Complex classes like Schema often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes. You can also have a look at the cohesion graph to spot any un-connected, or weakly-connected components.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use Schema, and based on these observations, apply Extract Interface, too.
1 | <?php |
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13 | class Schema implements \JsonSerializable, \ArrayAccess { |
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14 | /** |
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15 | * Trigger a notice when extraneous properties are encountered during validation. |
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16 | */ |
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17 | const VALIDATE_EXTRA_PROPERTY_NOTICE = 0x1; |
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18 | |||
19 | /** |
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20 | * Throw a ValidationException when extraneous properties are encountered during validation. |
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21 | */ |
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22 | const VALIDATE_EXTRA_PROPERTY_EXCEPTION = 0x2; |
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23 | |||
24 | /** |
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25 | * @var array All the known types. |
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26 | * |
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27 | * If this is ever given some sort of public access then remove the static. |
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28 | */ |
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29 | private static $types = [ |
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30 | 'array' => ['a'], |
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31 | 'object' => ['o'], |
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32 | 'integer' => ['i', 'int'], |
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33 | 'string' => ['s', 'str'], |
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34 | 'number' => ['f', 'float'], |
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35 | 'boolean' => ['b', 'bool'], |
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36 | 'timestamp' => ['ts'], |
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37 | 'datetime' => ['dt'], |
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38 | 'null' => ['n'] |
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39 | ]; |
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40 | |||
41 | /** |
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42 | * @var string The regular expression to strictly determine if a string is a date. |
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43 | */ |
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44 | private static $DATE_REGEX = '`^\d{4}-\d{2}-\d{2}([ T]\d{2}:\d{2}(:\d{2})?)?`i'; |
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45 | |||
46 | private $schema = []; |
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47 | |||
48 | /** |
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49 | * @var int A bitwise combination of the various **Schema::FLAG_*** constants. |
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50 | */ |
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51 | private $flags = 0; |
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52 | |||
53 | /** |
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54 | * @var array An array of callbacks that will filter data in the schema. |
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55 | */ |
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56 | private $filters = []; |
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57 | |||
58 | /** |
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59 | * @var array An array of callbacks that will custom validate the schema. |
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60 | */ |
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61 | private $validators = []; |
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62 | |||
63 | /** |
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64 | * @var string|Validation The name of the class or an instance that will be cloned. |
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65 | */ |
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66 | private $validationClass = Validation::class; |
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67 | |||
68 | |||
69 | /// Methods /// |
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70 | |||
71 | /** |
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72 | * Initialize an instance of a new {@link Schema} class. |
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73 | * |
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74 | * @param array $schema The array schema to validate against. |
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75 | */ |
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76 | 202 | public function __construct($schema = []) { |
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79 | |||
80 | /** |
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81 | * Grab the schema's current description. |
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82 | * |
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83 | * @return string |
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84 | */ |
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85 | 1 | public function getDescription() { |
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88 | |||
89 | /** |
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90 | * Set the description for the schema. |
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91 | * |
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92 | * @param string $description The new description. |
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93 | * @throws \InvalidArgumentException Throws an exception when the provided description is not a string. |
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94 | * @return Schema |
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95 | */ |
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96 | 2 | public function setDescription($description) { |
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97 | 2 | if (is_string($description)) { |
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98 | 1 | $this->schema['description'] = $description; |
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99 | 1 | } else { |
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100 | 1 | throw new \InvalidArgumentException("The description is not a valid string.", 500); |
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101 | } |
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102 | |||
103 | 1 | return $this; |
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104 | } |
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105 | |||
106 | /** |
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107 | * Get a schema field. |
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108 | * |
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109 | * @param string|array $path The JSON schema path of the field with parts separated by dots. |
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110 | * @param mixed $default The value to return if the field isn't found. |
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111 | * @return mixed Returns the field value or `$default`. |
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112 | */ |
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113 | 4 | public function getField($path, $default = null) { |
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114 | 4 | if (is_string($path)) { |
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115 | 4 | $path = explode('.', $path); |
