EAV::getType() - Code Metrics - hfw/db - Measure and Improve Code Quality continuously with Scrutinizer

EAV::getType() A
last analyzed 2021-07-26 13:53 UTC

↳ Parent: EAV

Complexity

Conditions	1
Paths	1

Size

Total Lines	3
Code Lines	1

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
cc	1
eloc	1
c	0
b	0
f	0
nc	1
nop	0
dl	0
loc	3
rs	10

<?php

namespace Helix\DB;

use Helix\DB;
use Helix\DB\Fluent\Predicate;

/**
 * Array storage in an extension table.
 *
 * @method static static factory(DB $db, string $name, string $type = 'string')
 */
class EAV extends Table
{

    /**
     * The scalar storage type for the `value` column (implied `NOT NULL`).
     *
     * @var string
     */
    protected $type;

    /**
     * @param DB $db
     * @param string $name
     * @param string $type
     */
    public function __construct(DB $db, string $name, string $type = 'string')
    {
        parent::__construct($db, $name, ['entity', 'attribute', 'value']);
        $this->type = $type;
    }

    /**
     * Whether an entity has an attribute.
     *
     * @param int $id
     * @param string $attribute
     * @return bool
     */
    public function exists(int $id, string $attribute): bool
    {
        $statement = $this->cache(__FUNCTION__, function () {
            return $this->select(['COUNT(*) > 0'])->where('entity = ? AND attribute = ?')->prepare();
        });
        $exists = (bool)$statement([$id, $attribute])->fetchColumn();
        $statement->closeCursor();
        return $exists;
    }

    /**
     * Self-joins to return a {@link Select} for the `entity` column,
     * matching on attribute and value.
     *
     * @see Predicate::match()
     *
     * @param array $match `[attribute => value]`. If empty, selects all IDs for entities having at least one attribute.
     * @return Select
     */
    public function findAll(array $match)
    {
        $select = $this->select([$this['entity']]);
        $prior = $this;
        foreach ($match as $attribute => $value) {
            $alias = $this->setName("{$this}__{$attribute}");
            $select->join("{$this} AS {$alias}",
                $alias['entity']->isEqual($prior['entity']),
                $alias['attribute']->isEqual($attribute),
                Predicate::match($this->db, $alias['value'], $value)
            );
            $prior = $alias;
        }
        $select->group($this['entity']);
        return $select;
    }

    /**
     * @return string
     */
    final public function getType(): string
    {
        return $this->type;
    }

    /**
     * Returns an entity's attributes.
     *
     * @param int $id
     * @return scalar[] `[attribute => value]`
     */
    public function load(int $id): array
    {
        $statement = $this->cache(__FUNCTION__, function () {
            $select = $this->select(['attribute', 'value']);
            $select->where('entity = ?');
            $select->order('attribute');
            return $select->prepare();
        });
        return array_map([$this, 'setType'], $statement([$id])->fetchAll(DB::FETCH_KEY_PAIR));
    }

    /**
     * Returns associative attribute-value arrays for the given IDs.
     *
     * @param int[] $ids
     * @return scalar[][] `[id => attribute => value]`
     */
    public function loadAll(array $ids): array
    {
        if (empty($ids)) {
            return [];
        }
        if (count($ids) === 1) {
            return [current($ids) => $this->load(current($ids))];
        }
        $loadAll = $this->select(['entity', 'attribute', 'value'])
            ->where(Predicate::match($this->db, 'entity', $this->db->marks(count($ids))))
            ->order('entity, attribute');
        $values = array_fill_keys($ids, []);
        foreach ($loadAll->getEach(array_values($ids)) as $row) {
            $values[$row['entity']][$row['attribute']] = $this->setType($row['value']);
        }
        return $values;
    }

    /**
     * Upserts an entity's attributes with those given.
     *
     * Stored attributes not given here are pruned.
     *
     * `NULL` attributes are also pruned.
     *
     * @param int $id
     * @param array $values `[attribute => value]`
     * @return $this
     */
    public function save(int $id, array $values)
    {
        // delete stale
        $this->delete([
            $this['entity']->isEqual($id),
            $this['attribute']->isNotEqual(array_keys($values))
        ]);

        // delete nulls
        if ($nulls = array_filter($values, 'is_null')) {
            $values = array_diff_key($values, $nulls);
            $this->delete([
                $this['entity']->isEqual($id),
                $this['attribute']->isEqual(array_keys($nulls))
            ]);
        }

        // upsert each
        $statement = $this->cache(__FUNCTION__, function () {
            if ($this->db->isSQLite()) {
                return $this->db->prepare(
                    "INSERT INTO {$this} (entity,attribute,value) VALUES (?,?,?)"
                    . " ON CONFLICT (entity,attribute) DO UPDATE SET value=excluded.value"
                );
            }
            return $this->db->prepare(
                "INSERT INTO {$this} (entity,attribute,value) VALUES (?,?,?)"
                . " ON DUPLICATE KEY UPDATE value=VALUES(value)"
            );
        });
        foreach ($values as $attribute => $value) {
            $statement->execute([$id, $attribute, $value]);
        }
        $statement->closeCursor();
        return $this;
    }

    /**
     * @param scalar $value
     * @return scalar
     */
    protected function setType($value)
    {
        settype($value, $this->type);
        return $value;
    }
}


