How to get some fixed static values in rails form tag drop down?

Question

I am trying to implement a filter. I have a model with column status and I have defined enum status for that column inorder to make it readable. And these statuses are fixed.

model

class Production < ApplicationRecord    
  enum status:{
    Preproduction:1,
    Postproduction: 2,
    Completed:3
  } 
end

And I am trying to filter the table based on the status given by the user. The result is filtered only if the user enter the complete name of status like preproduction. The controller is as follows:

controller

    def index
        if params[:filter]
          @productions = Production.where('productions.status like ?', "%#{Production.statuses[params[:filter].capitalize]}%")
        else
          @productions = Production.all
        end    
   end

As you can see I am using params to query.

My current form tag looks like this

index

<%= form_tag productions_path, :method => 'get', :id=> "contacts_search" do %>
  <p>
    <%= text_field_tag :filter, params[:filter] %>
    <%= submit_tag "Filter", :name => nil %>
  </p>
  <div id="cresults_div"><%= render 'cresults'%> </div>
<% end %>

I have some fixed statuses as follows:

Production.statuses => {"Preproduction"=>1, "Postproduction"=>2, "Completed"=>3}

Since I am querying the controller with the help of params I cant directly use f.select like suggested in some answers. How can I get these keywords Preproduction Postproduction Completed in ad drop down of this text field ?

since you are using `form_tag` so its not possible to use `f.select` instead of that you can use `select_tag` helper. — Anand, Dec 01 '17 at 12:05
@Gabbar i want to retain `filter` attribute and `params[filter]`. So I tried this `<%= select_tag "filter", options_from_collection_for_select(Production.statuses) :filter, params[:filter] %>` . I am having difficult time getting it right. — user3576036, Dec 01 '17 at 12:16
lets try the given solution below, hopefully it can help you. let me know for further guidance. — Anand, Dec 01 '17 at 12:23
Yeah got it. I added what you answered in select tag and I had to make some changes in the controller. Looks like you edited the answer. That's exactly what I did. — user3576036, Dec 01 '17 at 12:26

score 1 · Accepted Answer · edited Dec 01 '17 at 15:08

1

<%= select_tag :'filter', options_for_select(Production.statuses, params[:filter]), include_blank: '--Select One Option--' %>

in controller: -

def index
  if params[:filter]
    @productions = Production.where(status: params[:filter])
  else
    @productions = Production.all
  end    
end

edited Dec 01 '17 at 15:08

Sebastián Palma

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answered Dec 01 '17 at 12:20

Anand

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How to get some fixed static values in rails form tag drop down?

1 Answers1