70 lines
1.9 KiB
Ruby
70 lines
1.9 KiB
Ruby
#
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# Copyright (C) 2013 - present 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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module SearchTermHelper
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MIN_SEARCH_TERM_LENGTH = 3
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module ClassMethods
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def search_by_attribute(scope, attr, search_term)
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if search_term.present?
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SearchTermHelper.validate_search_term(search_term)
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if scope.respond_to?(:where)
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scope = scope.where(wildcard("#{self.table_name}.#{attr}", search_term))
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else
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scope = scope.select{|item| item.matches_attribute?(attr, search_term)}
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end
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end
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scope
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end
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end
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def self.included(klass)
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klass.extend(ClassMethods)
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end
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class SearchTermTooShortError < ArgumentError
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def skip_error_report?
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true
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end
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def response_status
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:bad_request
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end
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def error_json
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{
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"errors" => [{
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"field" => "search_term",
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"code" => "invalid",
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"message" => "#{SearchTermHelper::MIN_SEARCH_TERM_LENGTH} or more characters is required"
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}]
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}
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end
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end
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def self.valid_search_term?(search_term)
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search_term.is_a?(String) && search_term.length >= MIN_SEARCH_TERM_LENGTH
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end
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def self.validate_search_term(search_term)
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raise SearchTermTooShortError unless valid_search_term?(search_term)
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end
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def matches_attribute?(attr, search_term)
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self[attr].to_s.downcase.include?(search_term.downcase)
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end
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end |