DB::parseSchema() - Code Metrics - Inspection of "simplified constructor signature" - vakata/database - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( 1679f6...961af6 )

by Ivan

created 2020-02-10 15:53 UTC

DB::parseSchema() A

↳ Parent: DB

Complexity

Conditions	1
Paths	1

Size

Total Lines

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	0
CRAP Score	2

Importance

Changes

Metric	Value
c	0
b	0
f	0
dl	0
loc	5
ccs	0
cts	3
cp	0
rs	10
cc	1
nc	1
nop	0
crap	2

<?php

namespace vakata\database;

use \vakata\collection\Collection;
use \vakata\database\schema\Table;
use \vakata\database\schema\TableQuery;
use \vakata\database\schema\TableQueryMapped;
use \vakata\database\schema\TableRelation;

/**
 * A database abstraction with support for various drivers (mySQL, postgre, oracle, msSQL, sphinx, and even PDO).
 */
class DB implements DBInterface
{
    /**
     * @var DriverInterface
     */
    protected $driver;
    /**
     * @var Table[]
     */
    protected $tables = [];

    /**
     * Create an instance.
     *
     * @param string $connectionString a driver instance or a connection string
     */
    public function __construct(string $connectionString)
    {
        $connection = [
            'orig' => $connectionString,
            'type' => null,
            'user' => null,
            'pass' => null,
            'host' => null,
            'port' => null,
            'name' => null,
            'opts' => []
        ];
        $aliases = [
            'my'        => 'mysql',
            'mysqli'    => 'mysql',
            'pg'        => 'postgre',
            'oci'       => 'oracle',
            'firebird'  => 'ibase'
        ];
        $temp = parse_url($connectionString);
        if ($temp === false || (isset($temp['query']) && strpos($temp['query'], 'regexparser=1') !== false)) {
            if (!preg_match(
                '(^
                    (?<scheme>.*?)://
                    (?:(?<user>.*?)(?:\:(?<pass>.*))?@)?
                    (?<host>[a-zа-я.\-_0-9=();:]+?) # added =();: for oracle and pdo configs
                    (?:\:(?<port>\d+))?
                    (?<path>/.+?)? # path is optional for oracle and pdo configs
                    (?:\?(?<query>.*))?
                $)xui',
                $connectionString,
                $temp
            )) {
                throw new DBException('Could not parse connection string');
            }
        }
        $connection['type'] = isset($temp['scheme']) && strlen($temp['scheme']) ? $temp['scheme'] : null;
        $connection['user'] = isset($temp['user']) && strlen($temp['user']) ? $temp['user'] : null;
        $connection['pass'] = isset($temp['pass']) && strlen($temp['pass']) ? $temp['pass'] : null;
        $connection['host'] = isset($temp['host']) && strlen($temp['host']) ? $temp['host'] : null;
        $connection['name'] = isset($temp['path']) && strlen($temp['path']) ? trim($temp['path'], '/') : null;
        $connection['port'] = isset($temp['port']) && (int)$temp['port'] ? (int)$temp['port'] : null;
        if (isset($temp['query']) && strlen($temp['query'])) {
            parse_str($temp['query'], $connection['opts']);
        }
        // create the driver
        $connection['type'] = $aliases[$connection['type']] ?? $connection['type'];
        $tmp = '\\vakata\\database\\driver\\'.strtolower($connection['type']).'\\Driver';
        if (!class_exists($tmp)) {
            throw new DBException('Unknown DB backend');
        }
        $this->driver = new $tmp($connection);
    }