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116 | 4 | } |
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117 | |||
118 | 4 | $value = $this->schema; |
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119 | 4 | foreach ($path as $i => $subKey) { |
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120 | 4 | if (is_array($value) && isset($value[$subKey])) { |
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121 | 4 | $value = $value[$subKey]; |
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122 | 4 | } elseif ($value instanceof Schema) { |
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123 | 1 | return $value->getField(array_slice($path, $i), $default); |
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124 | } else { |
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125 | return $default; |
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126 | } |
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127 | 4 | } |
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128 | 4 | return $value; |
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129 | } |
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130 | |||
131 | /** |
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132 | * Set a schema field. |
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133 | * |
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134 | * @param string|array $path The JSON schema path of the field with parts separated by dots. |
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135 | * @param mixed $value The new value. |
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136 | * @return $this |
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137 | */ |
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138 | 3 | public function setField($path, $value) { |
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139 | 3 | if (is_string($path)) { |
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140 | 3 | $path = explode('.', $path); |
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141 | 3 | } |
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142 | |||
143 | 3 | $selection = &$this->schema; |
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144 | 3 | foreach ($path as $i => $subSelector) { |
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145 | 3 | if (is_array($selection)) { |
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146 | 3 | if (!isset($selection[$subSelector])) { |
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147 | 1 | $selection[$subSelector] = []; |
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148 | 1 | } |
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149 | 3 | } elseif ($selection instanceof Schema) { |
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150 | 1 | $selection->setField(array_slice($path, $i), $value); |
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151 | 1 | return $this; |
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152 | } else { |
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153 | $selection = [$subSelector => []]; |
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154 | } |
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155 | 3 | $selection = &$selection[$subSelector]; |
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156 | 3 | } |
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157 | |||
158 | 3 | $selection = $value; |
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159 | 3 | return $this; |
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160 | } |
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161 | |||
162 | /** |
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163 | * Get the ID for the schema. |
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164 | * |
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165 | * @return string |
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166 | */ |
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167 | 3 | public function getID() { |
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170 | |||
171 | /** |
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172 | * Set the ID for the schema. |
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173 | * |
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174 | * @param string $id The new ID. |
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175 | * @throws \InvalidArgumentException Throws an exception when the provided ID is not a string. |
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176 | * @return Schema |
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177 | */ |
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178 | 1 | public function setID($id) { |
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179 | 1 | if (is_string($id)) { |
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180 | 1 | $this->schema['id'] = $id; |
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181 | 1 | } else { |
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182 | throw new \InvalidArgumentException("The ID is not a valid string.", 500); |
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183 | } |
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184 | |||
185 | 1 | return $this; |
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186 | } |
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187 | |||
188 | /** |
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189 | * Return the validation flags. |
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190 | * |
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191 | * @return int Returns a bitwise combination of flags. |
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192 | */ |
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193 | 1 | public function getFlags() { |
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196 | |||
197 | /** |
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198 | * Set the validation flags. |
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199 | * |
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200 | * @param int $flags One or more of the **Schema::FLAG_*** constants. |
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201 | * @return Schema Returns the current instance for fluent calls. |
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202 | */ |
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203 | 8 | public function setFlags($flags) { |
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211 | |||
212 | /** |
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213 | * Whether or not the schema has a flag (or combination of flags). |
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214 | * |
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215 | * @param int $flag One or more of the **Schema::VALIDATE_*** constants. |
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216 | * @return bool Returns **true** if all of the flags are set or **false** otherwise. |
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217 | */ |
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218 | 18 | public function hasFlag($flag) { |
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221 | |||
222 | /** |
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223 | * Set a flag. |
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224 | * |
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225 | * @param int $flag One or more of the **Schema::VALIDATE_*** constants. |
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226 | * @param bool $value Either true or false. |
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227 | * @return $this |
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228 | */ |
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229 | 1 | public function setFlag($flag, $value) { |
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230 | 1 | if ($value) { |
