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only show measures with 10 or more responses

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This commit is contained in:
Jared Cosulich 2018-03-03 09:21:46 -05:00
parent 18e831702c
commit 0490249dbf
1 changed files with 6 additions and 2 deletions
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8
app/models/school_category.rb
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@ -1,5 +1,7 @@
class SchoolCategory < ApplicationRecord
MIN_RESPONSE_COUNT = 10
belongs_to :school
belongs_to :category
@ -9,7 +11,7 @@ class SchoolCategory < ApplicationRecord
scope :for, -> (school, category) { where(school: school).where(category: category) }
scope :for_parent_category, -> (school, category=nil) { where(school: school).joins(:category).merge(Category.for_parent(category)) }
scope :valid, -> { where("answer_index_total > 10 or zscore is not null") }
scope :valid, -> { where("response_count > #{MIN_RESPONSE_COUNT} or zscore is not null") }
def answer_index_average
answer_index_total.to_f / response_count.to_f
@ -29,7 +31,9 @@ class SchoolCategory < ApplicationRecord
answer_index_total: attempt_data.answer_index_total || 0,
zscore: attempt_data.answer_index_total.nil? ?
zscore :
attempt_data.answer_index_total.to_f / attempt_data.response_count.to_f - 3.to_f
(attempt_data.response_count > MIN_RESPONSE_COUNT ?
(attempt_data.answer_index_total.to_f / attempt_data.response_count.to_f - 3.to_f) :
nil)
}
end