CreateMatcherProjectPipeline creates a pipeline with a match and project.

CreatePermissionFilter creates a filter bson that matches the owner and it's groups.

CreatePermissionMatcher creates a matcher that checks for permissions.

CreatePermissionProjectPipeline creates a pipeline with permission for a specific user and model project.

GetColCtx returns the collection for the specified model and initializes a timeout context with passed duration.

ManageField executs a specific bson on a filter e.x.: filter := bson.M{"_id": bson.M{"$eq": objID}} value := bson.M{"$set": bson.M{"fieldint": 42}} 0 -> ok | 1 -> error when updating | 2 -> nothing modified in DB.

DBConnection holds information about the collection and the context.