    /**
     * Prepare a statement.
     * Use only if you need a single query to be performed multiple times with different parameters.
     *
     * @param string $sql the query to prepare - use `?` for arguments
     * @return StatementInterface the prepared statement
     */
    public function prepare(string $sql) : StatementInterface
    {
        return $this->driver->prepare($sql);
    }
    /**
     * Test the connection
     *
     * @return bool
     */
    public function test() : bool
    {
        return $this->driver->test();
    }
    protected function expand(string $sql, $par = null) : array
    {
        $new = '';
        $par = array_values($par);
        if (substr_count($sql, '?') === 2 && !is_array($par[0])) {
            $par = [ $par ];
        }
        $parts = explode('??', $sql);
        $index = 0;
        foreach ($parts as $part) {
            $tmp = explode('?', $part);
            $new .= $part;
            $index += count($tmp) - 1;
            if (isset($par[$index])) {
                if (!is_array($par[$index])) {
                    $par[$index] = [ $par[$index] ];
                }
                $params = $par[$index];
                array_splice($par, $index, 1, $params);
                $index += count($params);
                $new .= implode(',', array_fill(0, count($params), '?'));
            }
        }
        return [ $new, $par ];
    }
    /**
     * Run a query (prepare & execute).
     * @param string      $sql  SQL query
     * @param mixed  $par parameters (optional)
     * @return ResultInterface the result of the execution
     */
    public function query(string $sql, $par = null) : ResultInterface
    {
        $par = isset($par) ? (is_array($par) ? $par : [$par]) : [];
        if (strpos($sql, '??') && count($par)) {
            list($sql, $par) = $this->expand($sql, $par);
        }
        return $this->driver->prepare($sql)->execute($par);
    }
    /**
     * Run a SELECT query and get an array-like result.
     * When using `get` the data is kept in the database client and fetched as needed (not in PHP memory as with `all`)
     *
     * @param string   $sql      SQL query
     * @param array    $par      parameters
     * @param string   $key      column name to use as the array index
     * @param bool     $skip     do not include the column used as index in the value (defaults to `false`)
     * @param bool     $opti     if a single column is returned - do not use an array wrapper (defaults to `true`)
     *
     * @return Collection the result of the execution
     */
    public function get(string $sql, $par = null, string $key = null, bool $skip = false, bool $opti = true): Collection
    {
        $coll = Collection::from($this->query($sql, $par));
        if (($keys = $this->driver->option('mode')) && in_array($keys, ['strtoupper', 'strtolower'])) {
            $coll->map(function ($v) use ($keys) {
                $new = [];
                foreach ($v as $k => $vv) {
                    $new[call_user_func($keys, $k)] = $vv;
                }
                return $new;
            });
        }
        if ($key !== null) {
            $coll->mapKey(function ($v) use ($key) {
                return $v[$key];
            });
        }
        if ($skip) {
            $coll->map(function ($v) use ($key) {
                unset($v[$key]);
                return $v;
            });
        }
        if ($opti) {
            $coll->map(function ($v) {
                return count($v) === 1 ? current($v) : $v;
            });
        }
        return $coll;
    }
    /**
     * Run a SELECT query and get a single row
     * @param string   $sql      SQL query
     * @param array    $par      parameters
     * @param bool     $opti     if a single column is returned - do not use an array wrapper (defaults to `true`)
     * @return mixed the result of the execution
     */
    public function one(string $sql, $par = null, bool $opti = true)
    {
        return $this->get($sql, $par, null, false, $opti)->value();
    }
    /**
     * Run a SELECT query and get an array
     * @param string   $sql      SQL query
     * @param array    $par      parameters
     * @param string   $key      column name to use as the array index
     * @param bool     $skip     do not include the column used as index in the value (defaults to `false`)
     * @param bool     $opti     if a single column is returned - do not use an array wrapper (defaults to `true`)
     * @return array the result of the execution
     */
    public function all(string $sql, $par = null, string $key = null, bool $skip = false, bool $opti = true) : array
    {
        return $this->get($sql, $par, $key, $skip, $opti)->toArray();
    }
    /**
     * Begin a transaction.
     * @return $this
     */
    public function begin() : DBInterface
    {
        if (!$this->driver->begin()) {
            throw new DBException('Could not begin');
        }
        return $this;
    }
    /**
     * Commit a transaction.
     * @return $this
     */
    public function commit() : DBInterface
    {
        if (!$this->driver->commit()) {
            throw new DBException('Could not commit');
        }
        return $this;
    }
    /**
     * Rollback a transaction.
     * @return $this
     */
    public function rollback() : DBInterface
    {
        if (!$this->driver->rollback()) {
            throw new DBException('Could not rollback');
        }
        return $this;
    }
    /**
     * Get the current driver name (`"mysql"`, `"postgre"`, etc).
     * @return string the current driver name
     */
    public function driverName() : string
    {
        return array_reverse(explode('\\', get_class($this->driver)))[1];
    }
    /**
     * Get an option from the driver
     *
     * @param string $key     the option name
     * @param mixed  $default the default value to return if the option key is not defined
     * @return mixed the option value
     */
    public function driverOption(string $key, $default = null)
    {
        return $this->driver->option($key, $default);
    }

