Expose Project's & ProjectSnippet's VisibilityLevel as String

Instead of exposing the VisibilityLevel as Integer, expose it as
String `visibility` for Project and ProjectSnippet.

Filter queries also accept the `visibility` as String instead of
`visibility_level` as Integer.

Also remove the `public` boolean.

9 files changed, 85 insertions, 93 deletions

diff --git a/app/models/project.rb b/app/models/project.rb
index 0c2494d3c32..472736c48c4 100644
--- a/app/models/project.rb
+++ b/app/models/project.rb
@@ -334,7 +334,7 @@ class Project < ActiveRecord::Base
     end
 
     def search_by_visibility(level)
-      where(visibility_level: Gitlab::VisibilityLevel.const_get(level.upcase))
+      where(visibility_level: Gitlab::VisibilityLevel.string_options[level])
     end
 
     def search_by_title(query)
diff --git a/doc/api/project_snippets.md b/doc/api/project_snippets.md
index 404876f6237..4f6f561b83e 100644
--- a/doc/api/project_snippets.md
+++ b/doc/api/project_snippets.md
@@ -3,15 +3,15 @@
 ### Snippet visibility level
 
 Snippets in GitLab can be either private, internal or public.
-You can set it with the `visibility_level` field in the snippet.
+You can set it with the `visibility` field in the snippet.
 
 Constants for snippet visibility levels are:
 
-| Visibility | visibility_level | Description |
-| ---------- | ---------------- | ----------- |
-| Private    | `0`  | The snippet is visible only the snippet creator |
-| Internal   | `10` | The snippet is visible for any logged in user |
-| Public     | `20` | The snippet can be accessed without any authentication |
+| visibility | Description |
+| ---------- | ----------- |
+| `private`  | The snippet is visible only the snippet creator |
+| `internal` | The snippet is visible for any logged in user |
+| `public`   | The snippet can be accessed without any authentication |
 
 ## List snippets
 
@@ -71,7 +71,7 @@ Parameters:
 - `title` (required) - The title of a snippet
 - `file_name` (required) - The name of a snippet file
 - `code` (required) - The content of a snippet
-- `visibility_level` (required) - The snippet's visibility
+- `visibility` (required) - The snippet's visibility
 
 ## Update snippet
 
@@ -88,7 +88,7 @@ Parameters:
 - `title` (optional) - The title of a snippet
 - `file_name` (optional) - The name of a snippet file
 - `code` (optional) - The content of a snippet
-- `visibility_level` (optional) - The snippet's visibility
+- `visibility` (optional) - The snippet's visibility
 
 ## Delete snippet
 
diff --git a/doc/api/projects.md b/doc/api/projects.md
index a6a7c380b72..f6eabc1f663 100644
--- a/doc/api/projects.md
+++ b/doc/api/projects.md
@@ -4,17 +4,17 @@
 ### Project visibility level
 
 Project in GitLab has be either private, internal or public.
-You can determine it by `visibility_level` field in project.
+You can determine it by `visibility` field in project.
 
 Constants for project visibility levels are next:
 
-* Private. `visibility_level` is `0`.
+* `private`:
   Project access must be granted explicitly for each user.
 
-* Internal. `visibility_level` is `10`.
+* `internal`:
   The project can be cloned by any logged in user.
 
-* Public. `visibility_level` is `20`.
+* `public`:
   The project can be cloned without any authentication.
 
