initial commit

src/ZM/DB/UpdateBody.php

@@ -0,0 +1,50 @@
+<?php
+
+
+namespace ZM\DB;
+
+
+use ZM\Exception\DbException;
+
+class UpdateBody
+{
+    use WhereBody;
+
+    /**
+     * @var Table
+     */
+    private $table;
+    /**
+     * @var array
+     */
+    private $set_value;
+    /**
+     * UpdateBody constructor.
+     * @param Table $table
+     * @param array $set_value
+     */
+    public function __construct(Table $table, array $set_value) {
+        $this->table = $table;
+        $this->set_value = $set_value;
+    }
+
+    /**
+     * @throws DbException
+     */
+    public function save(){
+        $arr = [];
+        $msg = [];
+        foreach($this->set_value as $k => $v) {
+            $msg []= $k .' = ?';
+            $arr[]=$v;
+        }
+        if(($msg ?? []) == []) throw new DbException('update value sets can not be empty!');
+        $line = 'UPDATE '.$this->table->getTableName().' SET '.implode(', ', $msg);
+        if($this->where_thing != []) {
+            list($sql, $param) = $this->getWhereSQL();
+            $arr = array_merge($arr, $param);
+            $line .= ' WHERE '.$sql;
+        }
+        return DB::rawQuery($line, $arr);
+    }
+}