AbstractDaftObjectEasyDBRepository::DaftObjectExistsInDatabase() - Code Metrics - Inspection of "splitting method" - SignpostMarv/daft-db-object - Measure and Improve Code Quality continuously with Scrutinizer

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by SignpostMarv

created 2018-05-19 09:55 UTC

DaftObjectExistsInDatabase() A

↳ Parent: AbstractDaftObjectEasyDBRepository

Complexity

Conditions	2
Paths	2

Size

Total Lines	20
Code Lines	11

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	10
CRAP Score	2

Importance

Changes

Metric	Value
cc	2
eloc	11
nc	2
nop	1
dl	0
loc	20
ccs	10
cts	10
cp	1
crap	2
rs	9.4285
c	0
b	0
f	0

<?php
/**
* Base daft objects.
*
* @author SignpostMarv
*/
declare(strict_types=1);

namespace SignpostMarv\DaftObject;

use ParagonIE\EasyDB\EasyDB;

abstract class AbstractDaftObjectEasyDBRepository extends DaftObjectMemoryRepository
{
    /**
    * @var EasyDB
    */
    protected $db;

    protected function __construct(string $type, EasyDB $db)
    {
        parent::__construct($type);
        $this->db = $db;
    }

    public static function DaftObjectRepositoryByType(
        string $type,
        ? EasyDB $db = null
    ) : DaftObjectRepository {
        $a = is_a($type, DaftObjectCreatedByArray::class, true);
        if (
            false === $a ||
            false === is_a($type, DefinesOwnIdPropertiesInterface::class, true)
        ) {
            throw new DaftObjectRepositoryTypeByClassMethodAndTypeException(
                1,
                static::class,
                __FUNCTION__,
                ($a ? DefinesOwnIdPropertiesInterface::class : DaftObjectCreatedByArray::class),
                $type
            );
        }

        $db = self::DaftObjectRepositoryArgsEasyDbActuallyRequired($db, 2, __FUNCTION__);

        return new static($type, $db);
    }

    public static function DaftObjectRepositoryByDaftObject(
        DefinesOwnIdPropertiesInterface $object,
        ? EasyDB $db = null
    ) : DaftObjectRepository {
        $db = self::DaftObjectRepositoryArgsEasyDbActuallyRequired($db, 2, __FUNCTION__);

        return static::DaftObjectRepositoryByType(get_class($object), $db);
    }

    /**
    * @param mixed $id
    */
    public function RemoveDaftObjectById($id) : void
    {
        $id = array_values(is_array($id) ? $id : [$id]);

        $idkv = self::DaftObjectIdPropertiesFromType($this->type, $id);

        $this->db->delete($this->DaftObjectDatabaseTable(), $this->ModifyTypesForDatabase($idkv));

        $this->ForgetDaftObjectById($id);
    }

    /**
    * @param mixed $id
    *
    * @return array<string, mixed>
    */
    protected static function DaftObjectIdPropertiesFromType(string $type, $id) : array
    {
        /**
        * @var array<int, string> $idProps
        */
        $idProps = array_values($type::DaftObjectIdProperties());

        if (is_scalar($id) && 1 === count($idProps)) {
            $id = [$id];
        }

        /**
        * @var array<string, mixed> $idkv
        */
        $idkv = [];

        foreach ($idProps as $i => $prop) {
            $idkv[$prop] = $id[$i];
        }

        return $idkv;
    }

    protected static function DaftObjectRepositoryArgsEasyDbActuallyRequired(
        ? EasyDB $db,
        int $arg,
        string $function
    ) : EasyDB {
        if (false === ($db instanceof EasyDB)) {
            throw new DatabaseConnectionNotSpecifiedException(
                $arg,
                static::class,
                $function,
                EasyDB::class,
                'null'
            );
        }

        return $db;
    }

    /**
    * @return array<string, mixed>
    */
    protected function ModifyTypesForDatabase(array $values) : array
    {
        /**
        * @var array<string, mixed> $out
        */
        $out = array_map(
            /**
            * @param mixed $val
            *
            * @return mixed
            */
            function ($val) {
                return is_bool($val) ? (int) $val : $val;
            },
            $values
        );

        return $out;
    }

    abstract protected function DaftObjectDatabaseTable() : string;

