Sqlite3 DB is only storing the ID and not anything else - ruby-on-rails

ive got a problem with my database in that it only seems to be storing the id of new entries and displaying those in my form instead of the :name attribute that im asking for. If I view the entry either using my form or via a sqlite3 browser. Only the ID is showing.
Here's my migration file..
class CreateClients < ActiveRecord::Migration
def change
create_table :clients do |t|
t.string :name
t.string :detail
t.string :more_detail
t.string :more_details
t.timestamps
end
end
end
My form..
<%= form_for #client, :html => { :class => 'form-horizontal' } do |f| %>
<div class="control-group">
<%= f.label :name, :class => 'control-label' %>
<div class="controls">
<%= f.text_field :name, :class => 'text_field' %>
</div>
</div>
<div class="control-group">
<%= f.label :detail, :class => 'control-label' %>
<div class="controls">
<%= f.text_field :detail, :class => 'text_field' %>
</div>
</div>
<div class="control-group">
<%= f.label :more_detail, :class => 'control-label' %>
<div class="controls">
<%= f.text_field :more_detail, :class => 'text_field' %>
</div>
</div>
<div class="control-group">
<%= f.label :more_details, :class => 'control-label' %>
<div class="controls">
<%= f.text_field :more_details, :class => 'text_field' %>
</div>
</div>
<div class="form-actions">
<%= f.submit nil, :class => 'btn btn-primary' %>
<%= link_to t('.cancel', :default => t("helpers.links.cancel")),
clients_path, :class => 'btn' %>
</div>
<% end %>
And my view..
...
<% #client.each do |client| %>
<tr>
<td><%= link_to client.name, client_path(client) %></td>
<td>
...
Instead of showing the name (eg foo) and then a link to that clients details. It's showing me /clients/3 and when I click on it, it's taking me to a page with empty name annd detail's fields even though they were specified when saving the entry.
If I use a sqlite3 browser. I can see the entrys have been saved but each has a null value for all columns except ID.

I think I know what your problem is. The latest Rails version has attribute protection from mass assignment by default, so you need to specify which attributes you want to be accessible from outside the model like this:
class Client < ActiveRecord::Base
attr_accessible :name, :detail, :more_detail
end
Read this section of the security guide.
P.S.: Did the console throw any errors when you are creating a new record?

Related

Why do I get ActionView::Template::Error: undefined method `isebook' for nil:NilClass on Heroku but not locally

I have a Rails 4 app running SQLite locally and PostgreSQL on Heroku.
I have a products class, which has a boolean column "isebook" that is set to either true or false in a form on products/new.html.erb.
<%= form_for(#product, :html => {:multipart => true}) do |f| %>
<% if #product.errors.any? %>
<div class="alert alert-danger alert-dismissable">
<button type="button" class="close" data-dismiss="alert" aria-hidden="true">×</button>
<h3><%= pluralize(#product.errors.count, "error") %> prohibited this product from being saved:</h3>
<ul>
<% #product.errors.full_messages.each do |msg| %>
<li><%= msg %></li>
<% end %>
</ul>
</div>
<% end %>
<div class="form-group">
<%= f.label :name %><br>
<%= f.text_field :name, class: "form-control" %>
</div>
<div class="form-group">
<%= f.label :link %><br>
<%= f.text_field :link, class: "form-control" %>
<p style="font-size:12px; margin-top:2px;"><i>(Begin link with http:// or https://)</i></p>
</div>
<div class="form-group">
<%= f.label :description %><br>
<%= f.text_area :description, class: "form-control" %>
</div>
<div class="form-group">
<%= f.label "Product is an Ebook?" %> <br />
<%= f.check_box :isebook %> <br />
</div>
<div class="form-group">
<%= f.label :image, 'Product Image' %><br>
<%= f.file_field :image, class: "form-control" %>
</div>
<div class="actions">
<%= f.submit "Create Product", class: "btn btn-primary" %>
</div>
<% end %>
In the controller, this field is being required:
def product_params
params.require(:product).permit(:name, :description, :isebook, :image)
end
The entire code for the controller method:
def new
# Only make new product if user has remaining products
#product = Product.new
if current_user.prodused < current_user.prodlimit
respond_with(#product)
else
redirect_to user_path(current_user.id), error: "You've reached your product limit. Upgrade your account to add more products."
end
end
This is the product model:
class Product < ActiveRecord::Base
validates :name, :description, presence:true
validates :link, :format => URI::regexp(%w(http https))
belongs_to :user
has_attached_file :image, :styles => {:medium => "300x300", :thumb => "200x200"}, :default_url => "/images/:style/missing.jpg"
end
This works correctly locally, when a new product is created the isebook field is assigned true or false based on if the checkbox is selected or not.
I'm now attempting to test on Heroku, I cleared the entire production database and ran all the migration files to clear all existing products. I then created an account successfully, when attempting to render products/new.html.erb I get the error ActionView::Template::Error: undefined method `isebook' for nil:NilClas
I cleared the entire production database and ran all the migration files to clear all existing products. I then created an account successfully
Are there any products?
ActionView::Template::Error: undefined method `isebook' for nil:NilClas
This error means you've called the method isebook on nil, likely meaning you tried to load one or all products, but in your case they don't exist, so calling the method on nil (nothing) throws an error.

