Ümit Tunç
243 lines
9.8 KiB
PHP
243 lines
9.8 KiB
PHP
<?php
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namespace App\DevExtreme;
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class FilterHelper {
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private static $AND_OP = "AND";
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private static $OR_OP = "OR";
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private static $LIKE_OP = "LIKE";
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private static $NOT_OP = "NOT";
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private static $IS_OP = "IS";
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private static function _GetSqlFieldName($field) {
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$fieldParts = explode(".", $field);
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$result = "";
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$fieldName = Utils::QuoteStringValue(trim($fieldParts[0]));
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if (count($fieldParts) == 2) {
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$dateProperty = trim($fieldParts[1]);
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$sqlDateFunction = "";
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$fieldPattern = "";
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switch ($dateProperty) {
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case "year":
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case "month":
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case "day": {
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$sqlDateFunction = strtoupper($dateProperty);
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$fieldPattern = "%s(%s)";
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break;
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}
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case "dayOfWeek": {
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$sqlDateFunction = strtoupper($dateProperty);
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$fieldPattern = "%s(%s) - 1";
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break;
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}
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default: {
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throw new \Exception("The \"".$dateProperty."\" command is not supported");
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}
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}
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$result = sprintf($fieldPattern, $sqlDateFunction, $fieldName);
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}
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else {
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$result = $fieldName;
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}
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return $result;
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}
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private static function _GetSimpleSqlExpr($expression) {
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$result = "";
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$itemsCount = count($expression);
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$fieldName = self::_GetSqlFieldName(trim($expression[0]));
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// Known operators list
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$knownOperators = ['=', '<>', '>', '>=', '<', '<=', 'startswith', 'endswith', 'contains', 'notcontains', 'in', '==='];
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if ($itemsCount == 2) {
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$val = $expression[1];
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$valLower = is_string($val) ? strtolower(trim($val)) : '';
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// Check if second element is an operator (means searching for empty values)
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if (in_array($valLower, $knownOperators)) {
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// This is an operator without value - treat as empty value search
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switch ($valLower) {
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case 'contains':
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case 'startswith':
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case 'endswith':
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case '=':
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// Search for NULL or empty string
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$result = sprintf("(%s IS NULL OR %s = '')", $fieldName, $fieldName);
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break;
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case '<>':
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case 'notcontains':
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// Search for NOT NULL and NOT empty
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$result = sprintf("(%s IS NOT NULL AND %s != '')", $fieldName, $fieldName);
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break;
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default:
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// For other operators, just check IS NULL
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$result = sprintf("%s IS NULL", $fieldName);
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break;
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}
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} elseif ($val === "(Empty)" || $val === "(Boş)" || $val === "") {
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$result = sprintf("%s IS NULL", $fieldName);
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} else {
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$result = sprintf("%s = %s", $fieldName, Utils::QuoteStringValue($val, false));
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}
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}
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else if ($itemsCount == 3) {
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$clause = strtolower(trim($expression[1]));
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$val = $expression[2];
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if ($val === "(Empty)" || $val === "(Boş)" || $val === "" || is_null($val)) {
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switch ($clause) {
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case "=":
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case "contains":
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case "startswith":
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case "endswith": {
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// Hem NULL hem empty string için kontrol
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if(strpos($fieldName, 'date') !== false) {
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$result = sprintf("(%s IS NULL)", $fieldName);
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} else {
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$result = sprintf("(%s IS NULL OR %s = '')", $fieldName, $fieldName);
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}
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return $result;
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}
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case "<>":
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case "notcontains": {
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// Ne NULL ne de empty string
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$result = sprintf("(%s IS NOT NULL AND %s != '')", $fieldName, $fieldName);
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return $result;
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}
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}
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}
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else {
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switch ($clause) {
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case "===": {
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// Exact match - DO NOT split comma-separated values
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$result = sprintf("%s = %s", $fieldName, Utils::QuoteStringValue($val, false));
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return $result;
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}
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case "=": {
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// Exact match - treat comma-separated values as single entity
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$pattern = "%s %s %s";
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$val = Utils::QuoteStringValue($val, false);
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break;
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}
