1 files changed, 158 insertions, 0 deletions
diff --git a/vendor/ipl/sql/src/Where.php b/vendor/ipl/sql/src/Where.php
new file mode 100644
index 0000000..f862846
--- /dev/null
+++ b/vendor/ipl/sql/src/Where.php
@@ -0,0 +1,158 @@
+<?php
+
+namespace ipl\Sql;
+
+/**
+ * Implementation for the {@link WhereInterface}
+ */
+trait Where
+{
+    /** @var array|null Internal representation for the WHERE part of the query */
+    protected $where;
+
+    public function getWhere()
+    {
+        return $this->where;
+    }
+
+    public function where($condition, ...$args)
+    {
+        list($condition, $operator) = $this->prepareConditionArguments($condition, $args);
+        $this->mergeCondition($this->where, $this->buildCondition($condition, $operator), Sql::ALL);
+
+        return $this;
+    }
+
+    public function orWhere($condition, ...$args)
+    {
+        list($condition, $operator) = $this->prepareConditionArguments($condition, $args);
+        $this->mergeCondition($this->where, $this->buildCondition($condition, $operator), Sql::ANY);
+
+        return $this;
+    }
+
+    public function notWhere($condition, ...$args)
+    {
+        list($condition, $operator) = $this->prepareConditionArguments($condition, $args);
+        $this->mergeCondition($this->where, $this->buildCondition($condition, $operator), Sql::NOT_ALL);
+
+        return $this;
+    }
+
+    public function orNotWhere($condition, ...$args)
+    {
+        list($condition, $operator) = $this->prepareConditionArguments($condition, $args);
+        $this->mergeCondition($this->where, $this->buildCondition($condition, $operator), Sql::NOT_ANY);
+
+        return $this;
+    }
+
+    public function resetWhere()
+    {
+        $this->where = null;
+
+        return $this;
+    }
+
+    /**
+     * Make $condition an array and build an array like this: [$operator, [$condition]]
+     *
+     * If $condition is empty, replace it with a boolean constant depending on the operator.
+     *
+     * @param string|array $condition
+     * @param string       $operator
+     *
+     * @return array
+     */
+    protected function buildCondition($condition, $operator)
+    {
+        if (is_array($condition)) {
+            if (empty($condition)) {
+                $condition = [$operator === Sql::ALL ? '1' : '0'];
+            } elseif (in_array(reset($condition), [Sql::ALL, Sql::ANY, Sql::NOT_ALL, Sql::NOT_ANY], true)) {
+                return $condition;
+            }
+        } else {
+            $condition = [$condition];
+        }
+
+        return [$operator, $condition];
+    }
+
+    /**
+     * Merge the given condition with ours via the given operator
+     *
+     * @param mixed  $base      Our condition
+     * @param array  $condition As returned by {@link buildCondition()}
+     * @param string $operator
+     */
+    protected function mergeCondition(&$base, array $condition, $operator)
+    {
+        if ($base === null) {
+            $base = [$operator, [$condition]];
+        } else {
+            if ($base[0] === $operator) {
+                $base[1][] = $condition;
+            } elseif ($operator === Sql::NOT_ALL) {
+                $base = [Sql::ALL, [$base, [$operator, [$condition]]]];
+            } elseif ($operator === Sql::NOT_ANY) {
+                $base = [Sql::ANY, [$base, [$operator, [$condition]]]];
+            } else {
+                $base = [$operator, [$base, $condition]];
+            }
+        }
+    }
+
+    /**
+     * Prepare condition arguments from the different supported where styles
+     *
+     * @param mixed $condition
+     * @param array $args
+     *
+     * @return array
+     */
+    protected function prepareConditionArguments($condition, array $args)
+    {
+        // Default operator
+        $operator = Sql::ALL;
+
+        if (! is_array($condition) && ! empty($args)) {
+            // Variadic
+            $condition = [(string) $condition => $args];
+        } else {
+            // Array or string format
+            $operator = array_shift($args) ?: $operator;
+        }
+
+        return [$condition, $operator];
+    }
+
+    /**
+     * Clone the properties provided by this trait
+     *
+     * Shall be called by using classes in their __clone()
+     */
+    protected function cloneWhere()
+    {
+        if ($this->where !== null) {
+            $this->cloneCondition($this->where);
+        }
+    }
+
+    /**
+     * Clone a condition in-place
+     *
+     * @param array $condition As returned by {@link buildCondition()}
+     */
+    protected function cloneCondition(array &$condition)
+    {
+        foreach ($condition as &$subCondition) {
+            if (is_array($subCondition)) {
+                $this->cloneCondition($subCondition);
+            } elseif ($subCondition instanceof ExpressionInterface || $subCondition instanceof Select) {
+                $subCondition = clone $subCondition;
+            }
+        }
+        unset($subCondition);
+    }
+}