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231 | 1 | $this->flags = $this->flags | $flag; |
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232 | 1 | } else { |
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233 | 1 | $this->flags = $this->flags & ~$flag; |
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234 | } |
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235 | 1 | return $this; |
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236 | } |
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237 | |||
238 | /** |
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239 | * Merge a schema with this one. |
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240 | * |
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241 | * @param Schema $schema A scheme instance. Its parameters will be merged into the current instance. |
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242 | * @return $this |
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243 | */ |
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244 | 3 | public function merge(Schema $schema) { |
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248 | |||
249 | /** |
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250 | * Add another schema to this one. |
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251 | * |
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252 | * Adding schemas together is analogous to array addition. When you add a schema it will only add missing information. |
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253 | * |
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254 | * @param Schema $schema The schema to add. |
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255 | * @param bool $addProperties Whether to add properties that don't exist in this schema. |
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256 | * @return $this |
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257 | */ |
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258 | 3 | public function add(Schema $schema, $addProperties = false) { |
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262 | |||
263 | /** |
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264 | * The internal implementation of schema merging. |
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265 | * |
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266 | * @param array &$target The target of the merge. |
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267 | * @param array $source The source of the merge. |
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268 | * @param bool $overwrite Whether or not to replace values. |
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269 | * @param bool $addProperties Whether or not to add object properties to the target. |
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270 | * @return array |
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271 | */ |
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272 | 6 | private function mergeInternal(array &$target, array $source, $overwrite = true, $addProperties = true) { |
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273 | // We need to do a fix for required properties here. |
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274 | 6 | if (isset($target['properties']) && !empty($source['required'])) { |
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275 | 4 | $required = isset($target['required']) ? $target['required'] : []; |
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276 | |||
277 | 4 | if (isset($source['required']) && $addProperties) { |
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278 | 3 | $newProperties = array_diff(array_keys($source['properties']), array_keys($target['properties'])); |
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279 | 3 | $newRequired = array_intersect($source['required'], $newProperties); |
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280 | |||
281 | 3 | $required = array_merge($required, $newRequired); |
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282 | 3 | } |
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283 | 4 | } |
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284 | |||
285 | |||
286 | 6 | foreach ($source as $key => $val) { |
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287 | 6 | if (is_array($val) && array_key_exists($key, $target) && is_array($target[$key])) { |
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288 | 6 | if ($key === 'properties' && !$addProperties) { |
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289 | // We just want to merge the properties that exist in the destination. |
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290 | 1 | foreach ($val as $name => $prop) { |
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291 | 1 | if (isset($target[$key][$name])) { |
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292 | 1 | $this->mergeInternal($target[$key][$name], $prop, $overwrite, $addProperties); |
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293 | 1 | } |
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294 | 1 | } |
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295 | 6 | } elseif (isset($val[0]) || isset($target[$key][0])) { |
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296 | 4 | if ($overwrite) { |
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297 | // This is a numeric array, so just do a merge. |
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298 | 2 | $merged = array_merge($target[$key], $val); |
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299 | 2 | if (is_string($merged[0])) { |
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300 | 2 | $merged = array_keys(array_flip($merged)); |
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301 | 2 | } |
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302 | 2 | $target[$key] = $merged; |
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303 | 2 | } |
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304 | 4 | } else { |
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305 | 3 | $target[$key] = $this->mergeInternal($target[$key], $val, $overwrite, $addProperties); |
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306 | } |
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307 | 6 | } elseif (!$overwrite && array_key_exists($key, $target) && !is_array($val)) { |
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308 | // Do nothing, we aren't replacing. |
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309 | 3 | } else { |
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310 | 5 | $target[$key] = $val; |
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311 | } |
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312 | 6 | } |
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313 | |||
314 | 6 | if (isset($required)) { |
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315 | 4 | if (empty($required)) { |
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316 | 1 | unset($target['required']); |
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317 | 1 | } else { |
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318 | 4 | $target['required'] = $required; |
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319 | } |
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320 | 4 | } |
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321 | |||
322 | 6 | return $target; |
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323 | } |
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324 | |||
325 | // public function overlay(Schema $schema ) |
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326 | |||
327 | /** |
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328 | * Returns the internal schema array. |
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329 | * |
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330 | * @return array |
