SilverStripe 4 Upgrade

composer.json

@@ -1,7 +1,7 @@
 {
 	"name": "samthejarvis/gridfield-summary-row",
 	"description": "Add a summary row to gridfields (incl. totals)",
-	"type": "silverstripe-module",
+	"type": "silverstripe-vendormodule",
 	"homepage": "https://github.com/samthejarvis/gridfield-summary-row",
 	"keywords": [
 		"silverstripe", "summary", "gridfield", "total", "totals", "samthejarvis"
@@ -17,7 +17,11 @@
 		"issues": "https://github.com/samthejarvis/gridfield-summary-row/issues"
 	},
 	"require": {
-		"silverstripe/cms": "~3.1.0",
-		"silverstripe/framework": "~3.1.0"
+		"silverstripe/framework": "^4.1"
+    },
+    "autoload": {
+        "psr-4": {
+            "SamTheJarvis\\GridFieldSummaryRow\\": "src/"
+        }
 	}
 }

src/.upgrade.yml

@@ -0,0 +1,2 @@
+mappings:
+  GridFieldSummaryRow: SamTheJarvis\GridFieldSummaryRow\GridFieldSummaryRow

src/GridFieldSummaryRow.php

@@ -0,0 +1,99 @@
+<?php
+
+namespace SamTheJarvis\GridFieldSummaryRow;
+
+use SilverStripe\ORM\ArrayList;
+use SilverStripe\View\ArrayData;
+use SilverStripe\View\Requirements;
+use SilverStripe\ORM\FieldType\DBInt;
+use SilverStripe\ORM\FieldType\DBText;
+use SilverStripe\ORM\FieldType\DBField;
+use SilverStripe\ORM\FieldType\DBFloat;
+use SilverStripe\Core\Injector\Injector;
+use SilverStripe\ORM\FieldType\DBDecimal;
+use SilverStripe\Core\Config\Configurable;
+use SilverStripe\Forms\GridField\GridField;
+use SilverStripe\Forms\GridField\GridField_HTMLProvider;
+
+class GridFieldSummaryRow implements GridField_HTMLProvider
+{
+    use Configurable;
+
+    /**
+     * List of data types that will result in a sum.
+     * 
+     * *NOTE* This class will also check for instances of these classes 
+     * 
+     * @var array
+     */
+    private static $allowed_classes = [
+        DBFloat::class,
+        DBDecimal::class,
+        DBInt::class,
+        DBMoney::class
+    ];
+
+    public function __construct($fragment = 'footer') 
+    {
+        $this->fragment = $fragment;
+    }
+
+    /**
+     * Is the provided field on our allowed list?
+     * 
+     * @return boolean
+     */
+    protected function isFieldAllowed(DBField $field)
+    {
+        foreach ($this->config()->allowed_classes as $class) {
+            if (get_class($field) == $class || is_subclass_of($field, $class)) {
+                return true;
+            }
+        }
+
+        return false;
+    }
+
+
+    /**
+     * Render this row
+     * 
+     * @param GridField $gridField The current gridfield
+     * 
+     * @return array
+     */
+    public function getHTMLFragments($gridField) 
+    {
+        $columns = $gridField->getColumns();
+        $list = $gridField->getList();
+        $summary_values = ArrayList::create();
+        $singleton = Injector::inst()->get($list->dataClass, true);
+        $db = $singleton->config()->db;
+
+        foreach ($columns as $column) {
+            $field = $singleton->dbObject($column);
+            $summary_value = "";
+
+            if (empty($field) || !$this->isFieldAllowed($field)) {
+                $obj = DBText::create("Summary");
+            } else {
+                $obj = clone $field;
+                if ($db[$column] == "Money") {
+                    $summary_value = $list->sum($column."Amount");
+                } else {
+                    $summary_value = $list->sum($column);
+                }
+            }
+
+            $obj->setValue($summary_value);
+
+            $summary_values->push(
+                ArrayData::create(["Value" => $obj])
+            );
+        }
+
+        $data = ArrayData::create(['SummaryValues' => $summary_values]);
+
+        return [$this->fragment => $data->renderWith(__CLASS__)];
+    }
+}

templates/GridFieldSummaryRow.ss → templates/SamTheJarvis/GridFieldSummaryRow/GridFieldSummaryRow.ss

@@ -1,6 +1,5 @@
 <tr class="summary-row">
-
 	<% loop SummaryValues %>
-		<td>$Value</td>
+		<td class="text-right"><strong>$Value.Nice</strong></td>
 	<% end_loop %>
 </tr>