Sunday, February 1, 2015
Dear everyone,
I'd like to ask two questions, how can I optimize my performance of my current model?
I'd like to use the information from translations table as it is (all columns) ....
=> Translation(id: integer, word_id: integer, conversion_id: integer, created_at: datetime, updated_at: datetime, user_id: string, unit_id: integer, last_learned: date, missed: integer, learned: integer)
... and merge it to any translations/conversions children of Word.
My model getter self_with_translations should attach it to all translations/conversions but using join.
Second thing would be to optimize the check for in unit_ids section for only select unit_ids once and not have many selects.
The program is right here: http://open-voc.org
I appreciate any help,
kind regards,
Alex
Code below:
class Word < ActiveRecord::Base
has_and_belongs_to_many :conversions, class_name: "Word",
join_table: "translations",
association_foreign_key: "conversion_id"
def available_units=(unit_ids_as_array)
@available_units = unit_ids_as_array
end
def available_units
@available_units || []
end
def with_enriched_data
#@FIXME join merge instead of calling sep.
meta = Translation.where(word_id: self.id).first
# fix for deleted units, don't deliver them!
self.available_units = Unit.all.map{|u| u.id } # @FIXME Cache or call only one time
unit_id = meta.unit_id if self.available_units.include? meta.unit_id
# enrich with attrs unit_id, ..........
attributes.merge(unit_id: unit_id, missed: meta.missed)
end
def self_with_translations(targetlang_id={})
conversions = self.conversions.where(language_id: targetlang_id).map do |c|
c.with_enriched_data
end
attributes.merge(translations: conversions)
end
end
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