 
@@ -45,8 +45,7 @@ Parameters:
     "id": 4,
     "description": null,
     "default_branch": "master",
-    "public": false,
-    "visibility_level": 0,
+    "visibility": "private",
     "ssh_url_to_repo": "git@example.com:diaspora/diaspora-client.git",
     "http_url_to_repo": "http://example.com/diaspora/diaspora-client.git",
     "web_url": "http://example.com/diaspora/diaspora-client",
@@ -96,8 +95,7 @@ Parameters:
     "id": 6,
     "description": null,
     "default_branch": "master",
-    "public": false,
-    "visibility_level": 0,
+    "visibility": "private",
     "ssh_url_to_repo": "git@example.com:brightbox/puppet.git",
     "http_url_to_repo": "http://example.com/brightbox/puppet.git",
     "web_url": "http://example.com/brightbox/puppet",
@@ -177,8 +175,7 @@ Parameters:
   "id": 3,
   "description": null,
   "default_branch": "master",
-  "public": false,
-  "visibility_level": 0,
+  "visibility": "private",
   "ssh_url_to_repo": "git@example.com:diaspora/diaspora-project-site.git",
   "http_url_to_repo": "http://example.com/diaspora/diaspora-project-site.git",
   "web_url": "http://example.com/diaspora/diaspora-project-site",
@@ -446,7 +443,7 @@ Parameters:
 | `snippets_enabled` | boolean | no | Enable snippets for this project |
 | `container_registry_enabled` | boolean | no | Enable container registry for this project |
 | `shared_runners_enabled` | boolean | no | Enable shared runners for this project |
-| `visibility_level` | integer | no | See [project visibility level](#project-visibility-level) |
+| `visibility` | String | no | See [project visibility level](#project-visibility-level) |
 | `import_url` | string | no | URL to import repository from |
 | `public_builds` | boolean | no | If `true`, builds can be viewed by non-project-members |
 | `only_allow_merge_if_pipeline_succeeds` | boolean | no | Set whether merge requests can only be merged with successful builds |
@@ -479,7 +476,7 @@ Parameters:
 | `snippets_enabled` | boolean | no | Enable snippets for this project |
 | `container_registry_enabled` | boolean | no | Enable container registry for this project |
 | `shared_runners_enabled` | boolean | no | Enable shared runners for this project |
-| `visibility_level` | integer | no | See [project visibility level](#project-visibility-level) |
+| `visibility` | string | no | See [project visibility level](#project-visibility-level) |
 | `import_url` | string | no | URL to import repository from |
 | `public_builds` | boolean | no | If `true`, builds can be viewed by non-project-members |
 | `only_allow_merge_if_pipeline_succeeds` | boolean | no | Set whether merge requests can only be merged with successful builds |
@@ -511,7 +508,7 @@ Parameters:
 | `snippets_enabled` | boolean | no | Enable snippets for this project |
 | `container_registry_enabled` | boolean | no | Enable container registry for this project |
 | `shared_runners_enabled` | boolean | no | Enable shared runners for this project |
-| `visibility_level` | integer | no | See [project visibility level](#project-visibility-level) |
+| `visibility` | string | no | See [project visibility level](#project-visibility-level) |
 | `import_url` | string | no | URL to import repository from |
 | `public_builds` | boolean | no | If `true`, builds can be viewed by non-project-members |
 | `only_allow_merge_if_pipeline_succeeds` | boolean | no | Set whether merge requests can only be merged with successful builds |
@@ -559,8 +556,7 @@ Example response:
   "id": 3,
   "description": null,
   "default_branch": "master",
-  "public": false,
-  "visibility_level": 10,
+  "visibility": "internal",
   "ssh_url_to_repo": "git@example.com:diaspora/diaspora-project-site.git",
   "http_url_to_repo": "http://example.com/diaspora/diaspora-project-site.git",
   "web_url": "http://example.com/diaspora/diaspora-project-site",
@@ -625,8 +621,7 @@ Example response:
   "id": 3,
   "description": null,
   "default_branch": "master",
-  "public": false,
-  "visibility_level": 10,
+  "visibility": "internal",
   "ssh_url_to_repo": "git@example.com:diaspora/diaspora-project-site.git",
   "http_url_to_repo": "http://example.com/diaspora/diaspora-project-site.git",
   "web_url": "http://example.com/diaspora/diaspora-project-site",
@@ -692,8 +687,7 @@ Example response:
   "id": 3,
   "description": null,
   "default_branch": "master",
-  "public": false,
-  "visibility_level": 0,
+  "visibility": "private",
   "ssh_url_to_repo": "git@example.com:diaspora/diaspora-project-site.git",
   "http_url_to_repo": "http://example.com/diaspora/diaspora-project-site.git",
   "web_url": "http://example.com/diaspora/diaspora-project-site",
@@ -775,8 +769,7 @@ Example response:
   "id": 3,
   "description": null,
   "default_branch": "master",
-  "public": false,
-  "visibility_level": 0,
+  "visibility": "private",
   "ssh_url_to_repo": "git@example.com:diaspora/diaspora-project-site.git",
   "http_url_to_repo": "http://example.com/diaspora/diaspora-project-site.git",
   "web_url": "http://example.com/diaspora/diaspora-project-site",
diff --git a/lib/api/entities.rb b/lib/api/entities.rb
index 9dccaff369e..bcdd0573e57 100644
--- a/lib/api/entities.rb
+++ b/lib/api/entities.rb
@@ -69,9 +69,9 @@ module API
 
