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Attempt to read timezones from chrono-tz

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Bradlee Speice
2019-11-13 23:12:47 -05:00
parent c310cbaa0d
commit 142712900f
4 changed files with 36 additions and 5 deletions
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19
src/lib.rs
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@ -73,6 +73,7 @@
extern crate lazy_static;
extern crate chrono;
extern crate chrono_tz;
extern crate num_traits;
extern crate rust_decimal;
@ -83,7 +84,10 @@ use chrono::Local;
use chrono::NaiveDate;
use chrono::NaiveDateTime;
use chrono::NaiveTime;
use chrono::Offset;
use chrono::Timelike;
use chrono::TimeZone;
use chrono_tz::Tz;
use num_traits::cast::ToPrimitive;
use rust_decimal::Decimal;
use rust_decimal::Error as DecimalError;
@ -948,11 +952,10 @@ impl Parser {
fn build_tzaware(
&self,
_dt: &NaiveDateTime,
dt: &NaiveDateTime,
res: &ParsingResult,
tzinfos: &HashMap<String, i32>,
) -> ParseResult<Option<FixedOffset>> {
// TODO: Actual timezone support
if let Some(offset) = res.tzoffset {
Ok(Some(FixedOffset::east(offset)))
} else if res.tzoffset == None
@ -965,9 +968,15 @@ impl Parser {
*tzinfos.get(res.tzname.as_ref().unwrap()).unwrap(),
)))
} else if res.tzname.is_some() {
// TODO: Dateutil issues a warning/deprecation notice here. Should we force the issue?
println!("tzname {} identified but not understood. Ignoring for the time being, but behavior is subject to change.", res.tzname.as_ref().unwrap());
Ok(None)
let tzname = res.tzname.as_ref().unwrap();
let tz: Result<Tz, String> = tzname.parse();
if tz.is_ok() {
let offset = tz.unwrap().offset_from_local_datetime(dt).unwrap().fix();
Ok(Some(offset))
} else {
println!("tzname {} identified but not understood ({}). Ignoring for the time being, but behavior is subject to change.", tzname, tz.unwrap_err());
Ok(None)
}
} else {
Err(ParseError::TimezoneUnsupported)
}