Comments (4)
You derive your own class from pqxx::notification_receiver
and overload the function call operator to handle a notification in your own way. See test/unit/test_notification.cxx for an example.
It's a pretty old style of design now. I think in libpqxx 8.0 you'll just register a lambda. But this was once the standard way to handle these things, and it's been hard to change.
from libpqxx.
Thank you. Would you point me to an example of the new style, please?
from libpqxx.
Not there yet! I still have to write that, and I'm still unsure what to do about lambda lifetimes to be honest.
It'll be a while before 8.0 comes out. There will be some fairly radical changes.
from libpqxx.
Can we close this ticket now @afpgit ?
from libpqxx.
Related Issues (20)
- Receiving false positive signals through conn.await_notification() HOT 2
- Converting TIMESTAMP datatypes into a std::chrono::time_point HOT 8
- Docs gone since 7.9 HOT 19
- Error building a project with the library HOT 8
- Building with bazel error: "ar: libdeps specified more than once" or "undefined reference to PQ" HOT 7
- Make of libpqxx on Red Hat Enterprise Linux 8.8 fails HOT 6
- PQXX_DECLARE_ENUM_CONVERSION issues HOT 15
- G++ Vcpkg Debian Docker image linker errors HOT 18
- Query streaming doesn't compile anymore HOT 3
- Can't initialize zview from string_view HOT 2
- Missing cast opportunity HOT 17
- cmake will take the given lib name and it changes to "-l{libname}" and linker will search using "-l{libname}" HOT 7
- `RETURNING` from a `stream_to` HOT 3
- Failure on streaming a list of empty strings HOT 6
- Conversion of TEXT[] to std::vector<std::string>. HOT 4
- error C2039: 'converts_from_string': is not a member of 'pqxx::string_traits<pgvector::Vector>' HOT 8
- Undefined references while compiling project HOT 17
- Static linking is not working, C++20, libpq REL_16_2, HOT 11
- Can I use stream_to to insert multiple records while one field is Postgis Geometry type? HOT 5
- std::optional<std::chrono::year_month_day> to DATE error if optional is empty HOT 4
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from libpqxx.