Merge branch 'hotfix-0.36.2'

Hotfix v0.36.2: Fix contribution migrations

**Fixes:**
- Use `#update` to `#update_column` in new migrations to avoid
  validations. Otherwise, the validations will fail because some of the
  columns that are are referenced by the validations will only be added
  in later migrations.

Author: FinnWoelm

CHANGELOG.md

@@ -1,5 +1,12 @@
 # CHANGELOG
 
+## v0.36.2 (Feb 18, 2019)
+
+**Fixes:**
+- Use `#update` to `#update_column` in new migrations to avoid validations.
+  Otherwise, the validations will fail because some of the columns that are
+  are referenced by the validations will only be added in later migrations.
+
 ## v0.36.1 (Feb 18, 2019)
 
 **Fixes:**

db/migrate/20190215234419_add_origin_revision_to_contributions.rb

@@ -1,13 +1,18 @@
 class AddOriginRevisionToContributions < ActiveRecord::Migration[5.2]
-  def change
+  def up
     add_reference :contributions, :origin_revision,
                   foreign_key: { to_table: :vcs_commits }
 
     Contribution.reset_column_information
     Contribution.includes(:project).find_each do |contribution|
-      contribution.update(origin_revision: contribution.project.revisions.last)
+      contribution.update_column(:origin_revision_id,
+                                 contribution.project.revisions.last&.id)
     end
 
     change_column_null :contributions, :origin_revision_id, false
   end
+
+  def down
+    remove_reference :contributions, :origin_revision
+  end
 end

db/migrate/20190217040248_add_accepted_revision_to_contributions.rb

@@ -1,5 +1,5 @@
 class AddAcceptedRevisionToContributions < ActiveRecord::Migration[5.2]
-  def change
+  def up
     add_reference :contributions, :accepted_revision,
                   foreign_key: { to_table: :vcs_commits }
 
@@ -11,7 +11,12 @@ def change
           summary: contribution.description,
           author_id: contribution.creator_id
         )
-      contribution.update(accepted_revision: accepted_revision)
+      contribution.update_column(:accepted_revision_id,
+                                 accepted_revision&.id)
     end
   end
+
+  def down
+    remove_reference :contributions, :accepted_revision
+  end
 end