     class Project < Grape::Entity
       expose :id, :description, :default_branch, :tag_list
-      expose :public?, as: :public
       expose :archived?, as: :archived
-      expose :visibility_level, :ssh_url_to_repo, :http_url_to_repo, :web_url
+      expose :ssh_url_to_repo, :http_url_to_repo, :web_url
+      expose(:visibility) { |project, _options| Gitlab::VisibilityLevel.string_level(project.visibility_level) }
       expose :owner, using: Entities::UserBasic, unless: ->(project, options) { project.group }
       expose :name, :name_with_namespace
       expose :path, :path_with_namespace
diff --git a/lib/api/helpers.rb b/lib/api/helpers.rb
index 72d2b320077..7a39c640c5a 100644
--- a/lib/api/helpers.rb
+++ b/lib/api/helpers.rb
@@ -268,6 +268,14 @@ module API
       projects.reorder(params[:order_by] => params[:sort])
     end
 
+    def map_visibility_level(attrs)
+      visibility = attrs.delete(:visibility)
+      if visibility
+        attrs[:visibility_level] = Gitlab::VisibilityLevel.string_options[visibility]
+      end
+      attrs
+    end
+
     # file helpers
 
     def uploaded_file(field, uploads_path)
diff --git a/lib/api/project_snippets.rb b/lib/api/project_snippets.rb
index 2a1cce73f3f..31919a6270d 100644
--- a/lib/api/project_snippets.rb
+++ b/lib/api/project_snippets.rb
@@ -50,15 +50,13 @@ module API
         requires :title, type: String, desc: 'The title of the snippet'
         requires :file_name, type: String, desc: 'The file name of the snippet'
         requires :code, type: String, desc: 'The content of the snippet'
-        requires :visibility_level, type: Integer,
-                                    values: [Gitlab::VisibilityLevel::PRIVATE,
-                                             Gitlab::VisibilityLevel::INTERNAL,
-                                             Gitlab::VisibilityLevel::PUBLIC],
-                                    desc: 'The visibility level of the snippet'
+        requires :visibility, type: String,
+                              values: Gitlab::VisibilityLevel.string_values,
+                              desc: 'The visibility of the snippet'
       end
       post ":id/snippets" do
         authorize! :create_project_snippet, user_project
-        snippet_params = declared_params.merge(request: request, api: true)
+        snippet_params = map_visibility_level(declared_params).merge(request: request, api: true)
         snippet_params[:content] = snippet_params.delete(:code)
 
         snippet = CreateSnippetService.new(user_project, current_user, snippet_params).execute
@@ -80,11 +78,9 @@ module API
         optional :title, type: String, desc: 'The title of the snippet'
         optional :file_name, type: String, desc: 'The file name of the snippet'
         optional :code, type: String, desc: 'The content of the snippet'
-        optional :visibility_level, type: Integer,
-                                    values: [Gitlab::VisibilityLevel::PRIVATE,
-                                             Gitlab::VisibilityLevel::INTERNAL,
-                                             Gitlab::VisibilityLevel::PUBLIC],
-                                    desc: 'The visibility level of the snippet'
+        optional :visibility, type: String,
+                              values: Gitlab::VisibilityLevel.string_values,
+                              desc: 'The visibility of the snippet'
         at_least_one_of :title, :file_name, :code, :visibility_level
       end
       put ":id/snippets/:snippet_id" do
@@ -93,7 +89,7 @@ module API
 
         authorize! :update_project_snippet, snippet
 
-        snippet_params = declared_params(include_missing: false)
+        snippet_params = map_visibility_level(declared_params(include_missing: false))
           .merge(request: request, api: true)
 
