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1 | <?php |
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2 | |||
3 | namespace Soluto\Settings; |
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4 | |||
5 | use Yii; |
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6 | use yii\base\Component; |
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7 | use yii\db\Connection; |
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8 | use yii\db\Query; |
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9 | use yii\base\Event; |
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10 | |||
11 | class Settings extends Component |
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12 | { |
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13 | /** |
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14 | * @event SettingsEvent an event that is triggered before execute command. |
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15 | */ |
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16 | const EVENT_BEFORE_EXECUTE = 'beforeExecute'; |
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17 | |||
18 | /** |
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19 | * @var string Name of the table where configurations will be stored |
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20 | */ |
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21 | public $tableName = '{{%setting}}'; |
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22 | |||
23 | /** |
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24 | * @var string Name of column where keys will be stored |
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25 | */ |
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26 | public $keyColumnName = 'key'; |
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27 | |||
28 | /** |
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29 | * @var string Name of column where values will be stored |
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30 | */ |
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31 | public $valueColumnName = 'value'; |
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32 | |||
33 | /** |
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34 | * @return Connection the DB connection instance |
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35 | */ |
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36 | 2 | protected function getDb() |
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37 | { |
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38 | 2 | return Yii::$app->getDb(); |
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39 | } |
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40 | |||
41 | /** |
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42 | * Whether the configuration exists in the database |
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43 | * @param string $name configuration name |
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44 | * @param integer $tenantId The tenant id value |
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45 | * @return bool |
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46 | */ |
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47 | 2 | protected function exists($name) |
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48 | { |
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49 | 2 | $query = $this->createQuery($name); |
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50 | 2 | return $query->exists(); |
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51 | } |
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52 | |||
53 | /** |
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54 | * Returns configuration value from database |
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55 | * @param string $name configuration name |
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56 | * @return string value stored in database |
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57 | */ |
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58 | 1 | public function get($name, $defaultValue = null) |
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59 | { |
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60 | 1 | $value = null; |
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61 | 1 | $query = $this->createQuery($name); |
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62 | 1 | $row = $query->one($this->getDb()); |
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63 | |||
64 | 1 | $value = ($row) ? $row[$this->valueColumnName] : null; |
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65 | |||
66 | 1 | if (is_string($value) && trim($value) == '') { |
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67 | $value = null; |
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68 | } |
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69 | |||
70 | 1 | return ($value !== null) ? $value : $defaultValue; |
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71 | } |
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72 | |||
73 | /** |
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74 | * Store configuration value to database |
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75 | * @param string $name |
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76 | * @param mixed $value |
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77 | */ |
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78 | 2 | public function set($name, $value) |
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79 | { |
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80 | 2 | $db = $this->getDb(); |
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81 | 2 | $values = [$this->valueColumnName => $value]; |
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82 | 2 | $where = [$this->keyColumnName => $name]; |
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83 | |||
84 | 2 | $event = $this->beforeExecute(); |
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85 | 2 | if ($event->data) { |
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86 | 1 | $values = array_merge($event->data, $values); |
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87 | 1 | $where = array_merge($event->data, $where); |
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88 | } |
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89 | |||
90 | 2 | if ($this->exists($name)) { |
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91 | 1 | $db->createCommand() |
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92 | 1 | ->update($this->tableName, $values, $where) |
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93 | 1 | ->execute(); |
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94 | } else { |
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95 | 2 | $values = array_merge($values, $where); |
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96 | |||
97 | 2 | $db->createCommand() |
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98 | 2 | ->insert($this->tableName, $values) |
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99 | 2 | ->execute(); |
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100 | } |
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101 | 2 | } |
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102 | |||
103 | /** |
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104 | * Retrieves all configurations stored in database |
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105 | * @param integer $tenantId |
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106 | * @return array |
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107 | */ |
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108 | 1 | public function all() |
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109 | { |
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110 | 1 | $result = []; |
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111 | |||
112 | 1 | $query = $this->createQuery() |
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113 | 1 | ->addSelect($this->keyColumnName); |
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114 | |||
115 | 1 | $rows = $query->all($this->getDb()); |
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116 | |||
117 | 1 | foreach ($rows as $row) { |
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118 | 1 | $result[$row[$this->keyColumnName]] = $row[$this->valueColumnName]; |
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119 | } |
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120 | |||
121 | 1 | return $result; |
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122 | } |
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123 | |||
124 | /** |
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125 | * Store all configuration in database |
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126 | * @param array $names |
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127 | */ |
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128 | 1 | public function save($names) |
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129 | { |
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130 | 1 | foreach ($names as $key => $value) { |
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131 | 1 | $this->set($key, $value) ; |
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132 | } |
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133 | 1 | } |
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134 | |||
135 | /** |
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136 | * Remove specified setting |
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137 | * @param array|string $name |
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138 | */ |
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139 | 1 | public function remove($name) |
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140 | { |
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141 | 1 | $where = [$this->keyColumnName => $name]; |
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142 | |||
143 | 1 | $event = $this->beforeExecute(); |
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144 | 1 | if ($event->data) { |
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145 | $where = array_merge($event->data, $where); |
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146 | } |
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147 | |||
148 | 1 | $this->getDb() |
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149 | 1 | ->createCommand() |
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150 | 1 | ->delete($this->tableName, $where) |
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151 | 1 | ->execute(); |
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152 | 1 | } |
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153 | |||
154 | /** |
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155 | * Removes all settings |
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156 | */ |
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157 | 1 | public function removeAll() |
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158 | { |
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159 | 1 | $event = $this->beforeExecute(); |
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160 | 1 | $where = $event->data ? $event->data : ''; |
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161 | |||
162 | 1 | $this->getDb() |
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163 | 1 | ->createCommand() |
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164 | 1 | ->delete($this->tableName, $where) |
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165 | 1 | ->execute(); |
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166 | 1 | } |
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167 | |||
168 | /** |
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169 | * Creates query to find settings value |
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170 | * @param string $name |
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171 | * @return \yii\db\Query |
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172 | */ |
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173 | 2 | protected function createQuery($name = null) |
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174 | { |
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175 | 2 | $query = (new Query()) |
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176 | 2 | ->select([$this->valueColumnName]) |
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177 | 2 | ->from($this->tableName); |
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178 | |||
179 | 2 | $event = $this->beforeExecute(); |
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180 | |||
181 | 2 | if ($event->data) { |
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182 | 1 | $query->andWhere($event->data); |
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183 | } |
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184 | |||
185 | 2 | if ($name) { |
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186 | 2 | $query->andWhere([$this->keyColumnName => $name]); |
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187 | } |
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188 | |||
189 | 2 | return $query; |
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190 | } |
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191 | |||
192 | /** |
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193 | * This method is called at the before execute db command |
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194 | * @return yii\base\Event |
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195 | */ |
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196 | 2 | protected function beforeExecute() |
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197 | { |
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198 | 2 | $event = new Event(); |
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199 | 2 | $this->trigger(self::EVENT_BEFORE_EXECUTE, $event); |
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200 | 2 | return $event; |
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201 | } |
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202 | |||
203 | } |
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204 |
In PHP, under loose comparison (like
==
, or!=
, orswitch
conditions), values of different types might be equal.For
string
values, the empty string''
is a special case, in particular the following results might be unexpected: