Chart start at 0 - #1

Now it is possible to use the helper function `beginAtZero` to set the start value at 0

Author: bbsnly

README.md

@@ -1,4 +1,11 @@
 # ChartJS-PHP
+
+<p align="center">
+<a href="https://packagist.org/packages/bbsnly/chartjs-php"><img src="https://poser.pugx.org/bbsnly/chartjs-php/d/total.svg" alt="Total Downloads"></a>
+<a href="https://packagist.org/packages/bbsnly/chartjs-php"><img src="https://poser.pugx.org/bbsnly/chartjs-php/v/stable.svg" alt="Latest Stable Version"></a>
+<a href="https://packagist.org/packages/bbsnly/chartjs-php"><img src="https://poser.pugx.org/bbsnly/chartjs-php/license.svg" alt="License"></a>
+</p>
+
 The package helps you to generate [ChartJS](http://www.chartjs.org/ "ChartJS")
 element directly in PHP and translate it to JSON.
 
@@ -9,7 +16,7 @@ element directly in PHP and translate it to JSON.
 `composer test`
 
 ## Requirements
-* `php >= 5.6`
+* `php >= 7.0`
 * `ChartJS >= 2.0`
 
 ## Charts

src/Chart.php

@@ -50,8 +50,8 @@ public function get()
     public function toArray()
     {
         return [
-            'type'    => $this->type,
-            'data'    => $this->data->toArray(),
+            'type' => $this->type,
+            'data' => $this->data->toArray(),
             'options' => $this->options->toArray()
         ];
     }
@@ -101,4 +101,22 @@ public function data($data)
 
         return $this;
     }
+
+    /**
+     *
+     */
+    public function beginAtZero()
+    {
+        $this->options->scales([
+            'yAxes' => [
+                [
+                    'ticks' => [
+                        'beginAtZero' => true
+                    ]
+                ]
+            ]
+        ]);
+
+        return $this;
+    }
 }

tests/BaseChartTest.php

@@ -29,8 +29,8 @@ public function can_create_it()
     public function it_is_responsive()
     {
         $expected = [
-            'type'    => 'line',
-            'data'    => [],
+            'type' => 'line',
+            'data' => [],
             'options' => [
                 'responsive' => true
             ]
@@ -48,10 +48,10 @@ public function it_is_responsive()
     public function it_is_animated()
     {
         $expected = [
-            'type'    => 'line',
-            'data'    => [],
+            'type' => 'line',
+            'data' => [],
             'options' => [
-                'responsive'                  => true,
+                'responsive' => true,
                 'responsiveAnimationDuration' => 10
             ]
         ];
@@ -84,8 +84,8 @@ public function it_has_basic_datasets_json()
         $this->chart->data($data);
 
         $expected = json_encode([
-            'type'    => null,
-            'data'    => [
+            'type' => null,
+            'data' => [
                 'datasets' => [
                     (object)[
                         'data' => [10, 20, 30]
@@ -116,8 +116,8 @@ public function it_has_basic_data_with_labels()
         $this->chart->data($data);
 
         $expected = [
-            'type'    => null,
-            'data'    => [
+            'type' => null,
+            'data' => [
                 'datasets' => [
                     [
                         'data' => [10, 20, 30],
@@ -126,7 +126,7 @@ public function it_has_basic_data_with_labels()
                         'data' => [30, 20, 10]
                     ]
                 ],
-                'labels'   => ['Red', 'Green', 'Blue']
+                'labels' => ['Red', 'Green', 'Blue']
             ],
             'options' => []
         ];
@@ -149,23 +149,65 @@ public function it_has_basic_data_with_labels_and_colors()
         $this->chart->data($data);
 
         $expected = [
-            'type'    => null,
-            'data'    => [
+            'type' => null,
+            'data' => [
                 'datasets' => [
                     [
-                        'data'            => [10, 20, 30],
+                        'data' => [10, 20, 30],
                         'backgroundColor' => ['red', 'green', 'blue']
                     ],
                     [
-                        'data'            => [30, 20, 10],
+                        'data' => [30, 20, 10],
                         'backgroundColor' => ['red', 'green', 'blue']
                     ]
                 ],
-                'labels'   => ['Red', 'Green', 'Blue']
+                'labels' => ['Red', 'Green', 'Blue']
             ],
             'options' => []
         ];
 
         $this->assertEquals($expected, $this->chart->get());
     }
+
+    /** @test */
+    public function can_set_start_from_zero_using_helper()
+    {
+        $data = new Data;
+
+        $datasets = [
+            (new Dataset)->data([10, 20, 30])->backgroundColor(['red', 'green', 'blue'])
+        ];
+
+        $data->datasets($datasets)->labels(['Red', 'Green', 'Blue']);
+
+        $this->chart->data($data);
+
+        $this->chart->beginAtZero();
+
+        $expected = [
+            'type' => null,
+            'data' => [
+                'datasets' => [
+                    [
+                        'data' => [10, 20, 30],
+                        'backgroundColor' => ['red', 'green', 'blue']
+                    ]
+                ],
+                'labels' => ['Red', 'Green', 'Blue']
+            ],
+            'options' => [
+                'scales' => [
+                    'yAxes' => [
+                        [
+                            'ticks' => [
+                                'beginAtZero' => true
+                            ]
+                        ]
+                    ]
+                ]
+            ]
+        ];
+
+        $this->assertEquals($expected, $this->chart->get());
+    }
 }

tests/examples/bar.php

@@ -19,11 +19,10 @@
 
 $chart->data($data);
 
-$options = $options->responsive(false)
-    // Start at zero
-    ->scales((new \Chart\Config\Config())->yAxes([(new \Chart\Config\Config())->ticks(['beginAtZero' => true])]));
+$options = $options->responsive(false);
 $chart->options($options);
 
+$chart->beginAtZero();
 $myChart = $chart->toJson();
 
 include_once __DIR__ . '/base.php';