Connection::createDBConnection() - Code Metrics - Inspection of "More check" - Ysurac/FlightAirMap - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( 9276af...006240 )

by Yannick

created 2017-02-09 20:18 UTC

Connection::createDBConnection() F

↳ Parent: Connection

Complexity

Conditions	25
Paths	1248

Size

Total Lines	78
Code Lines	63

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
cc	25
eloc	63
nc	1248
nop	3
dl	0
loc	78
rs	2.3445
c	0
b	0
f	0

How to fix Long Method Complexity

<?php
require_once(dirname(__FILE__).'/settings.php');

class Connection{
	public $db = null;
	public $dbs = array();
	public $latest_schema = 35;
	
	public function __construct($dbc = null,$dbname = null,$user = null,$pass = null) {
	    global $globalDBdriver;
	    if ($dbc === null) {
		if ($this->db === null && $dbname === null) {
		    if ($user === null && $pass === null) {
			$this->createDBConnection();
		    } else {
			$this->createDBConnection(null,$user,$pass);
		    }
		} else {
		    $this->createDBConnection($dbname);
		}
	    } elseif ($dbname === null || $dbname === 'default') {
		$this->db = $dbc;
		if ($this->connectionExists() === false) {
			/*
			echo 'Restart Connection !!!'."\n";
			$e = new \Exception;
			var_dump($e->getTraceAsString());
			*/
			$this->createDBConnection();
		}
	    } else {
		//$this->connectionExists();
		$this->dbs[$dbname] = $dbc;
	    }
	}

	public function db() {
		if ($this->db === null) {
			$this->__construct();
		}
		if ($this->db === null) {
			echo 'Can\'t connect to database. Check configuration and database status.';
			die;
		} else {
			return $this->db;
		}
	}

	/**
	* Creates the database connection
	*
	* @return Boolean of the database connection
	*
	*/