Updating comments and state from the same form

I'm trying to build a small expense tracking app using Rails 4.1. When a user submits the expense request, it's state is marked as pending by default. The admin has to approve the request. I'm using state_machine gem to do this.
I just added comment functionality using acts_as_commentable gem, which works fine on its own. I wanted to combine the approval drop down and the comment box in the same form and used the following code in the expense show page:
<div class="row">
<div class="col-md-8">
<%= form_for [#expense, Comment.new] do |f| %>
<div class="form-group">
<%= f.label :state %><br />
<%= f.collection_select :state, #expense.state_transitions, :event, :human_to_name, :include_blank => #expense.human_state_name, class: "form-control" %>
</div>
<div class="form-group">
<%= f.label :comment %><br />
<%= f.text_area :comment, class: "form-control" %>
</div>
<%= f.submit "Submit", class: "btn btn-primary" %>
<% end %>
</div>
</div>
<br>
The problem is I get the "NoMethodError in Expenses#show - undefined method `state' for #". Is there a way I can update both the approval status and comment in one go?
The updated show page with nested attributes:
<div class="row">
<div class="col-md-8">
<%= nested_form_for (#expense) do |f| %>
<div class="form-group">
<%= f.label :state %><br />
<%= f.collection_select :state, #expense.state_transitions, :event, :human_to_name, :include_blank => #expense.human_state_name, class: "form-control" %>
</div>
<%= f.fields_for :comments do |comment| %>
<div class="form-group">
<%= comment.label :comment%>
<%= comment.text_area :comment, class: "form-control" %>
</div>
<% end %>
<%= f.submit "Submit", class: "btn btn-primary" %>
<% end %>
</div>
</div>
Nested attributes are your friend. They are so easy to implement I'd recommend avoiding acts_as_commentable to remove an unnecessary dependency and so you understand what's going on.
Use them like this:
# expense.rb
class Expense < ActiveRecord::Base
has_many :comments # << if polymorphic add `, as: :commentable`
accepts_nested_attributes_for :comments
end
# expenses_controller.rb
def new
#expense = Expense.new
#expense.comments.build
end
# expenses/new.html.haml
= form_for(#expense) do |f|
- # expense inputs...
= f.nested_fields_for(:comments) do |comment|
= comment.text_area(:body)
= f.submit
There are many options, so check the docs for more details (they're quite good).

