39 lines
1.2 KiB
Ruby
39 lines
1.2 KiB
Ruby
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#
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# Copyright (C) 2015 Instructure, Inc.
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#
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# This file is part of Canvas.
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#
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# Canvas is free software: you can redistribute it and/or modify it under
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# the terms of the GNU Affero General Public License as published by the Free
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# Software Foundation, version 3 of the License.
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#
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# Canvas is distributed in the hope that it will be useful, but WITHOUT ANY
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# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
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# A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
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# details.
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#
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# You should have received a copy of the GNU Affero General Public License along
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# with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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# Filters added to this controller apply to all controllers in the application.
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# Likewise, all the methods added will be available for all controllers.
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module Lti
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class VariableExpansion
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attr_reader :name, :permission_groups
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def initialize(name, permission_groups, proc, guard = -> {true})
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@name = name
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@permission_groups = permission_groups
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@proc = proc
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@guard = guard
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end
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def expand(expander)
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expander.instance_exec(&@guard) ? expander.instance_exec(&@proc) : "$#{name}"
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end
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end
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end
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