1 | <?php |
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19 | trait Transactionable |
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20 | { |
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21 | /** |
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22 | * Create a new entity with the given attributes. |
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23 | * |
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24 | * @param array $attributes |
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25 | * |
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26 | * @throws \Exception |
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27 | * |
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28 | * @return array |
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29 | */ |
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30 | public function create(array $attributes = []) |
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46 | |||
47 | /** |
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48 | * Update an entity with the given attributes. |
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49 | * |
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50 | * @param mixed $id |
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51 | * @param array $attributes |
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52 | * |
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53 | * @throws \Exception |
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54 | * |
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55 | * @return array |
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56 | */ |
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57 | public function update($id, array $attributes = []) |
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73 | |||
74 | /** |
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75 | * Delete an entity with the given id. |
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76 | * |
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77 | * @param mixed $id |
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78 | * |
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79 | * @throws \Exception |
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80 | * |
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81 | * @return array |
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82 | */ |
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83 | public function delete($id) |
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84 | { |
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85 | // Start transaction! |
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86 | $this->beginTransaction(); |
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87 | try { |
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88 | $result = parent::delete($id); |
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89 | } catch (\Exception $e) { |
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90 | // Rollback if something went wrong |
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91 | $this->rollback(); |
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92 | throw $e; |
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93 | } |
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94 | // Commit the queries! |
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95 | $this->commit(); |
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96 | |||
97 | return $result; |
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98 | } |
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99 | |||
100 | /** |
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101 | * Start a new database transaction. |
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102 | * |
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103 | * @throws \Exception |
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104 | * |
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105 | * @return void |
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106 | */ |
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107 | public function beginTransaction() |
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108 | { |
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109 | $this->getContainer('db')->beginTransaction(); |
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110 | } |
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111 | |||
112 | /** |
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113 | * Commit the active database transaction. |
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114 | * |
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115 | * @return void |
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116 | */ |
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117 | public function commit() |
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118 | { |
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119 | $this->getContainer('db')->commit(); |
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120 | } |
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121 | |||
122 | /** |
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123 | * Rollback the active database transaction. |
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124 | * |
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125 | * @return void |
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126 | */ |
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127 | public function rollBack() |
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131 | } |
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132 |
This check looks for methods that are used by a trait but not required by it.
To illustrate, let’s look at the following code example
The trait
Idable
provides a methodequalsId
that in turn relies on the methodgetId()
. If this method does not exist on a class mixing in this trait, the method will fail.Adding the
getId()
as an abstract method to the trait will make sure it is available.