    public function definition(string $table, bool $detectRelations = true) : Table
    {
        return isset($this->tables[$table]) ?
            $this->tables[$table] :
            $this->driver->table($table, $detectRelations);
    }
    /**
     * Parse all tables from the database.
     * @return $this
     */
    public function parseSchema()
    {
        $this->tables = $this->driver->tables();
        return $this;
    }
    /**
     * Get the full schema as an array that you can serialize and store
     * @return array
     */
    public function getSchema($asPlainArray = true)
    {
        return !$asPlainArray ? $this->tables : array_map(function ($table) {
            return [
                'name' => $table->getName(),
                'pkey' => $table->getPrimaryKey(),
                'comment' => $table->getComment(),
                'columns' => array_map(function ($column) {
                    return [
                        'name' => $column->getName(),
                        'type' => $column->getType(),
                        'length' => $column->getLength(),
                        'comment' => $column->getComment(),
                        'values' => $column->getValues(),
                        'default' => $column->getDefault(),
                        'nullable' => $column->isNullable()
                    ];
                }, $table->getFullColumns()),
                'relations' => array_map(function ($rel) {
                    $relation = clone $rel;
                    $relation = (array)$relation;
                    $relation['table'] = $rel->table->getName();
                    if ($rel->pivot) {
                        $relation['pivot'] = $rel->pivot->getName();
                    }
                    return $relation;
                }, $table->getRelations())
            ];
        }, $this->tables);
    }
    /**
     * Load the schema data from a schema definition array (obtained from getSchema)
     * @param  array        $data the schema definition
     * @return $this
     */
    public function setSchema(array $data)
    {
        foreach ($data as $tableData) {
            $this->tables[$tableData['name']] = (new Table($tableData['name']))
                        ->setPrimaryKey($tableData['pkey'])
                        ->setComment($tableData['comment'])
                        ->addColumns($tableData['columns']);
        }
        foreach ($data as $tableData) {
            $table = $this->definition($tableData['name']);
            foreach ($tableData['relations'] as $relationName => $relationData) {
                $relationData['table'] = $this->definition($relationData['table']);
                if ($relationData['pivot']) {
                    $relationData['pivot'] = $this->definition($relationData['pivot']);
                }
                $table->addRelation(new TableRelation(
                    $relationData['name'],
                    $relationData['table'],
                    $relationData['keymap'],
                    $relationData['many'],
                    $relationData['pivot'] ?? null,
                    $relationData['pivot_keymap'],
                    $relationData['sql'],
                    $relationData['par']
                ));
            }
        }
        return $this;
    }

    /**
     * Initialize a table query
     * @param string $table the table to query
     * @return TableQuery
     */
    public function table(string $table, bool $mapped = false)
    {
        return $mapped ?
            new TableQueryMapped($this, $this->definition($table)) :
            new TableQuery($this, $this->definition($table));
    }
    public function __call($method, $args)
    {
        return $this->table($method, $args[0] ?? false);
    }
}


