Elastic 5 update. Update mapping to be compatible with ES 5

app/models/concerns/elastic/issues_search.rb

@@ -7,14 +7,14 @@ module Elastic
 
       mappings _parent: { type: 'project' } do
         indexes :id,          type: :integer
-        indexes :iid,         type: :integer, index: :not_analyzed
-        indexes :title,       type: :string,
+        indexes :iid,         type: :integer
+        indexes :title,       type: :text,
                               index_options: 'offsets'
-        indexes :description, type: :string,
+        indexes :description, type: :text,
                               index_options: 'offsets'
         indexes :created_at,  type: :date
         indexes :updated_at,  type: :date
-        indexes :state,       type: :string
+        indexes :state,       type: :text
         indexes :project_id,  type: :integer
         indexes :author_id,   type: :integer
         indexes :assignee_id, type: :integer

app/models/concerns/elastic/merge_requests_search.rb

@@ -8,18 +8,18 @@ module Elastic
       mappings _parent: { type: 'project' } do
         indexes :id,                type: :integer
         indexes :iid,               type: :integer
-        indexes :target_branch,     type: :string,
+        indexes :target_branch,     type: :text,
                                     index_options: 'offsets'
-        indexes :source_branch,     type: :string,
+        indexes :source_branch,     type: :text,
                                     index_options: 'offsets'
-        indexes :title,             type: :string,
+        indexes :title,             type: :text,
                                     index_options: 'offsets'
-        indexes :description,       type: :string,
+        indexes :description,       type: :text,
                                     index_options: 'offsets'
         indexes :created_at,        type: :date
         indexes :updated_at,        type: :date
-        indexes :state,             type: :string
-        indexes :merge_status,      type: :string
+        indexes :state,             type: :text
+        indexes :merge_status,      type: :text
         indexes :source_project_id, type: :integer
         indexes :target_project_id, type: :integer
         indexes :author_id,         type: :integer

app/models/concerns/elastic/milestones_search.rb

@@ -7,9 +7,9 @@ module Elastic
 
       mappings _parent: { type: 'project' } do
         indexes :id,          type: :integer
-        indexes :title,       type: :string,
+        indexes :title,       type: :text,
                               index_options: 'offsets'
-        indexes :description, type: :string,
+        indexes :description, type: :text,
                               index_options: 'offsets'
         indexes :project_id,  type: :integer
         indexes :created_at,  type: :date

app/models/concerns/elastic/notes_search.rb

@@ -7,7 +7,7 @@ module Elastic
 
       mappings _parent: { type: 'project' } do
         indexes :id,          type: :integer
-        indexes :note,        type: :string,
+        indexes :note,        type: :text,
                               index_options: 'offsets'
         indexes :project_id,  type: :integer
         indexes :created_at,  type: :date

app/models/concerns/elastic/projects_search.rb

@@ -7,16 +7,16 @@ module Elastic
 
       mappings do
         indexes :id,                  type: :integer
-        indexes :name,                type: :string,
+        indexes :name,                type: :text,
                                       index_options: 'offsets'
-        indexes :path,                type: :string,
+        indexes :path,                type: :text,
                                       index_options: 'offsets'
-        indexes :name_with_namespace, type: :string,
+        indexes :name_with_namespace, type: :text,
                                       index_options: 'offsets',
                                       analyzer: :my_ngram_analyzer
-        indexes :path_with_namespace, type: :string,
+        indexes :path_with_namespace, type: :text,
                                       index_options: 'offsets'
-        indexes :description,         type: :string,
+        indexes :description,         type: :text,
                                       index_options: 'offsets'
         indexes :namespace_id,        type: :integer
         indexes :created_at,          type: :date

app/models/concerns/elastic/snippets_search.rb

@@ -7,15 +7,15 @@ module Elastic
 
       mappings do
         indexes :id,               type: :integer
-        indexes :title,            type: :string,
+        indexes :title,            type: :text,
                                    index_options: 'offsets'
-        indexes :file_name,        type: :string,
+        indexes :file_name,        type: :text,
                                    index_options: 'offsets'
-        indexes :content,          type: :string,
+        indexes :content,          type: :text,
                                    index_options: 'offsets'
         indexes :created_at,       type: :date
         indexes :updated_at,       type: :date
-        indexes :state,            type: :string
+        indexes :state,            type: :text
         indexes :project_id,       type: :integer
         indexes :author_id,        type: :integer
         indexes :visibility_level, type: :integer