	public function createDBConnection($DBname = null, $user = null, $pass = null)
	{
		global $globalDBdriver, $globalDBhost, $globalDBuser, $globalDBpass, $globalDBname, $globalDebug, $globalDB, $globalDBport, $globalDBTimeOut, $globalDBretry, $globalDBPersistent;
		if ($DBname === null) {
			if ($user === null && $pass === null) {
				$DBname = 'default';
				$globalDBSdriver = $globalDBdriver;
				$globalDBShost = $globalDBhost;
				$globalDBSname = $globalDBname;
				$globalDBSuser = $globalDBuser;
				$globalDBSpass = $globalDBpass;
				if (!isset($globalDBport) || $globalDBport === NULL || $globalDBport == '') $globalDBSport = 3306;
				else $globalDBSport = $globalDBport;
			} else {
				$DBname = 'default';
				$globalDBSdriver = $globalDBdriver;
				$globalDBShost = $globalDBhost;
				$globalDBSname = $globalDBname;
				$globalDBSuser = $user;
				$globalDBSpass = $pass;
				if (!isset($globalDBport) || $globalDBport === NULL || $globalDBport == '') $globalDBSport = 3306;
				else $globalDBSport = $globalDBport;
			}
		} else {
			$globalDBSdriver = $globalDB[$DBname]['driver'];
			$globalDBShost = $globalDB[$DBname]['host'];
			$globalDBSname = $globalDB[$DBname]['name'];
			$globalDBSuser = $globalDB[$DBname]['user'];
			$globalDBSpass = $globalDB[$DBname]['pass'];
			if (isset($globalDB[$DBname]['port'])) $globalDBSport = $globalDB[$DBname]['port'];
			else $globalDBSport = 3306;
		}
		// Set number of try to connect to DB
		if (!isset($globalDBretry) || $globalDBretry == '' || $globalDBretry === NULL) $globalDBretry = 5;
		$i = 0;
		while (true) {
			try {
				if ($globalDBSdriver == 'mysql') {
					$this->dbs[$DBname] = new PDO("$globalDBSdriver:host=$globalDBShost;port=$globalDBSport;dbname=$globalDBSname;charset=utf8", $globalDBSuser,  $globalDBSpass);
					$this->dbs[$DBname]->setAttribute(PDO::MYSQL_ATTR_INIT_COMMAND, "SET NAMES 'utf8'");
					$this->dbs[$DBname]->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
					$this->dbs[$DBname]->setAttribute(PDO::ATTR_CASE,PDO::CASE_LOWER);
					if (!isset($globalDBTimeOut)) $this->dbs[$DBname]->setAttribute(PDO::ATTR_TIMEOUT,500);
					else $this->dbs[$DBname]->setAttribute(PDO::ATTR_TIMEOUT,$globalDBTimeOut);
					if (!isset($globalDBPersistent)) $this->dbs[$DBname]->setAttribute(PDO::ATTR_PERSISTENT,true);
					else $this->dbs[$DBname]->setAttribute(PDO::ATTR_PERSISTENT,$globalDBPersistent);
					$this->dbs[$DBname]->setAttribute(PDO::ATTR_EMULATE_PREPARES, true);
					$this->dbs[$DBname]->setAttribute(PDO::MYSQL_ATTR_USE_BUFFERED_QUERY, true);
					// Workaround against "ONLY_FULL_GROUP_BY" mode
					// to enable it : $this->dbs[$DBname]->exec('SET sql_mode = "NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION,ONLY_FULL_GROUP_BY"');
					$this->dbs[$DBname]->exec('SET sql_mode = "NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION"');
					// Force usage of UTC
					$this->dbs[$DBname]->exec('SET SESSION time_zone = "+00:00"');
					//$this->dbs[$DBname]->exec('SET @@session.time_zone = "+00:00"');
				} else {
					$this->dbs[$DBname] = new PDO("$globalDBSdriver:host=$globalDBShost;port=$globalDBSport;dbname=$globalDBSname;options='--client_encoding=utf8'", $globalDBSuser,  $globalDBSpass);
					//$this->dbs[$DBname]->setAttribute(PDO::MYSQL_ATTR_INIT_COMMAND, "SET NAMES 'utf8'");
					$this->dbs[$DBname]->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
					$this->dbs[$DBname]->setAttribute(PDO::ATTR_CASE,PDO::CASE_LOWER);
					if (!isset($globalDBTimeOut)) $this->dbs[$DBname]->setAttribute(PDO::ATTR_TIMEOUT,200);
					else $this->dbs[$DBname]->setAttribute(PDO::ATTR_TIMEOUT,$globalDBTimeOut);
					if (!isset($globalDBPersistent)) $this->dbs[$DBname]->setAttribute(PDO::ATTR_PERSISTENT,true);
					else $this->dbs[$DBname]->setAttribute(PDO::ATTR_PERSISTENT,$globalDBPersistent);
					$this->dbs[$DBname]->setAttribute(PDO::ATTR_EMULATE_PREPARES, true);
					$this->dbs[$DBname]->exec('SET timezone="UTC"');
				}
				break;
			} catch(PDOException $e) {
				$i++;
				if (isset($globalDebug) && $globalDebug) echo 'Error connecting to DB: '.$globalDBSname.' - Error: '.$e->getMessage()."\n";
				//exit;
				if ($i > $globalDBretry) return false;
				//return false;
			}
		}
		if ($DBname === 'default') $this->db = $this->dbs['default'];
		return true;
	}

	public function tableExists($table)
	{
		global $globalDBdriver, $globalDBname;
		if ($globalDBdriver == 'mysql') {
			$query = "SHOW TABLES LIKE '".$table."'";
		} else {
			$query = "SELECT * FROM pg_catalog.pg_tables WHERE tablename = '".$table."'";
		}
		if ($this->db == NULL) return false;
		try {
			//$Connection = new Connection();
			$results = $this->db->query($query);

