Code Duplication    Length = 3-3 lines in 2 locations

Data/FilterClause.php 2 locations

@@ 104-106 (lines=3) @@
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        switch($this->op)
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        {
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            case 'substringof':
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            case 'contains':
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                return $this->var1.' LIKE \'%'.trim($this->var2, "'").'%\'';
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                break;
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            default:
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                return $this->var1.$this->op.$this->var2;
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                break;
@@ 119-121 (lines=3) @@
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        switch($this->op)
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        {
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            case 'substringof':
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            case 'contains':
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                $str .= $this->var1.'=*'.trim($this->var2, "'").'*';
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                break;
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            case '!=':
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                $str .= '!('.$this->var1.'='.$this->var2.')';
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                break;