How do we store a parsed xml file in Qt?

[varshit]

@mrjj

Hi

I am attaching a sample XML file and its output, Now I need to store this output in a data structure. for example, the data structure can be QMap, QStack or QHash or anything that has advantages.

Thank you

[mrjj]

Hi
What data structure that works best would depend on what you need to do with after.
Do you need this data to be exposed to QML ?
If yes, we should use a data type that QML understand then.
Also Qmap would allow you to look up that data using a key but do you need that ?

[varshit]

@mrjj

Hi, Thank you for helping me at this time.

yes, I need this data to be exposed to QML.
Yes, I need to store this data in keys and values style.

here's where I am going wrong with what data structure should I use. can you suggest me a data structure that understands the QML?

[Pablo J. Rogina]

@varshit said in How do we store a parsed xml file in Qt?:

e a data structure that understands the QML?

Are you trying to create a UI in QML based on that XML? If so it looks like you may want to start creating QML components as you parse the XML then

[varshit]

@Pablo-J-Rogina

Hi

We want to create a UI inQML based on that XML.
We created the QML components using QComponents

Now I want to store the parsed XML file in a QMap or QHash or etc or in any container class.
Please help me with the storing part.

Thank you

[jsulm]

@varshit What exact problem do you have with storing key/value pairs from XML in QMap/QHash which you already print out?

[JonB]

@varshit
May I ask again why you wish to try to turn this into QMap or QHash?

You're going to have to store it as a "recursive tree" of QMap/QHashes, to allow for the structure and avoid duplicates. For example, an XML document could easily have multiple nodes named /a/b, so you cannot easily just use a "flat" key for your maps/hashes to avoid all the nesting....

I wrote earlier that you already have a parsed structure which captures the whole XML document. And it's a QDomDocument with QDomNodes. You don't have to do your own parsing/copying, because it's done for you, and you can search/walk that as required. It can also serialize to/deserialize from text. So you're done!?

[varshit]

@JonB

Hi
Now my main part is to store that output data (image inserted above) in [QMap<QString, QMap<QString, QString>>;] this data structure.

Thank you

[varshit]

@jsulm

Hi
I am not able to understand or figure out how to store these Key-value pairs in the above-mentioned data structure.

[JonB]

@varshit
So your top-level QMap<QString, QMap<QString, QString>> will have keys breakfast_menu, Veg, etc. Each one will have its own QMap<QString, QString> as value. Those inner QMaps will have keys menu1, menu2 with values veg, non-veg, etc. Nothing else to say.

[mrjj]

@varshit said in How do we store a parsed xml file in Qt?:

[QMap<QString, QMap<QString, QString>>;]

It would be like

     using  MemberMap = QMap<QString, QString>;
     QMap<QString, MemberMap> items;
     
     MemberMap m1;
     m1["text"]="value";
     ...
     items["ID"]=m1;
     
     MemberMap m2;
     m1["text"]="value";
     ...
     items["ID"]=m2;
     

But using your real data for key value and ID