Public Member Functions | Data Fields

ilElement Class Reference

Public Member Functions

 Element ()
 constructor
 set ($data)
 set data array
 get ()
 get data array
 setDbTable ($AdbTable)
 set database table
 getDbTable ()
 get name of database table
 setDbHandle ($AdbHandle)
 set database handle
 getDbHandle ()
 get database handle
 queryDb ($query)
 send a query to the database without getting a result
 updateDb ($unique, $value)
 updates dataset where the unique database field matches a given value uses the private data variable of this class for input
 insertDb ()
 inserts a new dataset uses the private data variable of this class for input the function examines $data and extracts the keys and the values and builds the query public
 getDbData ($unique, $value)
 get dataset from database where unique database field matches given value
 getDbDataByQuery ($query)
 get dataset from database using a given query
 getDbValueByQuery ($query, $field)

Data Fields

 $dbHandle
 $dbTable
 $data = array()

Detailed Description

Definition at line 36 of file class.ilElement.php.

Member Function Documentation

ilElement::Element (  ) 

constructor

Definition at line 63 of file class.ilElement.php.

                       {
                // empty
    }

ilElement::get (  ) 

get data array

See also:
$data public

Definition at line 83 of file class.ilElement.php.

                   {
        // Has to be overwritten by object class        
        //return $this->data ;
    }

ilElement::getDbData ( $  unique,
$  value 
)

get dataset from database where unique database field matches given value

Parameters:
string $unique unique database field
mixed $value value for match
Returns:
array dataset public

Definition at line 277 of file class.ilElement.php.

References $q, $result, and getDbTable().

                                        {
        $this->checkDb("ilElement::getDbData()");
        //check unique-key
        if ($unique == "") {
            die("ilElement::getDbData(): No unique database field given.");
        }
        //check value
        if ($value == "") {
            die("ilElement::getDbData(): No value given.");
        }
        //build query
        $q = "SELECT * FROM " . $this->getDbTable() . " WHERE " . $unique . " = " . $this->dbHandle->quote($value);
        $result = $this->dbHandle->query($q);
        //check result
        if (DB::isError($result)) {
            die("ilElement::getDbData(): ".$result->getMessage());
        }
        //return an associative array from query or false
        if ($result->numRows() > 0) {
            return $result->fetchRow(DB_FETCHMODE_ASSOC);
        } else {
            return false;
        }
    } //end function getDbData

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ilElement::getDbDataByQuery ( $  query  ) 

get dataset from database using a given query

Parameters:
string $query query
Returns:
array dataset public

Definition at line 308 of file class.ilElement.php.

References $query, and $result.

                                      {
        //check database handle
        if ($this->dbHandle == "") {
            die("ilElement::getDbDataByQuery(): No database handle given.");
        }
        //check query
        if ($query == "") {
            die("ilElement::getDbDataByQuery(): No query given.");
        }
        //send query
        $result = $this->dbHandle->query($query);
        //analyze resultset
        if (DB::isError($result)) {
            die("ilElement::getDbDataByQuery(): ".$result->getMessage());
        }
        //return associative array or false
        if ($result->numRows() > 0) {
            return $result->fetchRow(DB_FETCHMODE_ASSOC);
        } else {
            return false;
        }
    } //end function getDbDataByQuery

ilElement::getDbHandle (  ) 

get database handle

See also:
$dbHandle public
Returns:
object database handle

Definition at line 132 of file class.ilElement.php.

                           {
        return $this->dbHandle;
    }

ilElement::getDbTable (  ) 

get name of database table

Returns:
string name of database table
See also:
$dbTable public

Definition at line 108 of file class.ilElement.php.

Referenced by getDbData().

                          {
        return $this->dbTable;
    }

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ilElement::getDbValueByQuery ( $  query,
$  field 
)
Parameters:
string 
string 

Definition at line 335 of file class.ilElement.php.

References $query, and $result.

                                               {
        //check database handle
        if ($this->dbHandle == "") {
            die("ilElement::getDbDataByQuery(): No database handle given.");
        }
        //check query
        if ($query == "") {
            die("ilElement::getDbDataByQuery(): No query given.");
        }
        $result = $this->dbHandle->query($query);
        //analyze resultset
        if (DB::isError($result)) {
            die("ilElement::getDbValueByQuery(): ".$result->getMessage());
        }
        //return associative array or false
        if ($result->numRows() > 0) {
            $R = $result->fetchRow(DB_FETCHMODE_ASSOC);
            return( $R[$field] );
        } else {
            return false;
        }
        
    }

ilElement::insertDb (  ) 

inserts a new dataset uses the private data variable of this class for input the function examines $data and extracts the keys and the values and builds the query public

Definition at line 218 of file class.ilElement.php.

References $data, $fields, $q, and $result.

