Merge pull request mavinoo#56 from WalterWoshid/master

Added increment / decrement functionality
HilbertGilbertson · Feb 23, 2021 · 7eb48e6 · 7eb48e6
2 parents 1fbd6cb + dd84db6
commit 7eb48e6
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diff --git a/README.md b/README.md
@@ -74,6 +74,39 @@ $index = 'id';
 Batch::update($userInstance, $value, $index);
 ```
 
+# Example Increment / Decrement
+
+```php
+use App\Models\User;
+
+$userInstance = new User;
+$value = [
+     [
+         'id' => 1,
+         'balance' => '+500' // Add
+     ] ,
+     [
+         'id' => 2,
+         'balance' => '-200' // Subtract
+     ] ,
+     [
+         'id' => 3,
+         'balance' => '*5' // Multiply
+     ] ,
+     [
+         'id' => 4,
+         'balance' => '/2' // Divide
+     ] ,
+     [
+         'id' => 5,
+         'balance' => '%2' // Modulo
+     ] ,
+];
+$index = 'id';
+
+Batch::update($userInstance, $value, $index);
+```
+
 # Example Insert
 
 ```php

diff --git a/src/Batch.php b/src/Batch.php
@@ -73,8 +73,12 @@ public function update(Model $table, array $values, string $index = null, bool $
 
             foreach (array_keys($val) as $field) {
                 if ($field !== $index) {
-                    $finalField = $raw ? Common::mysql_escape($val[$field]) : "'" . Common::mysql_escape($val[$field]) . "'";
-                    $value = (is_null($val[$field]) ? 'NULL' : $finalField);
+                    if (gettype($val[$field]) == 'string' && !empty($val[$field]) && str_replace(['+', '-', '*', '/', '%'], '', $val[$field][0]) !== $val[$field][0]) {
+                        $value = '`' . $field . '`' . $val[$field];
+                    } else {
+                        $finalField = $raw ? Common::mysql_escape($val[$field]) : "'" . Common::mysql_escape($val[$field]) . "'";
+                        $value = (is_null($val[$field]) ? 'NULL' : $finalField);
+                    }
                     if ($driver == 'pgsql')
                         $final[$field][] = 'WHEN ' . $index . ' = \'' . $val[$index] . '\' THEN ' . $value . ' ';
                     else