Silly read only databases...

app/controllers/joints_controller.rb

@@ -0,0 +1,14 @@
+class JointsController < ApplicationController
+  def index
+    # Grab values:
+    @available_categories = JointsDashboard.distinct.pluck(:Joint)
+
+    # Start with base query:
+    @records = JointsDashboard.all
+
+    # Filter data based on dropdown selection params
+    @records = @records.where(Joint: params[:joint]) if params[:joint].present?
+    #@records = @records.where(Joint == params[:joint]) if params[:joint].present?
+    puts @records
+  end
+end

app/models/joints_dashboard.rb

@@ -0,0 +1,10 @@
+class JointsDashboard < ApplicationRecord
+  self.table_name = "Joints"
+
+  # Prevent actidental updates from code:
+  def readonly?
+    true
+  end
+
+  
+end

app/views/joints/joints.html.erb

@@ -0,0 +1,39 @@
+<h1>Excel Replacement Dashboard</h1>
+
+<!-- Dropdown Filters Form -->
+<%= form_with url: dashboard_path, method: :get, local: true do |f| %>
+  <div>
+    <%= f.label :category, "Select Category:" %>
+    <%= f.select :category, options_for_select(@available_categories, params[:category]), include_blank: "All Categories" %>
+  </div>
+
+  <div>
+    <%= f.label :region, "Select Region:" %>
+    <%= f.select :region, options_for_select(@available_regions, params[:region]), include_blank: "All Regions" %>
+  </div>
+
+  <%= f.submit "Filter Data" %>
+<% end %>
+
+<hr>
+
+<!-- Displaying the Data in Specific Locations / Table -->
+<h2>Dashboard Results</h2>
+<table>
+  <thead>
+    <tr>
+      <th>Column 1</th>
+      <th>Column 2</th>
+      <th>Value</th>
+    </tr>
+  </thead>
+  <tbody>
+    <% @records.each do |record| %>
+      <tr>
+        <td><%= record.category_column %></td>
+        <td><%= record.region_column %></td>
+        <td><%= record.metric_value_column %></td>
+      </tr>
+    <% end %>
+  </tbody>
+</table>

config/application.rb

@@ -23,5 +23,8 @@ module Site
     #
     # config.time_zone = "Central Time (US & Canada)"
     # config.eager_load_paths << Rails.root.join("extras")
+
+    # Disable activerecord performing migrations.
+    config.active_record.migration_error = false
   end
 end

config/database.yml

@@ -10,8 +10,12 @@ default: &default
   timeout: 5000
 
 development:
-  <<: *default
-  database: storage/development.sqlite3
+  adapter: sqlite3
+  #database: "file:db/anat_proj.db?mode=ro"
+  database: "db/anat_proj.db"
+  #readonly: true
+  pool: 5
+  timeout: 5000
 
 # Warning: The database defined as "test" will be erased and
 # re-generated from your development database when you run "rake".

config/environments/development.rb

@@ -75,4 +75,8 @@ Rails.application.configure do
 
   # Apply autocorrection by RuboCop to files generated by `bin/rails generate`.
   # config.generators.apply_rubocop_autocorrect_after_generate!
+
+  config.active_record.migration_error = false
+  config.log_level = :debug
+  #config.active_record,verbose_query_logs = true
 end

config/routes.rb

@@ -11,4 +11,5 @@ Rails.application.routes.draw do
 
   # Defines the root path route ("/")
   # root "posts#index"
+  root "joints#index"
 end

test/fixtures/joints_dashboards.yml

@@ -0,0 +1,11 @@
+# Read about fixtures at https://api.rubyonrails.org/classes/ActiveRecord/FixtureSet.html
+
+# This model initially had no columns defined. If you add columns to the
+# model remove the "{}" from the fixture names and add the columns immediately
+# below each fixture, per the syntax in the comments below
+#
+one: {}
+# column: value
+#
+two: {}
+# column: value

test/models/joints_dashboard_test.rb

@@ -0,0 +1,7 @@
+require "test_helper"
+
+class JointsDashboardTest < ActiveSupport::TestCase
+  # test "the truth" do
+  #   assert true
+  # end
+end