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Optimize SurveyResponseAggregator via a join

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[Finishes #179425717]
This commit is contained in:
Alex Basson 2021-09-21 20:39:43 -04:00
parent f5724407f2
commit 18ddfaaaf8
1 changed files with 2 additions and 2 deletions
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4
app/services/survey_response_aggregator.rb
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@ -8,8 +8,8 @@ class SurveyResponseAggregator
def self.score(academic_year:, school:, measure:)
SurveyItemResponse
.where(academic_year: academic_year, school: school)
.filter { |survey_item_response| survey_item_response.survey_item.measure == measure }
.map { |survey_response| survey_response.likert_score }
.joins(:survey_item).where('survey_items.measure_id': measure.id)
.map { |survey_item_response| survey_item_response.likert_score }
.average
end
end