		} catch(PDOException $e) {
			return false;
		}
		if($results->rowCount()>0) {
		    return true; 
		}
		else return false;
	}

	public function connectionExists()
	{
		global $globalDBdriver, $globalDBCheckConnection;
		if (isset($globalDBCheckConnection) && $globalDBCheckConnection === FALSE) return true;
		$query = "SELECT 1 + 1";
		if ($this->db === null) return false;
		try {
			$sum = @$this->db->query($query);

			if ($sum instanceof \PDOStatement) {
				$sum = $sum->fetchColumn(0);
			} else $sum = 0;
			if (intval($sum) !== 2) {
			     return false;
			}
			
		} catch(PDOException $e) {
			if($e->getCode() != 'HY000' || !stristr($e->getMessage(), 'server has gone away')) {
            			throw $e;
	                }
	                //echo 'error ! '.$e->getMessage();
			return false;
		}
		return true; 
	}

	/*
	* Check if index exist
	*/
	public function indexExists($table,$index)
	{
		global $globalDBdriver, $globalDBname;
		if ($globalDBdriver == 'mysql') {
			$query = "SELECT COUNT(*) as nb FROM INFORMATION_SCHEMA.STATISTICS WHERE table_schema=DATABASE() AND table_name='".$table."' AND index_name='".$index."'";
		} else {
			$query = "SELECT count(*) as nb FROM pg_class c JOIN pg_namespace n ON n.oid = c.relnamespace WHERE c.relname = '".$index."' AND n.nspname = '".$table."'";
		}
		try {
			//$Connection = new Connection();
			$results = $this->db->query($query);

		} catch(PDOException $e) {
			return false;
		}
		$nb = $results->fetchAll(PDO::FETCH_ASSOC);
		if($nb[0]['nb'] > 0) {
			return true; 
		}
		else return false;
	}

	/*
	* Get columns name of a table
	* @return Array all column name in table
	*/
	public function getColumnName($table)
	{
		$query = "SELECT * FROM ".$table." LIMIT 0";
		try {
			$results = $this->db->query($query);

		} catch(PDOException $e) {
			return "error : ".$e->getMessage()."\n";
		}
		$columns = array();
		$colcnt = $results->columnCount();
		for ($i = 0; $i < $colcnt; $i++) {
			$col = $results->getColumnMeta($i);
			$columns[] = $col['name'];
		}
		return $columns;
	}

	public function getColumnType($table,$column) {
		$select = $this->db->query('SELECT '.$column.' FROM '.$table);

		$tomet = $select->getColumnMeta(0);
		return $tomet['native_type'];
	}

	/*
	* Check if a column name exist in a table
	* @return Boolean column exist or not
	*/
	public function checkColumnName($table,$name)
	{
		global $globalDBdriver, $globalDBname;
		if ($globalDBdriver == 'mysql') {
			$query = "SELECT COUNT(*) as nb FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_SCHEMA = :database AND TABLE_NAME = :table AND COLUMN_NAME = :name LIMIT 1";
		} else {
			$query = "SELECT COUNT(*) as nb FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_CATALOG = :database AND TABLE_NAME = :table AND COLUMN_NAME = :name LIMIT 1";
		}
			try {
				$sth = $this->db()->prepare($query);

				$sth->execute(array(':database' => $globalDBname,':table' => $table,':name' => $name));
			} catch(PDOException $e) {
				echo "error : ".$e->getMessage()."\n";
			}
			$result = $sth->fetch(PDO::FETCH_ASSOC);
			$sth->closeCursor();
			if ($result['nb'] > 0) return true;
			else return false;
/*		} else {
			$query = "SELECT * FROM ".$table." LIMIT 0";
			try {
				$results = $this->db->query($query);
			} catch(PDOException $e) {
				return "error : ".$e->getMessage()."\n";
			}
			$colcnt = $results->columnCount();
			for ($i = 0; $i < $colcnt; $i++) {
				$col = $results->getColumnMeta($i);
				if ($name == $col['name']) return true;
			}
			return false;
		}
*/
	}

