summaryrefslogtreecommitdiff
path: root/src/Database/Db.php
blob: 7042998fd5d6c60c2acd8c1e9a19ee75dac39551 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
<?php

namespace Engelsystem\Database;

use PDO;
use PDOException;
use PDOStatement;

class Db
{
    /** @var PDO */
    protected static $db;

    /** @var PDOStatement */
    protected static $stm = null;

    /** @var bool */
    protected static $lastStatus = true;

    /**
     * Connect to database
     *
     * @param string $dsn
     * @param string $username
     * @param string $password
     * @param array  $options
     * @return bool
     */
    public static function connect($dsn, $username = null, $password = null, $options = [])
    {
        try {
            self::$db = new PDO($dsn, $username, $password, $options);
        } catch (PDOException $e) {
            return false;
        }

        return true;
    }

    /**
     * Run a prepared query
     *
     * @param string $query
     * @param array  $bindings
     * @return PDOStatement
     */
    public static function query($query, array $bindings = [])
    {
        self::$stm = self::$db->prepare($query);
        self::$lastStatus = self::$stm->execute($bindings);

        return self::$stm;
    }

    /**
     * Run a sql query
     *
     * @param string $query
     * @return bool
     */
    public static function unprepared($query)
    {
        self::$stm = self::$db->query($query);
        self::$lastStatus = (self::$stm instanceof PDOStatement);

        return self::$lastStatus;
    }

    /**
     * Run a select query
     *
     * @param string $query
     * @param array  $bindings
     * @return array
     */
    public static function select($query, array $bindings = [])
    {
        self::query($query, $bindings);

        return self::$stm->fetchAll(PDO::FETCH_ASSOC);
    }

    /**
     * Run a select query and return only the first result or null if no result is found.
     *
     * @param string $query
     * @param array  $bindings
     * @return array|null
     */
    public static function selectOne($query, array $bindings = [])
    {
        $result = self::select($query, $bindings);

        if (empty($result)) {
            return null;
        }

        return array_shift($result);
    }

    /**
     * Run an insert query
     *
     * @param string $query
     * @param array  $bindings
     * @return int Row count
     */
    public static function insert($query, array $bindings = [])
    {
        self::query($query, $bindings);

        return self::$stm->rowCount();
    }

    /**
     * Run an update query
     *
     * @param string $query
     * @param array  $bindings
     * @return int
     */
    public static function update($query, array $bindings = [])
    {
        self::query($query, $bindings);

        return self::$stm->rowCount();
    }

    /**
     * Run a delete query
     *
     * @param string $query
     * @param array  $bindings
     * @return int
     */
    public static function delete($query, array $bindings = [])
    {
        self::query($query, $bindings);

        return self::$stm->rowCount();
    }

    /**
     * Run a single statement
     *
     * @param string $query
     * @param array  $bindings
     * @return bool
     */
    public static function statement($query, array $bindings = [])
    {
        self::query($query, $bindings);

        return self::$lastStatus;
    }

    /**
     * Returns the last error
     *
     * @return array
     */
    public static function getError()
    {
        if (!self::$stm instanceof PDOStatement) {
            return [-1, null, null];
        }

        return self::$stm->errorInfo();
    }

    /**
     * Get the PDO instance
     *
     * @return PDO
     */
    public static function getPdo()
    {
        return self::$db;
    }

    /**
     * @return PDOStatement|false|null
     */
    public static function getStm()
    {
        return self::$stm;
    }
}