DbPgSQL::create_table() - Code Metrics - Inspection of "Added scrutinizer config" - henrystivens/upload-image-and-data - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Branch — master (024767)

by Henry Stivens

created 2017-03-12 22:18 UTC

DbPgSQL::create_table() F

↳ Parent: Project

Complexity

Conditions	20
Paths	> 20000

Size

Total Lines	66
Code Lines	45

Duplication

Lines	66
Ratio	100 %

Importance

Changes

Metric	Value
cc	20
eloc	45
nc	23345
nop	3
dl	66
loc	66
rs	2.774
c	0
b	0
f	0

How to fix Long Method Complexity

<?php
/**
 * KumbiaPHP web & app Framework
 *
 * LICENSE
 *
 * This source file is subject to the new BSD license that is bundled
 * with this package in the file LICENSE.txt.
 * It is also available through the world-wide-web at this URL:
 * http://wiki.kumbiaphp.com/Licencia
 * If you did not receive a copy of the license and are unable to
 * obtain it through the world-wide-web, please send an email
 * to [email protected] so we can send you a copy immediately.
 *
 * @category   Kumbia
 * @package    Db
 * @subpackage Adapters
 * @copyright  Copyright (c) 2005 - 2017 Kumbia Team (http://www.kumbiaphp.com)
 * @license    http://wiki.kumbiaphp.com/Licencia     New BSD License
 */

/**
 * PostgreSQL Database Support
 *
 * @category   Kumbia
 * @package    Db
 * @subpackage Adapters
 */
class DbPgSQL extends DbBase implements DbBaseInterface
{

    /**
     * Resource de la Conexion a PostgreSQL
     *
     * @var resource
     */
    public $id_connection;
    /**
     * Ultimo Resultado de una Query
     *
     * @var resource
     */
    public $last_result_query;
    /**
     * Ultima sentencia SQL enviada a PostgreSQL
     *
     * @var string
     */
    protected $last_query;
    /**
     * Ultimo error generado por PostgreSQL
     *
     * @var string
     */
    public $last_error;

    /**
     * Resultado de Array Asociativo
     *
     */
    const DB_ASSOC = PGSQL_ASSOC;

    /**
     * Resultado de Array Asociativo y Numerico
     *
     */
    const DB_BOTH = PGSQL_BOTH;

    /**
     * Resultado de Array Numerico
     *
     */
    const DB_NUM = PGSQL_NUM;


    /**
     * Tipo de Dato Integer
     *
     */
    const TYPE_INTEGER = 'INTEGER';

    /**
     * Tipo de Dato Date
     *
     */
    const TYPE_DATE = 'DATE';

    /**
     * Tipo de Dato Varchar
     *
     */
    const TYPE_VARCHAR = 'VARCHAR';

    /**
     * Tipo de Dato Decimal
     *
     */
    const TYPE_DECIMAL = 'DECIMAL';

    /**
     * Tipo de Dato Datetime
     *
     */
    const TYPE_DATETIME = 'DATETIME';

    /**
     * Tipo de Dato Char
     *
     */
    const TYPE_CHAR = 'CHAR';

    /**
     * Hace una conexion a la base de datos de PostgreSQL
     *
     * @param array $config
     * @return bool
     */
    public function connect($config)
    {

        if (!extension_loaded('pgsql')) {
            throw new KumbiaException('Debe cargar la extensión de PHP llamada php_pgsql');
        }

        if (!isset($config['port']) || !$config['port']) {
            $config['port'] = 5432;
        }

        if ($this->id_connection = pg_connect("host={$config['host']} user={$config['username']} password={$config['password']} dbname={$config['name']} port={$config['port']}", PGSQL_CONNECT_FORCE_NEW)) {
            return true;
        } else {
            throw new KumbiaException($this->error("No se puede conectar a la base de datos"));
        }
    }

