Public Member Functions
	ilQueryParser ($a_query_str)
	Constructor public.
	setMessage ($a_msg)
	getMessage ()
	appendMessage ($a_msg)
	setCombination ($a_combination)
	getCombination ()
	getQueryString ()
	getWords ()
	getQuotedWords ($with_quotation=false)
	getLuceneQueryString ()
	parse ()
	__parseQuotation ()
	validate ()
Data Fields
	$lng = null
	$query_str
	$quoted_words = array()
	$message
	$combination

Detailed Description

Definition at line 35 of file class.ilQueryParser.php.

Member Function Documentation

ilQueryParser::__parseQuotation ( )

Definition at line 155 of file class.ilQueryParser.php.

References $query_str, getQueryString(), and ilUtil::prepareDBString().

Referenced by parse().

        {
                if(!strlen($this->getQueryString()))
                {
                        return false;
                }
                $query_str = $this->getQueryString();
                while(preg_match("/\".*?\"/",$query_str,$matches))
                {
                        $query_str = str_replace($matches[0],'',$query_str);
                        $this->quoted_words[] = ilUtil::prepareDBString($matches[0]);
                }

                // Parse the rest
                $words = explode(' ',trim($query_str));
                foreach($words as $word)
                {
                        if(!strlen(trim($word)))
                        {
                                continue;
                        }
                        $this->quoted_words[] = ilUtil::prepareDBString($word);
                }
        }

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ilQueryParser::appendMessage ( $ a_msg )

Definition at line 68 of file class.ilQueryParser.php.

References getMessage().

        {
                if(strlen($this->getMessage()))
                {
                        $this->message .= '<br />';
                }
                $this->message .= $a_msg;
        }

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ilQueryParser::getCombination ( )

Definition at line 81 of file class.ilQueryParser.php.

Referenced by getLuceneQueryString().

        {
                return $this->combination;
        }

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ilQueryParser::getLuceneQueryString ( )

Definition at line 111 of file class.ilQueryParser.php.

References $counter, getCombination(), and getQuotedWords().

        {
                $counter = 0;
                $tmp_str = "";
                foreach($this->getQuotedWords(true) as $word) {
                        if($counter++)
                        {
                                $tmp_str .= (" ".strtoupper($this->getCombination())." ");
                        }
                        $tmp_str .= $word;
                }
                return $tmp_str;
        }

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ilQueryParser::getMessage ( )

Definition at line 64 of file class.ilQueryParser.php.

Referenced by appendMessage(), and validate().

        {
                return $this->message;
        }

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ilQueryParser::getQueryString ( )

Definition at line 86 of file class.ilQueryParser.php.

Referenced by __parseQuotation(), and parse().

        {
                return trim($this->query_str);
        }

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ilQueryParser::getQuotedWords ( $ with_quotation = false )

Definition at line 95 of file class.ilQueryParser.php.

Referenced by getLuceneQueryString().

        {
                if($with_quotation)
                {
                        return $this->quoted_words ? $this->quoted_words : array();
                }
                else
                {
                        foreach($this->quoted_words as $word)
                        {
                                $tmp_word[] = str_replace('\"','',$word);
                        }
                        return $tmp_word ? $tmp_word : array();
                }
        }

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ilQueryParser::getWords ( )

Definition at line 90 of file class.ilQueryParser.php.

Referenced by validate().

        {
                return $this->words ? $this->words : array();
        }

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ilQueryParser::ilQueryParser ( $ a_query_str )

Constructor public.

Definition at line 49 of file class.ilQueryParser.php.

References $lng.

        {
                global $lng;

                $this->lng =& $lng;

                $this->query_str = $a_query_str;
                $this->message = '';
        }

ilQueryParser::parse ( )

Definition at line 124 of file class.ilQueryParser.php.

References __parseQuotation(), getQueryString(), ilUtil::prepareDBString(), and setMessage().

        {
                $this->words = array();

                if(!strlen($this->getQueryString()))
                {
                        return false;
                }

                $words = explode(' ',trim($this->getQueryString()));
                foreach($words as $word)
                {
                        if(!strlen(trim($word)))
                        {
                                continue;
                        }
                        if(strlen(trim($word)) < 3)
                        {
                                $this->setMessage($this->lng->txt('search_minimum_three'));
                                continue;
                        }
                        $this->words[] = ilUtil::prepareDBString($word);
                }

                // Parse strings like && 'A "B C D" E' as 'A' && 'B C D' && 'E'
                // Can be used in LIKE search or fulltext search > MYSQL 4.0
                $this->__parseQuotation();

                return true;
        }

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ilQueryParser::setCombination ( $ a_combination )

Definition at line 77 of file class.ilQueryParser.php.

        {
                $this->combination = $a_combination;
        }

ilQueryParser::setMessage ( $ a_msg )

Definition at line 60 of file class.ilQueryParser.php.

Referenced by parse(), and validate().

        {
                $this->message = $a_msg;
        }

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ilQueryParser::validate ( )

Definition at line 180 of file class.ilQueryParser.php.

References getMessage(), getWords(), and setMessage().

        {
                // Words with less than 3 characters
                if(strlen($this->getMessage()))
                {
                        return false;
                }
                // No search string given
                if(!count($this->getWords()))
                {
                        $this->setMessage($this->lng->txt('msg_no_search_string'));
                        return false;
                }

                return true;
        }