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<?php |
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namespace HnrAzevedo\Datamanager; |
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use Exception; |
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abstract class Datamanager |
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{ |
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use DataTrait, SynchronizeTrait; |
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protected ?string $table = null; |
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protected ?string $primary = null; |
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protected array $data = []; |
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protected array $where = [''=> ["1",'=',"1"] ]; |
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public function __set(string $prop,$value) |
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{ |
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if(is_array($value)){ |
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$attr = array_keys($value)[0]; |
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$this->data[$prop][$attr] = $value[$attr]; |
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return $this; |
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} |
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$this->isSettable($prop); |
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$this->data[$prop]['changed'] = true; |
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$this->data[$prop]['value'] = $value; |
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return $this; |
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} |
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public function getData(): ?array |
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{ |
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return $this->data; |
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} |
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public function __get(string $field) |
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{ |
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$this->isSettable($field); |
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return $this->data[$field]['value']; |
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} |
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public function getCount(): int |
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{ |
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return $this->count; |
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} |
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public function except($deniable) |
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{ |
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$deniable = (is_array($deniable)) ? $deniable : [$deniable]; |
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foreach ($deniable as $field) { |
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if(!array_key_exists($field,$this->data)){ |
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throw new Exception("{$field} field does not exist in the table {$this->table}."); |
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} |
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$this->excepts[$field] = true; |
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} |
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return $this; |
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} |
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public function deny() |
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{ |
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foreach ($this->excepts as $field => $value) { |
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unset($this->select[$field]); |
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} |
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return $this; |
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} |
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public function orderBy(string $field, string $ord = 'ASC') |
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{ |
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$this->isSettable( str_replace(['asc','ASC','desc','DESC',' '],'',$field) ); |
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$ord = (strpos(strtolower($field),'asc') || strpos(strtolower($field),'desc')) ? '' : $ord; |
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$this->order = " ORDER BY {$field} {$ord} "; |
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return $this; |
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} |
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public function only($params) |
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{ |
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$params = (is_array($params)) ? $params : [$params]; |
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$this->select = []; |
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foreach ($params as $field) { |
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$this->isSettable($field); |
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$this->select[$field] = true; |
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} |
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$this->select[$this->primary] = true; |
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return $this; |
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} |
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public function where(array $where) |
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{ |
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$this->where['AND'] = (array_key_exists('AND',$this->where)) ?? ''; |
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$w = []; |
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foreach ($where as $condition => $values) { |
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if(!is_array($values)){ |
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$w['AND'][] = $values; |
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continue; |
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} |
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$this->check_where_array($values); |
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$w[(is_int($condition) ? 'AND' : $condition)][] = $values; |
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} |
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$this->where = array_merge($this->where,$w); |
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return $this; |
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} |
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public function limit(string $limit) |
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{ |
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$this->limit = $limit; |
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return $this; |
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} |
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public function offset(int $offset) |
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{ |
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$this->checkLimit(); |
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$this->offset = $offset; |
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return $this; |
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} |
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public function result(): array |
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{ |
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return $this->result; |
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} |
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public function first() |
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{ |
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return (count($this->result) > 0) ? $this->setByDatabase($this->result[0]) : $this; |
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} |
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public function setByDatabase(array $arrayValues) |
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{ |
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$clone = clone $this; |
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$clone->result = [ |
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0 => $this->result[0] |
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]; |
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$clone->count = 1; |
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foreach ($arrayValues as $key => $value) { |
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$this->isSettable($key); |
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$clone->data[$key]['value'] = $value; |
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} |
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return $clone; |
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} |
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public function toJson(): string |
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{ |
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$string = ''; |
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foreach ($this->data as $key => $value) { |
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if(gettype($value)==='object'){ |
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$value = $value->getData()[$this->primary]['value']; |
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} |
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$string .= '"'.$key.'"'.':"'.$value.'",'; |
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} |
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return str_replace(',}', '}', '{'.$string.'}'); |
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} |
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public function remove(?bool $exec = false) |
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{ |
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if(!$exec){ |
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$this->clause = 'remove'; |
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return $this; |
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} |
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$this->clause = null; |
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if(count($this->where) == 1){ |
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$this->removeById(); |
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return $this; |
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} |
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$this->delete($this->mountRemove()['where'], substr( $this->mountRemove()['data'] ,0,-1) ); |
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$this->check_fail(); |
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return $this; |
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} |
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private function removeById(): bool |
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{ |
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$delete = $this->delete("{$this->primary}=:{$this->primary}","{$this->primary}={$this->getData()[$this->primary]['value']}"); |
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$this->check_fail(); |
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return $delete; |
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} |
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public function persist() |
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{ |
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$columns = ''; |
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$values = ''; |
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$data = []; |
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foreach ($this->data as $key => $value) { |
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if(strstr($this->data[$key]['extra'],'auto_increment')){ |
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continue; |
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} |
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$this->checkMaxlength($key, $value['value'], $value['maxlength']); |
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$columns .= $key.','; |
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$values .= ':'.$key.','; |
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$data[$key] = $value['value']; |
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} |
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$this->transaction('begin'); |
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try{ |
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$id = $this->insert($data); |
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$this->check_fail(); |
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$this->getData()[$this->primary]['value'] = $id; |
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$this->transaction('commit'); |
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}catch(Exception $er){ |
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$this->transaction('rollback'); |
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throw $er; |
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} |
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return $this; |
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} |
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public function toEntity() |
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{ |
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if($this->getCount() === 0){ |
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return null; |
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} |
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$entity = $this->setByDatabase($this->result[0]); |
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if(count($this->result) > 1){ |
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$entity = []; |
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foreach ($this->result as $key => $value) { |
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$entity[] = $this->setByDatabase($value); |
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} |
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} |
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return $entity; |
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} |
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public function findById($id) |
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{ |
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return $this->where([$this->primary,'=',$id]); |
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} |
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public function execute() |
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{ |
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if(!is_null($this->clause) && $this->clause == 'remove'){ |
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return $this->remove(true); |
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} |
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$this->deny(); |
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$this->mountSelect(); |
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$where = substr($this->mountWhereExec()['where'],0,-1); |
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$this->query .= " WHERE {$where} "; |
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$this->query .= $this->order; |
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$this->mountLimit(); |
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$this->mountOffset(); |
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$this->result = $this->select($this->query, $this->mountWhereExec()['data']); |
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$this->check_fail(); |
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$this->count = count($this->result); |
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$this->query = null; |
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return $this; |
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} |
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public function find(?int $key = null) |
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{ |
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$this->query = " SELECT * FROM {$this->table} "; |
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return (is_int($key)) ? $this->findById($key) : $this; |
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} |
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public function save() |
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{ |
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$this->transaction('begin'); |
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try{ |
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$this->update( |
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$this->mountSave()['data'], |
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"{$this->primary}=:{$this->primary}", |
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$this->primary.'='.$this->getData()[$this->primary]['value'] |
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); |
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$this->check_fail(); |
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$this->transaction('commit'); |
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}catch(Exception $er){ |
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$this->transaction('rollback'); |
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throw $er; |
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} |
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return $this; |
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} |
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} |
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If an expression can have both
false
, andnull
as possible values. It is generally a good practice to always use strict comparison to clearly distinguish between those two values.