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331 | * @see Schema::jsonSerialize() |
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332 | */ |
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333 | 15 | public function getSchemaArray() { |
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336 | |||
337 | /** |
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338 | * Parse a short schema and return the associated schema. |
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339 | * |
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340 | * @param array $arr The schema array. |
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341 | * @param mixed ...$args Constructor arguments for the schema instance. |
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342 | * @return static Returns a new schema. |
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343 | */ |
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344 | 166 | public static function parse(array $arr, ...$args) { |
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349 | |||
350 | /** |
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351 | * Parse a schema in short form into a full schema array. |
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352 | * |
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353 | * @param array $arr The array to parse into a schema. |
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354 | * @return array The full schema array. |
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355 | * @throws \InvalidArgumentException Throws an exception when an item in the schema is invalid. |
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356 | */ |
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357 | 166 | protected function parseInternal(array $arr) { |
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358 | 166 | if (empty($arr)) { |
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359 | // An empty schema validates to anything. |
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360 | 7 | return []; |
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361 | 160 | } elseif (isset($arr['type'])) { |
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362 | // This is a long form schema and can be parsed as the root. |
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363 | return $this->parseNode($arr); |
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364 | } else { |
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365 | // Check for a root schema. |
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366 | 160 | $value = reset($arr); |
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367 | 160 | $key = key($arr); |
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368 | 160 | if (is_int($key)) { |
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369 | 101 | $key = $value; |
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370 | 101 | $value = null; |
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371 | 101 | } |
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372 | 160 | list ($name, $param) = $this->parseShortParam($key, $value); |
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373 | 160 | if (empty($name)) { |
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374 | 61 | return $this->parseNode($param, $value); |
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375 | } |
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376 | } |
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377 | |||
378 | // If we are here then this is n object schema. |
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379 | 102 | list($properties, $required) = $this->parseProperties($arr); |
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380 | |||
381 | $result = [ |
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382 | 102 | 'type' => 'object', |
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383 | 102 | 'properties' => $properties, |
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384 | 'required' => $required |
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385 | 102 | ]; |
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386 | |||
387 | 102 | return array_filter($result); |
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388 | } |
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389 | |||
390 | /** |
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391 | * Parse a schema node. |
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392 | * |
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393 | * @param array $node The node to parse. |
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394 | * @param mixed $value Additional information from the node. |
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395 | * @return array Returns a JSON schema compatible node. |
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396 | */ |
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397 | 160 | private function parseNode($node, $value = null) { |
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398 | 160 | if (is_array($value)) { |
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399 | // The value describes a bit more about the schema. |
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400 | 57 | switch ($node['type']) { |
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401 | 57 | case 'array': |
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402 | 11 | if (isset($value['items'])) { |
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403 | // The value includes array schema information. |
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404 | 4 | $node = array_replace($node, $value); |
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405 | 4 | } else { |
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406 | 7 | $node['items'] = $this->parseInternal($value); |
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407 | } |
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408 | 11 | break; |
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409 | 47 | case 'object': |
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410 | // The value is a schema of the object. |
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411 | 11 | if (isset($value['properties'])) { |
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412 | list($node['properties']) = $this->parseProperties($value['properties']); |
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413 | } else { |
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414 | 11 | list($node['properties'], $required) = $this->parseProperties($value); |
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415 | 11 | if (!empty($required)) { |
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416 | 11 | $node['required'] = $required; |
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417 | 11 | } |
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418 | } |
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419 | 11 | break; |
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420 | 36 | default: |
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421 | 36 | $node = array_replace($node, $value); |
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422 | 36 | break; |
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423 | 57 | } |
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424 | 160 | } elseif (is_string($value)) { |
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425 | 96 | if ($node['type'] === 'array' && $arrType = $this->getType($value)) { |
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426 | 5 | $node['items'] = ['type' => $arrType]; |
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427 | 96 | } elseif (!empty($value)) { |
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428 | 23 | $node['description'] = $value; |
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429 | 23 | } |