	/*
	* Get schema version
	* @return integer schema version
	*/
	public function check_schema_version() {
		$version = 0;
		if ($this->tableExists('aircraft')) {
			if (!$this->tableExists('config')) {
	    			$version = '1';
	    			return $version;
			} else {
				$query = "SELECT value FROM config WHERE name = 'schema_version' LIMIT 1";
				try {
					$sth = $this->db->prepare($query);
					$sth->execute();
				} catch(PDOException $e) {
					return "error : ".$e->getMessage()."\n";
				}
				$result = $sth->fetch(PDO::FETCH_ASSOC);
				$sth->closeCursor();
				return $result['value'];
			}
		} else return $version;
	}
	
	/*
	* Check if schema version is latest_schema
	* @return Boolean if latest version or not
	*/
	public function latest() {
	    if ($this->check_schema_version() == $this->latest_schema) return true;
	    else return false;
	}

}
?>


1			<?php
2			require_once(dirname(__FILE__).'/settings.php');
3
4			class Connection{
5			public $db = null;
6			public $dbs = array();
7			public $latest_schema = 35;
8
9			public function __construct($dbc = null,$dbname = null,$user = null,$pass = null) {
10			global $globalDBdriver;
11			if ($dbc === null) {
12			if ($this->db === null && $dbname === null) {
13			if ($user === null && $pass === null) {
14			$this->createDBConnection();
15			} else {
16			$this->createDBConnection(null,$user,$pass);
17			}
18			} else {
19			$this->createDBConnection($dbname);
20			}
21			} elseif ($dbname === null \|\| $dbname === 'default') {
22			$this->db = $dbc;
23			if ($this->connectionExists() === false) {
24			/*
25			echo 'Restart Connection !!!'."\n";
26			$e = new \Exception;
27			var_dump($e->getTraceAsString());
28			*/
29			$this->createDBConnection();
30			}
31			} else {
32			//$this->connectionExists();
33			$this->dbs[$dbname] = $dbc;
34			}
35			}
36
37			public function db() {
38			if ($this->db === null) {
39			$this->__construct();
40			}
41			if ($this->db === null) {
42			echo 'Can\'t connect to database. Check configuration and database status.';
43			die;
44			} else {
45			return $this->db;
46			}
47			}
48
49			/**
50			* Creates the database connection
51			*
52			* @return Boolean of the database connection
53			*
54			*/
55
56			public function createDBConnection($DBname = null, $user = null, $pass = null)
57			{
58			global $globalDBdriver, $globalDBhost, $globalDBuser, $globalDBpass, $globalDBname, $globalDebug, $globalDB, $globalDBport, $globalDBTimeOut, $globalDBretry, $globalDBPersistent;
59			if ($DBname === null) {
60			if ($user === null && $pass === null) {
61			$DBname = 'default';
62			$globalDBSdriver = $globalDBdriver;
63			$globalDBShost = $globalDBhost;
64			$globalDBSname = $globalDBname;
65			$globalDBSuser = $globalDBuser;
66			$globalDBSpass = $globalDBpass;
67			if (!isset($globalDBport) \|\| $globalDBport === NULL \|\| $globalDBport == '') $globalDBSport = 3306;
68			else $globalDBSport = $globalDBport;
69			} else {
70			$DBname = 'default';
71			$globalDBSdriver = $globalDBdriver;
72			$globalDBShost = $globalDBhost;
73			$globalDBSname = $globalDBname;
74			$globalDBSuser = $user;
75			$globalDBSpass = $pass;
76			if (!isset($globalDBport) \|\| $globalDBport === NULL \|\| $globalDBport == '') $globalDBSport = 3306;
77			else $globalDBSport = $globalDBport;
78			}
79			} else {
80			$globalDBSdriver = $globalDB[$DBname]['driver'];
81			$globalDBShost = $globalDB[$DBname]['host'];
82			$globalDBSname = $globalDB[$DBname]['name'];
83			$globalDBSuser = $globalDB[$DBname]['user'];
