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89 lines
2.3 KiB
89 lines
2.3 KiB
12 years ago
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<?php
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namespace yii\db\oci;
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class ColumnSchema extends \yii\db\ColumnSchema
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{
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/**
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* Initializes the column with its DB type and default value.
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* This sets up the column's PHP type, size, precision, scale as well as default value.
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* @param string $dbType the column's DB type
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* @param mixed $defaultValue the default value
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*/
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public function extract($dbType, $defaultValue)
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{
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$this->dbType=$dbType;
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$this->extractType($dbType);
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$this->extractLimit($dbType);
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if($defaultValue!==null)
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$this->extractDefault($defaultValue);
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}
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/**
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* Extracts the PHP type from DB type.
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* @param string $dbType DB type
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* @return string
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*/
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protected function extractOraType($dbType){
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if(strpos($dbType,'FLOAT')!==false) return 'double';
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if (strpos($dbType,'NUMBER')!==false || strpos($dbType,'INTEGER')!==false)
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{
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if(strpos($dbType,'(') && preg_match('/\((.*)\)/',$dbType,$matches))
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{
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$values=explode(',',$matches[1]);
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if(isset($values[1]) and (((int)$values[1]) > 0))
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return 'double';
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else
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return 'integer';
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}
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else
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return 'double';
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}
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else
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return 'string';
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}
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/**
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* Extracts the PHP type from DB type.
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* @param string $dbType DB type
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*/
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protected function extractType($dbType)
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{
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$this->type=$this->extractOraType($dbType);
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}
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/**
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* Extracts size, precision and scale information from column's DB type.
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* @param string $dbType the column's DB type
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*/
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protected function extractLimit($dbType)
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{
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if(strpos($dbType,'(') && preg_match('/\((.*)\)/',$dbType,$matches))
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{
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$values=explode(',',$matches[1]);
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$this->size=$this->precision=(int)$values[0];
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if(isset($values[1]))
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$this->scale=(int)$values[1];
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}
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}
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/**
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* Extracts the default value for the column.
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* The value is typecasted to correct PHP type.
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* @param mixed $defaultValue the default value obtained from metadata
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*/
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protected function extractDefault($defaultValue)
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{
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if(stripos($defaultValue,'timestamp')!==false) {
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$this->defaultValue=null;
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}
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else {
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$this->defaultValue=$this->typecast($defaultValue);
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}
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}
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}
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