I'm using a nested fields_for that isn't displaying, any ideas? I think my relationships are setup correctly but the field isn't rendering at all.
MODEL EXCERPT
class DaysEvent < ActiveRecord::Base
belongs_to :event
belongs_to :location
accepts_nested_attributes_for :event
TRUNCATED VIEW
<%= form_for(DaysEvent.new, :remote => true, :html => { :class => "form-inline"} ) do |f| %>
<fieldset>
<%= f.fields_for :event do |event_form| %>
<div class="control-group">
<%= event_form.label :allow_user_to_suggest_dates, :class => 'control-label' %>
<div class="controls">
<%= event_form.check_box :allow_user_to_suggest_dates, :class => 'text_field' %>
</div>
</div>
</fieldset>
<% end %>
Related
I am trying to use :_destroy method in a nested form, but it just does not work
There are two models:
class Setting < ActiveRecord::Base
attr_accessible :category, :name, :setting_items_attributes, :_destroy
attr_accessor :_destroy
has_many :setting_items, :dependent => :destroy
accepts_nested_attributes_for :setting_items, :reject_if => lambda { |a| a[:content].blank? }, :allow_destroy => true
end
class SettingItem < ActiveRecord::Base
attr_accessible :setting_id, :value
belongs_to :setting
end
In the controller I create a instance:
def edit
#setting = Setting.find(params[:id])
#setting.setting_items.build
end
And the form looks like this:
<%= form_for(#setting) do |f| %>
<div class="field">
<%= f.label :category %>
<%= f.text_field :category %>
</div>
<div class="field">
<%= f.label :name %>
<%= f.text_field :name %>
</div>
<hr>
<h3>Params:</h3>
<%= f.fields_for :setting_items do |s| %>
<span>
<div class="fields">
<%= s.text_field :value %>
<%= s.hidden_field :_destroy %>
<%= link_to_function "delete", "remove_fields(this)"%>
</div>
<% end %>
<div class="actions">
<%= f.submit "Update", :class => "btn btn-primary"%>
</div>
<% end %>
Also the function I use is here:
function remove_fields(link){
$(link).prev("input[type=hidden]").val("1");
$(link).parent().fadeOut("slow");
}
So the setting_items form is simply not working at all, It shows the update is successful, but nothing is actually added or deleted.
for example->your model associations are as follows: just follow the below steps to make use of magical _destroy attribute
####parent model
plan.rb
has_many :members,:dependent => :destroy
#this is important you want to destroy nested records
accepts_nested_attributes_for:members,:allow_destroy => true
attr_accessible :members_attributes
##child model
member.rb
belongs_to :plan
######controller
def edit
#plan.Plan.find(params[:id])
end
#####edit.html.erb
<%= form_for #plan do |f| %>
<%= f.fields_for :members do |member| %>
<div class="member">
<%= member.text_field :title%>
<%= image_tag 'delete.png',:class =>'remove_member',:id=>member.id %>
<!-- we need to set this hidden field value as 1 to mark it to be deleted during save/update of parent-->
<%= member.hidden_field :_destroy, :class => 'delete_member', :member_id => member.id %>
<!--similar to
<input id="plan_members_attributes_0__destroy" class="delete_member" type="hidden" value="false" name="plan[members_attributes][0][_destroy]" member_id="#{id of member}">
-->
</div>
<%end%>
<%end%>
##add js onclick of remove button/image
$('.delete_member').click(function(){
//remove div from screen
$(this).closest('.member').remove();
//get relevant id to remove/mark as delete
id =jQuery(this).attr('id');
//remove/mark the nested model/record as ready for deletion for rails by adding true/1 value
$("input[member_id="+id+"]").attr('value',1);
})
I have a model named Page and one named Medium. Medium is for uploaded images. The two models are connected with a rich HABTM association.
I want to be able to upload images through my page edit form. However i got a strange result. I am only getting the file field when the page already have an image associated with it. What can cause this?
This is my page model:
class Page < ActiveRecord::Base
attr_accessible :content, :title, :url, :status, :excerpt, :media_attributes
belongs_to :users
has_many :page_medium
has_many :media, :through => :page_medium
accepts_nested_attributes_for :media
acts_as_url :title, :only_when_blank => true, :sync_url => true
acts_as_list
STATUS = %w[draft published]
def to_param
"#{url}" # or whatever you set :url_attribute to
end
validates :title, :status, :url, :presence => true
end
This is my form:
<%= simple_form_for #page, :html => { :class => 'page-form' } do |f| %>
<div class="span9">
<div class="row">
<%= f.input :title, input_html: { class: 'span6'}, wrapper_html: { class: 'span6'} %>
<%= f.input :url, input_html: { class: 'span3'}, wrapper_html: { class: 'span3'} %>
</div>
<div class="tabbable"> <!-- Only required for left/right tabs -->
<ul class="nav nav-tabs">
<li class="active">Content</li>
<li>Excerpt</li>
</ul>
<div class="tab-content">
<div class="tab-pane active" id="tab1">
<%= f.input :content, label: false, input_html: { class: 'wysihtml5 span9' } %>
</div>
<div class="tab-pane" id="tab2">
<%= f.input :excerpt, label: false, input_html: { class: 'wysihtml5 span9 excerpt' }%>
</div>
</div>
</div>
</div>
<div class="span3">
<div class="well">
<fieldset>
<legend>Options</legend>
</fieldset>
<%= f.input :status , collection: Page::STATUS.map { |s| [s.humanize, s] }, prompt: '- Select page status -' %>
<div class="form-actions">
<%= f.button :submit, :class => 'btn btn-primary' %>
<%= link_to t('.cancel', :default => t("helpers.links.cancel")),
pages_path, :class => 'btn' %>
</div>
</div>
</div>
<div class="span9">
<%= f.simple_fields_for :media do |m| %>
<%= m.input :image, as: :file %>
<% end %>
</div>
<% end %>
<%= render :partial => 'display_images' %>
Please comment if you need any more information or code. All tips, answers or constructive comments are appreciated. :)
this code:
<%= f.simple_fields_for :media do |m| %>
<%= m.input :image, as: :file %>
<% end %>
will only allow you to update the images you already have.