Rails form_for select default option

I have a form_for select where the options are being defined from within the model. I am trying to get it to display a placeholder option but cannot figure out how to.
The Model:
class Factoid < ActiveRecord::Base
attr_accessible :description, :name, :title
validates_presence_of :description, :name, :title
validates_uniqueness_of :title
NAMES = "Angela", "Geordie", "Jared", "Jennifer", "Kevin", "Matthew", "Oscar", "Owen", "Regina", "Todd", "Vaibhavi", "Zack"
UNRANSACKABLE_ATTRIBUTES = ["id", "updated_at"]
def self.ransackable_attributes auth_object = nil
(column_names - UNRANSACKABLE_ATTRIBUTES) + _ransackers.keys
end
end
The Form:
<%= form_for #factoid, :html => { :class => 'form-horizontal' } do |f| %>
<div class="control-group">
<%= f.label :title, :class => 'control-label' %>
<div class="controls">
<%= f.text_field :title, :class => 'text_field' %>
</div>
</div>
<div class="control-group">
<%= f.label :description, :class => 'control-label' %>
<div class="controls">
<%= f.text_area :description, :class => 'text_area' %>
</div>
</div>
<div class="control-group">
<%= f.label :name, :class => 'control-label' %>
<div class="controls">
<%= f.select :name, :collection => Factoid::NAMES %>
</div>
</div>
<div class="form-actions">
<%= f.submit nil, :class => 'btn btn-primary' %>
<%= link_to t('.cancel', :default => t("helpers.links.cancel")),
factoids_path, :class => 'btn' %>
</div>
<% end %>
The second issue is that the dropdown menu is displaying the word "collection" at the top of it (See screenshot below). How do I get read of that. Ideally I want to have a dropdown menu with a placeholder of "Names" that is also displayed at the top when the dropdown menu is opened.
For your text field try something like:
<%= f.text_field :title, :class => 'text_field', value: 'my_default_value' %>
for your select try:
<%= f.select :name, Factoid::NAMES %>
See the docs for select and the rails guide for typical usage (I think the method I've shown you will not work upon submitting the form, see the guides linked for explanation, I'm not sure though).

Why won't my has_one relationship work

I have a few models Score ScoreAuthority ScoreColor and ScoreType. Score has_one authority, color, and type. Authority, color, and type each belong_to score. I am having trouble creating the form for Score.
I want users to create this relationship from Scores and everyone seems to handle only the reverse scenario creating from authorities, colors, types forms. What I mean specifically is for example:
Authorities
- foo
- bar
Colors
- red
- blue
I want the use to go into Score, chose to create a new score and then select foo from the drop down list, blue from the colors list, enter a score and submit. Authorities, colors and types will not change much and it would make any sense for the user to select Score from each of those.
When I currently do that I get the following error:
ScoreAuthority(#2248480380) expected, got String(#2155957040)
score/_form.html.erb
<%= form_for #score, :html => { :class => 'form-horizontal' } do |f| %>
<div class="control-group">
<%= f.label :product_id, "Products", :class => 'control-label' %>
<div class="controls">
<%= f.collection_select(:product_id, Product.order(:name), :id, :name) %>
</div>
</div>
<div class="control-group">
<%= f.label :score_authority, "Score Authority", :class => 'control-label' %>
<div class="controls">
<%= f.collection_select :score_authority, ScoreAuthority.order(:name), :id, :name, {}, {:class=>'chosen'} %>
</div>
</div>
<div class="control-group">
<%= f.label :score_type, "Score Types", :class => 'control-label' %>
<div class="controls">
<%#= f.collection_select(:score_type, ScoreType.order(:name), :id, :name) %>
<%= f.collection_select :score_type, ScoreType.order(:name), :id, :name, {}, {:class=>'chosen'} %>
</div>
</div>
<div class="control-group">
<%= f.label :score_color, "Score Types", :class => 'control-label' %>
<div class="controls">
<%= f.collection_select :score_color, ScoreColor.order(:name), :id, :name, {}, {:class=>'chosen'} %>
</div>
</div>
<div class="control-group">
<%= f.label :notation, :class => 'control-label' %>
<div class="controls">
<%= f.text_field :notation, :class => 'text_field' %>
</div>
</div>
<div class="control-group">
<%= f.label :value, :class => 'control-label' %>
<div class="controls">
<%= f.text_field :value, :class => 'text_field' %>
</div>
</div>
<div class="form-actions">
<%= f.submit nil, :class => 'btn btn-primary' %>
<%= link_to t('.cancel', :default => t("helpers.links.cancel")),
scores_path, :class => 'btn' %>
</div>
<% end %>
score_authorities, score_colors, score_types tables all have score_id as a column. Each of these models also has belongs_to :score.
The score model
has_one :score_authority
has_one :score_type
has_one :score_color
Not sure what I am doing wrong here, any help would be appreciated. Thanks!
you should use :score_authority_id instead of :score_authority in form
<%= f.collection_select :score_authority_id, ScoreAuthority.order(:name), :id, :name, {}, {:class=>'chosen'} %>
<%= f.collection_select :score_color_id, ScoreColor.order(:name), :id, :name, {}, {:class=>'chosen'} %>
<%= f.collection_select :score_color_id, ScoreColor.order(:name), :id, :name, {}, {:class=>'chosen'} %>
see this How do I create the view for the has_one association? for more detail
or you can try
class Score
has_one :score_authority
accepts_nested_attributes_for :score_authority
end
<%= form_for #score ... do |f| %>
...
<%= f.fields_for :score_authority do |b| %>
<%= b.collection_select :id, ScoreAuthority.all, :id, :name %>
...
<% end %>
...
<% end %>