    /**
    * @return string[]
    */
    protected function RememberDaftObjectDataCols(DaftObject $object, bool $exists) : array
    {
        $cols = $object::DaftObjectExportableProperties();
        if ($exists) {
            $changed = $object->ChangedProperties();
            $cols = array_filter(
                $cols,
                function (string $prop) use ($changed) : bool {
                    return in_array($prop, $changed, true);
                }
            );
        }

        return $cols;
    }

    /**
    * @return array<string, mixed>
    */
    protected function RememberDaftObjectDataValues(DaftObject $object, bool $exists) : array
    {
        /**
        * @var array<string, mixed>
        */
        $values = [];
        $cols = $this->RememberDaftObjectDataCols($object, $exists);
        /**
        * @var string $col
        */
        foreach ($cols as $col) {
            $values[$col] = $object->$col;
        }

        return $this->ModifyTypesForDatabase($values);
    }

    protected function RememberDaftObjectDataUpdate(bool $exists, array $id, array $values) : void
    {
        if (count($values) > 0) {
            if (false === $exists) {
                $this->db->insert($this->DaftObjectDatabaseTable(), $values);
            } else {
                $this->db->update($this->DaftObjectDatabaseTable(), $values, $id);
            }
        }
    }

    protected function RememberDaftObjectData(DefinesOwnIdPropertiesInterface $object) : void
    {
        /**
        * @var array<string, mixed> $id
        */
        $id = [];

        /**
        * @var string $prop
        */
        foreach ($object::DaftObjectIdProperties() as $prop) {
            $id[$prop] = $object->$prop;
        }

        $this->db->tryFlatTransaction(function () use ($id, $object) : void {
            $exists = $this->DaftObjectExistsInDatabase($id);
            $values = $this->RememberDaftObjectDataValues($object, $exists);
            $this->RememberDaftObjectDataUpdate($exists, $id, $values);
        });
    }

    protected function RecallDaftObjectFromData($id) : ? DaftObject
    {
        $idkv = self::DaftObjectIdPropertiesFromType($this->type, $id);

        return $this->RecallDaftObjectFromQuery($idkv);
    }

    protected function RecallDaftObjectFromQuery(array $idkv) : ? DefinesOwnIdPropertiesInterface
    {
        if (true === $this->DaftObjectExistsInDatabase($idkv)) {
            $type = $this->type;

            /**
            * @var DefinesOwnIdPropertiesInterface $out
            */
            $out = new $type($this->RecallDaftObjectDataFromQuery($idkv));

            return $out;
        }

        return null;
    }

    protected function RecallDaftObjectDataFromQuery(array $idkv) : array
    {
        /**
        * @var array[] $data
        */
        $data = $this->db->safeQuery(
            (
                'SELECT * FROM ' .
                $this->db->escapeIdentifier($this->DaftObjectDatabaseTable()) .
                ' WHERE ' .
                implode(' AND ', array_map(
                    function (string $col) : string {
                        return $this->db->escapeIdentifier($col) . ' = ?';
                    },
                    array_keys($idkv)
                )) .
                ' LIMIT 1'
            ),
            array_values($idkv)
        );

        return $data[0];
    }

    private function DaftObjectExistsInDatabase(array $id) : bool
    {
        $where = [];
        /**
        * @var string $col
        */
        foreach (array_keys($id) as $col) {
            $where[] = $this->db->escapeIdentifier($col) . ' = ?';
        }

        return
            (int) $this->db->single(
                (
                    'SELECT COUNT(*) FROM ' .
                    $this->db->escapeIdentifier($this->DaftObjectDatabaseTable()) .
                    ' WHERE ' .
                    implode(' AND ', $where)
                ),
                array_values($id)
            ) >= 1;
    }
}