                        {
        $this->checkDb("ilElement::insertDb()");
        //check data
        if (!is_array($this->data)) {
            die("ilElement::insertDB(): No data given.");
        }
        //build query
        $fields = "";
        $values = "";
        while (list($key, $val) = each($this->data)) {
            $fields .= $key . ", ";
            if (substr($val, 0, 9) == "password(") {
                $val = trim($val);
                $val= substr($val, 10);
                $val = substr($val, 0, strlen($val) - 2);
                $values .= "password(" . $this->dbHandle->quote($val . "") . "), ";
            } else {
                $values .= $this->dbHandle->quote($val . "") . ", ";
            }
        }
        //check fields string
        if ($fields == "") {
            die("ilElement::insertDB(): No fields given.");
        }
        //check values-string
        if ($values == "") {
            die("ilElement::insertDB(): No values given.");
        }
        //truncate fields (there is a comma at the end...)
        $fields = substr($fields, 0, strlen($fields)-2);
        $values = substr($values, 0, strlen($values)-2);
        $q = "INSERT INTO " . $this->dbTable . " (" . $fields . ") VALUES (" . $values . ")";

        //evaluate result
        $result = $this->dbHandle->query($q);
        if (DB::isError($result)) {
            die("ilElement::insertDb(): ".$result->getMessage()." : $q");
        }
        //query the unique-key of inserted dataset
        $q = "SELECT LAST_INSERT_ID()";
        $this->result = $this->dbHandle->query($q);
        if (DB::isError($result)) {
            die("ilElement::insertDb()-Last_ID: ".$result->getMessage());
        }
        //query the result
        if ($data = $this->result->fetchRow()) {
            return $data[0];
        } else {
            return(0);
        }
    } //end function insertDb

ilElement::queryDb ( $  query  ) 

send a query to the database without getting a result

Parameters:
string $query query
Returns:
bool true public

Definition at line 142 of file class.ilElement.php.

References $query, and $result.

                             {
        $this->checkDb("ilElement::queryDb()");
        //query is empty?
        if ($query == "") {
            die("ilElement::queryDb(): No query given.");
        }
        //evaluate the result
        $result = $this->dbHandle->query($query);
        if (DB::isError($result)) {
            die("ilElement::queryDb(): ".$result->getMessage());
        }

        return true;
    }

ilElement::set ( $  data  ) 

set data array

See also:
$data public
Parameters:
array $data element data

Definition at line 73 of file class.ilElement.php.

                        {
        // Has to be overwritten by object class
                //$this->data = $data;
    }

ilElement::setDbHandle ( $  AdbHandle  ) 

set database handle

See also:
$dbHandle public
Parameters:
string database handle

Definition at line 118 of file class.ilElement.php.

                                     {
        if ($AdbHandle == "") {
                        die("<b>Error: No Database handle given!</b><br>class: ".get_class($this)."<br>Script: ".__FILE__."<br>Line: ".__LINE__);
        } else {
            $this->dbHandle = $AdbHandle;
        }
    }

ilElement::setDbTable ( $  AdbTable  ) 

set database table

Parameters:
string database table
See also:
$dbTable public

Definition at line 94 of file class.ilElement.php.

                                   {
        if ($AdbTable == "") {
            die("ilElement::setDbTable(): No database table given.");
        } else {
            $this->dbTable = $AdbTable;
        }
    }

ilElement::updateDb ( $  unique,
$  value 
)

updates dataset where the unique database field matches a given value uses the private data variable of this class for input

Parameters:
string $unique unique database field
mixed $value value for match public

Definition at line 164 of file class.ilElement.php.

References $q, and $result.

                                       {
        $this->checkDb("ilElement::updateDb()");
        //check unique
        if ($unique == "") {
            die("ilElement::updateDB(): No unique database field given.");
        }
        //check value
        if ($value == "") {
            die("ilElement::updateDB(): No value given.");
        }
        //check the private data-array
        if (!is_array($this->data)) {
            die("ilElement::updateDB(): No data given.");
        }
        //build query
        $subq = "";
        while (list($key, $val) = each($this->data)) {
            if (substr($val, 0, 9) == "password(") {
                $val = trim($val);
                $val= substr($val, 10);
                $val = substr($val, 0, strlen($val) - 2);
                $subq .= $key. " = password(" . $this->dbHandle->quote($val . "") . "), ";
            } else {
                $subq .= $key . " = ". $this->dbHandle->quote($val) . ", ";
            }

        }
        /* alt
        while (list($key, $val) = each($this->data)) {
            $subq .= $key . " = " . $this->dbHandle->quote($val) . ", ";
        }
        */
        //query is empty
        if ($subq == "") {
            die("ilElement::updateDB(): No data given.");
        }
        //truncate subq (there is a comma...)
        $subq = substr($subq, 0, strlen($subq)-2);
        //set query
        $q = "UPDATE " . $this->dbTable . " SET " . $subq . " WHERE " . $unique . " = " . $this->dbHandle->quote($value);
        $this->dbHandle->query($q);
        //evaluate result
        if (DB::isError($result)) {
            die("ilElement::updateDb(): ".$result->getMessage()." : $q");
        }
    } //end function updateDb

Field Documentation

ilElement::$data = array()

Definition at line 57 of file class.ilElement.php.

Referenced by insertDb().

ilElement::$dbHandle

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

ilElement::$dbTable

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

The documentation for this class was generated from the following file:
Generated on Fri Dec 13 2013 10:18:40 for ILIAS Release_3_5_x_branch .rev 46805 by  doxygen 1.7.1