Adding TRUNCATE() and DROP() (#117)

* Adding truncate()

* Adding TruncateStatement for truncate()

* Adding example of truncate()

* Added drop() method

* A bit to fast on the commit.
Forgot TABLE IF EXISTS in the getDrop()

* Update DropStatement.php

* Update TruncateStatement.php

* Update Database.php

* Fixing CI issues

Author: kwhat

README.md

@@ -56,6 +56,11 @@ $deleteStatement = $pdo->delete()
                        ->where('id', '=', 1234);
 
 $affectedRows = $deleteStatement->execute();
+
+// TRUNCATE user
+$truncateStatement = $pdo->truncate('users');
+
+$truncateStatement->execute();
 ```
 
 > The `sqlsrv` extension will fail to connect when using error mode `PDO::ERRMODE_EXCEPTION` (default). To connect, you will need to explicitly pass `array(PDO::ATTR_ERRMODE => PDO::ERRMODE_WARNING)` (or `PDO::ERRMODE_SILENT`) into the constructor, or override the `getDefaultOptions()` method when using `sqlsrv`.

composer.json

@@ -18,7 +18,7 @@
         "docs": "https://github.com/FaaPz/PDO/blob/master/docs/README.md"
     },
     "require": {
-        "php": ">=5.3.0",
+        "php": ">=5.6.0",
         "ext-pdo": "*"
     },
     "autoload": {

src/Clause/ClauseContainer.php

@@ -17,5 +17,5 @@ abstract class ClauseContainer
     /**
      * @var array
      */
-    protected $container = array();
+    protected $container = [];
 }

src/Clause/HavingClause.php

@@ -97,7 +97,7 @@ public function __toString()
             return '';
         }
 
-        $args = array();
+        $args = [];
 
         foreach ($this->container as $having) {
             $args[] = $having;

src/Clause/JoinClause.php

@@ -68,7 +68,7 @@ public function __toString()
             return '';
         }
 
-        $args = array();
+        $args = [];
 
         foreach ($this->container as $join) {
             $args[] = $join;

src/Clause/WhereClause.php

@@ -222,7 +222,7 @@ public function __toString()
             return '';
         }
 
-        $args = array();
+        $args = [];
 
         foreach ($this->container as $where) {
             $args[] = $where;

src/Database.php

@@ -7,10 +7,12 @@
 
 namespace FaaPz\PDO;
 
-use FaaPz\PDO\Statement\SelectStatement;
+use FaaPz\PDO\Statement\DeleteStatement;
+use FaaPz\PDO\Statement\DropStatement;
 use FaaPz\PDO\Statement\InsertStatement;
+use FaaPz\PDO\Statement\SelectStatement;
+use FaaPz\PDO\Statement\TruncateStatement;
 use FaaPz\PDO\Statement\UpdateStatement;
-use FaaPz\PDO\Statement\DeleteStatement;
 
 /**
  * Class Database.
@@ -27,7 +29,7 @@ class Database extends \PDO
      * @param null  $pwd
      * @param array $options
      */
-    public function __construct($dsn, $usr = null, $pwd = null, array $options = array())
+    public function __construct($dsn, $usr = null, $pwd = null, array $options = [])
     {
         $options = $options + $this->getDefaultOptions();
 
@@ -39,20 +41,20 @@ public function __construct($dsn, $usr = null, $pwd = null, array $options = arr
      */
     protected function getDefaultOptions()
     {
-        return array(
-            \PDO::ATTR_ERRMODE => \PDO::ERRMODE_EXCEPTION,
-            \PDO::ATTR_DEFAULT_FETCH_MODE => \PDO::FETCH_ASSOC,
-            \PDO::ATTR_EMULATE_PREPARES => false,
-            \PDO::ATTR_STATEMENT_CLASS => array('FaaPz\\PDO\\Statement', array($this)),
-        );
+        return [
+            \PDO::ATTR_ERRMODE              => \PDO::ERRMODE_EXCEPTION,
+            \PDO::ATTR_DEFAULT_FETCH_MODE   => \PDO::FETCH_ASSOC,
+            \PDO::ATTR_EMULATE_PREPARES     => false,
+            \PDO::ATTR_STATEMENT_CLASS      => [Statement::class, [$this]],
+        ];
     }
 
     /**
      * @param array $columns
      *
      * @return SelectStatement
      */
-    public function select(array $columns = array('*'))
+    public function select(array $columns = ['*'])
     {
         return new SelectStatement($this, $columns);
     }
@@ -62,7 +64,7 @@ public function select(array $columns = array('*'))
      *
      * @return InsertStatement
      */
-    public function insert(array $columnsOrPairs = array())
+    public function insert(array $columnsOrPairs = [])
