Chaining form fields via subform

[Big Mister T]

Running into a situation where the second column is not updating as expected when opening a record to edit via a subform.  When you open to edit, the values in the second column are not constrained based on the value in the first column.  It works fine on create and even works in edit if you update the first column the second will then be constrained as expected.  Here is my setup:

class Document < ApplicationRecord

has_many :geologies

has_many :geology_types, through: :geologies

has_many :geology_techniques, through: :geologies

end

class Geology < ApplicationRecord

belongs_to :document

belongs_to :geology_type

belongs_to :geology_technique

end

class GeologyTechnique < ApplicationRecord

belongs_to :geology_type

has_many :geologies

has_many :documents, through: :geologies

end

class DocumentsController < ApplicationController

active_scaffold :"document" do |config|

config.columns = [:name,  :geologies]

end

end

class GeologiesController < ApplicationController

active_scaffold :"geology" do |config|

config.subform.columns = [:geology_type, :geology_technique]

config.columns[:geology_type].form_ui = 'select'

config.columns[:geology_technique].form_ui = 'select'

config.columns[:geology_type].update_columns = :geology_technique

end

end

module GeologiesHelper

def options_for_association_conditions(association,record)   

if association.name == :geology_technique

{'geology_techniques.geology_type_id' => @record.geology_type_id}

else

super

end

end

end

When I create a new Document and add a new Geology via the subform it correctly constrains the geology_technique based on the value in geology_type.  When I edit the Document the subform correctly displays the geology_type and geology_technique but the values in geology_technique are not constrained as expected.  I need to update the value in geology_type before the geology_technique is constrained.  Interestingly, if I go directly to the geologies controller and edit a Geology the geology_technique is correctly constrained by the selected geology_type.  But it is not happening when editing via the subform from the documents controller.  So it seems like it is something to do with the association but I have not been able to figure it out.

How can I get the second column to be constrained when the record is initially opened in edit in the documents controller?

[Sergio Cambra]

Add geologies helper to documents controller, because when edit is open, render is done by documents controller, even subform, while changing column in subform calls geologies controller.

 

Regards,

Sergio

 

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[Big Mister T]

Success.  Thanks very much, Sergio!

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