         snippet_params[:content] = snippet_params.delete(:code) if snippet_params[:code].present?
diff --git a/lib/api/projects.rb b/lib/api/projects.rb
index 996404e0e49..743dcac41f9 100644
--- a/lib/api/projects.rb
+++ b/lib/api/projects.rb
@@ -16,11 +16,7 @@ module API
         optional :shared_runners_enabled, type: Boolean, desc: 'Flag indication if shared runners are enabled for that project'
         optional :container_registry_enabled, type: Boolean, desc: 'Flag indication if the container registry is enabled for that project'
         optional :lfs_enabled, type: Boolean, desc: 'Flag indication if Git LFS is enabled for that project'
-        optional :visibility_level, type: Integer, values: [
-          Gitlab::VisibilityLevel::PRIVATE,
-          Gitlab::VisibilityLevel::INTERNAL,
-          Gitlab::VisibilityLevel::PUBLIC
-        ], desc: 'Create a public project. The same as visibility_level = 20.'
+        optional :visibility, type: String, values: Gitlab::VisibilityLevel.string_values, desc: 'The visibility of the project.'
         optional :public_builds, type: Boolean, desc: 'Perform public builds'
         optional :request_access_enabled, type: Boolean, desc: 'Allow users to request member access'
         optional :only_allow_merge_if_pipeline_succeeds, type: Boolean, desc: 'Only allow to merge if builds succeed'
@@ -48,7 +44,7 @@ module API
 
         params :filter_params do
           optional :archived, type: Boolean, default: false, desc: 'Limit by archived status'
-          optional :visibility, type: String, values: %w[public internal private],
+          optional :visibility, type: String, values: Gitlab::VisibilityLevel.string_values,
                                 desc: 'Limit by visibility'
           optional :search, type: String, desc: 'Return list of authorized projects matching the search criteria'
           optional :owned, type: Boolean, default: false, desc: 'Limit by owned by authenticated user'
@@ -101,7 +97,7 @@ module API
         use :create_params
       end
       post do
-        attrs = declared_params(include_missing: false)
+        attrs = map_visibility_level(declared_params(include_missing: false))
         project = ::Projects::CreateService.new(current_user, attrs).execute
 
         if project.saved?
@@ -130,7 +126,7 @@ module API
         user = User.find_by(id: params.delete(:user_id))
         not_found!('User') unless user
 
-        attrs = declared_params(include_missing: false)
+        attrs = map_visibility_level(declared_params(include_missing: false))
         project = ::Projects::CreateService.new(user, attrs).execute
 
         if project.saved?
@@ -208,14 +204,14 @@ module API
         at_least_one_of :name, :description, :issues_enabled, :merge_requests_enabled,
                         :wiki_enabled, :builds_enabled, :snippets_enabled,
                         :shared_runners_enabled, :container_registry_enabled,
-                        :lfs_enabled, :visibility_level, :public_builds,
+                        :lfs_enabled, :visibility, :public_builds,
                         :request_access_enabled, :only_allow_merge_if_pipeline_succeeds,
                         :only_allow_merge_if_all_discussions_are_resolved, :path,
                         :default_branch
       end
       put ':id' do
         authorize_admin_project
-        attrs = declared_params(include_missing: false)
+        attrs = map_visibility_level(declared_params(include_missing: false))
         authorize! :rename_project, user_project if attrs[:name].present?
         authorize! :change_visibility_level, user_project if attrs[:visibility_level].present?
 
diff --git a/spec/requests/api/project_snippets_spec.rb b/spec/requests/api/project_snippets_spec.rb
index 2c4602faf2c..9e88c19b0bc 100644
--- a/spec/requests/api/project_snippets_spec.rb
+++ b/spec/requests/api/project_snippets_spec.rb
@@ -44,7 +44,7 @@ describe API::ProjectSnippets, api: true do
         title: 'Test Title',
         file_name: 'test.rb',
         code: 'puts "hello world"',
-        visibility_level: Snippet::PUBLIC
+        visibility: 'public'
       }
     end
 
