Hi,
I've spent a few hours on this and I read full doc.
I store my data fine using this code
std::ofstream foutSave("Etudes2.json");
if (foutSave.is_open())
{
using json = nlohmann::json;
auto jsonObjectsArray = json::array();
for (auto const &o : _vecEtude)//iterate les etudes
{
auto jsonObjectsArrayCritInclusion = json::array();
auto jsonObjectsArrayCritExclusion = json::array();
json jsonEtudeNom;
jsonEtudeNom["_nom etude"] = o._nom.toStdString();
for (auto const &i : o._vecCritereInclusion)//iterate le vecteur des criteres d'inclusion
{
json jsonObject;
jsonObject["critere inclusion"] = i._nom.toStdString();
jsonObjectsArrayCritInclusion.push_back(jsonObject);
}
jsonEtudeNom["criteres inclusion"] = { jsonObjectsArrayCritInclusion };
for (auto const &i : o._vecCritereExclusion)//iterate le vecteur des criteres d'exclusion
{
json jsonObject;
jsonObject["critere exclusion"] = i._nom.toStdString();
jsonObjectsArrayCritExclusion.push_back(jsonObject);
}
jsonEtudeNom["criteres exclusion"] = { jsonObjectsArrayCritExclusion };
jsonObjectsArray.push_back(jsonEtudeNom);
}
foutSave << jsonObjectsArray.dump(4) << std::endl; //.dump(4) allows pretty formatting, see nlohmann/json for more information.
}
I get a good file, such as this one :
[
{
"_nom etude": "etude 1",
"criteres exclusion": [
{
"critere exclusion": "exclu 1"
},
{
"critere exclusion": "exclu 2"
}
],
"criteres inclusion": [
{
"critere inclusion": "inclu 1"
},
{
"critere inclusion": "inclu 2"
}
]
},
{
"_nom etude": "etude 2",
"criteres exclusion": [
{
"critere exclusion": "exclu 2"
}
],
"criteres inclusion": [
{
"critere inclusion": "inclu 2"
}
]
}
]
I get an array of etude each of which contains a name, a json array of "critere exclusion" and a json array of "critere inclusion".
The problem is reading the file.
I get the first array which i iterate with for (auto& p : jsonObject), it runs okay untill
else if (it.key() == "criteres inclusion")
However even tho this condition succeds, i can't retrieve the array associated with this key.
I've tried
auto jsonArrayCritIncl = it.value();
and
auto jsonArrayCritIncl = it.value().get<json::array>();
nothing works, could you please help me ?
using json = nlohmann::json;
json jsonObject = json::parse(finLoad);
for (auto& p : jsonObject)
{
std::string mystr;
Etude uneEtude;
for (auto it = p.begin(); it != p.end(); ++it)
{
if (it.key() == "_nom etude")
{
mystr = it.value().get<std::string>();
uneEtude._nom = QString::fromStdString(mystr);
}
else if (it.key() == "criteres inclusion")
{
//
auto jsonArrayCritIncl = it.value();
for (auto const& k : jsonArrayCritIncl)
{
//Do stuff
}
}
}
}
}
}
Hi,
I've spent a few hours on this and I read full doc.
I store my data fine using this code
I get a good file, such as this one :
I get an array of etude each of which contains a name, a json array of "critere exclusion" and a json array of "critere inclusion".
The problem is reading the file.
I get the first array which i iterate with for (auto& p : jsonObject), it runs okay untill