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430 | 122 | } elseif ($value === null) { |
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431 | // Parse child elements. |
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432 | 27 | if ($node['type'] === 'array' && isset($node['items'])) { |
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433 | // The value includes array schema information. |
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434 | $node['items'] = $this->parseInternal($node['items']); |
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435 | 27 | } elseif ($node['type'] === 'object' && isset($node['properties'])) { |
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436 | list($node['properties']) = $this->parseProperties($node['properties']); |
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437 | |||
438 | } |
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439 | 27 | } |
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440 | |||
441 | 160 | if (is_array($node) && $node['type'] === null) { |
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442 | 3 | unset($node['type']); |
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443 | 3 | } |
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444 | |||
445 | 160 | return $node; |
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446 | } |
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447 | |||
448 | /** |
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449 | * Parse the schema for an object's properties. |
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450 | * |
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451 | * @param array $arr An object property schema. |
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452 | * @return array Returns a schema array suitable to be placed in the **properties** key of a schema. |
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453 | */ |
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454 | 102 | private function parseProperties(array $arr) { |
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455 | 102 | $properties = []; |
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456 | 102 | $requiredProperties = []; |
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457 | 102 | foreach ($arr as $key => $value) { |
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458 | // Fix a schema specified as just a value. |
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459 | 102 | if (is_int($key)) { |
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460 | 78 | if (is_string($value)) { |
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461 | 78 | $key = $value; |
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462 | 78 | $value = ''; |
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463 | 78 | } else { |
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464 | throw new \InvalidArgumentException("Schema at position $key is not a valid parameter.", 500); |
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465 | } |
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466 | 78 | } |
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467 | |||
468 | // The parameter is defined in the key. |
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469 | 102 | list($name, $param, $required) = $this->parseShortParam($key, $value); |
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470 | |||
471 | 102 | $node = $this->parseNode($param, $value); |
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472 | |||
473 | 102 | $properties[$name] = $node; |
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474 | 102 | if ($required) { |
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475 | 56 | $requiredProperties[] = $name; |
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476 | 56 | } |
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477 | 102 | } |
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478 | 102 | return array($properties, $requiredProperties); |
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479 | } |
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480 | |||
481 | /** |
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482 | * Parse a short parameter string into a full array parameter. |
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483 | * |
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484 | * @param string $key The short parameter string to parse. |
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485 | * @param array $value An array of other information that might help resolve ambiguity. |
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486 | * @return array Returns an array in the form `[string name, array param, bool required]`. |
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487 | * @throws \InvalidArgumentException Throws an exception if the short param is not in the correct format. |
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488 | */ |
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489 | 160 | public function parseShortParam($key, $value = []) { |
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490 | // Is the parameter optional? |
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491 | 160 | if (substr($key, -1) === '?') { |
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492 | 67 | $required = false; |
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493 | 67 | $key = substr($key, 0, -1); |
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494 | 67 | } else { |
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495 | 114 | $required = true; |
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496 | } |
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497 | |||
498 | // Check for a type. |
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499 | 160 | $parts = explode(':', $key); |
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500 | 160 | $name = $parts[0]; |
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501 | 160 | $allowNull = false; |
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502 | 160 | if (!empty($parts[1])) { |
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503 | 156 | $types = explode('|', $parts[1]); |
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504 | 156 | foreach ($types as $alias) { |
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505 | 156 | $found = $this->getType($alias); |
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506 | 156 | if ($found === null) { |
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507 | throw new \InvalidArgumentException("Unknown type '$alias'", 500); |
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508 | 156 | } elseif ($found === 'null') { |
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509 | 11 | $allowNull = true; |
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510 | 11 | } else { |
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511 | 156 | $type = $found; |
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512 | } |
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513 | 156 | } |
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514 | 156 | } else { |
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515 | 8 | $type = null; |
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516 | } |
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517 | |||
518 | 160 | if ($value instanceof Schema) { |
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519 | 3 | if ($type === 'array') { |
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520 | 1 | $param = ['type' => $type, 'items' => $value]; |
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521 | 1 | } else { |
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522 | 2 | $param = $value; |
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523 | } |
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524 | 160 | } elseif (isset($value['type'])) { |
