{"action":"created","comment":{"url":"https://api.github.com/repos/alphagov/whitehall/pulls/comments/28511995","id":28511995,"diff_hunk":"@@ -20,4 +22,53 @@ def self.on_date(date)\n   def current?\n     self == Government.current\n   end\n+\n+  def overlaps?(other)\n+    !before?(other) && !after?(other)\n+  end\n+\n+  def ended?\n+    end_date.present?\n+  end\n+\n+private\n+\n+  def before?(other)\n+    starts_before?(other) && ends_before?(other)\n+  end\n+\n+  def after?(other)\n+    starts_after?(other) && ends_after?(other)\n+  end\n+\n+  def starts_before?(other)\n+    start_date < other.start_date\n+  end\n+\n+  def ends_before?(other)\n+    self.ended? && end_date <= other.start_date\n+  end\n+\n+  def starts_after?(other)\n+    other.ended? && start_date >= other.end_date\n+  end\n+\n+  def ends_after?(other)\n+    return true unless self.ended?","path":"app/models/government.rb","position":45,"original_position":45,"commit_id":"c245b9d40adacfba8242e4e9b595537fade80adb","original_commit_id":"c245b9d40adacfba8242e4e9b595537fade80adb","user":{"login":"tekin","id":3687,"avatar_url":"https://avatars.githubusercontent.com/u/3687?v=3","gravatar_id":"","url":"https://api.github.com/users/tekin","html_url":"https://github.com/tekin","followers_url":"https://api.github.com/users/tekin/followers","following_url":"https://api.github.com/users/tekin/following{/other_user}","gists_url":"https://api.github.com/users/tekin/gists{/gist_id}","starred_url":"https://api.github.com/users/tekin/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/tekin/subscriptions","organizations_url":"https://api.github.com/users/tekin/orgs","repos_url":"https://api.github.com/users/tekin/repos","events_url":"https://api.github.com/users/tekin/events{/privacy}","received_events_url":"https://api.github.com/users/tekin/received_events","type":"User","site_admin":false},"body":"Sorry, ignore me, read the `unless` as an `if`...","created_at":"2015-04-16T14:05:44Z","updated_at":"2015-04-16T14:05:44Z","html_url":"https://github.com/alphagov/whitehall/pull/2087#discussion_r28511995","pull_request_url":"https://api.github.com/repos/alphagov/whitehall/pulls/2087","_links":{"self":{"href":"https://api.github.com/repos/alphagov/whitehall/pulls/comments/28511995"},"html":{"href":"https://github.com/alphagov/whitehall/pull/2087#discussion_r28511995"},"pull_request":{"href":"https://api.github.com/repos/alphagov/whitehall/pulls/2087"}}},"pull_request":{"url":"https://api.github.com/repos/alphagov/whitehall/pulls/2087","id":33044589,"html_url":"https://github.com/alphagov/whitehall/pull/2087","diff_url":"https://github.com/alphagov/whitehall/pull/2087.diff","patch_url":"https://github.com/alphagov/whitehall/pull/2087.patch","issue_url":"https://api.github.com/repos/alphagov/whitehall/issues/2087","number":2087,"state":"open","locked":false,"title":"Add new validations to governments","user":{"login":"elliotcm","id":109225,"avatar_url":"https://avatars.githubusercontent.com/u/109225?v=3","gravatar_id":"","url":"https://api.github.com/users/elliotcm","html_url":"https://github.com/elliotcm","followers_url":"https://api.github.com/users/elliotcm/followers","following_url":"https://api.github.com/users/elliotcm/following{/other_user}","gists_url":"https://api.github.com/users/elliotcm/gists{/gist_id}","starred_url":"https://api.github.com/users/elliotcm/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/elliotcm/subscriptions","organizations_url":"https://api.github.com/users/elliotcm/orgs","repos_url":"https://api.github.com/users/elliotcm/repos","events_url":"https://api.github.com/users/elliotcm/events{/privacy}","received_events_url":"https://api.github.com/users/elliotcm/received_events","type":"User","site_admin":false},"body":"Here's some refinements to the way governments are created and ended following some practice runthroughs.\r\n\r\nhttps://trello.com/c/HiPx97up/136-refine-the-model-for-governments","created_at":"2015-04-10T13:03:06Z","updated_at":"2015-04-16T14:05:44Z","closed_at":null,"merged_at":null,"merge_commit_sha":"735811b0eef288396e7178677ec5436437ad39da","assignee":null,"milestone":null,"commits_url":"https://api.github.com/repos/alphagov/whitehall/pulls/2087/commits","review_comments_url":"https://api.github.com/repos/alphagov/whitehall/pulls/2087/comments","review_comment_url":"https://api.github.com/repos/alphagov/whitehall/pulls/comments{/number}","comments_url":"https://api.github.com/repos/alphagov/whitehall/issues/2087/comments","statuses_url":"https://api.github.com/repos/alphagov/whitehall/statuses/c245b9d40adacfba8242e4e9b595537fade80adb","head":{"label":"alphagov:add-new-validations-to-governments","ref":"add-new-validations-to-governments","sha":"c245b9d40adacfba8242e4e9b595537fade80adb","user":{"login":"alphagov","id":596977,"avatar_url":"https://avatars.githubusercontent.com/u/596977?v=3","gravatar_id":"","url":"https://api.github.com/users/alphagov","html_url":"https://github.com/alphagov","followers_url":"https://api.github.com/users/alphagov/followers","following_url":"https://api.github.com/users/alphagov/following{/other_user}","gists_url":"https://api.github.com/users/alphagov/gists{/gist_id}","starred_url":"https://api.github.com/users/alphagov/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/alphagov/subscriptions","organizations_url":"https://api.github.com/users/alphagov/orgs","repos_url":"https://api.github.com/users/alphagov/repos","events_url":"https://api.github.com/users/alphagov/events{/privacy}","received_events_url":"https://api.github.com/users/alphagov/received_events","type":"Organization","site_admin":false},"repo":{"id":2416064,"name":"whitehall","full_name":"alphagov/whitehall","owner":{"login":"alphagov","id":596977,"avatar_url":"https://avatars.githubusercontent.com/u/596977?v=3","gravatar_id":"","url":"https://api.github.com/users/alphagov","html_url":"https://github.com/alphagov","followers_url":"https://api.github.com/users/alphagov/followers","following_url":"https://api.github.com/users/alphagov/following{/other_user}","gists_url":"https://api.github.com/users/alphagov/gists{/gist_id}","starred_url":"https://api.github.com/users/alphagov/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/alphagov/subscriptions","organizations_url":"https://api.github.com/users/alphagov/orgs","repos_url":"https://api.github.com/users/alphagov/repos","events_url":"https://api.github.com/users/alphagov/events{/privacy}","received_events_url":"https://api.github.com/users/alphagov/received_events","type":"Organization","site_admin":false},"private":false,"html_url":"https://github.com/alphagov/whitehall","description":"Inside 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