Silence CSS logging in development - it's way too noisy

app/assets/javascripts/discourse/initializers/live-development.js.es6

@@ -22,6 +22,7 @@ export default {
 
     // Observe file changes
     messageBus.subscribe("/file-change", function(data) {
+
       if (Handlebars.compile && !Ember.TEMPLATES.empty) {
         // hbs notifications only happen in dev
         Ember.TEMPLATES.empty = Handlebars.compile("<div></div>");

app/models/stylesheet_cache.rb

@@ -4,9 +4,14 @@ class StylesheetCache < ActiveRecord::Base
   MAX_TO_KEEP = 50
 
   def self.add(target, digest, content, source_map)
+    old_logger = ActiveRecord::Base.logger
 
     return false if where(target: target, digest: digest).exists?
 
+    if Rails.env.development?
+      ActiveRecord::Base.logger = nil
+    end
+
     success = create(target: target, digest: digest, content: content, source_map: source_map)
 
     count = StylesheetCache.count
@@ -25,6 +30,10 @@ class StylesheetCache < ActiveRecord::Base
     success
   rescue ActiveRecord::RecordNotUnique
     false
+  ensure
+    if Rails.env.development? && old_logger
+      ActiveRecord::Base.logger = old_logger
+    end
   end
 
 end

spec/models/stylesheet_cache_spec.rb

@@ -15,10 +15,10 @@ describe StylesheetCache do
     end
 
     it "does nothing if digest is set and already exists" do
-      StylesheetCache.destroy_all
+      StylesheetCache.delete_all
 
-      StylesheetCache.add("a", "b", "c", "map")
+      expect(StylesheetCache.add("a", "b", "c", "map")).to be_present
-      StylesheetCache.add("a", "b", "cc", "map")
+      expect(StylesheetCache.add("a", "b", "cc", "map")).to eq(false)
 
       expect(StylesheetCache.count).to eq 1
       expect(StylesheetCache.first.content).to eq "c"