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PODynamically adding prepopulated nested forms using cocoon and rails3-jquery-autocomplete
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  1. PODynamically adding prepopulated nested forms using cocoon and rails3-jquery-autocomplete
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    copied!<p>Thanks for your time.</p> <p>I am working on rails 3.2 and I am using gems <a href="https://github.com/plataformatec/simple_form" rel="nofollow">simple_form</a>, <a href="https://github.com/nathanvda/cocoon" rel="nofollow">cocoon</a>, and <a href="https://github.com/crowdint/rails3-jquery-autocomplete" rel="nofollow">rails3-jquery-autocomplete</a>.</p> <p>I have following models <strong>Machine, Part, PartUsage, MachineCosting and PartCosting</strong></p> <p>Machine and Part models with many-to-many association.</p> <pre><code> class Machine &lt; ActiveRecord::Base attr_accessible :name has_many :part_usages has_many :parts, :through =&gt; :part_usage end class Part &lt; ActiveRecord::Base attr_accessible :name end class PartUsage &lt; ActiveRecord::Base attr_accessible :machine_id, :part_id belongs_to :part belongs_to :machine end </code></pre> <p>MachineCosting and PartCosting models with one-to-many association.</p> <pre><code> class MachineCosting &lt; ActiveRecord::Base attr_accessible :machine_id, :total_cost, :machine_name, :part_costings_attributes attr_accessor :machine_name has_many :part_costings, :dependent =&gt; :destroy accepts_nested_attributes_for :part_costings, :allow_destroy =&gt; true def machine_name self.machine.try(:name) end end class PartCosting &lt; ActiveRecord::Base attr_accessible :part_id, :part_name, :cost attr_accessor :part_name belongs_to :machine_costing belongs_to :part def part_name self.part.try(:name) end end </code></pre> <p>Form for MachineCosting</p> views/machine_costings/_form.html.erb <pre><code> &lt;%= simple_form_for(@machine_costing, :html =&gt; {:multipart =&gt; true}) do |f| %&gt; &lt;%= f.input :machine_id, :url =&gt; autocomplete_machine_id_machines_path, :as =&gt; :autocomplete %&gt; &lt;!-- HERE, WHENEVER I SELECT A MACHINE, I WANT TO ADD NESTED-FORMS FOR PARTCOSTINGS CORRESPONDING TO ALL THE PARTS OF THE MACHINE I JUST SELECTED.--&gt; &lt;%= f.simple_fields_for :part_costings do |part_costing|%&gt; &lt;%= render 'part_costings/part_costing_fields', :f =&gt; part_costing %&gt; &lt;% end %&gt; &lt;% end %&gt; </code></pre> <p>Please suggest how can I populate and dynamically add fixed no of fields for PartCostings using javascript after machine_id is selected in the field.</p> <p>I would be happy to provide any more information. </p> <p>Thanks again!! </p>
 

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