Improve README with comprehensive usage examples

Add documentation for all three builder types (QueryBuilder,
TableBuilder, ReportBuilder), the new GroupBy feature, column types,
conditions, filters, and relationship support.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: SimonBarrettACT

README.md

@@ -1,44 +1,62 @@
-# A drop in query builder for Laravel models.
+# Query Builder for Laravel
 
-Add a query builder and report table for youir models.
+Drop-in Livewire components for building query builders, tables, and reports on Eloquent models.
 
 ## Installation
 
-You can install the package via composer:
-
 ```bash
 composer require act-training/query-builder
 ```
 
-Optionally, you can publish the views using
+Optionally, publish the views:
 
 ```bash
 php artisan vendor:publish --tag="query-builder-views"
 ```
 
-## Usage
-Models should use the AppliesCriteria trait.
+## Model Setup
+
+Models should use the `AppliesCriteria` trait:
 
 ```php
-class User extends Authenticatable
+use ACTTraining\QueryBuilder\Support\Criteria\AppliesCriteria;
+
+class Employee extends Model
 {
     use AppliesCriteria;
-
-    ...
-
 }
 ```
 
-Create a Livewire component and make sure it extends QueryBuilder.
+## Components
+
+The package provides three main abstract Livewire components to extend:
+
+| Component | Purpose |
+|---|---|
+| `QueryBuilder` | Full query builder with criteria-based AND/OR filtering |
+| `TableBuilder` | Simpler table with URL-persisted filters and search |
+| `ReportBuilder` | Dynamic column selection, save/load/export, optional groupBy |
+
+### QueryBuilder
+
+Create a Livewire component that extends `QueryBuilder`. Define `query()`, `columns()`, and `conditions()`:
 
 ```php
 <?php
 
-namespace App\Http\Livewire;
+namespace App\Livewire;
 
-use ACTTraining\QueryBuilder\QueryBuilder;use ACTTraining\QueryBuilder\Support\Columns\BooleanColumn;use ACTTraining\QueryBuilder\Support\Columns\Column;use ACTTraining\QueryBuilder\Support\Columns\DateColumn;use ACTTraining\QueryBuilder\Support\Conditions\BooleanCondition;use ACTTraining\QueryBuilder\Support\Conditions\DateCondition;use ACTTraining\QueryBuilder\Support\Conditions\TextCondition;use App\Models\Employee;use Illuminate\Database\Eloquent\Builder;
+use ACTTraining\QueryBuilder\QueryBuilder;
+use ACTTraining\QueryBuilder\Support\Columns\BooleanColumn;
+use ACTTraining\QueryBuilder\Support\Columns\Column;
+use ACTTraining\QueryBuilder\Support\Columns\DateColumn;
+use ACTTraining\QueryBuilder\Support\Conditions\BooleanCondition;
+use ACTTraining\QueryBuilder\Support\Conditions\DateCondition;
+use ACTTraining\QueryBuilder\Support\Conditions\TextCondition;
+use App\Models\Employee;
+use Illuminate\Database\Eloquent\Builder;
 
-class EmployeesReport extends QueryBuilder
+class EmployeesTable extends QueryBuilder
 {
     public function config(): void
     {
@@ -47,6 +65,11 @@ class EmployeesReport extends QueryBuilder
             ->rowClickable(false);
     }
 
+    public function query(): Builder
+    {
+        return Employee::query()->with(['contract', 'contract.job', 'contract.location']);
+    }
+
     public function columns(): array
     {
         return [
@@ -74,20 +97,218 @@ class EmployeesReport extends QueryBuilder
             DateCondition::make('Start Date', 'contract.start_date'),
         ];
     }
+}
+```
+
+### TableBuilder
+
+A simpler alternative using filters instead of criteria. Define `query()`, `columns()`, and `filters()`:
+
+```php
+<?php
+
+namespace App\Livewire;
+
+use ACTTraining\QueryBuilder\TableBuilder;
+use ACTTraining\QueryBuilder\Support\Columns\Column;
+use ACTTraining\QueryBuilder\Support\Filters\TextFilter;
+use ACTTraining\QueryBuilder\Support\Filters\SelectFilter;
+use App\Models\Employee;
+use Illuminate\Database\Eloquent\Builder;
+
+class EmployeesList extends TableBuilder
+{
+    public function query(): Builder
+    {
+        return Employee::query();
+    }
+
+    public function columns(): array
+    {
+        return [
+            Column::make('Name', 'full_name')->sortable()->searchable(),
+            Column::make('Department', 'department')->sortable(),
+        ];
+    }
+
+    public function filters(): array
+    {
+        return [
+            TextFilter::make('Name', 'full_name'),
+            SelectFilter::make('Department', 'department')
+                ->options(['HR' => 'HR', 'IT' => 'IT', 'Finance' => 'Finance']),
+        ];
+    }
+}
+```
+
+### ReportBuilder
+
+Extends `QueryBuilder` with dynamic column selection. Users pick columns at runtime from `availableColumns()`, and the component builds columns and conditions automatically:
+
+```php
+<?php
 
+namespace App\Livewire;
+
+use ACTTraining\QueryBuilder\ReportBuilder;
+use App\Models\Employee;
+use Illuminate\Database\Eloquent\Builder;
+
+class EmployeesReport extends ReportBuilder
+{
     public function query(): Builder
     {
         return Employee::query()->with(['contract', 'contract.job', 'contract.location']);
     }
 
-    public function rowClick($row): void
+    public function availableColumns(): array
     {
-        $this->dispatchBrowserEvent('notify', ['content' => 'The row was clicked', 'type' => 'success']);
+        return [
+            'Employee' => [
+                ['label' => 'Name', 'key' => 'full_name'],
+                ['label' => 'Email', 'key' => 'email'],
+            ],
+            'Contract' => [
+                ['label' => 'Job Title', 'key' => 'contract.job.name'],
+                ['label' => 'Location', 'key' => 'contract.location.name'],
+                ['label' => 'Start Date', 'key' => 'contract.start_date', 'type' => 'date'],
+                ['label' => 'Salary', 'key' => 'contract.salary', 'type' => 'number'],
+                ['label' => 'Line Manager', 'key' => 'contract.line_manager', 'type' => 'boolean'],
+            ],
+        ];
+    }
+}
+```
+
+Column definitions in `availableColumns()` support these keys:
+
+| Key | Description |
+|---|---|
+| `label` | Display label (required) |
+| `key` | Column key, supports dot-notation for relationships (required) |
+| `type` | Column type: `text` (default), `number`, `float`, `boolean`, `date`, `enum`, `null`, `view` |
+| `sortable` | Enable sorting on this column |
+| `justify` | Alignment: `left`, `center`, `right` |
+| `view` | Custom Blade component for rendering |
+| `options` | Options array for `enum` type |
+| `skipCondition` | Exclude from query builder conditions |
+
+### ReportBuilder with GroupBy
+
+Enable groupBy to allow users to group results by a column with aggregate functions (COUNT, SUM, AVG, MIN, MAX). Set `$enableGroupBy = true`:
+
+```php
+<?php
+
+namespace App\Livewire;
+
+use ACTTraining\QueryBuilder\ReportBuilder;
+use App\Models\Employee;
+use Illuminate\Database\Eloquent\Builder;
+
+class EmployeesGroupReport extends ReportBuilder
+{
+    public bool $enableGroupBy = true;
+
+    public function query(): Builder
+    {
+        return Employee::query()->with(['contract', 'contract.job', 'contract.location']);
     }
 
+    public function availableColumns(): array
+    {
+        return [
+            'Employee' => [
+                ['label' => 'Name', 'key' => 'full_name'],
+                ['label' => 'Department', 'key' => 'department'],
+            ],
+            'Contract' => [
+                ['label' => 'Job Title', 'key' => 'contract.job.name'],
+                ['label' => 'Location', 'key' => 'contract.location.name'],
+                ['label' => 'Salary', 'key' => 'contract.salary', 'type' => 'number'],
+            ],
+        ];
+    }
 }
 ```
 
