feat: Add income table to the database. Add seeder for income. Add a reference to income from survey item response. Update the loader to import income data from the survey response csv. Refactor analyze controller to extract presenter. Add corresponding specs. Add income graph to analyze page

app/controllers/analyze_controller.rb

@@ -1,172 +1,8 @@
 # frozen_string_literal: true
 
 class AnalyzeController < SqmApplicationController
-  before_action :assign_categories, :assign_subcategories, :assign_measures, :assign_academic_years,
-                :races, :selected_races, :graph, :graphs, :background, :race_score_timestamp,
-                :source, :sources, :group, :groups, :selected_grades, :grades, :slice, :selected_genders, :genders, only: [:index]
-  def index; end
-
-  private
-
-  def assign_categories
-    @category ||= Category.find_by_category_id(params[:category])
-    @category ||= Category.order(:category_id).first
-    @categories = Category.all.order(:category_id)
-  end
-
-  def assign_subcategories
-    @subcategories = @category.subcategories.order(:subcategory_id)
-    @subcategory ||= Subcategory.find_by_subcategory_id(params[:subcategory])
-    @subcategory ||= @subcategories.first
-  end
-
-  def assign_measures
-    @measures = @subcategory.measures.order(:measure_id).includes(%i[admin_data_items subcategory])
-  end
-
-  def assign_academic_years
-    @available_academic_years = AcademicYear.order(:range).all
-    year_params = params[:academic_years]
-    @academic_year_params = year_params.split(',') if year_params
-    @selected_academic_years = []
-    @academic_year_params ||= []
-    @academic_year_params.each do |year|
-      @selected_academic_years << AcademicYear.find_by_range(year)
-    end
-  end
-
-  def races
-    @races ||= Race.all.order(designation: :ASC)
-  end
-
-  def selected_races
-    @selected_races ||= begin
-      race_params = params[:races]
-      return @selected_races = races unless race_params
-
-      race_list = race_params.split(',') if race_params
-      if race_list
-        race_list = race_list.map do |race|
-          Race.find_by_slug race
-        end
-      end
-      race_list
-    end
-  end
-
-  def graph
-    graphs.each do |graph|
-      @graph = graph if graph.slug == params[:graph]
-    end
-
-    @graph ||= graphs.first
-  end
-
-  def graphs
-    @graphs ||= [Analyze::Graph::AllData.new, Analyze::Graph::StudentsAndTeachers.new, Analyze::Graph::StudentsByRace.new(races: selected_races),
-                 Analyze::Graph::StudentsByGrade.new(grades: selected_grades), Analyze::Graph::StudentsByGender.new(genders: selected_genders)]
-  end
-
-  def background
-    @background ||= BackgroundPresenter.new(num_of_columns: graph.columns.count)
-  end
-
-  def race_score_timestamp
-    @race_score_timestamp ||= begin
-      score = RaceScore.where(school: @school,
-                              academic_year: @academic_year).order(updated_at: :DESC).first || Today.new
-      score.updated_at
-    end
-  end
-
-  def source
-    source_param = params[:source]
-    sources.each do |source|
-      @source = source if source.slug == source_param
-    end
-
-    @source ||= sources.first
-  end
-
-  def sources
-    all_data_slices = [Analyze::Slice::AllData.new]
-    all_data_source = Analyze::Source::AllData.new(slices: all_data_slices)
-
-    students_and_teachers = Analyze::Slice::StudentsAndTeachers.new
-    students_by_group = Analyze::Slice::StudentsByGroup.new(races:, grades:)
-    survey_data_slices = [students_and_teachers, students_by_group]
-    survey_data_source = Analyze::Source::SurveyData.new(slices: survey_data_slices)
-
-    @sources = [all_data_source, survey_data_source]
-  end
-
-  def slice
-    slice_param = params[:slice]
-    slices.each do |slice|
-      @slice = slice if slice.slug == slice_param
-    end
-
-    @slice ||= slices.first
-  end
-
-  def slices
-    source.slices
-  end
-
-  def group
-    groups.each do |group|
-      @group = group if group.slug == params[:group]
-    end
-
-    @group ||= groups.first
-  end
-
-  def groups
-    @groups = [Analyze::Group::Race.new, Analyze::Group::Grade.new, Analyze::Group::Gender.new]
-  end
-
-  def selected_grades
-    @selected_grades ||= begin
-      grade_params = params[:grades]
-      return @selected_grades = grades unless grade_params
-
-      grade_list = grade_params.split(',') if grade_params
-      if grade_list
-        grade_list = grade_list.map do |grade|
-          grade.to_i
-        end
-      end
-      grade_list
-    end
-  end
-
-  def grades
-    @grades ||= SurveyItemResponse.where(school: @school, academic_year: @academic_year)
-                                  .where.not(grade: nil)
-                                  .group(:grade)
-                                  .select(:response_id)
-                                  .distinct(:response_id)
-                                  .count.reject do |_key, value|
-                                    value < 10
-                                  end.keys
-  end
-
-  def selected_genders
-    @selected_genders ||= begin
-      gender_params = params[:genders]
-      return @selected_genders = genders unless gender_params
-
-      gender_list = gender_params.split(',') if gender_params
-      if gender_list
-        gender_list = gender_list.map do |gender|
-          Gender.find_by_designation(gender)
-        end
-      end
-      gender_list
-    end
-  end
-
-  def genders
-    @genders ||= Gender.all
+  def index
+    @presenter = Analyze::Presenter.new(params:, school: @school, academic_year: @academic_year)
+    @background ||= BackgroundPresenter.new(num_of_columns: @presenter.graph.columns.count)
   end
 end