From 1190d0ab3dc7a3025bf55b666f34d1a0b51a8d89 Mon Sep 17 00:00:00 2001 From: Yorick Peterse Date: Wed, 7 Oct 2015 14:03:18 +0200 Subject: Added concern for case-insensitive WHERE queries On PostgreSQL these queries use LOWER(...) to compare columns and values. For MySQL a regular WHERE is performed as MySQL is already case-insensitive. --- app/models/concerns/case_sensitivity.rb | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) create mode 100644 app/models/concerns/case_sensitivity.rb (limited to 'app/models') diff --git a/app/models/concerns/case_sensitivity.rb b/app/models/concerns/case_sensitivity.rb new file mode 100644 index 00000000000..49d350e092b --- /dev/null +++ b/app/models/concerns/case_sensitivity.rb @@ -0,0 +1,28 @@ +# Concern for querying columns with specific case sensitivity handling. +module CaseSensitivity + extend ActiveSupport::Concern + + module ClassMethods + # Queries the given columns regardless of the casing used. + # + # Unlike other ActiveRecord methods this method only operates on a Hash. + def case_insensitive_where(params) + criteria = self + cast_lower = Gitlab::Database.postgresql? + + params.each do |key, value| + column = ActiveRecord::Base.connection.quote_table_name(key) + + if cast_lower + condition = "LOWER(#{column}) = LOWER(:value)" + else + condition = "#{column} = :value" + end + + criteria = criteria.where(condition, value: value) + end + + criteria + end + end +end -- cgit v1.2.1