improve filter

app/controllers/checks_controller.rb

@@ -69,7 +69,7 @@ class ChecksController < ApplicationController
   end
 
   def filter_params
-    @filter_params ||= params.permit(filter: [ :s, priority: [], conformity_level: [], standard_ids: [], principle_id: [] ])[:filter] || {}
+    @filter_params ||= params.permit(filter: [ :s, priority: [], conformity_level: [], standard_ids: [], principle_id: [], target_disabilities: []])[:filter] || {}
   end
 
   private

app/models/check.rb

@@ -54,19 +54,18 @@ class Check < ApplicationRecord
 
   before_validation { self.number = self.class.maximum(:id).to_i + 1 unless self.number.present? }
 
-  scope(:search, lambda { |term|
+  scope(:search, lambda { |terms|
     # TODO: Search only fields for current locale.
     joined = joins("INNER JOIN action_text_rich_texts ON action_text_rich_texts.record_id = checks.id AND record_type = 'Check'")
-    if term.to_i > 0
-      joined.where("checks.name_de LIKE :term OR checks.name_de LIKE :term OR checks.number = :number OR action_text_rich_texts.body LIKE :term", term: "%#{term}%", number: term.to_i).distinct
-    else
-      joined.where("checks.name_de LIKE :term OR checks.name_de LIKE :term OR action_text_rich_texts.body LIKE :term", term: "%#{term}%").distinct
+    terms.split(" ").uniq.each_with_index do |term, i|
+      joined = joined.where("checks.name_de LIKE :term OR action_text_rich_texts.body LIKE :term", term: "%#{term}%")
     end
+    joined.distinct
   })
 
   scope(:filter_by, lambda { |filter|
     relation = where(nil)
-    filter.slice(:s, :principle_id, :priorities, :standard_ids, :conformity_level).each do |key, value|
+    filter.slice(:s, :principle_id, :priorities, :standard_ids, :conformity_level, :target_disabilities).each do |key, value|
       next unless value.present?
 
       case key
@@ -74,6 +73,16 @@ class Check < ApplicationRecord
         relation = relation.search(value)
       when "standard_ids"
         relation = relation.joins(:standards).where(standards: { id: value })
+      when "target_disabilities"
+        cond = String.new
+        value.intersection(%w(auditory visual physical cognitive)).each_with_index do |v, i|
+          if i == 0
+            cond << "checks.#{v} = 1"
+          else
+            cond << " OR checks.#{v} = 1"
+          end
+        end
+        relation = relation.where("(#{cond})")
       else
         relation = relation.where(key => value)
       end
@@ -90,6 +99,10 @@ class Check < ApplicationRecord
     [ "links", "principle", "rich_text_comment", "rich_text_conformity_notice_de", "rich_text_conformity_notice_en", "rich_text_criterion_de", "rich_text_criterion_details_de", "rich_text_criterion_details_en", "rich_text_criterion_en", "rich_text_example_de", "rich_text_example_en", "rich_text_exemption_details_de", "rich_text_exemption_details_en", "rich_text_powerpoint_text_de", "rich_text_powerpoint_text_en", "rich_text_quick_criterion_de", "rich_text_quick_criterion_en", "rich_text_quick_fail_de", "rich_text_quick_fail_en", "rich_text_quick_fix_de", "rich_text_quick_fix_en", "rich_text_standard_text_de", "rich_text_standard_text_en", "rich_text_test_instructions", "standards" ]
   end
 
+  def self.target_disabilities
+    %i[visual auditory physical cognitive].index_with { self }
+  end
+
   def display_target_disabilities
     %i[visual auditory physical cognitive].select { |d| send(:"#{d}?") }.map { |d| I18n.t("disability.#{d}") }.join(", ")
   end

app/views/checks/index.html.slim

@@ -19,7 +19,7 @@ h1
     = bootstrap_form_with(url: checks_path, method: :get, scope: :filter) do |form|
       = form.hidden_field :page, value: params[:page] if params[:page]
       .row
-        .col-lg-5
+        .col-lg-12
           = form.text_field(:s, placeholder: "suchen...", hide_label: true, value: filter_params[:s])
         .col-lg-2 
           - Principle.all.sort_by(&:name_de).each do |principle|
@@ -37,6 +37,10 @@ h1
           - Check.priorities.each do |priority, value|
             .form-check.form-check-inline
               = form.check_box :priority, { label: t("priority.#{priority}"), multiple: true, checked: (filter_params[:priority] || []).include?(value.to_s) }, value, nil
+        .col-lg-1  
+          - Check.target_disabilities.map { |d, _v| [I18n.t("disability.#{d}"), d] }.each do |target_disability, value|
+            .form-check.form-check-inline
+              = form.check_box :target_disabilities, { label: target_disability, multiple: true, checked: (filter_params[:target_disabilities] || []).include?(value.to_s) }, value, nil
       .row 
         .col
           = form.submit name: "", value: "Filtern"