1			<?php
2
3			namespace Helix\DB;
4
5			use Helix\DB;
6			use Helix\DB\Fluent\Predicate;
7
8			/**
9			* Array storage in an extension table.
10			*
11			* @method static static factory(DB $db, string $name, string $type = 'string')
12			*/
13			class EAV extends Table
14			{
15
16			/**
17			* The scalar storage type for the `value` column (implied `NOT NULL`).
18			*
19			* @var string
20			*/
21			protected $type;
22
23			/**
24			* @param DB $db
25			* @param string $name
26			* @param string $type
27			*/
28			public function __construct(DB $db, string $name, string $type = 'string')
29			{
30			parent::__construct($db, $name, ['entity', 'attribute', 'value']);
31			$this->type = $type;
32			}
33
34			/**
35			* Whether an entity has an attribute.
36			*
37			* @param int $id
38			* @param string $attribute
39			* @return bool
40			*/
41			public function exists(int $id, string $attribute): bool
42			{
43			$statement = $this->cache(__FUNCTION__, function () {
44			return $this->select(['COUNT(*) > 0'])->where('entity = ? AND attribute = ?')->prepare();
45			});
46			$exists = (bool)$statement([$id, $attribute])->fetchColumn();
47			$statement->closeCursor();
48			return $exists;
49			}
50
51			/**
52			* Self-joins to return a {@link Select} for the `entity` column,
53			* matching on attribute and value.
54			*
55			* @see Predicate::match()
56			*
57			* @param array $match `[attribute => value]`. If empty, selects all IDs for entities having at least one attribute.
58			* @return Select
59			*/
60			public function findAll(array $match)
61			{
62			$select = $this->select([$this['entity']]);
63			$prior = $this;
64			foreach ($match as $attribute => $value) {
65			$alias = $this->setName("{$this}__{$attribute}");
66			$select->join("{$this} AS {$alias}",
67			$alias['entity']->isEqual($prior['entity']),
68			$alias['attribute']->isEqual($attribute),
69			Predicate::match($this->db, $alias['value'], $value)
70			);
71			$prior = $alias;
72			}
73			$select->group($this['entity']);
74			return $select;
75			}
76
77			/**
78			* @return string
79			*/
80			final public function getType(): string
81			{
82			return $this->type;
83			}
84
85			/**
86			* Returns an entity's attributes.
87			*
88			* @param int $id
89			* @return scalar[] `[attribute => value]`
90			*/
91			public function load(int $id): array
92			{
93			$statement = $this->cache(__FUNCTION__, function () {
94			$select = $this->select(['attribute', 'value']);
95			$select->where('entity = ?');
96			$select->order('attribute');
97			return $select->prepare();
98			});
99			return array_map([$this, 'setType'], $statement([$id])->fetchAll(DB::FETCH_KEY_PAIR));
100			}
101
102			/**
103			* Returns associative attribute-value arrays for the given IDs.
104			*
105			* @param int[] $ids
106			* @return scalar[][] `[id => attribute => value]`
107			*/
108			public function loadAll(array $ids): array
109			{
110			if (empty($ids)) {
111			return [];
112			}
113			if (count($ids) === 1) {
114			return [current($ids) => $this->load(current($ids))];
115			}
116			$loadAll = $this->select(['entity', 'attribute', 'value'])
117			->where(Predicate::match($this->db, 'entity', $this->db->marks(count($ids))))
118			->order('entity, attribute');
119			$values = array_fill_keys($ids, []);
120			foreach ($loadAll->getEach(array_values($ids)) as $row) {
121			$values[$row['entity']][$row['attribute']] = $this->setType($row['value']);
122			}
123			return $values;
124			}
125
126			/**
127			* Upserts an entity's attributes with those given.
128			*
129			* Stored attributes not given here are pruned.
130			*
131			* `NULL` attributes are also pruned.
132			*
133			* @param int $id
134			* @param array $values `[attribute => value]`
135			* @return $this
136			*/
137			public function save(int $id, array $values)
138			{
139			// delete stale
140			$this->delete([
141			$this['entity']->isEqual($id),
142			$this['attribute']->isNotEqual(array_keys($values))
143			]);
144
145			// delete nulls
146			if ($nulls = array_filter($values, 'is_null')) {
147			$values = array_diff_key($values, $nulls);
148			$this->delete([
149			$this['entity']->isEqual($id),
150			$this['attribute']->isEqual(array_keys($nulls))
151			]);
152			}
153
154			// upsert each
155			$statement = $this->cache(__FUNCTION__, function () {
156			if ($this->db->isSQLite()) {
157			return $this->db->prepare(
158			"INSERT INTO {$this} (entity,attribute,value) VALUES (?,?,?)"
159			. " ON CONFLICT (entity,attribute) DO UPDATE SET value=excluded.value"
160			);
161			}
162			return $this->db->prepare(
163			"INSERT INTO {$this} (entity,attribute,value) VALUES (?,?,?)"
164			. " ON DUPLICATE KEY UPDATE value=VALUES(value)"
165			);
166			});
167			foreach ($values as $attribute => $value) {
168			$statement->execute([$id, $attribute, $value]);
169			}
170			$statement->closeCursor();
171			return $this;
172			}
173
174			/**
175			* @param scalar $value
176			* @return scalar
177			*/
178			protected function setType($value)
179			{
180			settype($value, $this->type);
181			return $value;
182			}
183			}
184

hfw / db

EAV::getType() A last analyzed 2021-07-26 13:53 UTC

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EAV::getType() A
last analyzed 2021-07-26 13:53 UTC