Hi, Tony, thanks for your reply, OS: win 11 DB: SQLite Unfortunately, QVariant::toByteArray returns size 52(hex 104), QVariant::toString returns size 30
There is data returned by QVariant::toByteArray::toHex Qt data in hex(size 104): 763130492d46c2ab4cc29c7bc2b0efbfbd78c29b29c3ab1e4723dea6efbfbdefbfbdefbfbdefbfbd66c2a275efbfbdefbfbdc4a6 Original value in hex size(68): 763130492d46ab4c9c7bb0e9789b29c3ab1e4723dea6c8e5d2f9b266a275e1fbe4a6 there are some data that is parsed correct but time to time it is broken On Mon, Nov 28, 2022 at 11:17 AM Tony Rietwyk <t...@rightsoft.com.au> wrote: > Hi Yauheni, > > You don't say which type of database you are using? There may be issues > with the database client library altering the blob to UTF8. Though I > would expect the python code using the same client to have the same > problem. > > Assuming that QVariant has the byte array unaltered, then > QVariant.toByteArray().length() should give 34. Using qstrlen, suggests > that you are using QVariant.toString instead. To print the hex you > should just use QVariant.toByteArray().toHex(). > > Hope that helps, > > Tony > > > On 28/11/2022 6:46 pm, Yauheni Pervenenka via Interest wrote: > > Hello, community > > I have faced with issue that qvariant using qstrlen for getting data > > size, but sometimes it returns wrong size especially for BLOB data(if > > there are some special symbols), are there any way to get data correct? > > > > Note: > > Database value 34, python returns correct data size, but > > qvariant::toByteArray returns 52 > > > > Python data and Database data in hex(size > > 68): 763130492d46ab4c9c7bb0e9789b29c3ab1e4723dea6c8e5d2f9b266a275e1fbe4a6 > > > > Qt data in hex(size 104): > > > 763130492d46c2ab4cc29c7bc2b0efbfbd78c29b29c3ab1e4723dea6efbfbdefbfbdefbfbdefbfbd66c2a275efbfbdefbfbdc4a6 > > > > _______________________________________________ > > Interest mailing list > > Interest@qt-project.org > > https://lists.qt-project.org/listinfo/interest > _______________________________________________ > Interest mailing list > Interest@qt-project.org > https://lists.qt-project.org/listinfo/interest >
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