84			$globalDBSpass = $globalDB[$DBname]['pass'];
85			if (isset($globalDB[$DBname]['port'])) $globalDBSport = $globalDB[$DBname]['port'];
86			else $globalDBSport = 3306;
87			}
88			// Set number of try to connect to DB
89			if (!isset($globalDBretry) \|\| $globalDBretry == '' \|\| $globalDBretry === NULL) $globalDBretry = 5;
90			$i = 0;
91			while (true) {
92			try {
93			if ($globalDBSdriver == 'mysql') {
94			$this->dbs[$DBname] = new PDO("$globalDBSdriver:host=$globalDBShost;port=$globalDBSport;dbname=$globalDBSname;charset=utf8", $globalDBSuser, $globalDBSpass);
95			$this->dbs[$DBname]->setAttribute(PDO::MYSQL_ATTR_INIT_COMMAND, "SET NAMES 'utf8'");
96			$this->dbs[$DBname]->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
97			$this->dbs[$DBname]->setAttribute(PDO::ATTR_CASE,PDO::CASE_LOWER);
98			if (!isset($globalDBTimeOut)) $this->dbs[$DBname]->setAttribute(PDO::ATTR_TIMEOUT,500);
99			else $this->dbs[$DBname]->setAttribute(PDO::ATTR_TIMEOUT,$globalDBTimeOut);
100			if (!isset($globalDBPersistent)) $this->dbs[$DBname]->setAttribute(PDO::ATTR_PERSISTENT,true);
101			else $this->dbs[$DBname]->setAttribute(PDO::ATTR_PERSISTENT,$globalDBPersistent);
102			$this->dbs[$DBname]->setAttribute(PDO::ATTR_EMULATE_PREPARES, true);
103			$this->dbs[$DBname]->setAttribute(PDO::MYSQL_ATTR_USE_BUFFERED_QUERY, true);
104			// Workaround against "ONLY_FULL_GROUP_BY" mode
105			// to enable it : $this->dbs[$DBname]->exec('SET sql_mode = "NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION,ONLY_FULL_GROUP_BY"');
106			$this->dbs[$DBname]->exec('SET sql_mode = "NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION"');
107			// Force usage of UTC
108			$this->dbs[$DBname]->exec('SET SESSION time_zone = "+00:00"');
109			//$this->dbs[$DBname]->exec('SET @@session.time_zone = "+00:00"');
110			} else {
111			$this->dbs[$DBname] = new PDO("$globalDBSdriver:host=$globalDBShost;port=$globalDBSport;dbname=$globalDBSname;options='--client_encoding=utf8'", $globalDBSuser, $globalDBSpass);
112			//$this->dbs[$DBname]->setAttribute(PDO::MYSQL_ATTR_INIT_COMMAND, "SET NAMES 'utf8'");
113			$this->dbs[$DBname]->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
114			$this->dbs[$DBname]->setAttribute(PDO::ATTR_CASE,PDO::CASE_LOWER);
115			if (!isset($globalDBTimeOut)) $this->dbs[$DBname]->setAttribute(PDO::ATTR_TIMEOUT,200);
116			else $this->dbs[$DBname]->setAttribute(PDO::ATTR_TIMEOUT,$globalDBTimeOut);
117			if (!isset($globalDBPersistent)) $this->dbs[$DBname]->setAttribute(PDO::ATTR_PERSISTENT,true);
118			else $this->dbs[$DBname]->setAttribute(PDO::ATTR_PERSISTENT,$globalDBPersistent);
119			$this->dbs[$DBname]->setAttribute(PDO::ATTR_EMULATE_PREPARES, true);
120			$this->dbs[$DBname]->exec('SET timezone="UTC"');
121			}
122			break;
123			} catch(PDOException $e) {
124			$i++;
125			if (isset($globalDebug) && $globalDebug) echo 'Error connecting to DB: '.$globalDBSname.' - Error: '.$e->getMessage()."\n";
126			//exit;
127			if ($i > $globalDBretry) return false;
128			//return false;
129			}
130			}
131			if ($DBname === 'default') $this->db = $this->dbs['default'];
132			return true;
133			}
134
135			public function tableExists($table)
136			{
137			global $globalDBdriver, $globalDBname;
138			if ($globalDBdriver == 'mysql') {
139			$query = "SHOW TABLES LIKE '".$table."'";
140			} else {
141			$query = "SELECT * FROM pg_catalog.pg_tables WHERE tablename = '".$table."'";
142			}
143			if ($this->db == NULL) return false;
144			try {
145			//$Connection = new Connection();
