Comments on: QJson: from QObject to JSON and vice-versa http://flavio.castelli.name/qjson-qobject-serialization-deserialization debugging my life Sat, 28 Jan 2012 07:37:17 +0000 hourly 1 http://wordpress.org/?v=3.2.1 By: Flavio http://flavio.castelli.name/qjson-qobject-serialization-deserialization/comment-page-1#comment-13267 Flavio Fri, 15 Apr 2011 07:40:10 +0000 http://flavio.castelli.name/?p=273#comment-13267 // this is a list not a map QVariantList filesList = parser.parse(filesListResponse.toAscii(), &parseSuccessful).toList(); foreach (QVariant item, fileList) { QVariantMap file = item.toMap(); qDebug() << "id:" << file["id"].toInt; qDebug() << "file_list:" << file["file_list"].toString(); qDebug() << "size:" << file["size"].toInt(); } // this is a list not a map
QVariantList filesList = parser.parse(filesListResponse.toAscii(), &parseSuccessful).toList();
foreach (QVariant item, fileList) {
QVariantMap file = item.toMap();
qDebug() << “id:” << file["id"].toInt;
qDebug() << “file_list:” << file["file_list"].toString();
qDebug() << “size:” << file["size"].toInt();
}

]]> By: Marius http://flavio.castelli.name/qjson-qobject-serialization-deserialization/comment-page-1#comment-13234 Marius Mon, 11 Apr 2011 12:56:42 +0000 http://flavio.castelli.name/?p=273#comment-13234 Hi! How can I access elements of this form?: [ { "id": "13302", "files_list": "phiculator.exe", "size": "2203915" }, { "id": "13308", "files_list": "2011-03-24 13.09.29.jpg", "size": "1541166" } ] I have the following code: QString filesListResponse = reply->readAll(); QJson::Parser parser; bool parseSuccessful; QMap filesList = parser.parse(filesListResponse.toAscii(), &parseSuccessful).toMap(); if(parseSuccessful) { // now what I want here is to get to (let's say) the second element, which logically translates to: // filesList[1]["size"] which should return "1541166" // What can I do this? I probably have to use a foreach() statement in conjunction with another QMap? // Thanks! } Hi!

How can I access elements of this form?:

[
{
"id": "13302",
"files_list": "phiculator.exe",
"size": "2203915"
},
{
"id": "13308",
"files_list": "2011-03-24 13.09.29.jpg",
"size": "1541166"
}
]

I have the following code:

QString filesListResponse = reply->readAll();

QJson::Parser parser;
bool parseSuccessful;
QMap filesList = parser.parse(filesListResponse.toAscii(), &parseSuccessful).toMap();

if(parseSuccessful)
{
// now what I want here is to get to (let’s say) the second element, which logically translates to:
// filesList[1]["size"] which should return “1541166″
// What can I do this? I probably have to use a foreach() statement in conjunction with another QMap?
// Thanks!
}

]]> By: Donald D http://flavio.castelli.name/qjson-qobject-serialization-deserialization/comment-page-1#comment-13130 Donald D Wed, 16 Mar 2011 13:23:05 +0000 http://flavio.castelli.name/?p=273#comment-13130 First of all, thank you for creating qjson! I'm having problems with enums. If I test the example, converting from object to string is working perfectly, but when I try to parse the json string, everything gets converted except the enum Gender. Is this a common problem? First of all, thank you for creating qjson!

I’m having problems with enums. If I test the example, converting from object to string is working perfectly, but when I try to parse the json string, everything gets converted except the enum Gender. Is this a common problem?

]]> By: Flavio http://flavio.castelli.name/qjson-qobject-serialization-deserialization/comment-page-1#comment-13053 Flavio Wed, 02 Feb 2011 22:49:27 +0000 http://flavio.castelli.name/?p=273#comment-13053 In these situations you have to write a manual serialization procedure which iterates over the complex structures of your class. In these situations you have to write a manual serialization procedure which iterates over the complex structures of your class.

]]> By: Johan Paul http://flavio.castelli.name/qjson-qobject-serialization-deserialization/comment-page-1#comment-13049 Johan Paul Mon, 31 Jan 2011 23:04:21 +0000 http://flavio.castelli.name/?p=273#comment-13049 I find QJSON a very good JSON parser for Qt, so thank you for that! But what has been discussed on the comments here still seems to be the case; serialization of more complex JSON values / QObjects is still not possible, right? Like having arrays of arrays. I find QJSON a very good JSON parser for Qt, so thank you for that! But what has been discussed on the comments here still seems to be the case; serialization of more complex JSON values / QObjects is still not possible, right? Like having arrays of arrays.

]]> By: ♥ QJSON ♥ « Apachelogger's Log http://flavio.castelli.name/qjson-qobject-serialization-deserialization/comment-page-1#comment-10662 ♥ QJSON ♥ « Apachelogger's Log Wed, 02 Jun 2010 08:26:22 +0000 http://flavio.castelli.name/?p=273#comment-10662 [...] and a int property named “bar” in order to deserialize this map. Please take a look at this blog post about serialization and deserialization of JSON and QObjects. It should make the basics very easy [...] [...] and a int property named “bar” in order to deserialize this map. Please take a look at this blog post about serialization and deserialization of JSON and QObjects. It should make the basics very easy [...]

]]> By: Sammy D'Souza http://flavio.castelli.name/qjson-qobject-serialization-deserialization/comment-page-1#comment-10649 Sammy D'Souza Tue, 18 May 2010 01:17:53 +0000 http://flavio.castelli.name/?p=273#comment-10649 Hi Flavio Have you had a chance to do this? You'd mentioned taking care of nested types such that eventually qObjectHelper would be un-necessary - is that done? Essentially, what is your recommendation for going from JSON to/from a hydrated Object that can contain other objects or lists of objects? Thanks Sammy Hi Flavio
Have you had a chance to do this? You’d mentioned taking care of nested types such that eventually qObjectHelper would be un-necessary – is that done?

Essentially, what is your recommendation for going from JSON to/from a hydrated Object that can contain other objects or lists of objects?

Thanks
Sammy

]]> By: Sammy D'Souza http://flavio.castelli.name/qjson-qobject-serialization-deserialization/comment-page-1#comment-10645 Sammy D'Souza Fri, 14 May 2010 04:30:16 +0000 http://flavio.castelli.name/?p=273#comment-10645 Flavio Do you have any examples for complex JSON objects? I'm thinking objects that contain other objects or arrays of other objects or stuff like that... for instance, a JSON response like http://services.arcgisonline.com/ArcGIS/rest/services/ESRI_Imagery_World_2D/MapServer?f=pjson Thanks Sammy Flavio

Do you have any examples for complex JSON objects? I’m thinking objects that contain other objects or arrays of other objects or stuff like that… for instance, a JSON response like http://services.arcgisonline.com/ArcGIS/rest/services/ESRI_Imagery_World_2D/MapServer?f=pjson

Thanks
Sammy

]]> By: Flavio http://flavio.castelli.name/qjson-qobject-serialization-deserialization/comment-page-1#comment-10364 Flavio Sat, 05 Dec 2009 17:54:47 +0000 http://flavio.castelli.name/?p=273#comment-10364 Well, the serialization would just require more time... Well, the serialization would just require more time…

]]> By: Flavio http://flavio.castelli.name/qjson-qobject-serialization-deserialization/comment-page-1#comment-10363 Flavio Sat, 05 Dec 2009 17:48:39 +0000 http://flavio.castelli.name/?p=273#comment-10363 This isn't possible because of certain error handling code. This isn’t possible because of certain error handling code.

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