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case "<>": {
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$pattern = "%s %s %s";
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$val = Utils::QuoteStringValue($val, false);
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break;
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}
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case ">":
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case ">=":
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case "<":
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case "<=": {
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$pattern = "%s %s %s";
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$val = Utils::QuoteStringValue($val, false);
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break;
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}
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case "startswith": {
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$pattern = "%s %s '%s%%'";
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$clause = self::$LIKE_OP;
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$val = addcslashes($val, "%_");
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break;
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}
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case "endswith": {
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$pattern = "%s %s '%%%s'";
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$val = addcslashes($val, "%_");
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$clause = self::$LIKE_OP;
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break;
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}
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case "contains": {
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$pattern = "%s %s '%%%s%%'";
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$val = addcslashes($val, "%_");
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$clause = self::$LIKE_OP;
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break;
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}
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case "notcontains": {
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$pattern = "%s %s '%%%s%%'";
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$val = addcslashes($val, "%_");
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$clause = sprintf("%s %s", self::$NOT_OP, self::$LIKE_OP);
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break;
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}
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case "noneof": {
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if (is_array($val) && count($val) > 0) {
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$quotedValues = array_map(function($v) {
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return Utils::QuoteStringValue($v, false);
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}, $val);
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$result = sprintf("%s NOT IN (%s)", $fieldName, implode(", ", $quotedValues));
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return $result;
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}
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$pattern = "%s <> %s";
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$val = Utils::QuoteStringValue($val, false);
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break;
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}
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case "anyof":
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case "in": {
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if (is_array($val) && count($val) > 0) {
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$quotedValues = array_map(function($v) {
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return Utils::QuoteStringValue($v, false);
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}, $val);
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$result = sprintf("%s IN (%s)", $fieldName, implode(", ", $quotedValues));
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return $result;
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}
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// Fall through to default if not array
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}
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default: {
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$clause = $clause ?: "=";
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$pattern = "%s %s %s";
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if(!is_array($val)) {
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$val = Utils::QuoteStringValue($val, false);
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}
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}
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}
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}
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if(isset($pattern)) {
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$result = sprintf($pattern, $fieldName, $clause, $val);
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$result = str_replace(" = ''", " is null", $result);
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} else {
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$result = ""; // Should not happen with new default logic but safe fallback
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}
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}
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return $result;
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}
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public static function GetSqlExprByArray($expression) {
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$result = "(";
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$prevItemWasArray = false;
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foreach ($expression as $index => $item) {
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if (is_string($item)) {
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$prevItemWasArray = false;
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if ($index == 0) {
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if ($item == "!") {
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$result .= sprintf("%s ", self::$NOT_OP);
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continue;
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}
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$result .= (isset($expression) && is_array($expression)) ? self::_GetSimpleSqlExpr($expression) : "";
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break;
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}
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$strItem = strtoupper(trim($item));
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if ($strItem == self::$AND_OP || $strItem == self::$OR_OP) {
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$result .= sprintf(" %s ", $strItem);
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}
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continue;
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}
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if (is_array($item)) {
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if ($prevItemWasArray) {
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$result .= sprintf(" %s ", self::$AND_OP);
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}
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$result .= self::GetSqlExprByArray($item);
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$prevItemWasArray = true;
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}
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}
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$result .= ")";
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return $result;
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}
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public static function GetSqlExprByKey($key) {
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$result = "";
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foreach ($key as $prop => $value) {
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$templ = strlen($result) == 0 ?
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"%s = %s" :
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" ".self::$AND_OP." %s = %s";
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$result .= sprintf($templ,
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Utils::QuoteStringValue($prop),
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Utils::QuoteStringValue($value, false));
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}
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return $result;
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}
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}
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