dirty commit: can't get references to work correctly between any tables

app/models/dashboard/survey_item.rb

@@ -0,0 +1,78 @@
+module Dashboard
+  class SurveyItem < ApplicationRecord
+    belongs_to :dashboard_scale
+
+    has_one :dashboard_measure, through: dashboard_scale
+    has_one :dashboard_subcategory, through: dashboard_measure
+
+    has_many :dashboard_survey_item_responses
+
+    def score(school:, academic_year:)
+      @score ||= Hash.new do |memo, (school, academic_year)|
+        memo[[school, academic_year]] =
+          survey_item_responses.exclude_boston.where(school:, academic_year:).average(:likert_score).to_f
+      end
+      @score[[school, academic_year]]
+    end
+
+    scope :student_survey_items, lambda {
+      where("survey_items.survey_item_id LIKE 's-%'")
+    }
+    scope :standard_survey_items, lambda {
+      where("survey_items.survey_item_id LIKE 's-%-q%'")
+    }
+    scope :teacher_survey_items, lambda {
+      where("survey_items.survey_item_id LIKE 't-%'")
+    }
+    scope :short_form_survey_items, lambda {
+      where(on_short_form: true)
+    }
+    scope :early_education_survey_items, lambda {
+      where("survey_items.survey_item_id LIKE '%-%-es%'")
+    }
+
+    scope :survey_items_for_grade, lambda { |school, academic_year, grade|
+      includes(:survey_item_responses)
+        .where("survey_item_responses.grade": grade,
+               "survey_item_responses.school": school,
+               "survey_item_responses.academic_year": academic_year).distinct
+    }
+
+    scope :survey_item_ids_for_grade, lambda { |school, academic_year, grade|
+      survey_items_for_grade(school, academic_year, grade).pluck(:survey_item_id)
+    }
+
+    scope :survey_items_for_grade_and_subcategory, lambda { |school, academic_year, grade, subcategory|
+      includes(:survey_item_responses)
+        .where(
+          survey_item_id: subcategory.survey_items.pluck(:survey_item_id),
+          "survey_item_responses.school": school,
+          "survey_item_responses.academic_year": academic_year,
+          "survey_item_responses.grade": grade
+        )
+    }
+
+    scope :survey_type_for_grade, lambda { |school, academic_year, grade|
+      survey_items_set_by_grade = survey_items_for_grade(school, academic_year, grade).pluck(:survey_item_id).to_set
+      if survey_items_set_by_grade.size > 0 && survey_items_set_by_grade.subset?(early_education_survey_items.pluck(:survey_item_id).to_set)
+        return :early_education
+      end
+
+      :standard
+    }
+
+    def description
+      Summary.new(survey_item_id, prompt, true)
+    end
+
+    def self.survey_type(survey_item_ids:)
+      survey_item_ids = survey_item_ids.reject { |id| id.ends_with?("-1") }.to_set
+      return :short_form if survey_item_ids.subset? short_form_survey_items.map(&:survey_item_id).to_set
+      return :early_education if survey_item_ids.subset? early_education_survey_items.map(&:survey_item_id).to_set
+      return :teacher if survey_item_ids.subset? teacher_survey_items.map(&:survey_item_id).to_set
+      return :standard if survey_item_ids.subset? standard_survey_items.map(&:survey_item_id).to_set
+
+      :unknown
+    end
+  end
+end