PrepareTrait::count() - Code Metrics - Inspection of "修复：数据库启用配置失效" - dxkite/suda - Measure and Improve Code Quality continuously with Scrutinizer

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Push — master ( 87ab26...f9244b )

by 世昌

created 2019-07-14 01:25 UTC

PrepareTrait::count() A

↳ Parent: PrepareTrait

Complexity

Conditions	3
Paths	2

Size

Total Lines	6
Code Lines	3

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
cc	3
eloc	3
nc	2
nop	1
dl	0
loc	6
rs	10
c	0
b	0
f	0

<?php
namespace suda\database\statement;

use Countable;
use IteratorAggregate;
use suda\database\Binder;
use suda\database\exception\SQLException;

/**
 * Trait PrepareTrait
 * @package suda\database\statement
 */
trait PrepareTrait
{

    /**
     * 准备选择列
     *
     * @param string|array $reads
     * @param string $table
     * @return string
     */
    protected function prepareReadFields($reads, string $table = ''):string
    {
        if (is_string($reads)) {
            $fields = $reads;
        } else {
            $field = [];
            $prefix = strlen($table) ?"`{$table}`." :'';
            foreach ($reads as $want) {
                $field[] = $prefix."`$want`";
            }
            $fields = implode(',', $field);
        }
        return $fields;
    }

    /**
     * 准备条件列
     *
     * @param array $where
     * @return array
     * @throws SQLException
     */
    protected function prepareWhere(array $where)
    {
        $and = [];
        $binders = [];
        foreach ($where as $name => $value) {
            $query = $this->getQueryForArray($name, $value);
            $and[] = $query->getQuery();
            $binders  = array_merge($binders, $query->getBinder());
        }
        return [implode(' AND ', $and), $binders];
    }

    /**
     * @param string $name
     * @param $value
     * @return Query
     * @throws SQLException
     */
    private function getQueryForArray(string $name, $value)
    {
        if ($value instanceof IteratorAggregate) {
            return $this->prepareIn($name, $value);
        } elseif (is_array($value)) {
            list($op, $val) = $value;
            $op = trim($op);
            return $this->createQueryOperation($name, $op, $val);
        } else {
            return $this->createQueryOperation($name, '=', $value);
        }
    }

    /**
     * @param string $name
     * @param string $operation
     * @param string $indexName
     * @param mixed $value
     * @return Query
     * @throws SQLException
     */
    private function createQueryOperation(string $name, string $operation, $value, string $indexName = '')
    {
        if ($value instanceof Query) {
            return new Query("`{$name}` {$operation} ".$value, $value->getBinder());
        }
        if ($value instanceof Statement) {
            return new Query("`{$name}` {$operation} (".$value->getQuery().')', $value->getBinder());
        }
        if ($value instanceof IteratorAggregate || is_array($value)) {
            return $this->prepareIn($name, $value);
        }
        if (strlen($indexName) === 0) {
            $indexName = Binder::index($name);
        }
        return new Query("`{$name}` {$operation} :{$indexName}", [new Binder($indexName, $value)]);
    }

    /**
     * @param string $where
     * @param string $name
     * @param $value
     * @return Query
     * @throws SQLException
     */
    private function getQueryForString(string $where, string $name, $value)
    {
        if (is_array($value) || $value instanceof IteratorAggregate) {
            list($inSQL, $binders) = $this->prepareInParameter($value, $name);
            $name = ltrim($name, ':');
            $where = str_replace(':'.$name, $inSQL, $where);
            return new Query($where, $binders);
        } elseif ($value instanceof  Binder) {
            return new Query($where, [$value]);
        } else {
            return new Query($where, [new Binder($name, $value)]);
        }
    }

    /**
     * @param string $where
     * @param array $whereBinder
     * @return array
     * @throws SQLException
     */
    protected function prepareWhereString(string $where, array $whereBinder)
    {
        $newWhereBinder = [];
        foreach ($whereBinder as $name => $value) {
            $query = $this->getQueryForString($where, $name, $value);
            $where = $query->getQuery();
            $newWhereBinder = array_merge($newWhereBinder, $query->getBinder());
        }
        return [$where, $newWhereBinder];
    }


    /**
     * 准备In
     *
     * @param string $name
     * @param IteratorAggregate|array|Query|Statement $values
     * @return Query
     * @throws SQLException
     */
    protected function prepareIn(string $name, $values)
    {
        if ($values instanceof Query || $values instanceof Statement) {
            return $this->createQueryOperation($name, 'in', $values);
        }
        list($inSQL, $binders) = $this->prepareInParameter($values, $name);
        $sql = '`'.$name.'` IN ('.$inSQL.')';
        return new Query($sql, $binders);
    }