1		<?php
2		/**
3		* Base daft objects.
4		*
5		* @author SignpostMarv
6		*/
7		declare(strict_types=1);
8
9		namespace SignpostMarv\DaftObject;
10
11		use ParagonIE\EasyDB\EasyDB;
12
13		abstract class AbstractDaftObjectEasyDBRepository extends DaftObjectMemoryRepository
14		{
15		/**
16		* @var EasyDB
17		*/
18		protected $db;
19
20	12	protected function __construct(string $type, EasyDB $db)
21		{
22	12	parent::__construct($type);
23	12	$this->db = $db;
24	12	}
25
26	20	public static function DaftObjectRepositoryByType(
27		string $type,
28		? EasyDB $db = null
29		) : DaftObjectRepository {
30	20	$a = is_a($type, DaftObjectCreatedByArray::class, true);
31		if (
32	20	false === $a \|\|
33	20	false === is_a($type, DefinesOwnIdPropertiesInterface::class, true)
34		) {
35	6	throw new DaftObjectRepositoryTypeByClassMethodAndTypeException(
36	6	1,
37	6	static::class,
38	6	__FUNCTION__,
39	6	($a ? DefinesOwnIdPropertiesInterface::class : DaftObjectCreatedByArray::class),
40	6	$type
41		);
42		}
43
44	14	$db = self::DaftObjectRepositoryArgsEasyDbActuallyRequired($db, 2, __FUNCTION__);
45
46	12	return new static($type, $db);
47		}
48
49	12	public static function DaftObjectRepositoryByDaftObject(
50		DefinesOwnIdPropertiesInterface $object,
51		? EasyDB $db = null
52		) : DaftObjectRepository {
53	12	$db = self::DaftObjectRepositoryArgsEasyDbActuallyRequired($db, 2, __FUNCTION__);
54
55	12	return static::DaftObjectRepositoryByType(get_class($object), $db);
56		}
57
58		/**
59		* @param mixed $id
60		*/
61	4	public function RemoveDaftObjectById($id) : void
62		{
63	4	$id = array_values(is_array($id) ? $id : [$id]);
64
65	4	$idkv = self::DaftObjectIdPropertiesFromType($this->type, $id);
66
67	4	$this->db->delete($this->DaftObjectDatabaseTable(), $this->ModifyTypesForDatabase($idkv));
68
69	4	$this->ForgetDaftObjectById($id);
70	4	}
71
72		/**
73		* @param mixed $id
74		*
75		* @return array<string, mixed>
76		*/
77	6	protected static function DaftObjectIdPropertiesFromType(string $type, $id) : array
78		{
79		/**
80		* @var array<int, string> $idProps
81		*/
82	6	$idProps = array_values($type::DaftObjectIdProperties());
83
84	6	if (is_scalar($id) && 1 === count($idProps)) {
85	2	$id = [$id];
86		}
87
88		/**
89		* @var array<string, mixed> $idkv
90		*/
91	6	$idkv = [];
92
93	6	foreach ($idProps as $i => $prop) {
94	6	$idkv[$prop] = $id[$i];
95		}
96
97	6	return $idkv;
98		}
99
100	14	protected static function DaftObjectRepositoryArgsEasyDbActuallyRequired(
101		? EasyDB $db,
102		int $arg,
103		string $function
104		) : EasyDB {
105	14	if (false === ($db instanceof EasyDB)) {
106	2	throw new DatabaseConnectionNotSpecifiedException(
107	2	$arg,
108	2	static::class,
109	2	$function,
110	2	EasyDB::class,
111	2	'null'
112		);
113		}
114
115	12	return $db;
116		}
117
118		/**
119		* @return array<string, mixed>
120		*/
121	6	protected function ModifyTypesForDatabase(array $values) : array
122		{
123		/**
124		* @var array<string, mixed> $out
125		*/
126	6	$out = array_map(
127		/**
128		* @param mixed $val
129		*
130		* @return mixed
131		*/
132		function ($val) {
133	6	return is_bool($val) ? (int) $val : $val;
134	6	},
135	6	$values
136		);
137
138	6	return $out;
139		}
140
141		abstract protected function DaftObjectDatabaseTable() : string;
142
143		/**
144		* @return string[]
145		*/
146	6	protected function RememberDaftObjectDataCols(DaftObject $object, bool $exists) : array
147		{
148	6	$cols = $object::DaftObjectExportableProperties();
149	6	if ($exists) {
150	4	$changed = $object->ChangedProperties();