@@ -56,7 +56,7 @@ describe API::ProjectSnippets, api: true do
       expect(snippet.content).to eq(params[:code])
       expect(snippet.title).to eq(params[:title])
       expect(snippet.file_name).to eq(params[:file_name])
-      expect(snippet.visibility_level).to eq(params[:visibility_level])
+      expect(snippet.visibility_level).to eq(Snippet::PUBLIC)
     end
 
     it 'returns 400 for missing parameters' do
@@ -80,14 +80,14 @@ describe API::ProjectSnippets, api: true do
 
       context 'when the snippet is private' do
         it 'creates the snippet' do
-          expect { create_snippet(project, visibility_level: Snippet::PRIVATE) }.
+          expect { create_snippet(project, visibility: 'private') }.
             to change { Snippet.count }.by(1)
         end
       end
 
       context 'when the snippet is public' do
-        it 'rejects the shippet' do
-          expect { create_snippet(project, visibility_level: Snippet::PUBLIC) }.
+        it 'rejects the snippet' do
+          expect { create_snippet(project, visibility: 'public') }.
             not_to change { Snippet.count }
 
           expect(response).to have_http_status(400)
@@ -95,7 +95,7 @@ describe API::ProjectSnippets, api: true do
         end
 
         it 'creates a spam log' do
-          expect { create_snippet(project, visibility_level: Snippet::PUBLIC) }.
+          expect { create_snippet(project, visibility: 'public') }.
             to change { SpamLog.count }.by(1)
         end
       end
@@ -165,7 +165,7 @@ describe API::ProjectSnippets, api: true do
         let(:visibility_level) { Snippet::PRIVATE }
 
         it 'rejects the snippet' do
-          expect { update_snippet(title: 'Foo', visibility_level: Snippet::PUBLIC) }.
+          expect { update_snippet(title: 'Foo', visibility: 'public') }.
             not_to change { snippet.reload.title }
 
           expect(response).to have_http_status(400)
@@ -173,7 +173,7 @@ describe API::ProjectSnippets, api: true do
         end
 
         it 'creates a spam log' do
-          expect { update_snippet(title: 'Foo', visibility_level: Snippet::PUBLIC) }.
+          expect { update_snippet(title: 'Foo', visibility: 'public') }.
             to change { SpamLog.count }.by(1)
         end
       end
diff --git a/spec/requests/api/projects_spec.rb b/spec/requests/api/projects_spec.rb
index 7268016ee81..2e8b557e9e2 100644
--- a/spec/requests/api/projects_spec.rb
+++ b/spec/requests/api/projects_spec.rb
@@ -340,24 +340,27 @@ describe API::Projects, api: true  do
     end
 
     it 'sets a project as public' do
-      project = attributes_for(:project, :public)
+      project = attributes_for(:project, visibility: 'public')
+
       post api('/projects', user), project
-      expect(json_response['public']).to be_truthy
-      expect(json_response['visibility_level']).to eq(Gitlab::VisibilityLevel::PUBLIC)
+
+      expect(json_response['visibility']).to eq('public')
     end
 
     it 'sets a project as internal' do
-      project = attributes_for(:project, :internal)
+      project = attributes_for(:project, visibility: 'internal')
+
       post api('/projects', user), project
-      expect(json_response['public']).to be_falsey
-      expect(json_response['visibility_level']).to eq(Gitlab::VisibilityLevel::INTERNAL)
+
+      expect(json_response['visibility']).to eq('internal')
     end
 
     it 'sets a project as private' do
-      project = attributes_for(:project, :private)
+      project = attributes_for(:project, visibility: 'private')
+
       post api('/projects', user), project
-      expect(json_response['public']).to be_falsey
-      expect(json_response['visibility_level']).to eq(Gitlab::VisibilityLevel::PRIVATE)
+
+      expect(json_response['visibility']).to eq('private')
     end
 
     it 'sets a project as allowing merge even if build fails' do
@@ -397,7 +400,7 @@ describe API::Projects, api: true  do
     end
 
     context 'when a visibility level is restricted' do
-      let(:project_param) { attributes_for(:project, :public) }
+      let(:project_param) { attributes_for(:project, visibility: 'public') }
 
       before do
         stub_application_setting(restricted_visibility_levels: [Gitlab::VisibilityLevel::PUBLIC])
@@ -415,10 +418,7 @@ describe API::Projects, api: true  do
       it 'allows an admin to override restricted visibility settings' do
         post api('/projects', admin), project_param
 
