From 3bd8b55fce633c469a49d9b0afd9750e9e07390c Mon Sep 17 00:00:00 2001
From: Arpit Jalan <arpit@techapj.com>
Date: Sat, 20 Aug 2016 13:18:58 +0530
Subject: [PATCH] FEATURE: new rake task to change post ownership for a
 specific user

---
 lib/tasks/users.rake | 39 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 39 insertions(+)
 create mode 100644 lib/tasks/users.rake

diff --git a/lib/tasks/users.rake b/lib/tasks/users.rake
new file mode 100644
index 000000000..7772bba66
--- /dev/null
+++ b/lib/tasks/users.rake
@@ -0,0 +1,39 @@
+desc "Change topic/post ownership of all the topics/posts by a specific user (without creating new revision)"
+task "users:change_post_ownership", [:old_username, :new_username, :archetype] => [:environment] do |_,args|
+  old_username = args[:old_username]
+  new_username = args[:new_username]
+  archetype = args[:archetype]
+  archetype = archetype.downcase if archetype
+  if !old_username || !new_username
+    puts "ERROR: Expecting rake posts:change_post_ownership[old_username,new_username,archetype]"
+    exit 1
+  end
+  old_user = User.find_by(username_lower: old_username.downcase)
+  if !old_user
+    puts "ERROR: User with username #{old_username} does not exist"
+    exit 1
+  end
+  new_user = User.find_by(username_lower: new_username.downcase)
+  if !new_user
+    puts "ERROR: User with username #{new_username} does not exist"
+    exit 1
+  end
+
+  if archetype == "private"
+    posts = Post.private_posts.where(user_id: old_user.id)
+  elsif archetype == "public" || !archetype
+    posts = Post.public_posts.where(user_id: old_user.id)
+  else
+    puts "ERROR: Expecting rake posts:change_post_ownership[old_username,new_username,archetype] where archetype is public or private"
+    exit 1
+  end
+
+  puts "Changing post ownership"
+  i = 0
+  posts.each do |p|
+    PostOwnerChanger.new(post_ids: [p.id], topic_id: p.topic.id, new_owner: User.find_by(username_lower: new_user.username_lower), acting_user: User.find_by(username_lower: "system"), skip_revision: true).change_owner!
+    putc "."
+    i += 1
+  end
+  puts "", "#{i} posts ownership changed!", ""
+end