To add more images I suggest you follow this episode of railscast: http://railscasts.com/episodes/196-nested-model-form-revised
I am trying to figure out the whole nested form thing, and am having issues rending the form for editing.
I'm not doing this the "typical way" with a new and create action, because i'm not actually going to be saving anything. I'm just using this form to generate some tests.
Here is what I have..
model.rb
class Model < ActiveRecord::Base
has_many :columns
has_many :associations
accepts_nested_attributes_for :associations, :reject_if => lambda { |a| a[:type].blank? }
accepts_nested_attributes_for :columns, :reject_if => lambda { |a| a[:name].blank? }
attr_accessible :name, :associations_attributes, :columns_attributes
end
column.rb
class Column < ActiveRecord::Base
belongs_to :model
attr_accessible :db_index, :mass_assign, :max_length, :min_length, :name, :required, :unique, :columns_attributes
validates :name, :presence => true
end
generator_controller.rb
def model
if params['submit']
#model = Model.new(params[:model])
#model.columns.build
else
#model = Model.new
3.times { #model.columns.build }
end
render 'generator/model'
end
form view
<%= nested_form_for(#model, :url => '/model', :html => {:style => 'width:100%;'}) do |f| %>
<%= flash_helper() %>
<h3>Model Name</h3>
<%= f.text_field :name %>
<h3>Add Table Columns</h3>
<div id="columns">
<% f.fields_for :columns do |builder| %>
<div class="float_left column">
<%= builder.label :name %>
<br>
<%= builder.text_field :name, :size => 20 %>
</div>
<div class="float_left column">
<%= builder.label :mass_assign %>
<br>
<%= builder.check_box :mass_assign %>
</div>
<div class="float_left column">
<%= builder.label :required %>
<br>
<%= builder.check_box :required %>
</div>
<div class="float_left column">
<%= builder.label :unique %>
<br>
<%= builder.check_box :unique %>
</div>
<div class="float_left column">
<%= builder.label :db_index %>
<br>
<%= builder.check_box :db_index %>
</div>
<div class="float_left column">
<br>
<%= image_tag "delete-icon24x24.png", :class => "btnDel clickable" %>
</div>
<br class="clear_float">
<% end %>
<%= f.link_to_add image_tag('add-icon.png'), :columns %>
</div>
<br><br>
<input type="submit" name="submit">
<p>
<%= #results %>
</p>
<% end %>
So the problem is, the form when new is not displaying the columns that "3.times { #model.columns.build }" is supposed to do. Also, when I submit the form, I need to figure out why it is getting rid of all of those nested attributes that were added. So each time I submit the form, and it renders the form again, all the attributes are gone. (The "model" attributes are still there, but the "column" attributes reset each time)
Any ideas on what i'm doing wrong?
Thanks
I am embarrassed to even admit this, but hopefully it will help someone else with one more thing to check if they have the same problem.
<% f.fields_for :columns do |builder| %>
changed to:
<%= f.fields_for :columns do |builder| %>
Yeah.. can't believe I did that...
I'm doing a nested form in Rails 3.2.5, but when I add the accepts_nested_attributes_for my fields_for disappear (they just stop showing in my form).
This are my models:
class Product < ActiveRecord::Base
attr_accessible :title, :description, :variants_attributes
has_many :variants
accepts_nested_attributes_for :variants
validates :title, presence: true
end
My second model is
class Variant < ActiveRecord::Base
belongs_to :product
attr_accessible :price, :sku, :weight, :inventory_quantity, :product_id
end
And in my view I have
<%= form_for [:admin, #product], :html => {:multipart => true} do |f| %>
<%= render 'admin/shared/error_messages', object: f.object %>
<fieldset>
<legend>Producto Nuevo</legend>
<div class="control-group">
<%= f.label :title, 'Título', class: 'control-label' %>
<div class="controls">
<%= f.text_field :title %>
</div>
</div>
**<%= f.fields_for :variants do |variant| %>
<%= render 'inventory_fields', f: variant %>
<% end %>**
<div class="actions">
<%= f.submit 'Guardar', class: 'btn btn-primary' %>
</div>
<% end %>
_inventory_fields.html.erb
<div class="control-group">
<%= f.label :inventory_quantity, 'How many are in stock?', class: 'control-label' %>
<div class="controls">
<%= f.text_field :inventory_quantity, class: 'span1', value: '1' %>
</div>
</div>
The part between the ** is the one that is not being printed. And when I remove accepts_nested_attributes_for in my Product model fields_for start showing again but my form won't work.
What's happening?!?!
In the controller new action call
#product.varients.build
That should create 1 in memory varient in the product varient collection and it should bind to the fields for
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.