    /**
     * Efectua operaciones SQL sobre la base de datos
     *
     * @param string $sqlQuery
     * @return resource or false
     */
    function query($sqlQuery)
    {
        $this->debug($sqlQuery);
        if ($this->logger) {
            Logger::debug($sqlQuery);
        }

        $this->last_query = $sqlQuery;
        if ($resultQuery = @pg_query($this->id_connection, $sqlQuery)) {
            $this->last_result_query = $resultQuery;
            return $resultQuery;
        } else {
            throw new KumbiaException($this->error(" al ejecutar <em>'$sqlQuery'</em>"));
        }
    }

    /**
     * Cierra la Conexión al Motor de Base de datos
     */
    function close()
    {
        if ($this->id_connection) {
            return pg_close($this->id_connection);
        } else {
            return false;
        }
    }

    /**
     * Devuelve fila por fila el contenido de un select
     *
     * @param resource $resultQuery
     * @param int $opt
     * @return array
     */
    function fetch_array($resultQuery=NULL, $opt=PGSQL_BOTH)
    {

        if (!$resultQuery) {
            $resultQuery = $this->last_result_query;
            if (!$resultQuery) {
                return false;
            }
        }
        return pg_fetch_array($resultQuery, NULL, $opt);
    }

    /**
     * Constructor de la Clase
     *
     * @param array $config
     */
    function __construct($config)
    {
        $this->connect($config);
    }

    /**
     * Devuelve el numero de filas de un select
     */
    function num_rows($resultQuery=NULL)
    {

        if (!$resultQuery) {
            $resultQuery = $this->last_result_query;
            if (!$resultQuery) {
                return false;
            }
        }
        if (($numberRows = pg_num_rows($resultQuery)) !== false) {
            return $numberRows;
        } else {
            throw new KumbiaException($this->error());
        }
    }

    /**
     * Devuelve el nombre de un campo en el resultado de un select
     *
     * @param int $number
     * @param resource $resultQuery
     * @return string
     */
    function field_name($number, $resultQuery=NULL)
    {

        if (!$resultQuery) {
            $resultQuery = $this->last_result_query;
            if (!$resultQuery) {
                return false;
            }
        }
        if (($fieldName = pg_field_name($resultQuery, $number)) !== false) {
            return $fieldName;
        } else {
            throw new KumbiaException($this->error());
        }
    }

    /**
     * Se Mueve al resultado indicado por $number en un select
     *
     * @param int $number
     * @param resource $resultQuery
     * @return boolean
     */
    function data_seek($number, $resultQuery=NULL)
    {
        if (!$resultQuery) {
            $resultQuery = $this->last_result_query;
            if (!$resultQuery) {
                return false;
            }
        }
        if (($success = pg_result_seek($resultQuery, $number)) !== false) {
            return $success;
        } else {
            throw new KumbiaException($this->error());
        }
    }

    /**
     * Numero de Filas afectadas en un insert, update o delete
     *
     * @param resource $resultQuery
     * @return int
     */
    function affected_rows($resultQuery=NULL)
    {

        if (!$resultQuery) {
            $resultQuery = $this->last_result_query;
            if (!$resultQuery) {
                return false;
            }
        }
        if (($numberRows = pg_affected_rows($resultQuery)) !== false) {
            return $numberRows;
        } else {
            throw new KumbiaException($this->error());
        }
    }

    /**
     * Devuelve el error de PostgreSQL
     *
     * @return string
     */
    function error($err='')
    {
        if (!$this->id_connection) {
            $this->last_error = @pg_last_error() ? @pg_last_error() . $err : "[Error Desconocido en PostgreSQL \"$err\"]";
            if ($this->logger) {
                Logger::error($this->last_error);
            }
            return $this->last_error;
        }
        $this->last_error = @pg_last_error() ? @pg_last_error() . $err : "[Error Desconocido en PostgreSQL: $err]";
        $this->last_error.= $err;
        if ($this->logger) {
            Logger::error($this->last_error);
        }
        return pg_last_error($this->id_connection) . $err;
    }