+When `enableGroupBy` is true, the report editor UI shows additional controls:
+
+- **Group By Column** - select which column to group by
+- **Function** - aggregate function (COUNT, SUM, AVG, MIN, MAX)
+- **Aggregate Column** - which column to aggregate (defaults to `id`, numeric columns from `availableColumns()` are included automatically)
+
+An "Aggregate" column is automatically appended to the table when grouping is active.
+
+You can customise the available aggregate functions and groupable/aggregatable columns by overriding:
+
+```php
+public function aggregateFunctions(): array
+{
+    return ['COUNT', 'SUM', 'AVG'];
+}
+
+public function groupableColumns(): array
+{
+    // Return a flat array of ['label' => ..., 'key' => ...] items
+    return [
+        ['label' => 'Department', 'key' => 'department'],
+        ['label' => 'Location', 'key' => 'contract.location.name'],
+    ];
+}
+
+public function aggregatableColumns(): array
+{
+    return [
+        ['label' => 'ID', 'key' => 'id'],
+        ['label' => 'Salary', 'key' => 'contract.salary'],
+    ];
+}
+```
+
+## Columns
+
+All column types use a fluent `make($label, $key)` constructor. If `$key` is omitted, it defaults to `Str::snake($label)`.
+
+| Column Type | Description |
+|---|---|
+| `Column` | General text column |
+| `BooleanColumn` | Boolean/checkbox display |
+| `DateColumn` | Date formatting with `->format()` and `->humanDiff()` |
+| `ViewColumn` | Custom Blade view rendering |
+
+Columns support: `->sortable()`, `->searchable()`, `->justify('right')`, `->component('view.name')`, `->reformatUsing(callable)`, `->withSubTitle(callable)`, `->hideIf(condition)`, `->hideHeader()`.
+
+## Conditions (QueryBuilder)
+
+Used with `QueryBuilder` and `ReportBuilder` for criteria-based filtering:
+
+| Condition Type | Operations |
+|---|---|
+| `TextCondition` | equals, not_equals, contains, starts_with, ends_with |
+| `NumberCondition` | equals, not_equals, greater_than, less_than, is_between |
+| `FloatCondition` | equals, not_equals, greater_than, less_than, is_between |
+| `BooleanCondition` | is_true, is_false |
+| `DateCondition` | equals, before, after, is_between |
+| `EnumCondition` | equals, not_equals (with defined options) |
+| `NullCondition` | is_set, is_not_set |
+
+## Filters (TableBuilder)
+
+Used with `TableBuilder` for simpler key/operator/value filtering:
+
+`TextFilter`, `NumberFilter`, `DateFilter`, `BooleanFilter`, `SelectFilter`, `NullFilter`
+
+## Relationship Support
+
+Dot-notation keys work throughout columns, conditions, and filters to traverse Eloquent relationships:
+
+```php
+Column::make('Job Title', 'contract.job.name')
+TextCondition::make('Location', 'contract.location.name')
+```
+
 ## Testing
 
 ```bash