css - Custom Navigation Bar Color by URL ID -

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i've created traditional navigation bar. works great, customize navbar color district url.

for example:

###blue http://0.0.0.0:3000/districts/1  ###red http://0.0.0.0:3000/districts/2  ###orange http://0.0.0.0:3000/districts/3  etc.

i've hacked out solution, isn't efficient when add more districts. somehow loop through each district , associated css_color.

district params

:name, :css_color, :photo

css

.navbar1 {   background-color: #4b8dc8; }  .navbar2 {   background-color: #406da6; }  .navbar3 {   background-color: #640000; }  .navbar4 {   background-color: #1450a3; }  .navbar5 {   background-color: #cbaa7f; }

_navigation.html.erb

###how can more efficiently <% if  params[:controller] == 'static_pages' || params[:controller] == 'searches' %>   <nav class="navbar navbar-default navbar-fixed-top"> <% elsif params[:controller] == 'sessions' %>   <nav class="navbar navbar-default navbar-fixed-top"> <% elsif params[:controller] == 'password_resets' %>   <nav class="navbar navbar-default navbar-fixed-top"> <% elsif params[:controller] == 'resource_tags' %>   <nav class="navbar navbar-default navbar-fixed-top"> <% elsif params[:controller] == 'favorites' %>   <nav class="navbar navbar-default navbar-fixed-top"> <% elsif @districts %>   <nav class="navbar navbar-default navbar-fixed-top">  ###beg of districts <% elsif @district.id == 1 %>   <nav class="navbar navbar1 navbar-default navbar-fixed-top"> <% elsif @district.id == 2 %>   <nav class="navbar navbar2 navbar-default navbar-fixed-top"> <% elsif @district.id == 3 %>   <nav class="navbar navbar3 navbar-default navbar-fixed-top"> <% elsif @district.id == 4 %>   <nav class="navbar navbar4 navbar-default navbar-fixed-top"> <% elsif @district.id == 5 %>   <nav class="navbar navbar5 navbar-default navbar-fixed-top"> <% end %>

firstly - looks want common navbar stuff options. difference difference if have districts. means don't need guff checking ever kind of controller or session. just:

<% if @district.present? %>    ... you'll district-specific stuff here <% else %>    <nav class="navbar navbar-default navbar-fixed-top"> <% end %>

right? no sense in repeating same code on , on multiple options, if it's there.

now need figure out put in if have district... id one-to-one match css style_names

navbar1 district id 1 navbar2 district id 2 etc...

so don't need more id:

<% if @district.present? %>    <nav class="navbar navbar<%= @district.id %> navbar-default navbar-fixed-top"> <% else %>    <nav class="navbar navbar-default navbar-fixed-top"> <% end %>

but there's still duplication here. thing differs between navbar @ top (in if-clause) , navbar @ bottom (in else-clause) style... can cut down if/else surround difference this:

<nav class="navbar <%= "navbar#{@district.id}" if @district.present? %> navbar-default navbar-fixed-top">

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