     {
         return new InsertStatement($this, $columnsOrPairs);
     }
@@ -72,7 +74,7 @@ public function insert(array $columnsOrPairs = array())
      *
      * @return UpdateStatement
      */
-    public function update(array $pairs = array())
+    public function update(array $pairs = [])
     {
         return new UpdateStatement($this, $pairs);
     }
@@ -86,4 +88,24 @@ public function delete($table = null)
     {
         return new DeleteStatement($this, $table);
     }
+
+    /**
+     * @param null $table
+     *
+     * @return TruncateStatement
+     */
+    public function truncate($table = null)
+    {
+        return new TruncateStatement($this, $table);
+    }
+
+    /**
+     * @param null $table
+     *
+     * @return DropStatement
+     */
+    public function drop($table = null)
+    {
+        return new DropStatement($this, $table);
+    }
 }

src/Statement/DropStatement.php

@@ -0,0 +1,48 @@
+<?php
+
+namespace FaaPz\PDO\Statement;
+
+use FaaPz\PDO\Database;
+
+class DropStatement extends StatementContainer
+{
+    /**
+     * Constructor.
+     *
+     * @param Database $dbh
+     * @param $table
+     */
+    public function __construct(Database $dbh, $table)
+    {
+        parent::__construct($dbh);
+
+        $this->setTable($table);
+    }
+
+    /**
+     * @return string
+     */
+    public function __toString()
+    {
+        if (empty($this->table)) {
+            trigger_error('No table is set for selection', E_USER_ERROR);
+        }
+
+        $sql = $this->getDrop().' '.$this->table;
+
+        return $sql;
+    }
+
+    protected function getDrop()
+    {
+        return 'DROP TABLE IF EXISTS';
+    }
+
+    /**
+     * @return \PDOStatement
+     */
+    public function execute()
+    {
+        return parent::execute();
+    }
+}

src/Statement/SelectStatement.php

@@ -61,7 +61,7 @@ public function __construct(Database $dbh, array $columns)
         parent::__construct($dbh);
 
         if (empty($columns)) {
-            $columns = array('*');
+            $columns = ['*'];
         }
 
         $this->setColumns($columns);

src/Statement/StatementContainer.php

@@ -27,17 +27,17 @@ abstract class StatementContainer
     /**
      * @var array
      */
-    protected $columns = array();
+    protected $columns = [];
 
     /**
      * @var array
      */
-    protected $values = array();
+    protected $values = [];
 
     /**
      * @var array
      */
-    protected $placeholders = array();
+    protected $placeholders = [];
 
     /**
      * @var
@@ -435,8 +435,9 @@ public function execute()
     /**
      * Bind values to their parameters in the given statement.
      *
-     * @param  \PDOStatement $statement
-     * @param  array  $bindings
+     * @param \PDOStatement $statement
+     * @param array         $bindings
+     *
      * @return void
      */
     protected function bindValues($statement, $bindings)
@@ -500,7 +501,7 @@ protected function getPlaceholders()
     {
         $placeholders = $this->placeholders;
 
-        $this->placeholders = array();
+        $this->placeholders = [];
 
         return '( '.implode(' , ', $placeholders).' )';
     }
@@ -511,7 +512,7 @@ protected function getPlaceholders()
     protected function setPlaceholders(array $values)
     {
         foreach ($values as $value) {
-            $this->placeholders[] = $this->setPlaceholder('?', is_null($value) ? 1 : (is_array($value) ? sizeof($value) : 1));
+            $this->placeholders[] = $this->setPlaceholder('?', is_null($value) ? 1 : (is_array($value) ? count($value) : 1));
         }
     }
 
@@ -536,18 +537,18 @@ private function getStatement()
     }
 
     /**
-     * @param $text
+     * @param string $text
      * @param int    $count
      * @param string $separator
      *
      * @return string
      */
     private function setPlaceholder($text, $count = 0, $separator = ' , ')
     {
-        $result = array();
+        $result = [];
 
         if ($count > 0) {
-            for ($x = 0; $x < $count; ++$x) {
+            for ($x = 0; $x < $count; $x++) {
                 $result[] = $text;
             }
         }