    /**
     * Devuelve el no error de PostgreSQL
     *
     * @return int ??
     */
    function no_error()
    {

        return 0; //Codigo de Error?
    }

    /**
     * Devuelve el ultimo id autonumerico generado en la BD
     *
     * @return int
     */
    public function last_insert_id($table='', $primary_key='')
    {

        $last_id = $this->fetch_one("SELECT CURRVAL('{$table}_{$primary_key}_seq')");
        return $last_id[0];
    }

    /**
     * Verifica si una tabla existe o no
     *
     * @param string $table
     * @return boolean
     */
    function table_exists($table, $schema='')
    {
        $table = addslashes(strtolower($table));
        if (strpos($table, ".")) {
            list($schema, $table) = explode(".", $table);
        }
        if ($schema == '') {
            $num = $this->fetch_one("SELECT COUNT(*) FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA = 'public' AND TABLE_NAME ='$table'");
        } else {
            $schema = addslashes(strtolower($schema));
            $num = $this->fetch_one("SELECT COUNT(*) FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA = '$schema' AND TABLE_NAME ='$table'");
        }
        return $num[0];
    }

    /**
     * Devuelve un LIMIT valido para un SELECT del RBDM
     *
     * @param string $sql consulta sql
     * @return string
     */
    public function limit($sql)
    {
        $params = Util::getParams(func_get_args());
        $sql_new = $sql;

        if (isset($params['limit']) && is_numeric($params['limit'])) {
            $sql_new.=" LIMIT $params[limit]";
        }

        if (isset($params['offset']) && is_numeric($params['offset'])) {
            $sql_new.=" OFFSET $params[offset]";
        }

        return $sql_new;
    }

    /**
     * Borra una tabla de la base de datos
     *
     * @param string $table
     * @return boolean
     */
    public function drop_table($table, $if_exists=true)
    {
        if ($if_exists) {
            if ($this->table_exists($table)) {
                return $this->query("DROP TABLE $table");
            } else {
                return true;
            }
        } else {
            return $this->query("DROP TABLE $table");
        }
    }

    /**
     * Crea una tabla utilizando SQL nativo del RDBM
     *
     * TODO:
     * - Falta que el parametro index funcione. Este debe listar indices compuestos multipes y unicos
     * - Agregar el tipo de tabla que debe usarse (PostgreSQL)
     * - Soporte para campos autonumericos
     * - Soporte para llaves foraneas
     *
     * @param string $table
     * @param array $definition
     * @return resource
     */
    public function create_table($table, $definition, $index=array())
    {
        $create_sql = "CREATE TABLE $table (";
        if (!is_array($definition)) {
            throw new KumbiaException("Definición invalida para crear la tabla '$table'");
        }
        $create_lines = array();
        $index = array();
        $unique_index = array();
        $primary = array();
        //$not_null = "";
        //$size = "";
        foreach ($definition as $field => $field_def) {
            if (isset($field_def['not_null'])) {
                $not_null = $field_def['not_null'] ? 'NOT NULL' : '';
            } else {
                $not_null = "";
            }
            if (isset($field_def['size'])) {
                $size = $field_def['size'] ? '(' . $field_def['size'] . ')' : '';
            } else {
                $size = "";
            }
            if (isset($field_def['index'])) {
                if ($field_def['index']) {
                    $index[] = "INDEX($field)";
                }
            }
            if (isset($field_def['unique_index'])) {
                if ($field_def['unique_index']) {
                    $index[] = "UNIQUE($field)";
                }
            }
            if (isset($field_def['primary'])) {
                if ($field_def['primary']) {
                    $primary[] = "$field";
                }
            }
            if (isset($field_def['auto'])) {
                if ($field_def['auto']) {
                    $field_def['type'] = "SERIAL";
                }
            }
            if (isset($field_def['extra'])) {
                $extra = $field_def['extra'];
            } else {
                $extra = "";
            }
            $create_lines[] = "$field " . $field_def['type'] . $size . ' ' . $not_null . ' ' . $extra;
        }
        $create_sql.= join(',', $create_lines);
        $last_lines = array();
        if (count($primary)) {
            $last_lines[] = 'PRIMARY KEY(' . join(",", $primary) . ')';
        }
        if (count($index)) {
            $last_lines[] = join(',', $index);
        }
        if (count($unique_index)) {
            $last_lines[] = join(',', $unique_index);
        }
        if (count($last_lines)) {
            $create_sql.= ',' . join(',', $last_lines) . ')';
        }
        return $this->query($create_sql);
    }

