thread '<unnamed>' panicked at 'called Option::unwrap() on a None value',

[joe-at-startupmedia]

Versions

rustc 1.35.0 (3c235d560 2019-05-20)
diesel = { version = "1.4.2", features = ["postgres", "uuidv07", "r2d2", "chrono"] }
inux localhost.localdomain 3.10.0-693.17.1.el7.x86_64 #1 SMP Thu Jan 25 20:13:58 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux

What are you trying to accomplish?

I am trying to populate a table with nullable values and retrieve the record from the tables without panics or errors due to the columns being null

What is the expected output?

To unwrap a model with nullable values of None

What is the actual output?

thread '' panicked at 'called Option::unwrap() on a None value',

Steps to reproduce

I have the following model specification:

#[derive(Debug, Serialize, Deserialize, Queryable, Insertable, AsChangeset)]
#[table_name = "refresh_tokens"]
#[changeset_options(treat_none_as_null = "true")]
pub struct RefreshToken {
    pub id: Uuid,
    pub user_id: Uuid,
    pub token: String,
    pub created_at: NaiveDateTime,
    pub expires_at: NaiveDateTime,
    pub salt: String,
    pub renewed_on: Option<NaiveDateTime>,
    pub renewed_with: Option<Uuid>,
}

I've add AsChangeset derivation annotation along with #[changeset_options(treat_none_as_null = "true")]

In an attempt to solve the following error:

thread '<unnamed>' panicked at 'called `Option::unwrap()` on a `None` value', src/libcore/option.rs:345:21
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.
stack backtrace:
   0: std::sys::unix::backtrace::tracing::imp::unwind_backtrace
             at src/libstd/sys/unix/backtrace/tracing/gcc_s.rs:39
   1: std::sys_common::backtrace::_print
             at src/libstd/sys_common/backtrace.rs:71
   2: std::panicking::default_hook::{{closure}}
             at src/libstd/sys_common/backtrace.rs:59
             at src/libstd/panicking.rs:197
   3: std::panicking::default_hook
             at src/libstd/panicking.rs:211
   4: std::panicking::rust_panic_with_hook
             at src/libstd/panicking.rs:474
   5: std::panicking::continue_panic_fmt
             at src/libstd/panicking.rs:381
   6: rust_begin_unwind
             at src/libstd/panicking.rs:308
   7: core::panicking::panic_fmt
             at src/libcore/panicking.rs:85
   8: core::panicking::panic
             at src/libcore/panicking.rs:49
   9: core::option::Option<T>::unwrap
             at /rustc/3c235d5600393dfe6c36eeed34042efad8d4f26e/src/libcore/macros.rs:12
  10: user_api::refreshtoken_handler::<impl actix::handler::Handler<user_api::refreshtoken_handler::RefreshRenewRequest> for user_api::models::DbExecutor>::handle
             at src/refreshtoken_handler.rs:77
  11: <actix::sync::SyncContextEnvelope<A,M> as actix::address::envelope::EnvelopeProxy>::handle
             at /home/vagrant/.cargo/registry/src/github.com-1ecc6299db9ec823/actix-0.8.3/src/sync.rs:353
  12: <actix::address::envelope::Envelope<A> as actix::address::envelope::EnvelopeProxy>::handle
             at /home/vagrant/.cargo/registry/src/github.com-1ecc6299db9ec823/actix-0.8.3/src/address/envelope.rs:71
  13: actix::sync::SyncContext<A>::run
             at /home/vagrant/.cargo/registry/src/github.com-1ecc6299db9ec823/actix-0.8.3/src/sync.rs:251
  14: actix::sync::SyncArbiter<A>::start::{{closure}}
             at /home/vagrant/.cargo/registry/src/github.com-1ecc6299db9ec823/actix-0.8.3/src/sync.rs:122

Checklist

• I have already looked over the issue tracker for similar issues.

Seems similar to #885

[joe-at-startupmedia]

The issue was that I was unwrapping an empty result of None. Had nothing to do with the columns themselves being None.