1		<?php
2
3		namespace vakata\database;
4
5		use \vakata\collection\Collection;
6		use \vakata\database\schema\Table;
7		use \vakata\database\schema\TableQuery;
8		use \vakata\database\schema\TableQueryMapped;
9		use \vakata\database\schema\TableRelation;
10
11		/**
12		* A database abstraction with support for various drivers (mySQL, postgre, oracle, msSQL, sphinx, and even PDO).
13		*/
14		class DB implements DBInterface
15		{
16		/**
17		* @var DriverInterface
18		*/
19		protected $driver;
20		/**
21		* @var Table[]
22		*/
23		protected $tables = [];
24
25		/**
26		* Create an instance.
27		*
28		* @param string $connectionString a driver instance or a connection string
29		*/
30	15	public function __construct(string $connectionString)
31		{
32		$connection = [
33	15	'orig' => $connectionString,
34		'type' => null,
35		'user' => null,
36		'pass' => null,
37		'host' => null,
38		'port' => null,
39		'name' => null,
40		'opts' => []
41		];
42		$aliases = [
43	15	'my' => 'mysql',
44		'mysqli' => 'mysql',
45		'pg' => 'postgre',
46		'oci' => 'oracle',
47		'firebird' => 'ibase'
48		];
49	15	$temp = parse_url($connectionString);
50	15	if ($temp === false \|\| (isset($temp['query']) && strpos($temp['query'], 'regexparser=1') !== false)) {
51	6	if (!preg_match(
52	6	'(^
53		(?<scheme>.*?)://
54		(?:(?<user>.?)(?:\:(?<pass>.))?@)?
55		(?<host>[a-zа-я.\-_0-9=();:]+?) # added =();: for oracle and pdo configs
56		(?:\:(?<port>\d+))?
57		(?<path>/.+?)? # path is optional for oracle and pdo configs
58		(?:\?(?<query>.*))?
59		$)xui',
60	6	$connectionString,
61	6	$temp
62		)) {
63		throw new DBException('Could not parse connection string');
64		}
65		}
66	15	$connection['type'] = isset($temp['scheme']) && strlen($temp['scheme']) ? $temp['scheme'] : null;
67	15	$connection['user'] = isset($temp['user']) && strlen($temp['user']) ? $temp['user'] : null;
68	15	$connection['pass'] = isset($temp['pass']) && strlen($temp['pass']) ? $temp['pass'] : null;
69	15	$connection['host'] = isset($temp['host']) && strlen($temp['host']) ? $temp['host'] : null;
70	15	$connection['name'] = isset($temp['path']) && strlen($temp['path']) ? trim($temp['path'], '/') : null;
71	15	$connection['port'] = isset($temp['port']) && (int)$temp['port'] ? (int)$temp['port'] : null;
72	15	if (isset($temp['query']) && strlen($temp['query'])) {
73	15	parse_str($temp['query'], $connection['opts']);
74		}
75		// create the driver
76	15	$connection['type'] = $aliases[$connection['type']] ?? $connection['type'];
77	15	$tmp = '\\vakata\\database\\driver\\'.strtolower($connection['type']).'\\Driver';
78	15	if (!class_exists($tmp)) {
79		throw new DBException('Unknown DB backend');
80		}
81	15	$this->driver = new $tmp($connection);
82	15	}
83
84		/**
85		* Prepare a statement.
86		* Use only if you need a single query to be performed multiple times with different parameters.
87		*
88		* @param string $sql the query to prepare - use `?` for arguments
89		* @return StatementInterface the prepared statement
90		*/
91	1	public function prepare(string $sql) : StatementInterface
92		{
93	1	return $this->driver->prepare($sql);
94		}
95		/**
96		* Test the connection
97		*
98		* @return bool
99		*/
100	1	public function test() : bool
101		{
102	1	return $this->driver->test();
103		}
104	27	protected function expand(string $sql, $par = null) : array
105		{
106	27	$new = '';
107	27	$par = array_values($par);
108	27	if (substr_count($sql, '?') === 2 && !is_array($par[0])) {
109	3	$par = [ $par ];
110		}
111	27	$parts = explode('??', $sql);
112	27	$index = 0;
113	27	foreach ($parts as $part) {
114	27	$tmp = explode('?', $part);
115	27	$new .= $part;
116	27	$index += count($tmp) - 1;
117	27	if (isset($par[$index])) {
118	27	if (!is_array($par[$index])) {
119		$par[$index] = [ $par[$index] ];
120		}
121	27	$params = $par[$index];
122	27	array_splice($par, $index, 1, $params);
123	27	$index += count($params);