    /**
     * Listar las tablas en la base de datos
     *
     * @return array
     */
    public function list_tables()
    {
        return $this->fetch_all("SELECT c.relname AS table FROM pg_class c, pg_user u "
                . "WHERE c.relowner = u.usesysid AND c.relkind = 'r' "
                . "AND NOT EXISTS (SELECT 1 FROM pg_views WHERE viewname = c.relname) "
                . "AND c.relname !~ '^(pg_|sql_)' UNION "
                . "SELECT c.relname AS table_name FROM pg_class c "
                . "WHERE c.relkind = 'r' "
                . "AND NOT EXISTS (SELECT 1 FROM pg_views WHERE viewname = c.relname) "
                . "AND NOT EXISTS (SELECT 1 FROM pg_user WHERE usesysid = c.relowner) "
                . "AND c.relname !~ '^pg_'");
    }

    /**
     * Listar los campos de una tabla
     *
     * @param string $table
     * @return array
     */
    public function describe_table($table, $schema='')
    {
        $describe = $this->fetch_all("SELECT a.attname AS Field, t.typname AS Type,
                CASE WHEN attnotnull=false THEN 'YES' ELSE 'NO' END AS Null,
                CASE WHEN (select cc.contype FROM pg_catalog.pg_constraint cc WHERE
                cc.conrelid = c.oid AND cc.conkey[1] = a.attnum limit 1)='p' THEN 'PRI' ELSE ''
                END AS Key, CASE WHEN atthasdef=true THEN TRUE ELSE NULL END AS Default
                FROM pg_catalog.pg_class c, pg_catalog.pg_attribute a,
                pg_catalog.pg_type t WHERE c.relname = '$table' AND c.oid = a.attrelid
                AND a.attnum > 0 AND t.oid = a.atttypid order by a.attnum");
        $final_describe = array();
        foreach ($describe as $key => $value) {
            $final_describe[] = array(
                "Field" => $value["field"],
                "Type" => $value["type"],
                "Null" => $value["null"],
                "Key" => $value["key"],
                "Default" => $value["default"]
            );
        }
        return $final_describe;
    }

    /**
     * Devuelve fila por fila el contenido de un select
     *
     * @param resource $query_result
     * @param string $class clase de objeto
     * @return object
     */
    public function fetch_object($query_result=null, $class='stdClass')
    {
        if (!$query_result) {
            $query_result = $this->last_result_query;
        }
        return pg_fetch_object($query_result, null, $class);
    }

    /**
     * Devuelve la ultima sentencia sql ejecutada por el Adaptador
     *
     * @return string
     */
    public function last_sql_query()
    {
        return $this->last_query;
    }

