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<?php |
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namespace LaravelFreelancerNL\Aranguent\Schema\Concerns; |
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use Illuminate\Support\Fluent; |
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trait Tables |
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{ |
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/** |
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* Indicate that the table needs to be created. |
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* |
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* @param array $options |
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* @return Fluent |
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*/ |
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public function create($options = []) |
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{ |
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$parameters['options'] = $options; |
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$parameters['explanation'] = "Create '{$this->table}' table."; |
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$parameters['handler'] = 'table'; |
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return $this->addCommand('create', $parameters); |
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} |
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/** |
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* Determine if the blueprint has a create command. |
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* |
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* @return bool |
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*/ |
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protected function creating() |
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{ |
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return collect($this->commands)->contains(function ($command) { |
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return $command->name === 'create'; |
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}); |
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} |
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public function executeCreateCommand($command) |
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{ |
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if ($this->connection->pretending()) { |
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$this->connection->logQuery('/* '.$command->explanation." */\n", []); |
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return; |
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} |
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$options = $command->options; |
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if ($this->temporary === true) { |
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$options['isVolatile'] = true; |
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} |
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if ($this->autoIncrement === true) { |
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$options['keyOptions']['autoincrement'] = true; |
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} |
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$collections = $this->collectionHandler->getAllCollections(['excludeSystem' => true]); |
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if (! isset($collections[$this->table])) { |
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$this->collectionHandler->create($this->table, $options); |
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} |
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} |
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/** |
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* Alias for getCollection. |
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* |
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* @return string |
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*/ |
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public function getTable() |
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{ |
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return $this->table; |
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} |
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/** |
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* Rename the table to a given name. |
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* |
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* @param string $to |
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* @return Fluent |
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*/ |
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public function rename($to) |
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{ |
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return $this->addCommand('rename', compact('to')); |
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} |
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/** |
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* Indicate that the table should be dropped. |
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* |
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* @return Fluent |
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*/ |
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public function drop() |
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{ |
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$parameters['explanation'] = "Drop the '{$this->table}' table."; |
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$parameters['handler'] = 'table'; |
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return $this->addCommand('drop', $parameters); |
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} |
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/** |
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* Indicate that the table should be dropped if it exists. |
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* |
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* @return Fluent |
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*/ |
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public function dropIfExists() |
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{ |
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$parameters['explanation'] = "Drop the '{$this->table}' table."; |
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$parameters['handler'] = 'table'; |
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return $this->addCommand('dropIfExists'); |
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} |
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} |
Adding an explicit array definition is generally preferable to implicit array definition as it guarantees a stable state of the code.
Let’s take a look at an example:
As you can see in this example, the array
$myArray
is initialized the first time when the foreach loop is entered. You can also see that the value of thebar
key is only written conditionally; thus, its value might result from a previous iteration.This might or might not be intended. To make your intention clear, your code more readible and to avoid accidental bugs, we recommend to add an explicit initialization $myArray = array() either outside or inside the foreach loop.