Collaboration diagram for ilQueryParser:

Public Member Functions
	__construct ($a_query_str)
	Constructor @access public. More...

	setMinWordLength ($a_length, $a_force=false)

	getMinWordLength ()

	setGlobalMinLength ($a_value)

	getGlobalMinLength ()

	setAllowedWildcards ($a_value)

	getAllowedWildcards ()

	setMessage ($a_msg)

	getMessage ()

	appendMessage ($a_msg)

	setCombination ($a_combination)

	getCombination ()

	getQueryString ()

	getWords ()

	getQuotedWords ($with_quotation=false)

	getLuceneQueryString ()

	parse ()

	__parseQuotation ()

	validate ()

Data Fields
const	MIN_WORD_LENGTH = 3
	Minimum of characters required for search. More...

	$lng = null

	$min_word_length = 0

	$global_min_length = null

	$query_str

	$quoted_words = array()

	$message

	$combination

Protected Attributes
	$settings = null

	$wildcards_allowed

Detailed Description

Definition at line 38 of file class.ilQueryParser.php.

Constructor & Destructor Documentation

◆ __construct()

ilQueryParser::__construct ( $a_query_str )

Constructor @access public.

Definition at line 61 of file class.ilQueryParser.php.

    {
        global $DIC;
 
        $lng = $DIC['lng'];
 
        define('MIN_WORD_LENGTH', self::MIN_WORD_LENGTH);
 
        $this->lng = $lng;
 
        $this->query_str = $a_query_str;
        $this->message = '';
 
        include_once './Services/Search/classes/class.ilSearchSettings.php';
        $this->settings = ilSearchSettings::getInstance();
 
        if (!$this->setMinWordLength(1)) {
            $this->setMinWordLength(MIN_WORD_LENGTH);
        }
        
        $this->setAllowedWildcards(false);
    }

References $DIC, $lng, ilSearchSettings\getInstance(), MIN_WORD_LENGTH, setAllowedWildcards(), setMinWordLength(), and settings().

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Member Function Documentation

◆ __parseQuotation()

ilQueryParser::__parseQuotation ( )

Definition at line 231 of file class.ilQueryParser.php.

    {
        if (!strlen($this->getQueryString())) {
            $this->quoted_words[] = '';
            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);
        }
                        
        if (!$this->getAllowedWildcards()) {
            // #14768
            foreach ($this->quoted_words as $idx => $word) {
                if (!stristr($word, '\\')) {
                    $word = str_replace('%', '\%', $word);
                    $word = str_replace('_', '\_', $word);
                }
                $this->quoted_words[$idx] = $word;
            }
        }
    }

References $query_str, getAllowedWildcards(), getQueryString(), and ilUtil\prepareDBString().

Referenced by parse().

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◆ appendMessage()

ilQueryParser::appendMessage ( $a_msg )

Definition at line 135 of file class.ilQueryParser.php.

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

References getMessage().

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◆ getAllowedWildcards()

ilQueryParser::getAllowedWildcards ( )

Definition at line 122 of file class.ilQueryParser.php.

    {
        return $this->wildcards_allowed;
    }

References $wildcards_allowed.

Referenced by __parseQuotation(), and parse().

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◆ getCombination()

ilQueryParser::getCombination ( )

Definition at line 147 of file class.ilQueryParser.php.

    {
        return $this->combination;
    }

References $combination.

Referenced by getLuceneQueryString().

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◆ getGlobalMinLength()

ilQueryParser::getGlobalMinLength ( )

Definition at line 112 of file class.ilQueryParser.php.

    {
        return $this->global_min_length;
    }

References $global_min_length.

Referenced by validate().

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◆ getLuceneQueryString()

ilQueryParser::getLuceneQueryString ( )

Definition at line 173 of file class.ilQueryParser.php.

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

References getCombination(), and getQuotedWords().

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◆ getMessage()

ilQueryParser::getMessage ( )

Definition at line 131 of file class.ilQueryParser.php.

    {
        return $this->message;
    }

References $message.

Referenced by appendMessage(), and validate().

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◆ getMinWordLength()

ilQueryParser::getMinWordLength ( )

Definition at line 96 of file class.ilQueryParser.php.

    {
        return $this->min_word_length;
    }

References $min_word_length.

Referenced by parse(), and validate().

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◆ getQueryString()

ilQueryParser::getQueryString ( )

Definition at line 152 of file class.ilQueryParser.php.

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

Referenced by __parseQuotation(), parse(), and validate().

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◆ getQuotedWords()

ilQueryParser::getQuotedWords ( $with_quotation = false )

Definition at line 161 of file class.ilQueryParser.php.

    {
        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();
        }
    }

Referenced by getLuceneQueryString(), and ilAdvancedMDFieldDefinitionText\searchObjects().

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◆ getWords()

ilQueryParser::getWords ( )

Definition at line 156 of file class.ilQueryParser.php.

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

Referenced by validate().

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◆ parse()

ilQueryParser::parse ( )

Definition at line 185 of file class.ilQueryParser.php.

    {
        $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)) < $this->getMinWordLength()) {
                $this->setMessage(sprintf($this->lng->txt('search_minimum_info'), $this->getMinWordLength()));
                continue;
            }
            
            $this->words[] = ilUtil::prepareDBString($word);
        }
        
        $fullstr = trim($this->getQueryString());
        if (!in_array($fullstr, $this->words)) {
            $this->words[] = ilUtil::prepareDBString($fullstr);
        }
                
        if (!$this->getAllowedWildcards()) {
            // #14768
            foreach ($this->words as $idx => $word) {
                if (!stristr($word, '\\')) {
                    $word = str_replace('%', '\%', $word);
                    $word = str_replace('_', '\_', $word);
                }
                $this->words[$idx] = $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;
    }

References __parseQuotation(), getAllowedWildcards(), getMinWordLength(), getQueryString(), ilUtil\prepareDBString(), and setMessage().