}


1			<?php
2			/**
3			* KumbiaPHP web & app Framework
4			*
5			* LICENSE
6			*
7			* This source file is subject to the new BSD license that is bundled
8			* with this package in the file LICENSE.txt.
9			* It is also available through the world-wide-web at this URL:
10			* http://wiki.kumbiaphp.com/Licencia
11			* If you did not receive a copy of the license and are unable to
12			* obtain it through the world-wide-web, please send an email
13			* to [email protected] so we can send you a copy immediately.
14			*
15			* @category Kumbia
16			* @package Db
17			* @subpackage Adapters
18			* @copyright Copyright (c) 2005 - 2017 Kumbia Team (http://www.kumbiaphp.com)
19			* @license http://wiki.kumbiaphp.com/Licencia New BSD License
20			*/
21
22			/**
23			* PostgreSQL Database Support
24			*
25			* @category Kumbia
26			* @package Db
27			* @subpackage Adapters
28			*/
29			class DbPgSQL extends DbBase implements DbBaseInterface
30			{
31
32			/**
33			* Resource de la Conexion a PostgreSQL
34			*
35			* @var resource
36			*/
37			public $id_connection;
38			/**
39			* Ultimo Resultado de una Query
40			*
41			* @var resource
42			*/
43			public $last_result_query;
44			/**
45			* Ultima sentencia SQL enviada a PostgreSQL
46			*
47			* @var string
48			*/
49			protected $last_query;
50			/**
51			* Ultimo error generado por PostgreSQL
52			*
53			* @var string
54			*/
55			public $last_error;
56
57			/**
58			* Resultado de Array Asociativo
59			*
60			*/
61			const DB_ASSOC = PGSQL_ASSOC;
62
63			/**
64			* Resultado de Array Asociativo y Numerico
65			*
66			*/
67			const DB_BOTH = PGSQL_BOTH;
68
69			/**
70			* Resultado de Array Numerico
71			*
72			*/
73			const DB_NUM = PGSQL_NUM;
74
75
76			/**
77			* Tipo de Dato Integer
78			*
79			*/
80			const TYPE_INTEGER = 'INTEGER';
81
82			/**
83			* Tipo de Dato Date
84			*
85			*/
86			const TYPE_DATE = 'DATE';
87
88			/**
89			* Tipo de Dato Varchar
90			*
91			*/
92			const TYPE_VARCHAR = 'VARCHAR';
93
94			/**
95			* Tipo de Dato Decimal
96			*
97			*/
98			const TYPE_DECIMAL = 'DECIMAL';
99
100			/**
101			* Tipo de Dato Datetime
102			*
103			*/
104			const TYPE_DATETIME = 'DATETIME';
105
106			/**
107			* Tipo de Dato Char
108			*
109			*/
110			const TYPE_CHAR = 'CHAR';
111
112			/**
113			* Hace una conexion a la base de datos de PostgreSQL
114			*
115			* @param array $config
116			* @return bool
117			*/
118			public function connect($config)
119			{
120
121			if (!extension_loaded('pgsql')) {
122			throw new KumbiaException('Debe cargar la extensión de PHP llamada php_pgsql');
123			}
124
125			if (!isset($config['port']) \|\| !$config['port']) {
126			$config['port'] = 5432;
127			}
128
129			if ($this->id_connection = pg_connect("host={$config['host']} user={$config['username']} password={$config['password']} dbname={$config['name']} port={$config['port']}", PGSQL_CONNECT_FORCE_NEW)) {
130			return true;
131			} else {
132			throw new KumbiaException($this->error("No se puede conectar a la base de datos"));
133			}
134			}
135
136			/**
137			* Efectua operaciones SQL sobre la base de datos
138			*
139			* @param string $sqlQuery
140			* @return resource or false
141			*/
142			function query($sqlQuery)
143			{
144			$this->debug($sqlQuery);
145			if ($this->logger) {
146			Logger::debug($sqlQuery);
147			}
148
149			$this->last_query = $sqlQuery;
150			if ($resultQuery = @pg_query($this->id_connection, $sqlQuery)) {
151			$this->last_result_query = $resultQuery;
152			return $resultQuery;
153			} else {
154			throw new KumbiaException($this->error(" al ejecutar <em>'$sqlQuery'</em>"));
155			}
