debian-mirror-gitlab/doc/development/licensed_feature_availability.md
2022-01-26 12:08:38 +05:30

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---
stage: Fulfillment
group: License
info: To determine the technical writer assigned to the Stage/Group associated with this page, see https://about.gitlab.com/handbook/engineering/ux/technical-writing/#assignments
---
# Licensed feature availability
As of GitLab 9.4, we've been supporting a simplified version of licensed
feature availability checks via `ee/app/models/license.rb`, both for
on-premise or GitLab.com plans and features.
## Restricting features scoped by namespaces or projects
GitLab.com plans are persisted on user groups and namespaces, therefore, if you're adding a
feature such as [Related issues](../user/project/issues/related_issues.md) or
[Service Desk](../user/project/service_desk.md),
it should be restricted on namespace scope.
1. Add the feature symbol on `EES_FEATURES`, `EEP_FEATURES`, or `EEU_FEATURES` constants in
`ee/app/models/license.rb`. Note that the prefix `EES` signifies Starter, `EEP` signifies
Premium, and `EEU` signifies Ultimate.
1. Check using:
```ruby
project.feature_available?(:feature_symbol)
```
## Restricting global features (instance)
However, for features such as [Geo](../administration/geo/index.md) and
[Database Load Balancing](../administration/postgresql/database_load_balancing.md), which cannot be restricted
to only a subset of projects or namespaces, the check is made directly in
the instance license.
1. Add the feature symbol on `EES_FEATURES`, `EEP_FEATURES` or `EEU_FEATURES` constants in
`ee/app/models/license.rb`.
1. Add the same feature symbol to `GLOBAL_FEATURES`.
1. Check using:
```ruby
License.feature_available?(:feature_symbol)
```
## Restricting frontend features
To restrict frontend features based on the license, use `push_licensed_feature`.
The frontend can then access this via `this.glFeatures`:
```ruby
before_action do
push_licensed_feature(:feature_symbol)
# or by project/namespace
push_licensed_feature(:feature_symbol, project)
end
```