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525 | 3 | $param = $value; |
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526 | |||
527 | 3 | if (!empty($type) && $type !== $param['type']) { |
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528 | throw new \InvalidArgumentException("Type mismatch between $type and {$param['type']} for field $name.", 500); |
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529 | } |
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530 | 3 | } else { |
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531 | 157 | if (empty($type) && !empty($parts[1])) { |
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532 | throw new \InvalidArgumentException("Invalid type {$parts[1]} for field $name.", 500); |
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533 | } |
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534 | 157 | $param = ['type' => $type]; |
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535 | |||
536 | // Parsed required strings have a minimum length of 1. |
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537 | 157 | if ($type === 'string' && !empty($name) && $required && (!isset($value['default']) || $value['default'] !== '')) { |
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538 | 37 | $param['minLength'] = 1; |
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539 | 37 | } |
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540 | } |
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541 | 160 | if ($allowNull) { |
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542 | 11 | $param['allowNull'] = true; |
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543 | 11 | } |
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544 | |||
545 | 160 | return [$name, $param, $required]; |
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546 | } |
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547 | |||
548 | /** |
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549 | * Add a custom filter to change data before validation. |
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550 | * |
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551 | * @param string $fieldname The name of the field to filter, if any. |
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552 | * |
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553 | * If you are adding a filter to a deeply nested field then separate the path with dots. |
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554 | * @param callable $callback The callback to filter the field. |
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555 | * @return $this |
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556 | */ |
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557 | 1 | public function addFilter($fieldname, callable $callback) { |
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561 | |||
562 | /** |
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563 | * Add a custom validator to to validate the schema. |
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564 | * |
||
565 | * @param string $fieldname The name of the field to validate, if any. |
||
566 | * |
||
567 | * If you are adding a validator to a deeply nested field then separate the path with dots. |
||
568 | * @param callable $callback The callback to validate with. |
||
569 | * @return Schema Returns `$this` for fluent calls. |
||
570 | */ |
||
571 | 2 | public function addValidator($fieldname, callable $callback) { |
|
575 | |||
576 | /** |
||
577 | * Require one of a given set of fields in the schema. |
||
578 | * |
||
579 | * @param array $required The field names to require. |
||
580 | * @param string $fieldname The name of the field to attach to. |
||
581 | * @param int $count The count of required items. |
||
582 | * @return Schema Returns `$this` for fluent calls. |
||
583 | */ |
||
584 | 1 | public function requireOneOf(array $required, $fieldname = '', $count = 1) { |
|
585 | 1 | $result = $this->addValidator( |
|
586 | 1 | $fieldname, |
|
587 | function ($data, ValidationField $field) use ($required, $count) { |
||
588 | 1 | $hasCount = 0; |
|
589 | 1 | $flattened = []; |
|
590 | |||
591 | 1 | foreach ($required as $name) { |
|
592 | 1 | $flattened = array_merge($flattened, (array)$name); |
|
593 | |||
594 | 1 | if (is_array($name)) { |
|
595 | // This is an array of required names. They all must match. |
||
596 | 1 | $hasCountInner = 0; |
|
597 | 1 | foreach ($name as $nameInner) { |
|
598 | 1 | if (isset($data[$nameInner]) && $data[$nameInner]) { |
|
599 | 1 | $hasCountInner++; |
|
600 | 1 | } else { |
|
601 | 1 | break; |
|
602 | } |
||
603 | 1 | } |
|
604 | 1 | if ($hasCountInner >= count($name)) { |
|
605 | 1 | $hasCount++; |
|
606 | 1 | } |
|
607 | 1 | } elseif (isset($data[$name]) && $data[$name]) { |
|
608 | 1 | $hasCount++; |
|
609 | 1 | } |
|
610 | |||
611 | 1 | if ($hasCount >= $count) { |
|
612 | 1 | return true; |
|
613 | } |
||
614 | 1 | } |
|
615 | |||
616 | 1 | if ($count === 1) { |
|
617 | 1 | $message = 'One of {required} are required.'; |
|
618 | 1 | } else { |
|
619 | $message = '{count} of {required} are required.'; |
||
620 | } |
||
621 | |||
622 | 1 | $field->addError('missingField', [ |
|
623 | 1 | 'messageCode' => $message, |
|
624 | 1 | 'required' => $required, |
|
625 | 'count' => $count |
||
626 | 1 | ]); |
|
627 | 1 | return false; |
|
628 | } |
||
629 | 1 | ); |
|
630 | |||
631 | 1 | return $result; |
|
632 | } |
||
633 | |||
634 | /** |
||
635 | * Validate data against the schema. |
||
636 | * |
||
637 | * @param mixed $data The data to validate. |
||
638 | * @param bool $sparse Whether or not this is a sparse validation. |
||
639 | * @return mixed Returns a cleaned version of the data. |
||
640 | * @throws ValidationException Throws an exception when the data does not validate against the schema. |
||
641 | */ |
||
642 | 166 | public function validate($data, $sparse = false) { |
|
643 | 166 | $field = new ValidationField($this->createValidation(), $this->schema, '', $sparse); |
|
644 | |||
645 | 166 | $clean = $this->validateField($data, $field, $sparse); |
|
646 | |||
647 | 164 | if (Invalid::isInvalid($clean) && $field->isValid()) { |
|
648 | // This really shouldn't happen, but we want to protect against seeing the invalid object. |
||
649 | $field->addError('invalid', ['messageCode' => '{field} is invalid.', 'status' => 422]); |
||
650 | } |
||
651 | |||
652 | 164 | if (!$field->getValidation()->isValid()) { |
|
653 | 57 | throw new ValidationException($field->getValidation()); |
|
654 | } |
||
655 | |||
656 | 120 | return $clean; |
|
657 | } |
||
658 | |||
659 | /** |
||
660 | * Validate data against the schema and return the result. |
||
661 | * |
||
662 | * @param mixed $data The data to validate. |
||
663 | * @param bool $sparse Whether or not to do a sparse validation. |
||
664 | * @return bool Returns true if the data is valid. False otherwise. |
||
665 | */ |
||
666 | 35 | public function isValid($data, $sparse = false) { |
|
674 | |||
675 | /** |
||
676 | * Validate a field. |
||
677 | * |
||
678 | * @param mixed $value The value to validate. |
||
679 | * @param ValidationField $field A validation object to add errors to. |
||
680 | * @param bool $sparse Whether or not this is a sparse validation. |
||
681 | * @return mixed|Invalid Returns a clean version of the value with all extra fields stripped out or invalid if the value |
||
682 | * is completely invalid. |
||
683 | */ |
||
684 | 166 | protected function validateField($value, ValidationField $field, $sparse = false) { |
|
685 | 166 | $result = $value = $this->filterField($value, $field); |
|
686 | |||
687 | 166 | if ($field->getField() instanceof Schema) { |
|
688 | try { |
||
689 | 3 | $result = $field->getField()->validate($value, $sparse); |
|
690 | 3 | } catch (ValidationException $ex) { |
|
691 | // The validation failed, so merge the validations together. |
||
692 | 1 | $field->getValidation()->merge($ex->getValidation(), $field->getName()); |
