Store data from one table to another in rails - ruby-on-rails

Question

I have a fundings table and organisations table. Fundings table has organisation_id. In fundings table I have fields that are same with organisations table. What I want is when application is created and on funding show page there is a add button to add all fields that are same in fundings and organisations table gets stored in organisations table as well. Please help
_form.html.erb (funding_form)
<%= form_for([#parent, #child, #funding], :html => {class: "form-horizontal",role: "form"}) do |form| %>
<div class = "form-group">
<div class="control-label col-sm-2">
<%= form.label :activity_details, class: "required" %>
</div>
<div class="col-sm-8">
<%= form.text_area :activity_details, required: true %>
</div>
</div>
<!--Adding organisation -->
<div class = "form-group">
<div class="control-label col-sm-2">
<%= form.label :name_of_organisation, id: "name_of_organisation-label" %>
</div>
<div class="col-sm-8">
<%= form.text_field :name_of_organisation, class: "form-control hidden", id: "name_of_organisation-textfield" %>
</div>
</div>
<div class = "form-group">
<div class="control-label col-sm-2">
<%= form.label :address, id: "address-label" %>
</div>
<div class="col-sm-8">
<%= form.text_field :address, class: "form-control hidden", id: "address-textfield" %>
</div>
</div>
<div class = "form-group">
<div class="control-label col-sm-2">
<%= form.label :city, id: "city-label" %>
</div>
<div class="col-sm-8">
<%= form.text_field :city, class: "form-control hidden", id: "city-textfield" %>
</div>
</div>
<div class = "form-group">
<div class="control-label col-sm-2">
<%= form.label :province, id: "province-label" %>
</div>
<div class="col-sm-8">
<%= form.text_field :province, class: "form-control hidden", id: "province-textfield" %>
</div>
</div>
<!-- End Adding organisation -->
<div class="form-group">
<div class="col-sm-10">
<%= form.submit "Apply", class: 'btn btn-primary btn-lg' %>
</div>
</div>
</div>
</div>
<% end %>
show.html.erb(funding show page)
<p>
<strong>Name of Organisation:</strong>
<%= #funding.name_of_organisation %></p><br>
<p>
<strong>Address:</strong>
<%= #funding.address %></p><br>
<p>
<strong>City:</strong>
<%= #funding.city %></p><br>
<p>
<strong>Province:</strong>
<%= #funding.province %></p><br>
<p>
<% if current_user.admin? %>
<%= link_to 'Add Organisation', "" %>
<% end %>
if admin clicks on add organisation fields get added to organisation table.
schema funding table
t.text "activity_details"
t.string "city"
t.string "name_of_organisation"
t.string "province"
t.text "address"
schema organisations table
t.string "name_of_organisation"
t.text "address"
t.string "city"
t.string "province"
funding.rb
belongs_to :organisation
organisation.rb
has_many :fundings
organisations controller
I have a new and create method to create organisation by the admin directly.so i have added a new_org method to get add the organisation from the funding table. But I am not able to find out how to implement it.
def new_org
#organisation = Organisation.new
end
def create_org
#organisation = Organisation.new(organisation_params)
if #organisation.save
flash[:success] = "Organisation is added"
redirect_to main_admin_service_provider_path
else
render 'new'
end
end

Answer 1

Something like this should work:
app/controllers/fundings_controller.rb
class FundingsController < ApplicationController
before_action :set_funding, on: %i[show add_organisation]
# ...
def update_organisation
return head :forbidden unless current_user.admin?
# assuming funding always has an organisation
whitelist = %w[your field names]
#funding.organisation.update!(#funding.attributes.slice(*whitelist))
redirect_to #funding, notice: 'fields successfully added to organisation'
end
# ...
private
def set_funding
#funding = Funding.find(params[:id])
end
end
config/routes.rb
Rails.application.routes.draw do
# ...
resources :fundings, only: :show do
# using patch because we are updating an existing resource
# but you can change this to whatever you like
patch 'update_organisation', on: :member
end
# ...
end
app/views/fundings/show.html.erb
<% if current_user.admin? %>
<%= link_to 'Add Organisation', update_organisation_funding_path(#funding), method: :patch %>
<% end %>
Alternatively you can update all double fields (without whitelisting) using the following code:
double_attribute_names = #funding.attribute_names & #funding.organisation.attribute_names
#funding.organisation.update!(#funding.attributes.slice(*double_attribute_names)
However keep in mind that this may produce unwanted results. For example some fields you don't want to update like 'id', 'created_at', 'updated_at' are most likely present on both instances, and maybe some custom double fields.
This can be resolved by creating a blacklist to exclude those fields:
blacklist = %w[id created_at updated_at]
double_attribute_names = #funding.attribute_names & #funding.organisation.attribute_names
#funding.organisation.update!(#funding.attributes.slice(*double_attribute_names).except(*blacklist))
But generally speaking it's better to whitelist.

Answer 2

This is not a good way to do it but you can define a hidden form with hidden fields with values of #funding.x on show page by defining
#organization = Organization.new in show method on Fundings.controller then you can simply post it as normal form. Or you can show this form to only admins.