FEATURE: new search filter - #category-slug

lib/search.rb

@@ -279,6 +279,24 @@ class Search
     end
   end
 
+  advanced_filter(/^\#([a-zA-Z0-9,\-:]+)/) do |posts,match|
+    slug = match.to_s.split(":")
+    if slug[1]
+      # sub category
+      parent_category_id = Category.where(slug: slug[0].downcase, parent_category_id: nil).pluck(:id).first
+      category_id = Category.where(slug: slug[1].downcase, parent_category_id: parent_category_id).pluck(:id).first
+    else
+      # main category
+      category_id = Category.where(slug: slug[0].downcase, parent_category_id: nil).pluck(:id).first
+    end
+
+    if category_id
+      posts.where("topics.category_id = ?", category_id)
+    else
+      posts.where("1 = 0")
+    end
+  end
+
   advanced_filter(/group:(.+)/) do |posts,match|
     group_id = Group.where('name ilike ? OR (id = ? AND id > 0)', match, match.to_i).pluck(:id).first
     if group_id

spec/components/search_spec.rb

@@ -526,6 +526,24 @@ describe Search do
       expect(Search.execute('sam order:latest').posts.map(&:id)).to eq([post2.id, post1.id])
 
     end
+
+    it 'supports category slug' do
+      # main category
+      category = Fabricate(:category, name: 'category 24', slug: 'category-24')
+      topic = Fabricate(:topic, created_at: 3.months.ago, category: category)
+      post = Fabricate(:post, raw: 'hi this is a test 123', topic: topic)
+
+      expect(Search.execute('this is a test #category-24').posts.length).to eq(1)
+      expect(Search.execute('this is a test #category-25').posts.length).to eq(0)
+
+      # sub category
+      sub_category = Fabricate(:category, name: 'sub category', slug: 'sub-category', parent_category_id: category.id)
+      second_topic = Fabricate(:topic, created_at: 3.months.ago, category: sub_category)
+      second_topic_post = Fabricate(:post, raw: 'hi testing again 123', topic: second_topic)
+
+      expect(Search.execute('testing again #category-24:sub-category').posts.length).to eq(1)
+      expect(Search.execute('testing again #sub-category').posts.length).to eq(0)
+    end
   end
 
   it 'can parse complex strings using ts_query helper' do
@@ -566,4 +584,3 @@ describe Search do
   end
 
 end
-