124	27	$new .= implode(',', array_fill(0, count($params), '?'));
125		}
126		}
127	27	return [ $new, $par ];
128		}
129		/**
130		* Run a query (prepare & execute).
131		* @param string $sql SQL query
132		* @param mixed $par parameters (optional)
133		* @return ResultInterface the result of the execution
134		*/
135	166	public function query(string $sql, $par = null) : ResultInterface
136		{
137	166	$par = isset($par) ? (is_array($par) ? $par : [$par]) : [];
138	166	if (strpos($sql, '??') && count($par)) {
139	27	list($sql, $par) = $this->expand($sql, $par);
140		}
141	166	return $this->driver->prepare($sql)->execute($par);
142		}
143		/**
144		* Run a SELECT query and get an array-like result.
145		* When using `get` the data is kept in the database client and fetched as needed (not in PHP memory as with `all`)
146		*
147		* @param string $sql SQL query
148		* @param array $par parameters
149		* @param string $key column name to use as the array index
150		* @param bool $skip do not include the column used as index in the value (defaults to `false`)
151		* @param bool $opti if a single column is returned - do not use an array wrapper (defaults to `true`)
152		*
153		* @return Collection the result of the execution
154		*/
155	160	public function get(string $sql, $par = null, string $key = null, bool $skip = false, bool $opti = true): Collection
156		{
157	160	$coll = Collection::from($this->query($sql, $par));
158	160	if (($keys = $this->driver->option('mode')) && in_array($keys, ['strtoupper', 'strtolower'])) {
159	1	$coll->map(function ($v) use ($keys) {
160	1	$new = [];
161	1	foreach ($v as $k => $vv) {
162	1	$new[call_user_func($keys, $k)] = $vv;
163		}
164	1	return $new;
165	1	});
166		}
167	160	if ($key !== null) {
168	2	$coll->mapKey(function ($v) use ($key) {
169	2	return $v[$key];
170	2	});
171		}
172	160	if ($skip) {
173	2	$coll->map(function ($v) use ($key) {
174	2	unset($v[$key]);
175	2	return $v;
176	2	});
177		}
178	160	if ($opti) {
179	67	$coll->map(function ($v) {
180	67	return count($v) === 1 ? current($v) : $v;
181	67	});
182		}
183	160	return $coll;
184		}
185		/**
186		* Run a SELECT query and get a single row
187		* @param string $sql SQL query
188		* @param array $par parameters
189		* @param bool $opti if a single column is returned - do not use an array wrapper (defaults to `true`)
190		* @return mixed the result of the execution
191		*/
192	63	public function one(string $sql, $par = null, bool $opti = true)
193		{
194	63	return $this->get($sql, $par, null, false, $opti)->value();
195		}
196		/**
197		* Run a SELECT query and get an array
198		* @param string $sql SQL query
199		* @param array $par parameters
200		* @param string $key column name to use as the array index
201		* @param bool $skip do not include the column used as index in the value (defaults to `false`)
202		* @param bool $opti if a single column is returned - do not use an array wrapper (defaults to `true`)
203		* @return array the result of the execution
204		*/
205	6	public function all(string $sql, $par = null, string $key = null, bool $skip = false, bool $opti = true) : array
206		{
207	6	return $this->get($sql, $par, $key, $skip, $opti)->toArray();
208		}
209		/**
210		* Begin a transaction.
211		* @return $this
212		*/
213	1	public function begin() : DBInterface
214		{
215	1	if (!$this->driver->begin()) {
216		throw new DBException('Could not begin');
217		}
218	1	return $this;
219		}
220		/**
221		* Commit a transaction.
222		* @return $this
223		*/
224	1	public function commit() : DBInterface
225		{
226	1	if (!$this->driver->commit()) {
227		throw new DBException('Could not commit');
228		}
229	1	return $this;
230		}
231		/**
232		* Rollback a transaction.
233		* @return $this
234		*/
235	1	public function rollback() : DBInterface
236		{
237	1	if (!$this->driver->rollback()) {
238		throw new DBException('Could not rollback');
239		}
240	1	return $this;
241		}
