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'Export -> Table(s) to JSON' takes into account the column type

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Use SQLite3 and Qt APIs to export the table data using appropriate JSON
data types.

See issue #1323: JSON table export converts integer and null values to
string.
This commit is contained in:
mgrojo
2018-02-26 21:52:16 +01:00
parent 379bbb81a2
commit b1ba58fcc0
1 changed files with 26 additions and 4 deletions
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30
src/ExportDataDialog.cpp
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@@ -220,10 +220,32 @@ bool ExportDataDialog::exportQueryJson(const QString& sQuery, const QString& sFi
QJsonObject json_row;
for(int i=0;i<columns;++i)
{
QString content = QString::fromUtf8(
(const char*)sqlite3_column_blob(stmt, i),
sqlite3_column_bytes(stmt, i));
json_row.insert(column_names[i], content);
int type = sqlite3_column_type(stmt, i);
switch (type) {
case SQLITE_INTEGER: {
qint64 content = sqlite3_column_int64(stmt, i);
json_row.insert(column_names[i], content);
break;
}
case SQLITE_FLOAT: {
double content = sqlite3_column_double(stmt, i);
json_row.insert(column_names[i], content);
break;
}
case SQLITE_NULL: {
json_row.insert(column_names[i], QJsonValue());
break;
}
case SQLITE_TEXT:
case SQLITE_BLOB: {
QString content = QString::fromUtf8(
(const char*)sqlite3_column_blob(stmt, i),
sqlite3_column_bytes(stmt, i));
json_row.insert(column_names[i], content);
break;
}
}
}
json_table.push_back(json_row);