for editing join model attributes
Ajax? But not quite familiar with
I know the question seems to be trivial, but many solutions are out-dated(Rails 3). Desperate for a Rails 4 solution.
Edit
Intention: I would like to make the creation of Recipe and Ingredient models on their own, which is done. User will see which recipe using the ingredient in Ingredient#show action, which is done also. As to Recipe#show action, there is a slight difference, where user will see which ingredient it is using as well as the amount(join table attribute), which is done in my previous question. The last problem is, I would like to make this attribute editable.
You may want to look into doing nested models combined with the cocoon gem. This will allow you to have a form which updates multiple models at once and it takes care of all the ajax for you. https://github.com/nathanvda/cocoon. I used this gem on a system where the user needed to be able to add one or more answers to a trivia question via dynamic form fields. I think it could work for you as well with giving the user the ability to add one or many RecipeIngredient relations for a recipe. You would be able to add selects dynamically to your form via Cocoon containing a select with the Ingredient model records.
I am using custom fields in redmine. I need a set of custom fields to populate based upon how a user answers a question. for instance, if a user chooses "a" they get a series of 3 custom fields that pertain to "a" ..if a user chooses "b" they get a series of custom fields that pertain to "b" is this possible? any help would be great!
Are You search ready plugin or want to develop your own with neccesary functionality?
In case of develop You may pass selected field from view to controller as parameter. Then check which field was selected and set value to it from other parameter.
I think that somethng like this:
view
<%= form_tag ... do %>
<%= label_tag :selected_field %>
<% select_tag :selected_field, options_for_select(['field1', 'field2',...])
<%= label_tag :value %>
<% text_box_tag :value, value %>
<%= submit_tag 'save' %>
<% end %>
and controller method
def update
obj = SomeClass.find_by... # get your instance
case params[:selected_field]
when 'field1'
obj.field1 = params[:value]
when 'field2'
obj.field2 = params[:value]
end
obj.save
end
I have a project with partials associated with it. I am trying to create a selection box so that the user can select a parcel from the associated parcels to add to another model associated with the project. What I have below is my attempt that displays the parcels but simply returns the id ie I get
undefined method `each' for "64":String
With 64 being the parcel's ID.
I would also like to allow the user to select multiple parcels or no parcels.
<% #pro_par = #project.parcels %>
<%= f.input :parcels, :collection => #pro_par, :label_method =>:tax_parcel %>
How can I fixe this?
If you already have a associated model like
class Article < ActiveRecord::Base
has_many :parcels
# rest of the code
end
then you can directly call the associating models in the view using simple form
<%= simple_form_for #project do |f| %>
<!-- remaining codes -->
<%= f.association :parcels %>
<%= f.button :submit %>
<% end %>
it automatically lets you select multiple parcels.
Reference: https://github.com/plataformatec/simple_form#associations