    /**
     * @param IteratorAggregate|array $values
     * @param string $name
     * @return array
     * @throws SQLException
     */
    protected function prepareInParameter($values, string $name)
    {
        if ($this->count($values) <= 0) {
            throw new SQLException('on field '.$name.' value can\'t be empty array');
        }
        $names = [];
        $binders = [];
        foreach ($values as $value) {
            $_name = Binder::index($name);
            $binders[] = new Binder($_name, $value);
            $names[] = ':'.$_name;
        }
        return [implode(',', $names), $binders];
    }

    /**
     * @param array|Countable|IteratorAggregate $value
     * @return int
     */
    private function count($value)
    {
        if (is_array($value) || $value instanceof Countable) {
            return count($value);
        }
        return iterator_count($value);
    }
    
    /**
     * 准备更新
     *
     * @param array $data
     * @return array
     */
    protected function prepareUpdateSet(array $data)
    {
        $binders = [];
        $sets = [];
        foreach ($data as $name => $value) {
            $_name = Binder::index($name);
            $binders[] = new Binder($_name, $value, $name);
            $sets[] = "`{$name}`=:{$_name}";
        }
        return [implode(',', $sets), $binders];
    }

    /**
     * 编译 ? 字符
     *
     * @param string $sql
     * @param array $parameter
     * @return array
     */
    protected function prepareQueryMark(string $sql, array $parameter)
    {
        $binders = [];
        $query = preg_replace_callback('/\?/', function ($match) use (&$binders, $parameter) {
            $index = count($binders);
            if (array_key_exists($index, $parameter)) {
                $name = Binder::index($index);
                if (is_array($parameter[$index]) || $parameter[$index] instanceof IteratorAggregate) {
                    list($inSQL, $inBinders) = $this->prepareInParameter($parameter[$index], $index);
                    $binders = array_merge($binders, $inBinders);
                    return $inSQL;
                } else {
                    $binder = new Binder($name, $parameter[$index]);
                    $binders[] = $binder;
                    return ':'.$binder->getName();
                }
            }
            return $match[0];
        }, $sql);
        return [$query, $binders];
    }

    /**
     * 合并绑定工具
     *
     * @param Binder[] $binderArray
     * @param array $parameter
     * @return Binder[]
     */
    protected function mergeBinder(array $binderArray, array $parameter)
    {
        foreach ($parameter as $key => $value) {
            if (! ($value instanceof Binder)) {
                $value = new Binder($key, $value);
            }
            if (!in_array($value, $binderArray)) {
                $binderArray[] = $value;
            }
        }
        return $binderArray;
    }
}


