1 files changed, 74 insertions, 0 deletions
diff --git a/vendor/ipl/sql/src/OrderBy.php b/vendor/ipl/sql/src/OrderBy.php
new file mode 100644
index 0000000..0721ad5
--- /dev/null
+++ b/vendor/ipl/sql/src/OrderBy.php
@@ -0,0 +1,74 @@
+<?php
+
+namespace ipl\Sql;
+
+/**
+ * Trait for the ORDER BY part of a query
+ */
+trait OrderBy
+{
+    /** @var array ORDER BY part of the query */
+    protected $orderBy;
+
+    public function hasOrderBy()
+    {
+        return $this->orderBy !== null;
+    }
+
+    public function getOrderBy()
+    {
+        return $this->orderBy;
+    }
+
+    public function orderBy($orderBy, $direction = null)
+    {
+        if (! is_array($orderBy)) {
+            $orderBy = [$orderBy];
+        }
+
+        foreach ($orderBy as $column => $dir) {
+            if (is_int($column)) {
+                $column = $dir;
+                $dir = $direction;
+            }
+
+            if (is_array($column) && count($column) === 2) {
+                list($column, $dir) = $column;
+            }
+
+            if ($dir === SORT_ASC) {
+                $dir = 'ASC';
+            } elseif ($dir === SORT_DESC) {
+                $dir = 'DESC';
+            }
+
+            $this->orderBy[] = [$column, $dir];
+        }
+
+        return $this;
+    }
+
+    public function resetOrderBy()
+    {
+        $this->orderBy = null;
+
+        return $this;
+    }
+
+    /**
+     * Clone the properties provided by this trait
+     *
+     * Shall be called by using classes in their __clone()
+     */
+    protected function cloneOrderBy()
+    {
+        if ($this->orderBy !== null) {
+            foreach ($this->orderBy as &$orderBy) {
+                if ($orderBy[0] instanceof ExpressionInterface || $orderBy[0] instanceof Select) {
+                    $orderBy[0] = clone $orderBy[0];
+                }
+            }
+            unset($orderBy);
+        }
+    }
+}