iPhoneのRESTful Webサービス：データがデータベースに挿入されていない

Question

MAMPに付属している「シェイプ」Webサービスを使用してチュートリアルを始めることから始めました。今私は自分のためにサービスを作り直そうとしています。私は現在、解決策や過去5時間の問題のデバッグ方法を探していました。 PHPはPHPではないので、どのようにしてデバッグをセットアップしたり、URLレスポンスを出力するかについてはわかりません。誰の助けも大歓迎です。

Objective-Cのコード：

NSString* serviceRootUrlString = @"http://localhost:8888/answers/Answers/"; 
NSURL* answerService = [NSURL URLWithString:serviceRootUrlString]; 
_database = [[Database alloc] initWithServiceUrl:answerService]; 

- (void)nextQuestionWithAnswer:(NSString *)answer andComment:(NSString *)comment 
{ 
    NSString* deviceId = [[UIDevice currentDevice] uniqueIdentifier]; 
    NSData* deviceIdAsData = [deviceId dataUsingEncoding:NSUTF8StringEncoding]; 
    NSString* deviceHash = [Database MD5Hash:deviceIdAsData]; 

    NSMutableDictionary* answerDictionary = [NSMutableDictionary dictionary]; 
    [answerDictionary setObject:deviceHash forKey:@"SetId"]; 
    [answerDictionary setObject:[NSNumber numberWithInt:(_currentQuestionNumber + 1)] forKey:@"QuestionId"]; 
    [answerDictionary setObject:answer forKey:@"Answer"]; 
    [answerDictionary setObject:comment forKey:@"Comment"]; 

    [_database insertRecordWithDictionary:answerDictionary]; 

    [self nextQuestion]; 
} 

- (BOOL)insertRecordWithDictionary:(NSDictionary *)recordDictionary 
{ 
    NSData* recordPropertyListData = [NSPropertyListSerialization dataFromPropertyList:recordDictionary format:NSPropertyListXMLFormat_v1_0 errorDescription:nil]; 

    NSMutableURLRequest* urlRequest = [NSMutableURLRequest requestWithURL:_serviceUrl]; 
    [urlRequest setHTTPMethod:@"POST"]; 
    [urlRequest setHTTPBody:recordPropertyListData]; 

    NSURLResponse* response = nil; 
    NSError* error = nil; 

    NSData* responseData = [NSURLConnection sendSynchronousRequest:urlRequest returningResponse:&response error:&error]; 

    id propertyList = [NSPropertyListSerialization propertyListWithData:responseData options:NSPropertyListImmutable format:nil error:nil]; 

    NSDictionary* responseDictionary = (NSDictionary*)propertyList; 

    NSLog(@"New Record result: %@", responseDictionary); 

    if (error == nil) 
    { 
     return YES; 
    } 
    else 
    { 
     NSLog(@"Database Error: %@", [error description]); 

     return NO; 
    } 
} 

PHPコード：

<?php 
require_once 'CFPropertyList/CFPropertyList.php'; 

// connect to database 
$connection = mysql_connect("localhost:8889","root","root"); 
if (!$connection) 
    die("Could not connect: " . mysql_error()); 

// Database layout 
$databaseName = "answers"; 
$surveyAnswersTableName = "Answers"; 
$surveyAnswersArrayName = "Answers"; 
$answerId = "Id"; 
$answerTimeStamp = "TimeStamp"; 
$answerSetId = "SetId"; 
$answerQuestionId = "QuestionId"; 
$answerAnswer = "Answer"; 
$answerComment = "Comment"; 

// Determine the requested resource, stripping empty resource elements and the base name 
$base = "answers"; 
$resourceKeys = array_merge(array_diff(explode("/", $_SERVER[REQUEST_URI]), array("", $base))); 

// Detect usage of the old setup 
if (count($resourceKeys) == 0) 
    die("Specify a table that contains your shapes. Ex: http://the_host_name:8888/answers/your_user_name/"); 

// Use the first resource key as the table name, then strip it away 
$surveyAnswersTableName = $resourceKeys[0]; 
$resourceKeys = array_merge(array_diff($resourceKeys, array($surveyAnswersTableName))); 

// Check for the database. Create the database and populate it if it does not exist 
$databaseExists = mysql_select_db($databaseName, $connection); 
if (!$databaseExists) 
{ 
    // Create and select the ozzie database 
    mysql_query("CREATE DATABASE $databaseName",$connection); 
    $databaseExists = mysql_select_db($databaseName, $connection); 
    if (!$databaseExists) 
     die("Could not create database $databaseName: " . mysql_error()); 
} 

// Check for the requested answers table 
$sql = "SHOW TABLES LIKE '$surveyAnswersTableName'"; 
mysql_query($sql, $connection); 
$row = mysql_fetch_array($result); 
print($row); 

