#8686 Adding a method to validate hasMany and HABTM count

cakephp · Apr 25, 2016 · 006b98f · 006b98f
1 parent c263b38
commit 006b98f
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Showing 2 changed files with 36 additions and 0 deletions.
diff --git a/src/ORM/Table.php b/src/ORM/Table.php
@@ -2304,4 +2304,24 @@ public function __debugInfo()
             'connectionName' => $conn ? $conn->configName() : null
         ];
     }
+
+    /**
+     * Validates that a belongsToMany or hasMany assoc has at least one entry.
+     *
+     * @param mixed $value
+     * @return boolean
+     */
+    public function validateAtLeastOne($value)
+    {
+        if (!is_array($value)) {
+            return false;
+        }
+        if (isset($value['_ids'])) {
+            if (!is_array($value['_ids'])) {
+                return false;
+            }
+            return (count($value['_ids']) > 0);
+        }
+        return (count($value) > 0);
+    }
 }
diff --git a/tests/TestCase/ORM/TableTest.php b/tests/TestCase/ORM/TableTest.php
@@ -5859,4 +5859,20 @@ public function skipIfSqlServer()
             'SQLServer does not support the requirements of this test.'
         );
     }
+
+    /**
+     * Test that an association has at least one entry present.
+     *
+     * @return void
+     */
+    public function testValidateAtLeastOne()
+    {
+        $table = TableRegistry::get('Authors');
+        $this->assertFalse($table->validateAtLeastOne(''));
+        $this->assertFalse($table->validateAtLeastOne([]));
+        $this->assertFalse($table->validateAtLeastOne(['_ids' => '']));
+        $this->assertFalse($table->validateAtLeastOne(['_ids' => []]));
+
+        $this->assertTrue($table->validateAtLeastOne(['_ids' => [1, 2, 3]]));
+    }
 }