discourse/lib/freedom_patches/ar_result.rb

34 lines
980 B
Ruby

#see: https://github.com/rails/rails/pull/12065
if rails4?
module ActiveRecord
class Result
private
def hash_rows
@hash_rows ||=
begin
# We freeze the strings to prevent them getting duped when
# used as keys in ActiveRecord::Base's @attributes hash
columns = @columns.map { |c| c.dup.freeze }
@rows.map { |row|
# In the past we used Hash[columns.zip(row)]
# though elegant, the verbose way is much more efficient
# both time and memory wise cause it avoids a big array allocation
# this method is called a lot and needs to be micro optimised
hash = {}
index = 0
length = columns.length
while index < length
hash[columns[index]] = row[index]
index += 1
end
hash
}
end
end
end
end
end