// Create it if it does not exist 
if ($row == FALSE) 
{ 
    // Create the table that holds the answers 
    $sql = "CREATE TABLE $surveyAnswersTableName 
    (
     $answerId int NOT NULL AUTO_INCREMENT PRIMARY KEY, 
     $answerTimeStamp TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP, 
     $answerSetId text, 
     $answerQuestionId int, 
     $answerAnswer text, 
     $answerComment text 
    )"; 

    mysql_query($sql, $connection); 
} 

if ($_SERVER[REQUEST_METHOD] == "POST") 
{ 
    // Insert or append shape specified in POST to the database 
    if (count($resourceKeys) == 0) 
    { 
     // Load the posted plist into a property list object 
     // HACK: Save post data to file to load into plist. Should be able to load directly from php://input, but won't... 
     $postdata = file_get_contents("php://input"); 
     $fileName = dirname(__FILE__) . "/tmp.php"; 
     $file = fopen($fileName, 'w') or die("Cannot open file"); 
     fwrite($file, $postdata); 
     fclose($file); 
     $postPlist = new CFPropertyList($fileName); 
     unlink($fileName); 

     // Unpack data for answer 
     // TODO: Verify data 
     $answerDictionary = $postPlist->getValue(true); 
     $setId = $answerDictionary->get($answerSetId); 
     $questionId = $answerDictionary->get($answerQuestionId); 
     $answer = $answerDictionary->get($answerAnswer); 
     $comment = $answerDictionary->get($answerComment); 

     // Insert answer into database 
     $sql = "INSERT INTO $surveyAnswersTableName 
     (
      $answerSetId, 
      $answerQuestionId, 
      $answerAnswer, 
      $answerComment 
     ) 
     VALUES 
     (
      '$setId', 
      '$questionId', 
      '$answer', 
      '$comment' 
     )"; 

     mysql_query($sql,$connection); 

     print($sql); 

     // Package result into outer dictionary 
     // TODO: Call method instead 

     $resultDictionary = new CFDictionary(); 
     $resultDictionary->add($surveyAnswersArrayName, new CFString("Answer inserted.")); 

     // Package outer dictionary into a property list and transmit 
     $resultPlist = new CFPropertyList(); 
     $resultPlist->add($resultDictionary); 
     header("Content-type: text/xml"); 
     print($resultPlist->toXML(true)); 
    } 
    else if (count($resourceKeys) >= 1) 
    { 
     // Load the posted plist into a property list object 
     // HACK: Save post data to file to load into plist. Should be able to load directly from php://input, but won't... 
     $postdata = file_get_contents("php://input"); 
     $fileName = dirname(__FILE__) . "/tmp.php"; 
     $file = fopen($fileName, 'w') or die("Cannot open file"); 
     fwrite($file, $postdata); 
     fclose($file); 
     $postPlist = new CFPropertyList($fileName); 
     unlink($fileName); 

     // Unpack data for shape 
     // TODO: Verify data 
     $answerDictionary = $postPlist->getValue(true); 
     $setId = $answerDictionary->get($answerSetId); 
     $questionId = $answerDictionary->get($answerQuestionId); 
     $answer = $answerDictionary->get($answerAnswer); 
     $comment = $answerDictionary->get($answerComment); 

     // Determine requested shape 
     $requestedAnswerSetId = $resourceKeys[0]; 

     // Query to re-number shapes 
     $sql = "UPDATE $surveyAnswersTableName SET $answerId = $answerId + 1 WHERE $answerId >= $requestedAnswerId"; 
     print($sql); 
     $result = mysql_query($sql); 

     // Insert shape into database 
     $sql = "INSERT INTO $surveyAnswersTableName 
     (
      $answerSetId, 
      $answerQuestionId, 
      $answerAnswer, 
      $answerComment 
     ) 
     VALUES 
     (
      '$setId', 
      '$questionId', 
      '$answer', 
      '$comment' 
     )"; 

     mysql_query($sql,$connection); 

     print($sql); 

     // Package result into outer dictionary 
     // TODO: Call method instead 
     // TODO: Verify that add completed successfully 
     $resultDictionary = new CFDictionary(); 
     $resultDictionary->add($surveyAnswersArrayName, new CFString("Answer inserted.")); 

     // Package outer dictionary into a property list and transmit 
     $resultPlist = new CFPropertyList(); 
     $resultPlist->add($resultDictionary); 
     header("Content-type: text/xml"); 
     print($resultPlist->toXML(true)); 
    } 
    else 
     die("Invalid request"); 
} 

?> 

私はこのコードを解析するために誰かのために多くのことを求めています知っているが、それは非常に高く評価されるだろう。 iOSとXCodeのを使用して印刷応答のために

Answer 1

：

NSData* responseData = [NSURLConnection sendSynchronousRequest:urlRequest returningResponse:&response error:&error]; 
NSLog(@"Reponse: %@", [[[NSString alloc]initWithData:responseData encoding:NSUTF8StringEncoding] autorelease]); 

のiOSは、どこかの入力が含まれているHTMLフォームとHTMLファイルを作成せずに、チェックPHPの応答のために。これらの入力は、recordDictionary変数と同じキーと値を持つ必要があります。フォームアクションは、serviceRootUrlString変数のPOSTメソッドと同じにする必要があります。

See this tutorial for more information about HTML forms