# 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 iwhere(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
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Yorick Peterse authored
By using a JOIN we can remove the need for using 2 separate queries to find a project by its namespace. Combined with an index (only needed for PostgreSQL) this reduces the query time from ~245 ms (~520 ms for the first call) down to roughly 10 ms (~15 ms for the first call).
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