Duplicate code is one of the most pungent code smells. A rule that is often used is to re-structure code once it is duplicated in three or more places.
Common duplication problems, and corresponding solutions are:
1 | <?php |
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12 | class ActiveRecordModel |
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13 | { |
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14 | /** |
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15 | * @var DatabaseQueryBuilder $db the object for persistent |
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16 | * storage. |
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17 | */ |
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18 | protected $db = null; |
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19 | |||
20 | /** |
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21 | * @var string $tableName name of the database table. |
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22 | */ |
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23 | protected $tableName = null; |
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24 | |||
25 | |||
26 | |||
27 | /** |
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28 | * Set the database object to use for accessing storage. |
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29 | * |
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30 | * @param DatabaseQueryBuilder $db as database access object. |
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31 | * |
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32 | * @return void |
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33 | */ |
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34 | 3 | public function setDb(DatabaseQueryBuilder $db) |
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38 | |||
39 | |||
40 | |||
41 | /** |
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42 | * Check if database is injected or throw an exception. |
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43 | * |
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44 | * @throws ActiveRecordException when database is not set. |
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45 | * |
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46 | * @return void |
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47 | */ |
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48 | 4 | protected function checkDb() |
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54 | |||
55 | |||
56 | |||
57 | /** |
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58 | * Get essential object properties. |
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59 | * |
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60 | * @return array with object properties. |
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61 | */ |
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62 | 3 | protected function getProperties() |
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70 | |||
71 | |||
72 | |||
73 | /** |
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74 | * Find and return first object found by search criteria and use |
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75 | * its data to populate this instance. |
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76 | * |
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77 | * @param string $column to use in where statement. |
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78 | * @param mixed $value to use in where statement. |
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79 | * |
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80 | * @return this |
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81 | */ |
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82 | 1 | public function find($column, $value) |
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92 | |||
93 | |||
94 | |||
95 | /** |
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96 | * Find and return all. |
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97 | * |
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98 | * @return array of object of this class |
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99 | */ |
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100 | 1 | public function findAll() |
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109 | |||
110 | |||
111 | |||
112 | /** |
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113 | * Find and return all matching a search criteria of |
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114 | * for example `id = ?` or `id IN [?, ?]`. |
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115 | * |
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116 | * @param string $where to use in where statement. |
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117 | * @param mixed $value to use in where statement. |
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118 | * |
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119 | * @return array of object of this class |
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120 | */ |
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121 | 1 | public function findAllWhere($where, $value) |
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132 | |||
133 | |||
134 | |||
135 | /** |
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136 | * Save current object/row, insert if id is missing and do an |
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137 | * update if the id exists. |
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138 | * |
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139 | * @return void |
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140 | */ |
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141 | 4 | public function save() |
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149 | |||
150 | |||
151 | |||
152 | /** |
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153 | * Create new row. |
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154 | * |
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155 | * @return void |
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156 | */ |
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157 | 4 | View Code Duplication | protected function create() |
171 | |||
172 | |||
173 | |||
174 | /** |
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175 | * Update row. |
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176 | * |
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177 | * @return void |
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178 | */ |
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179 | View Code Duplication | protected function update() |
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193 | |||
194 | |||
195 | |||
196 | /** |
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197 | * Delete row. |
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198 | * |
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199 | * @param integer $id to delete or use $this->id as default. |
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200 | * |
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201 | * @return void |
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202 | */ |
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203 | public function delete($id = null) |
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215 | } |
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216 |
It seems like the type of the argument is not accepted by the function/method which you are calling.
In some cases, in particular if PHP’s automatic type-juggling kicks in this might be fine. In other cases, however this might be a bug.
We suggest to add an explicit type cast like in the following example: