57 lines
1.6 KiB
Ruby
57 lines
1.6 KiB
Ruby
module Labels
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class FindOrCreateService
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def initialize(current_user, parent, params = {})
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@current_user = current_user
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@parent = parent
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@available_labels = params.delete(:available_labels)
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@params = params.dup.with_indifferent_access
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end
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def execute(skip_authorization: false)
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@skip_authorization = skip_authorization
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find_or_create_label
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end
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private
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attr_reader :current_user, :parent, :params, :skip_authorization
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def available_labels
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@available_labels ||= LabelsFinder.new(
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current_user,
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"#{parent_type}_id".to_sym => parent.id,
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include_ancestor_groups: include_ancestor_groups?,
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only_group_labels: parent_is_group?
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).execute(skip_authorization: skip_authorization)
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end
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# Only creates the label if current_user can do so, if the label does not exist
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# and the user can not create the label, nil is returned
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def find_or_create_label
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new_label = available_labels.find_by(title: title)
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if new_label.nil? && (skip_authorization || Ability.allowed?(current_user, :admin_label, parent))
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create_params = params.except(:include_ancestor_groups)
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new_label = Labels::CreateService.new(create_params).execute(parent_type.to_sym => parent)
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end
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new_label
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end
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def title
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params[:title] || params[:name]
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end
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def parent_type
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parent.model_name.param_key
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end
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def parent_is_group?
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parent_type == "group"
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end
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def include_ancestor_groups?
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params[:include_ancestor_groups] == true
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end
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end
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end
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