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<?php |
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namespace BfwSql\Queries\Parts; |
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class Column |
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{ |
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/** |
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* @var \BfwSql\Queries\Parts\Table $table The table where is the column |
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*/ |
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protected $table; |
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/** |
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* @var string $name The column name |
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*/ |
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protected $name; |
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/** |
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* @var string|null $shortcut The column shortcut |
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*/ |
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protected $shortcut; |
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/** |
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* @var mixed $value The column shortcut |
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*/ |
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protected $value; |
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/** |
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* Construct |
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* |
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* @param \BfwSql\Queries\Parts\Table $table The table where is the column |
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* @param string $name The column name |
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* @param string $shortcut The column shortcut |
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* @param mixed $value The column value |
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*/ |
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public function __construct( |
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Table $table, |
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string $name, |
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string $shortcut = null, |
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$value = null |
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) { |
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$this->table = $table; |
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$this->name = $name; |
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$this->shortcut = $shortcut; |
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$this->value = $value; |
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} |
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/** |
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* Getter accessor to property table |
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* |
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* @return \BfwSql\Queries\Parts\Table |
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*/ |
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public function getTable(): Table |
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{ |
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return $this->table; |
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} |
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/** |
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* Getter accessor to property name |
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* |
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* @return string |
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*/ |
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public function getName(): string |
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{ |
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return $this->name; |
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} |
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/** |
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* Getter accessor to property shortcut |
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* |
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* @return string|null |
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*/ |
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public function getShortcut() |
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{ |
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return $this->shortcut; |
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} |
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/** |
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* Getter accessor to property value |
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* |
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* @return mixed |
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*/ |
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public function getValue() |
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{ |
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return $this->value; |
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} |
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/** |
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* Generate the sql query for to this column |
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* |
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* @return string |
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*/ |
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public function generate(): string |
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{ |
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$partQuery = $this->obtainName(); |
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if ($this->shortcut !== null) { |
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$partQuery .= ' AS `'.$this->shortcut.'`'; |
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} |
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return $partQuery; |
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} |
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/** |
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* Obtain the column name to use into the sql query |
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* Use shortcut if defined |
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* Use backtick if needed (not a function or a keyword) |
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* Add the table name before the column name |
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* |
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* @return string |
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*/ |
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public function obtainName(): string |
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{ |
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$columnName = $this->name; |
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$tableName = $this->table->getName(); |
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if ($this->table->getShortcut() !== null) { |
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$tableName = $this->table->getShortcut(); |
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} |
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$isFunction = false; |
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if ( |
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strpos($columnName, ' ') !== false || |
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strpos($columnName, '(') !== false |
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) { |
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$isFunction = true; |
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} |
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$isJoker = ($columnName === '*') ? true : false; |
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return $this->table |
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->getQuerySystem() |
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->getQuerySgbd() |
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->columnName($columnName, $tableName, $isFunction, $isJoker) |
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; |
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} |
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/** |
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* Obtain the value to use into sql query |
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* Return the string null if the column have the value null in php |
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* Use quoting system declared into the used query system |
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* |
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* @return string |
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*/ |
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public function obtainValue() |
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{ |
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if ($this->value === null) { |
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return 'null'; |
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} |
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return $this->table |
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->getQuerySystem() |
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->getQuoting() |
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->quoteValue($this->name, $this->value) |
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; |
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} |
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} |
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bulton-fr /
bfw-sql
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