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◆ setAllowedWildcards()

ilQueryParser::setAllowedWildcards ( $a_value )

Definition at line 117 of file class.ilQueryParser.php.

    {
        $this->wildcards_allowed = (bool) $a_value;
    }

Referenced by __construct().

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◆ setCombination()

ilQueryParser::setCombination ( $a_combination )

Definition at line 143 of file class.ilQueryParser.php.

    {
        $this->combination = $a_combination;
    }

◆ setGlobalMinLength()

ilQueryParser::setGlobalMinLength ( $a_value )

Definition at line 101 of file class.ilQueryParser.php.

    {
        if ($a_value !== null) {
            $a_value = (int) $a_value;
            if ($a_value < 1) {
                return;
            }
        }
        $this->global_min_length = $a_value;
    }

◆ setMessage()

ilQueryParser::setMessage ( $a_msg )

Definition at line 127 of file class.ilQueryParser.php.

    {
        $this->message = $a_msg;
    }

Referenced by parse(), and validate().

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◆ setMinWordLength()

ilQueryParser::setMinWordLength	(	$a_length,
		$a_force = `false`
	)

Definition at line 84 of file class.ilQueryParser.php.

    {
        // Due to a bug in mysql fulltext search queries with min_word_legth < 3
        // might freeze the system.
        // Thus min_word_length cannot be set to values < 3 if the mysql fulltext is used.
        if (!$a_force and $this->settings->enabledIndex() and $a_length < 3) {
            ilLoggerFactory::getLogger('src')->debug('Disabled min word length');
            return false;
        }
        $this->min_word_length = $a_length;
        return true;
    }

References ilLoggerFactory\getLogger(), and settings().

Referenced by __construct().

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◆ validate()

ilQueryParser::validate ( )

Definition at line 265 of file class.ilQueryParser.php.

    {
        // Words with less than 3 characters
        if (strlen($this->getMessage())) {
            return false;
        }
        // No search string given
        if ($this->getMinWordLength() and !count($this->getWords())) {
            $this->setMessage($this->lng->txt('msg_no_search_string'));
            return false;
        }
        // No search string given
        if ($this->getGlobalMinLength() and strlen(str_replace('"', '', $this->getQueryString())) < $this->getGlobalMinLength()) {
            $this->setMessage(sprintf($this->lng->txt('search_minimum_info'), $this->getGlobalMinLength()));
            return false;
        }
 
        return true;
    }

References getGlobalMinLength(), getMessage(), getMinWordLength(), getQueryString(), getWords(), and setMessage().

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Field Documentation

◆ $combination

ilQueryParser::$combination

Definition at line 53 of file class.ilQueryParser.php.

Referenced by getCombination().

◆ $global_min_length

ilQueryParser::$global_min_length = null

Definition at line 48 of file class.ilQueryParser.php.

Referenced by getGlobalMinLength().

◆ $lng

ilQueryParser::$lng = null

Definition at line 45 of file class.ilQueryParser.php.

Referenced by __construct().

◆ $message

ilQueryParser::$message

Definition at line 52 of file class.ilQueryParser.php.

Referenced by getMessage().

◆ $min_word_length

ilQueryParser::$min_word_length = 0

Definition at line 47 of file class.ilQueryParser.php.

Referenced by getMinWordLength().

◆ $query_str

ilQueryParser::$query_str

Definition at line 50 of file class.ilQueryParser.php.

Referenced by __parseQuotation().

◆ $quoted_words

ilQueryParser::$quoted_words = array()

Definition at line 51 of file class.ilQueryParser.php.

◆ $settings

ilQueryParser::$settings = null

protected

Definition at line 54 of file class.ilQueryParser.php.

◆ $wildcards_allowed

ilQueryParser::$wildcards_allowed

protected

Definition at line 55 of file class.ilQueryParser.php.

Referenced by getAllowedWildcards().

◆ MIN_WORD_LENGTH

const ilQueryParser::MIN_WORD_LENGTH = 3

Minimum of characters required for search.

Definition at line 43 of file class.ilQueryParser.php.

Referenced by __construct().

The documentation for this class was generated from the following file:

Services/Search/classes/class.ilQueryParser.php

Public Member Functions

Data Fields

Protected Attributes

Detailed Description

Constructor & Destructor Documentation

◆ __construct()

Member Function Documentation

◆ __parseQuotation()

◆ appendMessage()

◆ getAllowedWildcards()

◆ getCombination()

◆ getGlobalMinLength()

◆ getLuceneQueryString()

◆ getMessage()

◆ getMinWordLength()

◆ getQueryString()

◆ getQuotedWords()

◆ getWords()

◆ parse()

◆ setAllowedWildcards()

◆ setCombination()

◆ setGlobalMinLength()

◆ setMessage()

◆ setMinWordLength()

◆ validate()

Field Documentation

◆ $combination

◆ $global_min_length

◆ $lng

◆ $message

◆ $min_word_length

◆ $query_str

◆ $quoted_words

◆ $settings

◆ $wildcards_allowed

◆ MIN_WORD_LENGTH