151	4	$cols = array_filter(
152	4	$cols,
153		function (string $prop) use ($changed) : bool {
154	4	return in_array($prop, $changed, true);
155	4	}
156		);
157		}
158
159	6	return $cols;
160		}
161
162		/**
163		* @return array<string, mixed>
164		*/
165	6	protected function RememberDaftObjectDataValues(DaftObject $object, bool $exists) : array
166		{
167		/**
168		* @var array<string, mixed>
169		*/
170	6	$values = [];
171	6	$cols = $this->RememberDaftObjectDataCols($object, $exists);
172		/**
173		* @var string $col
174		*/
175	6	foreach ($cols as $col) {
176	6	$values[$col] = $object->$col;
177		}
178
179	6	return $this->ModifyTypesForDatabase($values);
180		}
181
182	6	protected function RememberDaftObjectDataUpdate(bool $exists, array $id, array $values) : void
183		{
184	6	if (count($values) > 0) {
185	6	if (false === $exists) {
186	6	$this->db->insert($this->DaftObjectDatabaseTable(), $values);
187		} else {
188	4	$this->db->update($this->DaftObjectDatabaseTable(), $values, $id);
189		}
190		}
191	6	}
192
193	6	protected function RememberDaftObjectData(DefinesOwnIdPropertiesInterface $object) : void
194		{
195		/**
196		* @var array<string, mixed> $id
197		*/
198	6	$id = [];
199
200		/**
201		* @var string $prop
202		*/
203	6	foreach ($object::DaftObjectIdProperties() as $prop) {
204	6	$id[$prop] = $object->$prop;
205		}
206
207		$this->db->tryFlatTransaction(function () use ($id, $object) : void {
208	6	$exists = $this->DaftObjectExistsInDatabase($id);
209	6	$values = $this->RememberDaftObjectDataValues($object, $exists);
210	6	$this->RememberDaftObjectDataUpdate($exists, $id, $values);
211	6	});
212	6	}
213
214	6	protected function RecallDaftObjectFromData($id) : ? DaftObject
215		{
216	6	$idkv = self::DaftObjectIdPropertiesFromType($this->type, $id);
217
218	6	return $this->RecallDaftObjectFromQuery($idkv);
219		}
220
221	6	protected function RecallDaftObjectFromQuery(array $idkv) : ? DefinesOwnIdPropertiesInterface
222		{
223	6	if (true === $this->DaftObjectExistsInDatabase($idkv)) {
224	6	$type = $this->type;
225
226		/**
227		* @var DefinesOwnIdPropertiesInterface $out
228		*/
229	6	$out = new $type($this->RecallDaftObjectDataFromQuery($idkv));
230
231	6	return $out;
232		}
233
234	4	return null;
235		}
236
237	6	protected function RecallDaftObjectDataFromQuery(array $idkv) : array
238		{
239		/**
240		* @var array[] $data
241		*/
242	6	$data = $this->db->safeQuery(
243		(
244		'SELECT * FROM ' .
245	6	$this->db->escapeIdentifier($this->DaftObjectDatabaseTable()) .
246	6	' WHERE ' .
247	6	implode(' AND ', array_map(
248		function (string $col) : string {
249	6	return $this->db->escapeIdentifier($col) . ' = ?';
250	6	},
251	6	array_keys($idkv)
252		)) .
253	6	' LIMIT 1'
254		),
255	6	array_values($idkv)
256		);
257
258	6	return $data[0];
259		}
260
261	6	private function DaftObjectExistsInDatabase(array $id) : bool
262		{
263	6	$where = [];
264		/**
265		* @var string $col
266		*/
267	6	foreach (array_keys($id) as $col) {
268	6	$where[] = $this->db->escapeIdentifier($col) . ' = ?';
269		}
270
271		return
272	6	(int) $this->db->single(
273		(
274		'SELECT COUNT(*) FROM ' .
275	6	$this->db->escapeIdentifier($this->DaftObjectDatabaseTable()) .
276	6	' WHERE ' .
277	6	implode(' AND ', $where)
278		),
279	6	array_values($id)
280	6	) >= 1;
281		}
282		}
283

SignpostMarv / daft-db-object

Push — master ( b43514...976808 )

DaftObjectExistsInDatabase() A

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Duplication

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