Partly working

app/controllers/dashboard_controller.rb

@@ -1,25 +1,50 @@
-class DashboardController < ApplicationController
-  def index
-    joint_column = 'joint'
-    @available_joints = Joint.distinct.pluck(joint_column)
-    @available_data
-    @records = filter_records
+require 'yaml'
 
+class DashboardController < ApplicationController
+  before_action :load_manifest
+
+  def index
+    # Renders the main page
     respond_to do |format|
-      format.html 
-      format.json { render json: @records } 
+      format.html
+      format.json { render json: @manifest }
     end
   end
 
+  # GET /dashboard/options?table=Joint&filter_col=joint_id&value=1
+  def options
+    table = params[:table].constantize
+    if params[:filter_col].present?
+      options = table.where(params[:filter_col] => params[:value]).pluck(params[:pluck_column])
+    else
+      puts table
+      options = table.distinct.pluck(params[:pluck_column])
+    end
+    render json: options
+  end
+
+  # GET /dashboard/data?joint=Acromioclavicular&sub_joint=X
+  def data
+    results = {}
+    
+    # Use the data_sources from YAML to aggregate data
+    @manifest['data_sources'].each do |source|
+      table = source['table'].constantize
+      # Find the filter value from the params that matches the filter_column
+      # We assume the filter_column name in DB matches the filter ID in YAML
+      filter_val = params[source['filter_column']] || params['joint'] # Fallback to joint
+      
+      record = table.find_by(source['filter_column'] => filter_val)
+      results[source['key']] = record ? record.attributes : {}
+    end
+    
+    #debugger
+    render json: results
+  end
+
   private
 
-  def filter_records
-    # Using .where(joint: params[:joint]) handles both present and nil values gracefully
-    if params[:joint].present?
-      Joint.where(joint: params[:joint])
-    else
-      # Return empty array if no joint selected to avoid loading thousands of records
-      [] 
-    end
+  def load_manifest
+    @manifest = YAML.load_file(Rails.root.join('config', 'dashboard_manifest.yml'))
   end
 end