Mass-assign protected attributes (Nested-form) Ruby/Rails

I'm trying to create a nested form but i got this error when trying to assign the parameters. I read a bunch of similar posts but cant figure out the problem. What could be wrong?
Can't mass-assign protected attributes: detalle_poliza
My models:
poliza_contable.rb
class PolizaContable < ActiveRecord::Base
has_many :detalle_polizas
accepts_nested_attributes_for :detalle_polizas
attr_accessible :concepto_poliza, :estatus, :fecha_aplicacion, :fecha_poliza, :no_poliza, :tipo, :tota_de_cargos, :total_de_abonos
end
detalle_poliza.rb
class DetallePoliza < ActiveRecord::Base
belongs_to :cuenta_contable
belongs_to :poliza_contable
attr_accessible :abono, :cargo,:cuenta_contable_id, :poliza_contable_id, :user_id, :id, :updated_at, :created_at
end
My form:
<%= form_for #poliza_contable, :html => { :class => 'form-horizontal' } do |f| %>
## OTHER FIELDS
<%= f.fields_for :detalle_poliza_attributes do |builder| %>
<% render :partial => "detalle_polizas/form", :locals => { :f => builder } %>
<% end %>
<% end %>
Rendered form:
<div class="control-group">
<%= f.label :cargo, :class => 'control-label' %>
<div class="controls">
<%= f.text_field :cargo, :class => 'text_field' %>
</div>
</div>
<div class="control-group">
<%= f.label :abono, :class => 'control-label' %>
<div class="controls">
<%= f.text_field :abono, :class => 'text_field' %>
</div>
</div>
<div class="control-group">
<%= f.label :poliza_contable_id, :class => 'control-label' %>
<div class="controls">
<%= f.number_field :poliza_contable_id, :class => 'number_field' %>
</div>
</div>
<div class="control-group">
<%= f.label :cuenta_contable_id, :class => 'control-label' %>
<div class="controls">
<%= f.number_field :cuenta_contable_id, :class => 'number_field' %>
</div>
</div>
<div class="control-group">
<%= f.label :user_id, :class => 'control-label' %>
<div class="controls">
<%= f.number_field :user_id, :class => 'number_field' %>
</div>
</div>
Request Parameters:
{"utf8"=>"✓",
"authenticity_token"=>"mI23Nnj4oPX+IW3mCvvIV7Auij+pjX/a7bl/HsudEW8=",
"poliza_contable"=>{"tipo"=>"Diario",
"concepto_poliza"=>"",
"fecha_poliza"=>"2012-06-25",
"detalle_poliza"=>{"cargo"=>"34",
"abono"=>"34",
"poliza_contable_id"=>"34",
"cuenta_contable_id"=>"34",
"user_id"=>"1"}}
"commit"=>"Create Poliza contable"}`
I'll appreciate any comment to fix it.
With according to railscast 196 Nested Model Form Part 1 you need to allow DetallePoliza attributes to be saved with parent. To achieve this goal just add attr_accessible :detalle_polizas_attributes to PolizaContable model:
poliza_contable.rb
class PolizaContable < ActiveRecord::Base
has_many :detalle_polizas
accepts_nested_attributes_for :detalle_polizas
attr_accessible :concepto_poliza, :estatus, :fecha_aplicacion, :fecha_poliza, :no_poliza, :tipo, :tota_de_cargos, :total_de_abonos, :detalle_polizas_attributes
end
Just making some research, finally found the nestes_form gem
Its a very straight forward implementation!
Hope it helps someone.

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