Minore code-style fixes

Author: vsizov

app/models/group.rb

@@ -23,7 +23,7 @@ class Group < ActiveRecord::Base
   delegate :name, to: :owner, allow_nil: true, prefix: true
 
   def self.search query
-    where("name like :query OR code like :query", query: "%#{query}%")
+    where("name LIKE :query OR code LIKE :query", query: "%#{query}%")
   end
 
   def to_param

app/models/project.rb

@@ -38,7 +38,7 @@ def self.active
   end
 
   def self.search query
-    where("name like :query OR code like :query OR path like :query", query: "%#{query}%")
+    where("name LIKE :query OR code LIKE :query OR path LIKE :query", query: "%#{query}%")
   end
 
   def self.create_by_user(params, user)
@@ -127,7 +127,7 @@ def commit_notes(commit)
   end
 
   def commit_line_notes(commit)
-    notes.where(noteable_id: commit.id, noteable_type: "Commit").where("line_code is not null")
+    notes.where(noteable_id: commit.id, noteable_type: "Commit").where("line_code IS NOT NULL")
   end
 
   def public?

app/models/user.rb

@@ -73,7 +73,7 @@ def self.gitlab_auth
   end
 
   def self.search query
-    where("name like :query or email like :query", query: "%#{query}%")
+    where("name LIKE :query OR email LIKE :query", query: "%#{query}%")
   end
 end
 

app/roles/issue_commonality.rb

@@ -19,7 +19,7 @@ module IssueCommonality
     scope :opened, where(closed: false)
     scope :closed, where(closed: true)
     scope :of_group, ->(group) { where(project_id: group.project_ids) }
-    scope :assigned, lambda { |u| where(assignee_id: u.id)}
+    scope :assigned, ->(u) { where(assignee_id: u.id)}
 
     delegate :name,
              :email,