242		/**
243		* Get the current driver name (`"mysql"`, `"postgre"`, etc).
244		* @return string the current driver name
245		*/
246	16	public function driverName() : string
247		{
248	16	return array_reverse(explode('\\', get_class($this->driver)))[1];
249		}
250		/**
251		* Get an option from the driver
252		*
253		* @param string $key the option name
254		* @param mixed $default the default value to return if the option key is not defined
255		* @return mixed the option value
256		*/
257	76	public function driverOption(string $key, $default = null)
258		{
259	76	return $this->driver->option($key, $default);
260		}
261
262	156	public function definition(string $table, bool $detectRelations = true) : Table
263		{
264	156	return isset($this->tables[$table]) ?
265		$this->tables[$table] :
266	156	$this->driver->table($table, $detectRelations);
267		}
268		/**
269		* Parse all tables from the database.
270		* @return $this
271		*/
272		public function parseSchema()
273		{
274		$this->tables = $this->driver->tables();
275		return $this;
276		}
277		/**
278		* Get the full schema as an array that you can serialize and store
279		* @return array
280		*/
281		public function getSchema($asPlainArray = true)
282		{
283	4	return !$asPlainArray ? $this->tables : array_map(function ($table) {
284		return [
285		'name' => $table->getName(),
286		'pkey' => $table->getPrimaryKey(),
287		'comment' => $table->getComment(),
288		'columns' => array_map(function ($column) {
289		return [
290		'name' => $column->getName(),
291		'type' => $column->getType(),
292		'length' => $column->getLength(),
293		'comment' => $column->getComment(),
294		'values' => $column->getValues(),
295		'default' => $column->getDefault(),
296		'nullable' => $column->isNullable()
297		];
298		}, $table->getFullColumns()),
299		'relations' => array_map(function ($rel) {
300		$relation = clone $rel;
301		$relation = (array)$relation;
302		$relation['table'] = $rel->table->getName();
303		if ($rel->pivot) {
304		$relation['pivot'] = $rel->pivot->getName();
305		}
306		return $relation;
307		}, $table->getRelations())
308		];
309	4	}, $this->tables);
310		}
311		/**
312		* Load the schema data from a schema definition array (obtained from getSchema)
313		* @param array $data the schema definition
314		* @return $this
315		*/
316		public function setSchema(array $data)
317		{
318		foreach ($data as $tableData) {
319		$this->tables[$tableData['name']] = (new Table($tableData['name']))
320		->setPrimaryKey($tableData['pkey'])
321		->setComment($tableData['comment'])
322		->addColumns($tableData['columns']);
323		}
324		foreach ($data as $tableData) {
325		$table = $this->definition($tableData['name']);
326		foreach ($tableData['relations'] as $relationName => $relationData) {
327		$relationData['table'] = $this->definition($relationData['table']);
328		if ($relationData['pivot']) {
329		$relationData['pivot'] = $this->definition($relationData['pivot']);
330		}
331		$table->addRelation(new TableRelation(
332		$relationData['name'],
333		$relationData['table'],
334		$relationData['keymap'],
335		$relationData['many'],
336		$relationData['pivot'] ?? null,
337		$relationData['pivot_keymap'],
338		$relationData['sql'],
339		$relationData['par']
340		));
341		}
342		}
343		return $this;
344		}
345
346		/**
347		* Initialize a table query
348		* @param string $table the table to query
349		* @return TableQuery
350		*/
351	156	public function table(string $table, bool $mapped = false)
352		{
353	156	return $mapped ?
354	80	new TableQueryMapped($this, $this->definition($table)) :
355	156	new TableQuery($this, $this->definition($table));
356		}
357	148	public function __call($method, $args)
358		{
359	148	return $this->table($method, $args[0] ?? false);
360		}
361		}
362

vakata / database

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DB::parseSchema() A

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