From 2e0350ee742c178ee22d6987c2da2755f72d9123 Mon Sep 17 00:00:00 2001
From: Arpit Jalan <arpit@techapj.com>
Date: Wed, 11 May 2016 15:23:54 +0530
Subject: [PATCH] FEATURE: new search filter - #category-slug

---
 lib/search.rb                  | 18 ++++++++++++++++++
 spec/components/search_spec.rb | 19 ++++++++++++++++++-
 2 files changed, 36 insertions(+), 1 deletion(-)

diff --git a/lib/search.rb b/lib/search.rb
index d66bfa939..17547d9fa 100644
--- a/lib/search.rb
+++ b/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
diff --git a/spec/components/search_spec.rb b/spec/components/search_spec.rb
index 7a0e58064..af371932f 100644
--- a/spec/components/search_spec.rb
+++ b/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
-