/** * Fetch next row into variable * @return bool if next row exists */ public function nextRow() { if ($this->source->nextRow()) { $this->row =& $this->source->row; if (empty($this->displayColumns) && !empty($this->source->displayColumns)) { $this->displayColumns = $this->source->displayColumns; } $origKeys = array_keys($this->row); $functionReturn = $this->functionEvaluator->evaluateFunction($this->functionArray, $this->row); if ($this->fieldToAssign) { $this->source->row[$this->fieldToAssign] = $functionReturn; if (!in_array($this->fieldToAssign, $this->displayColumns)) { $this->displayColumns[] = $this->fieldToAssign; } } else { if ($functionReturn === null || is_array($functionReturn)) { // $functionReturn when a reference was passed in and row may be modified // New row returned if (is_array($functionReturn)) { // function returns new array for the entry $this->source->row = $functionReturn; $this->row =& $this->source->row; } // Reconcile display columns // 1. Check for the addition of new columns to add to displays $newFieldsSeen = array(); $newKeys = array_keys($this->row); $addedKeys = array_diff($newKeys, $origKeys); if (!empty($addedKeys)) { foreach ($addedKeys as $add) { if (!in_array($add, $this->displayColumns)) { $this->displayColumns[] = $add; $newFieldsSeen[] = $add; } } } // 2. Remove display columns that no longer exist $updatedDisplays = array(); foreach ($this->displayColumns as $aDisplay) { if (in_array($aDisplay, $newKeys) || in_array($aDisplay, $newFieldsSeen)) { $updatedDisplays[] = $aDisplay; } } $this->displayColumns = $updatedDisplays; } } return true; } return false; }
/** * Fetch next row into variable * @return bool if next row exists */ public function nextRow() { if ($this->source->nextRow()) { $this->row =& $this->source->row; $functionReturn = $this->functionEvaluator->evaluateFunction($this->functionArray, $this->row); if ($this->fieldToAssign) { $this->source->row[$this->fieldToAssign] = $functionReturn; } else { if (is_array($functionReturn)) { // function returns new array for the entry $this->source->row = $functionReturn; $this->row =& $this->source->row; } } return true; } return false; }