156			}
157
158			/**
159			* Cierra la Conexión al Motor de Base de datos
160			*/
161			function close()
162			{
163			if ($this->id_connection) {
164			return pg_close($this->id_connection);
165			} else {
166			return false;
167			}
168			}
169
170			/**
171			* Devuelve fila por fila el contenido de un select
172			*
173			* @param resource $resultQuery
174			* @param int $opt
175			* @return array
176			*/
177			function fetch_array($resultQuery=NULL, $opt=PGSQL_BOTH)
178			{
179
180			if (!$resultQuery) {
181			$resultQuery = $this->last_result_query;
182			if (!$resultQuery) {
183			return false;
184			}
185			}
186			return pg_fetch_array($resultQuery, NULL, $opt);
187			}
188
189			/**
190			* Constructor de la Clase
191			*
192			* @param array $config
193			*/
194			function __construct($config)
195			{
196			$this->connect($config);
197			}
198
199			/**
200			* Devuelve el numero de filas de un select
201			*/
202			function num_rows($resultQuery=NULL)
203			{
204
205			if (!$resultQuery) {
206			$resultQuery = $this->last_result_query;
207			if (!$resultQuery) {
208			return false;
209			}
210			}
211			if (($numberRows = pg_num_rows($resultQuery)) !== false) {
212			return $numberRows;
213			} else {
214			throw new KumbiaException($this->error());
215			}
216			}
217
218			/**
219			* Devuelve el nombre de un campo en el resultado de un select
220			*
221			* @param int $number
222			* @param resource $resultQuery
223			* @return string
224			*/
225			function field_name($number, $resultQuery=NULL)
226			{
227
228			if (!$resultQuery) {
229			$resultQuery = $this->last_result_query;
230			if (!$resultQuery) {
231			return false;
232			}
233			}
234			if (($fieldName = pg_field_name($resultQuery, $number)) !== false) {
235			return $fieldName;
236			} else {
237			throw new KumbiaException($this->error());
238			}
239			}
240
241			/**
242			* Se Mueve al resultado indicado por $number en un select
243			*
244			* @param int $number
245			* @param resource $resultQuery
246			* @return boolean
247			*/
248			function data_seek($number, $resultQuery=NULL)
249			{
250			if (!$resultQuery) {
251			$resultQuery = $this->last_result_query;
252			if (!$resultQuery) {
253			return false;
254			}
255			}
256			if (($success = pg_result_seek($resultQuery, $number)) !== false) {
257			return $success;
258			} else {
259			throw new KumbiaException($this->error());
260			}
261			}
262
263			/**
264			* Numero de Filas afectadas en un insert, update o delete
265			*
266			* @param resource $resultQuery
267			* @return int
268			*/
269			function affected_rows($resultQuery=NULL)
270			{
271
272			if (!$resultQuery) {
273			$resultQuery = $this->last_result_query;
274			if (!$resultQuery) {
275			return false;
276			}
277			}
278			if (($numberRows = pg_affected_rows($resultQuery)) !== false) {
279			return $numberRows;
280			} else {
281			throw new KumbiaException($this->error());
282			}
283			}
284
285			/**
286			* Devuelve el error de PostgreSQL
287			*
288			* @return string
289			*/
290			function error($err='')
291			{
292			if (!$this->id_connection) {
293			$this->last_error = @pg_last_error() ? @pg_last_error() . $err : "[Error Desconocido en PostgreSQL \"$err\"]";
294			if ($this->logger) {
295			Logger::error($this->last_error);
296			}
297			return $this->last_error;
298			}
299			$this->last_error = @pg_last_error() ? @pg_last_error() . $err : "[Error Desconocido en PostgreSQL: $err]";
300			$this->last_error.= $err;
301			if ($this->logger) {
302			Logger::error($this->last_error);
303			}
304			return pg_last_error($this->id_connection) . $err;
