was created classes which update and delete records from database

Author: rubyqorn

src/sql/Delete.php

@@ -0,0 +1,47 @@
+<?php 
+
+namespace Manipulator\SQL;
+
+use Manipulator\SQL\Traits\Expressions;
+
+class Delete extends Query
+{
+    use Expressions;
+
+    /**
+     * Table name where will be
+     * happen manipualtions
+     * 
+     * @var string
+     */ 
+    protected $table;
+
+    /**
+     * Array with SQL statements
+     * 
+     * @var array 
+     */ 
+    protected $sql = [];
+
+    public function __construct(string $table)
+    {
+        $this->table = $table;
+
+        parent::__construct();
+
+        $this->dropRecord();
+    }
+
+    /**
+     * Set sql statement and return reference
+     * at this class
+     * 
+     * @return \Manipulator\SQL\Delete
+     */ 
+    protected function dropRecord()
+    {
+        $this->sql[] = "DELETE FROM {$this->table}";
+        return $this;
+    }
+
+}

src/sql/Query.php

@@ -54,7 +54,7 @@ public function get()
      * Prepare SQL statement and bind 
      * values with question marks.
      * Can be used with Insert and 
-     * Delete classes.
+     * Update classes.
      * 
      * @return bool
      */ 
@@ -68,6 +68,18 @@ public function push()
 
     }
 
+    /**
+     * This method can be used with Delete class
+     * when we need just to execute SQL statement
+     * and get number of effected rows
+     * 
+     * @return int
+     */ 
+    public function drop()
+    {
+        return $this->exec($this->convertSQLToString($this->sql));
+    }
+
     /**
      * This is abstaraction of fetchAll PDO method
      * 
@@ -92,6 +104,19 @@ protected function fetchColumn(\PDOStatement $statement)
         return $statement->fetchColumn();
     }
 
+    /**
+     * Execute SQL statement and return a number
+     * of executed rows
+     * 
+     * @param string $query 
+     * 
+     * @return int
+     */ 
+    protected function exec(string $query)
+    {
+        return $this->connection()->exec($query);
+    }
+
     /**
      * Pass needed query into query PDO method
      * 

src/sql/SQLManager.php

@@ -24,4 +24,24 @@ public function insert()
     {
         return new Insert($this->table);
     }
+
+    /**
+     * Update object creating
+     * 
+     * @return \Manipulator\SQL\Update
+     */ 
+    public function update()
+    {
+        return new Update($this->table);
+    }
+
+    /**
+     * Delete object creating
+     * 
+     * @return \Manipulator\SQL\Delete
+     */ 
+    public function delete()
+    {
+        return new Delete($this->table);
+    }
 }

src/sql/Update.php

@@ -0,0 +1,58 @@
+<?php
+
+namespace Manipulator\SQL;
+
+use Manipulator\SQL\Traits\Expressions;
+
+class Update extends Query
+{
+    use Expressions;
+
+    /**
+     * Table name where we will be
+     * maniulate data
+     * 
+     * @var string
+     */ 
+    protected $table;
+
+    /**
+     * Values which will be bind 
+     * in prepared statement with
+     * question marks
+     * 
+     * @var array
+     */ 
+    protected $values;
+
+    /**
+     * SQL statement
+     * 
+     * @var array
+     */ 
+    protected $sql = [];
+
+    public function __construct(string $table)
+    {
+        $this->table = $table;
+
+        parent::__construct();
+    }
+
+    /**
+     * Set SQL statement which update record into
+     * database
+     * 
+     * @param string $columns
+     * @param array $values 
+     * 
+     * @return \Manipulator\SQL\Update
+     */ 
+    public function set(string $columns, array $values)
+    {
+        $this->values = $values;
+
+        $this->sql[] = "UPDATE {$this->table} SET {$columns} ";
+        return $this;
+    }
+}