|
693 | } |
||
694 | 166 | } elseif (($value === null || ($value === '' && $field->getType() !== 'string')) && $field->val('allowNull', false)) { |
|
695 | 11 | $result = null; |
|
696 | 11 | } else { |
|
697 | // Validate the field's type. |
||
698 | 166 | $type = $field->getType(); |
|
699 | 166 | if (is_array($type)) { |
|
700 | 28 | $result = $this->validateMultipleTypes($value, $type, $field, $sparse); |
|
701 | 28 | } else { |
|
702 | 146 | $result = $this->validateSingleType($value, $type, $field, $sparse); |
|
703 | } |
||
704 | 166 | if (Invalid::isValid($result)) { |
|
705 | 164 | $result = $this->validateEnum($result, $field); |
|
706 | 164 | } |
|
707 | } |
||
708 | |||
709 | // Validate a custom field validator. |
||
710 | 166 | if (Invalid::isValid($result)) { |
|
711 | 164 | $this->callValidators($result, $field); |
|
712 | 164 | } |
|
713 | |||
714 | 166 | return $result; |
|
715 | } |
||
716 | |||
717 | /** |
||
718 | * Validate an array. |
||
719 | * |
||
720 | * @param mixed $value The value to validate. |
||
721 | * @param ValidationField $field The validation results to add. |
||
722 | * @param bool $sparse Whether or not this is a sparse validation. |
||
723 | * @return array|Invalid Returns an array or invalid if validation fails. |
||
724 | */ |
||
725 | 28 | protected function validateArray($value, ValidationField $field, $sparse = false) { |
|
726 | 28 | if ((!is_array($value) || (count($value) > 0 && !array_key_exists(0, $value))) && !$value instanceof \Traversable) { |
|
727 | 6 | $field->addTypeError('array'); |
|
728 | 6 | return Invalid::value(); |
|
729 | } else { |
||
730 | 23 | if ((null !== $minItems = $field->val('minItems')) && count($value) < $minItems) { |
|
731 | 1 | $field->addError( |
|
732 | 1 | 'minItems', |
|
733 | [ |
||
734 | 1 | 'messageCode' => '{field} must contain at least {minItems} {minItems,plural,item}.', |
|
735 | 1 | 'minItems' => $minItems, |
|
736 | 'status' => 422 |
||
737 | 1 | ] |
|
738 | 1 | ); |
|
739 | 1 | } |
|
740 | 23 | if ((null !== $maxItems = $field->val('maxItems')) && count($value) > $maxItems) { |
|
741 | 1 | $field->addError( |
|
742 | 1 | 'maxItems', |
|
743 | [ |
||
744 | 1 | 'messageCode' => '{field} must contain no more than {maxItems} {maxItems,plural,item}.', |
|
745 | 1 | 'maxItems' => $maxItems, |
|
746 | 'status' => 422 |
||
747 | 1 | ] |
|
748 | 1 | ); |
|
749 | 1 | } |
|
750 | |||
751 | 23 | if ($field->val('items') !== null) { |
|
752 | 18 | $result = []; |
|
753 | |||
754 | // Validate each of the types. |
||
755 | 18 | $itemValidation = new ValidationField( |
|
756 | 18 | $field->getValidation(), |
|
757 | 18 | $field->val('items'), |
|
758 | 18 | '', |
|
759 | $sparse |
||
760 | 18 | ); |
|
761 | |||
762 | 18 | $count = 0; |
|
763 | 18 | foreach ($value as $i => $item) { |
|
764 | 18 | $itemValidation->setName($field->getName()."[{$i}]"); |
|
765 | 18 | $validItem = $this->validateField($item, $itemValidation, $sparse); |
|
766 | 18 | if (Invalid::isValid($validItem)) { |
|
767 | 18 | $result[] = $validItem; |
|
768 | 18 | } |
|
769 | 18 | $count++; |
|
770 | 18 | } |
|
771 | |||
772 | 18 | return empty($result) && $count > 0 ? Invalid::value() : $result; |
|
773 | } else { |
||
774 | // Cast the items into a proper numeric array. |
||
775 | 5 | $result = is_array($value) ? array_values($value) : iterator_to_array($value); |
|
776 | 5 | return $result; |
|
777 | } |
||
778 | } |
||
779 | } |
||
780 | |||
781 | /** |
||
782 | * Validate a boolean value. |
||
783 | * |
||
784 | * @param mixed $value The value to validate. |
||
785 | * @param ValidationField $field The validation results to add. |
||
786 | * @return bool|Invalid Returns the cleaned value or invalid if validation fails. |
||
787 | */ |
||
788 | 29 | protected function validateBoolean($value, ValidationField $field) { |
|
797 | |||
798 | /** |
||
799 | * Validate a date time. |
||
800 | * |
||
801 | * @param mixed $value The value to validate. |
||
802 | * @param ValidationField $field The validation results to add. |
||
803 | * @return \DateTimeInterface|Invalid Returns the cleaned value or **null** if it isn't valid. |
||
804 | */ |
||
805 | 14 | protected function validateDatetime($value, ValidationField $field) { |
|
806 | 14 | if ($value instanceof \DateTimeInterface) { |
|
807 | // do nothing, we're good |
||
808 | 14 | } elseif (is_string($value) && $value !== '' && !is_numeric($value)) { |
|
809 | try { |
||
810 | 7 | $dt = new \DateTimeImmutable($value); |
|
811 | 6 | if ($dt) { |
|
812 | 6 | $value = $dt; |
|
813 | 6 | } else { |
|
814 | $value = null; |
||
815 | } |
||
816 | 7 | } catch (\Exception $ex) { |
|
817 | 1 | $value = Invalid::value(); |
|
818 | } |
||
819 | 11 | } elseif (is_int($value) && $value > 0) { |
|
820 | 1 | $value = new \DateTimeImmutable('@'.(string)round($value)); |
|
821 | 1 | } else { |
|
822 | 3 | $value = Invalid::value(); |
|
823 | } |
||
824 | |||
825 | 14 | if (Invalid::isInvalid($value)) { |
|
826 | 4 | $field->addTypeError('datetime'); |
|
827 | 4 | } |
|
828 | 14 | return $value; |
|
829 | } |
||
830 | |||
831 | /** |
||
832 | * Validate a float. |
||
833 | * |
||
834 | * @param mixed $value The value to validate. |
||
835 | * @param ValidationField $field The validation results to add. |
||
836 | * @return float|Invalid Returns a number or **null** if validation fails. |
||
837 | */ |
||
838 | 13 | protected function validateNumber($value, ValidationField $field) { |
|
846 | /** |
||
847 | * Validate and integer. |
||
848 | * |
||
849 | * @param mixed $value The value to validate. |
||
850 | * @param ValidationField $field The validation results to add. |
||
851 | * @return int|Invalid Returns the cleaned value or **null** if validation fails. |
||
852 | */ |
||
853 | 36 | protected function validateInteger($value, ValidationField $field) { |
|
862 | |||
863 | /** |
||
864 | * Validate an object. |
||
865 | * |
||
866 | * @param mixed $value The value to validate. |
||
867 | * @param ValidationField $field The validation results to add. |
||
868 | * @param bool $sparse Whether or not this is a sparse validation. |
||
869 | * @return object|Invalid Returns a clean object or **null** if validation fails. |
||
870 | */ |
||
871 | 94 | protected function validateObject($value, ValidationField $field, $sparse = false) { |
|
872 | 94 | if (!$this->isArray($value) || isset($value[0])) { |
|
873 | 6 | $field->addTypeError('object'); |
|
874 | 6 | return Invalid::value(); |
|
875 | 94 | } elseif (is_array($field->val('properties'))) { |
|
876 | // Validate the data against the internal schema. |
||
877 | 89 | $value = $this->validateProperties($value, $field, $sparse); |
|
883 | |||
884 | /** |
||
885 | * Validate data against the schema and return the result. |
||
886 | * |
||
887 | * @param array|\ArrayAccess $data The data to validate. |
||
888 | * @param ValidationField $field This argument will be filled with the validation result. |
||
889 | * @param bool $sparse Whether or not this is a sparse validation. |
||
890 | * @return array|Invalid Returns a clean array with only the appropriate properties and the data coerced to proper types. |
||
891 | * or invalid if there are no valid properties. |
||
892 | */ |
||
893 | 89 | protected function validateProperties($data, ValidationField $field, $sparse = false) { |
|
965 | |||
966 | /** |
||
967 | * Validate a string. |
||
968 | * |
||
969 | * @param mixed $value The value to validate. |
||
970 | * @param ValidationField $field The validation results to add. |
||
971 | * @return string|Invalid Returns the valid string or **null** if validation fails. |
||
972 | */ |
||
973 | 63 | protected function validateString($value, ValidationField $field) { |
|
1062 | |||
1063 | /** |
||
1064 | * Validate a unix timestamp. |
||
1065 | * |
||
1066 | * @param mixed $value The value to validate. |
||
1067 | * @param ValidationField $field The field being validated. |
||