305			}
306
307			/**
308			* Devuelve el no error de PostgreSQL
309			*
310			* @return int ??
311			*/
312			function no_error()
313			{
314
315			return 0; //Codigo de Error?
316			}
317
318			/**
319			* Devuelve el ultimo id autonumerico generado en la BD
320			*
321			* @return int
322			*/
323			public function last_insert_id($table='', $primary_key='')
324			{
325
326			$last_id = $this->fetch_one("SELECT CURRVAL('{$table}_{$primary_key}_seq')");
327			return $last_id[0];
328			}
329
330			/**
331			* Verifica si una tabla existe o no
332			*
333			* @param string $table
334			* @return boolean
335			*/
336			function table_exists($table, $schema='')
337			{
338			$table = addslashes(strtolower($table));
339			if (strpos($table, ".")) {
340			list($schema, $table) = explode(".", $table);
341			}
342			if ($schema == '') {
343			$num = $this->fetch_one("SELECT COUNT(*) FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA = 'public' AND TABLE_NAME ='$table'");
344			} else {
345			$schema = addslashes(strtolower($schema));
346			$num = $this->fetch_one("SELECT COUNT(*) FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA = '$schema' AND TABLE_NAME ='$table'");
347			}
348			return $num[0];
349			}
350
351			/**
352			* Devuelve un LIMIT valido para un SELECT del RBDM
353			*
354			* @param string $sql consulta sql
355			* @return string
356			*/
357			public function limit($sql)
358			{
359			$params = Util::getParams(func_get_args());
360			$sql_new = $sql;
361
362			if (isset($params['limit']) && is_numeric($params['limit'])) {
363			$sql_new.=" LIMIT $params[limit]";
364			}
365
366			if (isset($params['offset']) && is_numeric($params['offset'])) {
367			$sql_new.=" OFFSET $params[offset]";
368			}
369
370			return $sql_new;
371			}
372
373			/**
374			* Borra una tabla de la base de datos
375			*
376			* @param string $table
377			* @return boolean
378			*/
379			public function drop_table($table, $if_exists=true)
380			{
381			if ($if_exists) {
382			if ($this->table_exists($table)) {
383			return $this->query("DROP TABLE $table");
384			} else {
385			return true;
386			}
387			} else {
388			return $this->query("DROP TABLE $table");
389			}
390			}
391
392			/**
393			* Crea una tabla utilizando SQL nativo del RDBM
394			*
395			* TODO:
396			* - Falta que el parametro index funcione. Este debe listar indices compuestos multipes y unicos
397			* - Agregar el tipo de tabla que debe usarse (PostgreSQL)
398			* - Soporte para campos autonumericos
399			* - Soporte para llaves foraneas
400			*
401			* @param string $table
402			* @param array $definition
403			* @return resource
404			*/
405			public function create_table($table, $definition, $index=array())
406			{
407			$create_sql = "CREATE TABLE $table (";
408			if (!is_array($definition)) {
409			throw new KumbiaException("Definición invalida para crear la tabla '$table'");
410			}
411			$create_lines = array();
412			$index = array();
413			$unique_index = array();
414			$primary = array();
415			//$not_null = "";
416			//$size = "";
417			foreach ($definition as $field => $field_def) {
418			if (isset($field_def['not_null'])) {
419			$not_null = $field_def['not_null'] ? 'NOT NULL' : '';
420			} else {
421			$not_null = "";
422			}
423			if (isset($field_def['size'])) {
424			$size = $field_def['size'] ? '(' . $field_def['size'] . ')' : '';
425			} else {
426			$size = "";
427			}
428			if (isset($field_def['index'])) {
429			if ($field_def['index']) {
430			$index[] = "INDEX($field)";
431			}
432			}
433			if (isset($field_def['unique_index'])) {
434			if ($field_def['unique_index']) {