1			<?php
2			namespace suda\database\statement;
3
4			use Countable;
5			use IteratorAggregate;
6			use suda\database\Binder;
7			use suda\database\exception\SQLException;
8
9			/**
10			* Trait PrepareTrait
11			* @package suda\database\statement
12			*/
13			trait PrepareTrait
14			{
15
16			/**
17			* 准备选择列
18			*
19			* @param string\|array $reads
20			* @param string $table
21			* @return string
22			*/
23			protected function prepareReadFields($reads, string $table = ''):string
24			{
25			if (is_string($reads)) {
26			$fields = $reads;
27			} else {
28			$field = [];
29			$prefix = strlen($table) ?"`{$table}`." :'';
30			foreach ($reads as $want) {
31			$field[] = $prefix."`$want`";
32			}
33			$fields = implode(',', $field);
34			}
35			return $fields;
36			}
37
38			/**
39			* 准备条件列
40			*
41			* @param array $where
42			* @return array
43			* @throws SQLException
44			*/
45			protected function prepareWhere(array $where)
46			{
47			$and = [];
48			$binders = [];
49			foreach ($where as $name => $value) {
50			$query = $this->getQueryForArray($name, $value);
51			$and[] = $query->getQuery();
52			$binders = array_merge($binders, $query->getBinder());
53			}
54			return [implode(' AND ', $and), $binders];
55			}
56
57			/**
58			* @param string $name
59			* @param $value
60			* @return Query
61			* @throws SQLException
62			*/
63			private function getQueryForArray(string $name, $value)
64			{
65			if ($value instanceof IteratorAggregate) {
66			return $this->prepareIn($name, $value);
67			} elseif (is_array($value)) {
68			list($op, $val) = $value;
69			$op = trim($op);
70			return $this->createQueryOperation($name, $op, $val);
71			} else {
72			return $this->createQueryOperation($name, '=', $value);
73			}
74			}
75
76			/**
77			* @param string $name
78			* @param string $operation
79			* @param string $indexName
80			* @param mixed $value
81			* @return Query
82			* @throws SQLException
83			*/
84			private function createQueryOperation(string $name, string $operation, $value, string $indexName = '')
85			{
86			if ($value instanceof Query) {
87			return new Query("`{$name}` {$operation} ".$value, $value->getBinder());
88			}
89			if ($value instanceof Statement) {
90			return new Query("`{$name}` {$operation} (".$value->getQuery().')', $value->getBinder());
91			}
92			if ($value instanceof IteratorAggregate \|\| is_array($value)) {
93			return $this->prepareIn($name, $value);
94			}
95			if (strlen($indexName) === 0) {
96			$indexName = Binder::index($name);
97			}
98			return new Query("`{$name}` {$operation} :{$indexName}", [new Binder($indexName, $value)]);
99			}
100
101			/**
102			* @param string $where
103			* @param string $name
104			* @param $value
105			* @return Query
106			* @throws SQLException
107			*/
108			private function getQueryForString(string $where, string $name, $value)
109			{
110			if (is_array($value) \|\| $value instanceof IteratorAggregate) {
111			list($inSQL, $binders) = $this->prepareInParameter($value, $name);
112			$name = ltrim($name, ':');
113			$where = str_replace(':'.$name, $inSQL, $where);
114			return new Query($where, $binders);
115			} elseif ($value instanceof Binder) {
116			return new Query($where, [$value]);
117			} else {
118			return new Query($where, [new Binder($name, $value)]);
119			}
120			}
121
122			/**
123			* @param string $where
124			* @param array $whereBinder
125			* @return array
126			* @throws SQLException
127			*/
128			protected function prepareWhereString(string $where, array $whereBinder)
129			{
130			$newWhereBinder = [];
131			foreach ($whereBinder as $name => $value) {
132			$query = $this->getQueryForString($where, $name, $value);
133			$where = $query->getQuery();
134			$newWhereBinder = array_merge($newWhereBinder, $query->getBinder());
135			}
136			return [$where, $newWhereBinder];
137			}
138
139
140			/**
141			* 准备In
142			*
143			* @param string $name
144			* @param IteratorAggregate\|array\|Query\|Statement $values
145			* @return Query
146			* @throws SQLException
147			*/
148			protected function prepareIn(string $name, $values)
149			{
150			if ($values instanceof Query \|\| $values instanceof Statement) {
151			return $this->createQueryOperation($name, 'in', $values);
152			}
153			list($inSQL, $binders) = $this->prepareInParameter($values, $name);
154			$sql = '`'.$name.'` IN ('.$inSQL.')';
155			return new Query($sql, $binders);
156			}
157
158			/**
159			* @param IteratorAggregate\|array $values
160			* @param string $name
161			* @return array
162			* @throws SQLException
163			*/
164			protected function prepareInParameter($values, string $name)
165			{
166			if ($this->count($values) <= 0) {
167			throw new SQLException('on field '.$name.' value can\'t be empty array');
168			}
169			$names = [];
170			$binders = [];
171			foreach ($values as $value) {
172			$_name = Binder::index($name);
173			$binders[] = new Binder($_name, $value);
174			$names[] = ':'.$_name;
175			}
176			return [implode(',', $names), $binders];
177			}
178
179			/**
180			* @param array\|Countable\|IteratorAggregate $value
181			* @return int
182			*/
183			private function count($value)
184			{
185			if (is_array($value) \|\| $value instanceof Countable) {
186			return count($value);
187			}
188			return iterator_count($value);
189			}
190
191			/**
192			* 准备更新
193			*
194			* @param array $data
195			* @return array
196			*/
197			protected function prepareUpdateSet(array $data)
198			{
199			$binders = [];
200			$sets = [];
201			foreach ($data as $name => $value) {
202			$_name = Binder::index($name);
203			$binders[] = new Binder($_name, $value, $name);
204			$sets[] = "`{$name}`=:{$_name}";
205			}
206			return [implode(',', $sets), $binders];
207			}
208
209			/**
210			* 编译 ? 字符
211			*
212			* @param string $sql
213			* @param array $parameter
214			* @return array
215			*/
216			protected function prepareQueryMark(string $sql, array $parameter)
217			{
218			$binders = [];
219			$query = preg_replace_callback('/\?/', function ($match) use (&$binders, $parameter) {
220			$index = count($binders);
221			if (array_key_exists($index, $parameter)) {
222			$name = Binder::index($index);
223			if (is_array($parameter[$index]) \|\| $parameter[$index] instanceof IteratorAggregate) {
224			list($inSQL, $inBinders) = $this->prepareInParameter($parameter[$index], $index);
225			$binders = array_merge($binders, $inBinders);
226			return $inSQL;
227			} else {
228			$binder = new Binder($name, $parameter[$index]);
229			$binders[] = $binder;
230			return ':'.$binder->getName();
231			}
232			}
233			return $match[0];
234			}, $sql);
235			return [$query, $binders];
236			}
237
238			/**
239			* 合并绑定工具
240			*
241			* @param Binder[] $binderArray
242			* @param array $parameter
243			* @return Binder[]
244			*/
245			protected function mergeBinder(array $binderArray, array $parameter)
246			{
247			foreach ($parameter as $key => $value) {
248			if (! ($value instanceof Binder)) {
249			$value = new Binder($key, $value);
250			}
251			if (!in_array($value, $binderArray)) {
252			$binderArray[] = $value;
253			}
254			}
255			return $binderArray;
256			}
257			}
258

dxkite / suda

Push — master ( 87ab26...f9244b )

PrepareTrait::count() A

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