2017-03-07 06:58:14 -05:00
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class MembersFinder
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attr_reader :project, :current_user, :group
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def initialize(project, current_user)
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@project = project
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@current_user = current_user
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@group = project.group
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end
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def execute
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project_members = project.project_members
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project_members = project_members.non_invite unless can?(current_user, :admin_project, project)
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if group
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group_members = GroupMembersFinder.new(group).execute
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group_members = group_members.non_invite unless can?(current_user, :admin_group, group)
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2018-02-16 15:43:09 -05:00
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union = Gitlab::SQL::Union.new([project_members, group_members], remove_duplicates: false)
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2017-03-07 06:58:14 -05:00
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2018-02-16 15:43:09 -05:00
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# We're interested in a list of members without duplicates by user_id.
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# We prefer project members over group members, project members should go first.
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#
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# We could have used a DISTINCT ON here, but MySQL does not support this.
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sql = <<-SQL
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SELECT member_numbered.*
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FROM (
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SELECT
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member_union.*,
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ROW_NUMBER() OVER (
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PARTITION BY user_id ORDER BY CASE WHEN type = 'ProjectMember' THEN 1 WHEN type = 'GroupMember' THEN 2 ELSE 3 END
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) AS row_number
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FROM (#{union.to_sql}) AS member_union
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) AS member_numbered
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WHERE row_number = 1
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SQL
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Member.from("(#{sql}) AS #{Member.table_name}")
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else
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project_members
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end
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2016-12-23 17:29:00 -05:00
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end
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2017-03-07 06:58:14 -05:00
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def can?(*args)
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Ability.allowed?(*args)
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2016-12-23 17:29:00 -05:00
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end
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end
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