1068 | * @return int|Invalid Returns a valid timestamp or invalid if the value doesn't validate. |
||
1069 | */ |
||
1070 | 8 | protected function validateTimestamp($value, ValidationField $field) { |
|
1081 | |||
1082 | /** |
||
1083 | * Validate a null value. |
||
1084 | * |
||
1085 | * @param mixed $value The value to validate. |
||
1086 | * @param ValidationField $field The error collector for the field. |
||
1087 | * @return null|Invalid Returns **null** or invalid. |
||
1088 | */ |
||
1089 | protected function validateNull($value, ValidationField $field) { |
||
1096 | |||
1097 | /** |
||
1098 | * Validate a value against an enum. |
||
1099 | * |
||
1100 | * @param mixed $value The value to test. |
||
1101 | * @param ValidationField $field The validation object for adding errors. |
||
1102 | * @return mixed|Invalid Returns the value if it is one of the enumerated values or invalid otherwise. |
||
1103 | */ |
||
1104 | 164 | protected function validateEnum($value, ValidationField $field) { |
|
1123 | |||
1124 | /** |
||
1125 | * Call all of the filters attached to a field. |
||
1126 | * |
||
1127 | * @param mixed $value The field value being filtered. |
||
1128 | * @param ValidationField $field The validation object. |
||
1129 | * @return mixed Returns the filtered value. If there are no filters for the field then the original value is returned. |
||
1130 | */ |
||
1131 | 166 | protected function callFilters($value, ValidationField $field) { |
|
1141 | |||
1142 | /** |
||
1143 | * Call all of the validators attached to a field. |
||
1144 | * |
||
1145 | * @param mixed $value The field value being validated. |
||
1146 | * @param ValidationField $field The validation object to add errors. |
||
1147 | */ |
||
1148 | 164 | protected function callValidators($value, ValidationField $field) { |
|
1168 | |||
1169 | /** |
||
1170 | * Specify data which should be serialized to JSON. |
||
1171 | * |
||
1172 | * This method specifically returns data compatible with the JSON schema format. |
||
1173 | * |
||
1174 | * @return mixed Returns data which can be serialized by **json_encode()**, which is a value of any type other than a resource. |
||
1175 | * @link http://php.net/manual/en/jsonserializable.jsonserialize.php |
||
1176 | * @link http://json-schema.org/ |
||
1177 | */ |
||
1178 | public function jsonSerialize() { |
||
1213 | |||
1214 | /** |
||
1215 | * Look up a type based on its alias. |
||
1216 | * |
||
1217 | * @param string $alias The type alias or type name to lookup. |
||
1218 | * @return mixed |
||
1219 | */ |
||
1220 | 156 | protected function getType($alias) { |
|
1231 | |||
1232 | /** |
||
1233 | * Get the class that's used to contain validation information. |
||
1234 | * |
||
1235 | * @return Validation|string Returns the validation class. |
||
1236 | */ |
||
1237 | 166 | public function getValidationClass() { |
|
1240 | |||
1241 | /** |
||
1242 | * Set the class that's used to contain validation information. |
||
1243 | * |
||
1244 | * @param Validation|string $class Either the name of a class or a class that will be cloned. |
||
1245 | * @return $this |
||
1246 | */ |
||
1247 | 1 | public function setValidationClass($class) { |
|
1255 | |||
1256 | /** |
||
1257 | * Create a new validation instance. |
||
1258 | * |
||
1259 | * @return Validation Returns a validation object. |
||
1260 | */ |
||
1261 | 166 | protected function createValidation() { |
|
1271 | |||
1272 | /** |
||
1273 | * Check whether or not a value is an array or accessible like an array. |
||
1274 | * |
||
1275 | * @param mixed $value The value to check. |
||
1276 | * @return bool Returns **true** if the value can be used like an array or **false** otherwise. |
||
1277 | */ |
||
1278 | 94 | private function isArray($value) { |
|
1281 | |||
1282 | /** |
||
1283 | * Cast a value to an array. |
||
1284 | * |
||
1285 | * @param \Traversable $value The value to convert. |
||
1286 | * @return array Returns an array. |
||
1287 | */ |
||
1288 | 3 | private function toObjectArray(\Traversable $value) { |
|
1301 | |||
1302 | /** |
||
1303 | * Return a sparse version of this schema. |
||
1304 | * |
||
1305 | * A sparse schema has no required properties. |
||
1306 | * |
||
1307 | * @return Schema Returns a new sparse schema. |
||
1308 | */ |
||
1309 | 2 | public function withSparse() { |
|
1313 | |||
1314 | /** |
||
1315 | * The internal implementation of `Schema::withSparse()`. |
||
1316 | * |
||
1317 | * @param array|Schema $schema The schema to make sparse. |
||
1318 | * @param \SplObjectStorage $schemas Collected sparse schemas that have already been made. |
||
1319 | * @return mixed |
||
1320 | */ |
||
1321 | 2 | private function withSparseInternal($schema, \SplObjectStorage $schemas) { |
|
1349 | |||
1350 | /** |
||
1351 | * Filter a field's value using built in and custom filters. |
||
1352 | * |
||
1353 | * @param mixed $value The original value of the field. |
||
1354 | * @param ValidationField $field The field information for the field. |
||
1355 | * @return mixed Returns the filtered field or the original field value if there are no filters. |
||
1356 | */ |
||
1357 | 166 | private function filterField($value, ValidationField $field) { |
|
1386 | |||
1387 | /** |
||
1388 | * Whether a offset exists. |
||
1389 | * |
||
1390 | * @param mixed $offset An offset to check for. |
||
1391 | * @return boolean true on success or false on failure. |
||
1392 | * @link http://php.net/manual/en/arrayaccess.offsetexists.php |
||
1393 | */ |
||
1394 | 3 | public function offsetExists($offset) { |
|
1397 | |||
1398 | /** |
||
1399 | * Offset to retrieve. |
||
1400 | * |
||
1401 | * @param mixed $offset The offset to retrieve. |
||
1402 | * @return mixed Can return all value types. |
||
1403 | * @link http://php.net/manual/en/arrayaccess.offsetget.php |
||
1404 | */ |
||
1405 | public function offsetGet($offset) { |
||
1408 | |||
1409 | /** |
||
1410 | * Offset to set. |
||
1411 | * |
||
1412 | * @param mixed $offset The offset to assign the value to. |
||
1413 | * @param mixed $value The value to set. |
||
1414 | * @link http://php.net/manual/en/arrayaccess.offsetset.php |
||
1415 | */ |
||
1416 | public function offsetSet($offset, $value) { |
||
1419 | |||
1420 | /** |
||
1421 | * Offset to unset. |
||
1422 | * |
||
1423 | * @param mixed $offset The offset to unset. |
||
1424 | * @link http://php.net/manual/en/arrayaccess.offsetunset.php |
||
1425 | */ |
||
1426 | public function offsetUnset($offset) { |
||
1429 | |||
1430 | /** |
||
1431 | * Validate a field against a single type. |
||
1432 | * |
||
1433 | * @param mixed $value The value to validate. |
||
1434 | * @param string $type The type to validate against. |
||
1435 | * @param ValidationField $field Contains field and validation information. |
||
1436 | * @param bool $sparse Whether or not this should be a sparse validation. |
||
1437 | * @return mixed Returns the valid value or `Invalid`. |
||
1438 | */ |
||
1439 | 166 | protected function validateSingleType($value, $type, ValidationField $field, $sparse) { |
|
1474 | |||
1475 | /** |
||
1476 | * Validate a field against multiple basic types. |
||
1477 | * |
||
1478 | * The first validation that passes will be returned. If no type can be validated against then validation will fail. |
||
1479 | * |
||
1480 | * @param mixed $value The value to validate. |
||
1481 | * @param string[] $types The types to validate against. |
||
1482 | * @param ValidationField $field Contains field and validation information. |
||
1483 | * @param bool $sparse Whether or not this should be a sparse validation. |
||
1484 | * @return mixed Returns the valid value or `Invalid`. |
||
1485 | */ |
||
1486 | 28 | private function validateMultipleTypes($value, array $types, ValidationField $field, $sparse) { |
|
1549 | } |
||
1550 |
This check looks for multiple assignments in successive lines of code. It will report an issue if the operators are not in a straight line.
To visualize
will produce issues in the first and second line, while this second example
will produce no issues.