146			$results = $this->db->query($query);
			1 ignored issue – show Bug introduced 2016-08-01 12:53 UTC by Report Bug Copy Issue Report The method `query` cannot be called on `$this->db` (of type `null`). Methods can only be called on objects. This check looks for methods being called on variables that have been inferred to never be objects. Loading history...
147			} catch(PDOException $e) {
148			return false;
149			}
150			if($results->rowCount()>0) {
151			return true;
152			}
153			else return false;
154			}
155
156			public function connectionExists()
157			{
158			global $globalDBdriver, $globalDBCheckConnection;
159			if (isset($globalDBCheckConnection) && $globalDBCheckConnection === FALSE) return true;
160			$query = "SELECT 1 + 1";
161			if ($this->db === null) return false;
162			try {
163			$sum = @$this->db->query($query);
			1 ignored issue – show Bug introduced 2016-08-01 12:53 UTC by Report Bug Copy Issue Report The method `query` cannot be called on `$this->db` (of type `null`). Methods can only be called on objects. This check looks for methods being called on variables that have been inferred to never be objects. Loading history...
164			if ($sum instanceof \PDOStatement) {
165			$sum = $sum->fetchColumn(0);
166			} else $sum = 0;
167			if (intval($sum) !== 2) {
168			return false;
169			}
170
171			} catch(PDOException $e) {
172			if($e->getCode() != 'HY000' \|\| !stristr($e->getMessage(), 'server has gone away')) {
173			throw $e;
174			}
175			//echo 'error ! '.$e->getMessage();
176			return false;
177			}
178			return true;
179			}
180
181			/*
182			* Check if index exist
183			*/
184			public function indexExists($table,$index)
185			{
186			global $globalDBdriver, $globalDBname;
187			if ($globalDBdriver == 'mysql') {
188			$query = "SELECT COUNT(*) as nb FROM INFORMATION_SCHEMA.STATISTICS WHERE table_schema=DATABASE() AND table_name='".$table."' AND index_name='".$index."'";
189			} else {
190			$query = "SELECT count(*) as nb FROM pg_class c JOIN pg_namespace n ON n.oid = c.relnamespace WHERE c.relname = '".$index."' AND n.nspname = '".$table."'";
191			}
192			try {
193			//$Connection = new Connection();
194			$results = $this->db->query($query);
			1 ignored issue – show Bug introduced 2016-08-01 12:53 UTC by Report Bug Copy Issue Report The method `query` cannot be called on `$this->db` (of type `null`). Methods can only be called on objects. This check looks for methods being called on variables that have been inferred to never be objects. Loading history...
195			} catch(PDOException $e) {
196			return false;
197			}
198			$nb = $results->fetchAll(PDO::FETCH_ASSOC);
199			if($nb[0]['nb'] > 0) {
200			return true;
201			}
202			else return false;
203			}
204
205			/*
206			* Get columns name of a table
207			* @return Array all column name in table
208			*/
209			public function getColumnName($table)
210			{
211			$query = "SELECT * FROM ".$table." LIMIT 0";
212			try {
213			$results = $this->db->query($query);
			1 ignored issue – show Bug introduced 2017-01-19 14:35 UTC by Report Bug Copy Issue Report The method `query` cannot be called on `$this->db` (of type `null`). Methods can only be called on objects. This check looks for methods being called on variables that have been inferred to never be objects. Loading history...
214			} catch(PDOException $e) {
215			return "error : ".$e->getMessage()."\n";
216			}
217			$columns = array();
218			$colcnt = $results->columnCount();
219			for ($i = 0; $i < $colcnt; $i++) {
220			$col = $results->getColumnMeta($i);