-        expect(json_response['public']).to be_truthy
-        expect(json_response['visibility_level']).to(
-          eq(Gitlab::VisibilityLevel::PUBLIC)
-        )
+        expect(json_response['visibility']).to eq('public')
       end
     end
   end
@@ -459,28 +459,29 @@ describe API::Projects, api: true  do
     end
 
     it 'sets a project as public' do
-      project = attributes_for(:project, :public)
+      project = attributes_for(:project, visibility: 'public')
+
       post api("/projects/user/#{user.id}", admin), project
 
       expect(response).to have_http_status(201)
-      expect(json_response['public']).to be_truthy
-      expect(json_response['visibility_level']).to eq(Gitlab::VisibilityLevel::PUBLIC)
+      expect(json_response['visibility']).to eq('public')
     end
 
     it 'sets a project as internal' do
-      project = attributes_for(:project, :internal)
+      project = attributes_for(:project, visibility: 'internal')
+
       post api("/projects/user/#{user.id}", admin), project
 
       expect(response).to have_http_status(201)
-      expect(json_response['public']).to be_falsey
-      expect(json_response['visibility_level']).to eq(Gitlab::VisibilityLevel::INTERNAL)
+      expect(json_response['visibility']).to eq('internal')
     end
 
     it 'sets a project as private' do
-      project = attributes_for(:project, :private)
+      project = attributes_for(:project, visibility: 'private')
+
       post api("/projects/user/#{user.id}", admin), project
-      expect(json_response['public']).to be_falsey
-      expect(json_response['visibility_level']).to eq(Gitlab::VisibilityLevel::PRIVATE)
+
+      expect(json_response['visibility']).to eq('private')
     end
 
     it 'sets a project as allowing merge even if build fails' do
@@ -556,9 +557,8 @@ describe API::Projects, api: true  do
         expect(json_response['description']).to eq(project.description)
         expect(json_response['default_branch']).to eq(project.default_branch)
         expect(json_response['tag_list']).to be_an Array
-        expect(json_response['public']).to be_falsey
         expect(json_response['archived']).to be_falsey
-        expect(json_response['visibility_level']).to be_present
+        expect(json_response['visibility']).to be_present
         expect(json_response['ssh_url_to_repo']).to be_present
         expect(json_response['http_url_to_repo']).to be_present
         expect(json_response['web_url']).to be_present
@@ -812,8 +812,7 @@ describe API::Projects, api: true  do
   describe 'POST /projects/:id/snippets' do
     it 'creates a new project snippet' do
       post api("/projects/#{project.id}/snippets", user),
-        title: 'api test', file_name: 'sample.rb', code: 'test',
-        visibility_level: Gitlab::VisibilityLevel::PRIVATE
+        title: 'api test', file_name: 'sample.rb', code: 'test', visibility: 'private'
       expect(response).to have_http_status(201)
       expect(json_response['title']).to eq('api test')
     end
@@ -1065,7 +1064,7 @@ describe API::Projects, api: true  do
       end
 
       it 'updates visibility_level' do
-        project_param = { visibility_level: Gitlab::VisibilityLevel::PUBLIC }
+        project_param = { visibility: 'public' }
         put api("/projects/#{project3.id}", user), project_param
         expect(response).to have_http_status(200)
         project_param.each_pair do |k, v|
@@ -1075,13 +1074,13 @@ describe API::Projects, api: true  do
 
       it 'updates visibility_level from public to private' do
         project3.update_attributes({ visibility_level: Gitlab::VisibilityLevel::PUBLIC })
-        project_param = { visibility_level: Gitlab::VisibilityLevel::PRIVATE }
+        project_param = { visibility: 'private' }
         put api("/projects/#{project3.id}", user), project_param
         expect(response).to have_http_status(200)
         project_param.each_pair do |k, v|
           expect(json_response[k.to_s]).to eq(v)
         end
-        expect(json_response['visibility_level']).to eq(Gitlab::VisibilityLevel::PRIVATE)
+        expect(json_response['visibility']).to eq('private')
       end
 
       it 'does not update name to existing name' do
@@ -1148,7 +1147,7 @@ describe API::Projects, api: true  do
       end
 
       it 'does not update visibility_level' do
-        project_param = { visibility_level: Gitlab::VisibilityLevel::PUBLIC }
+        project_param = { visibility: 'public' }
         put api("/projects/#{project3.id}", user4), project_param
         expect(response).to have_http_status(403)
       end