435			$index[] = "UNIQUE($field)";
436			}
437			}
438			if (isset($field_def['primary'])) {
439			if ($field_def['primary']) {
440			$primary[] = "$field";
441			}
442			}
443			if (isset($field_def['auto'])) {
444			if ($field_def['auto']) {
445			$field_def['type'] = "SERIAL";
446			}
447			}
448			if (isset($field_def['extra'])) {
449			$extra = $field_def['extra'];
450			} else {
451			$extra = "";
452			}
453			$create_lines[] = "$field " . $field_def['type'] . $size . ' ' . $not_null . ' ' . $extra;
454			}
455			$create_sql.= join(',', $create_lines);
456			$last_lines = array();
457			if (count($primary)) {
458			$last_lines[] = 'PRIMARY KEY(' . join(",", $primary) . ')';
459			}
460			if (count($index)) {
461			$last_lines[] = join(',', $index);
462			}
463			if (count($unique_index)) {
464			$last_lines[] = join(',', $unique_index);
465			}
466			if (count($last_lines)) {
467			$create_sql.= ',' . join(',', $last_lines) . ')';
468			}
469			return $this->query($create_sql);
470			}
471
472			/**
473			* Listar las tablas en la base de datos
474			*
475			* @return array
476			*/
477			public function list_tables()
478			{
479			return $this->fetch_all("SELECT c.relname AS table FROM pg_class c, pg_user u "
480			. "WHERE c.relowner = u.usesysid AND c.relkind = 'r' "
481			. "AND NOT EXISTS (SELECT 1 FROM pg_views WHERE viewname = c.relname) "
482			. "AND c.relname !~ '^(pg_\|sql_)' UNION "
483			. "SELECT c.relname AS table_name FROM pg_class c "
484			. "WHERE c.relkind = 'r' "
485			. "AND NOT EXISTS (SELECT 1 FROM pg_views WHERE viewname = c.relname) "
486			. "AND NOT EXISTS (SELECT 1 FROM pg_user WHERE usesysid = c.relowner) "
487			. "AND c.relname !~ '^pg_'");
488			}
489
490			/**
491			* Listar los campos de una tabla
492			*
493			* @param string $table
494			* @return array
495			*/
496			public function describe_table($table, $schema='')
497			{
498			$describe = $this->fetch_all("SELECT a.attname AS Field, t.typname AS Type,
499			CASE WHEN attnotnull=false THEN 'YES' ELSE 'NO' END AS Null,
500			CASE WHEN (select cc.contype FROM pg_catalog.pg_constraint cc WHERE
501			cc.conrelid = c.oid AND cc.conkey[1] = a.attnum limit 1)='p' THEN 'PRI' ELSE ''
502			END AS Key, CASE WHEN atthasdef=true THEN TRUE ELSE NULL END AS Default
503			FROM pg_catalog.pg_class c, pg_catalog.pg_attribute a,
504			pg_catalog.pg_type t WHERE c.relname = '$table' AND c.oid = a.attrelid
505			AND a.attnum > 0 AND t.oid = a.atttypid order by a.attnum");
506			$final_describe = array();
507			foreach ($describe as $key => $value) {
508			$final_describe[] = array(
509			"Field" => $value["field"],
510			"Type" => $value["type"],
511			"Null" => $value["null"],
512			"Key" => $value["key"],
513			"Default" => $value["default"]
514			);
515			}
516			return $final_describe;
517			}
518
519			/**
520			* Devuelve fila por fila el contenido de un select
521			*
522			* @param resource $query_result
523			* @param string $class clase de objeto
524			* @return object
525			*/
526			public function fetch_object($query_result=null, $class='stdClass')
527			{
528			if (!$query_result) {
529			$query_result = $this->last_result_query;
530			}
531			return pg_fetch_object($query_result, null, $class);
532			}
533
534			/**
535			* Devuelve la ultima sentencia sql ejecutada por el Adaptador
536			*
537			* @return string
538			*/
539			public function last_sql_query()
540			{
541			return $this->last_query;
542			}
543
544			}
545

henrystivens / upload-image-and-data

Branch — master (024767)

DbPgSQL::create_table() F

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