221			$columns[] = $col['name'];
222			}
223			return $columns;
224			}
225
226			public function getColumnType($table,$column) {
227			$select = $this->db->query('SELECT '.$column.' FROM '.$table);
			1 ignored issue – show Bug introduced 2017-02-09 20:23 UTC by Report Bug Copy Issue Report The method `query` cannot be called on `$this->db` (of type `null`). Methods can only be called on objects. This check looks for methods being called on variables that have been inferred to never be objects. Loading history...
228			$tomet = $select->getColumnMeta(0);
229			return $tomet['native_type'];
230			}
231
232			/*
233			* Check if a column name exist in a table
234			* @return Boolean column exist or not
235			*/
236			public function checkColumnName($table,$name)
237			{
238			global $globalDBdriver, $globalDBname;
239			if ($globalDBdriver == 'mysql') {
240			$query = "SELECT COUNT(*) as nb FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_SCHEMA = :database AND TABLE_NAME = :table AND COLUMN_NAME = :name LIMIT 1";
241			} else {
242			$query = "SELECT COUNT(*) as nb FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_CATALOG = :database AND TABLE_NAME = :table AND COLUMN_NAME = :name LIMIT 1";
243			}
244			try {
245			$sth = $this->db()->prepare($query);
			1 ignored issue – show Bug introduced 2016-10-31 07:26 UTC by Report Bug Copy Issue Report The method `prepare` cannot be called on `$this->db()` (of type `null`). Methods can only be called on objects. This check looks for methods being called on variables that have been inferred to never be objects. Loading history...
246			$sth->execute(array(':database' => $globalDBname,':table' => $table,':name' => $name));
247			} catch(PDOException $e) {
248			echo "error : ".$e->getMessage()."\n";
249			}
250			$result = $sth->fetch(PDO::FETCH_ASSOC);
251			$sth->closeCursor();
252			if ($result['nb'] > 0) return true;
253			else return false;
254			/* } else {
255			$query = "SELECT * FROM ".$table." LIMIT 0";
256			try {
257			$results = $this->db->query($query);
258			} catch(PDOException $e) {
259			return "error : ".$e->getMessage()."\n";
260			}
261			$colcnt = $results->columnCount();
262			for ($i = 0; $i < $colcnt; $i++) {
263			$col = $results->getColumnMeta($i);
264			if ($name == $col['name']) return true;
265			}
266			return false;
267			}
268			*/
269			}
270
271			/*
272			* Get schema version
273			* @return integer schema version
274			*/
275			public function check_schema_version() {
276			$version = 0;
277			if ($this->tableExists('aircraft')) {
278			if (!$this->tableExists('config')) {
279			$version = '1';
280			return $version;
281			} else {
282			$query = "SELECT value FROM config WHERE name = 'schema_version' LIMIT 1";
283			try {
284			$sth = $this->db->prepare($query);
285			$sth->execute();
286			} catch(PDOException $e) {
287			return "error : ".$e->getMessage()."\n";
288			}
289			$result = $sth->fetch(PDO::FETCH_ASSOC);
290			$sth->closeCursor();
291			return $result['value'];
292			}
293			} else return $version;
294			}
295
296			/*
297			* Check if schema version is latest_schema
298			* @return Boolean if latest version or not
299			*/
300			public function latest() {
301			if ($this->check_schema_version() == $this->latest_schema) return true;
302			else return false;
303			}
304
305			}
306			?>
307

Ysurac / FlightAirMap

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Connection::createDBConnection() F

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