Add SQL time::timezone() function

Related to #1428

lib/src/fnc/mod.rs

@@ -198,6 +198,7 @@ pub fn synchronous(ctx: &Context<'_>, name: &str, args: Vec<Value>) -> Result<Va
 		"time::now" => time::now,
 		"time::round" => time::round,
 		"time::second" => time::second,
+		"time::timezone" => time::timezone,
 		"time::unix" => time::unix,
 		"time::wday" => time::wday,
 		"time::week" => time::week,

lib/src/fnc/script/modules/surrealdb/functions/time.rs

@@ -28,6 +28,7 @@ impl ModuleDef for Package {
 		module.add("now")?;
 		module.add("round")?;
 		module.add("secs")?;
+		module.add("timezone")?;
 		module.add("unix")?;
 		module.add("wday")?;
 		module.add("week")?;
@@ -48,6 +49,7 @@ impl ModuleDef for Package {
 		module.set("now", Func::from(|v: Any| run("time::now", v.0)))?;
 		module.set("round", Func::from(|v: Any| run("time::round", v.0)))?;
 		module.set("secs", Func::from(|v: Any| run("time::secs", v.0)))?;
+		module.set("timezone", Func::from(|v: Any| run("time::timezone", v.0)))?;
 		module.set("unix", Func::from(|v: Any| run("time::unix", v.0)))?;
 		module.set("wday", Func::from(|v: Any| run("time::wday", v.0)))?;
 		module.set("week", Func::from(|v: Any| run("time::week", v.0)))?;
@@ -65,6 +67,7 @@ impl ModuleDef for Package {
 		default.set("now", Func::from(|v: Any| run("time::now", v.0)))?;
 		default.set("round", Func::from(|v: Any| run("time::round", v.0)))?;
 		default.set("secs", Func::from(|v: Any| run("time::secs", v.0)))?;
+		default.set("timezone", Func::from(|v: Any| run("time::timezone", v.0)))?;
 		default.set("unix", Func::from(|v: Any| run("time::unix", v.0)))?;
 		default.set("wday", Func::from(|v: Any| run("time::wday", v.0)))?;
 		default.set("week", Func::from(|v: Any| run("time::week", v.0)))?;

lib/src/fnc/time.rs

@@ -1,9 +1,10 @@
 use crate::err::Error;
 use crate::sql::datetime::Datetime;
 use crate::sql::value::Value;
-use chrono::prelude::*;
+use chrono::offset::TimeZone;
 use chrono::Datelike;
 use chrono::DurationRound;
+use chrono::Local;
 use chrono::Timelike;
 use chrono::Utc;
 
@@ -13,7 +14,6 @@ pub fn day((datetime,): (Option<Value>,)) -> Result<Value, Error> {
 		None => Datetime::default(),
 		Some(_) => return Ok(Value::None),
 	};
-
 	Ok(date.day().into())
 }
 
@@ -76,7 +76,6 @@ pub fn hour((datetime,): (Option<Value>,)) -> Result<Value, Error> {
 		None => Datetime::default(),
 		Some(_) => return Ok(Value::None),
 	};
-
 	Ok(date.hour().into())
 }
 
@@ -86,7 +85,6 @@ pub fn minute((datetime,): (Option<Value>,)) -> Result<Value, Error> {
 		None => Datetime::default(),
 		Some(_) => return Ok(Value::None),
 	};
-
 	Ok(date.minute().into())
 }
 
@@ -96,7 +94,6 @@ pub fn month((datetime,): (Option<Value>,)) -> Result<Value, Error> {
 		None => Datetime::default(),
 		Some(_) => return Ok(Value::None),
 	};
-
 	Ok(date.month().into())
 }
 
@@ -106,7 +103,6 @@ pub fn nano((datetime,): (Option<Value>,)) -> Result<Value, Error> {
 		None => Datetime::default(),
 		Some(_) => return Ok(Value::None),
 	};
-
 	Ok(date.timestamp_nanos().into())
 }
 
@@ -133,17 +129,19 @@ pub fn second((datetime,): (Option<Value>,)) -> Result<Value, Error> {
 		None => Datetime::default(),
 		Some(_) => return Ok(Value::None),
 	};
-
 	Ok(date.second().into())
 }
 
+pub fn timezone(_: ()) -> Result<Value, Error> {
+	Ok(Local::now().offset().to_string().into())
+}
+
 pub fn unix((datetime,): (Option<Value>,)) -> Result<Value, Error> {
 	let date = match datetime {
 		Some(Value::Datetime(v)) => v,
 		None => Datetime::default(),
 		Some(_) => return Ok(Value::None),
 	};
-
 	Ok(date.timestamp().into())
 }
 
@@ -153,7 +151,6 @@ pub fn wday((datetime,): (Option<Value>,)) -> Result<Value, Error> {
 		None => Datetime::default(),
 		Some(_) => return Ok(Value::None),
 	};
-
 	Ok(date.weekday().number_from_monday().into())
 }
 
@@ -163,7 +160,6 @@ pub fn week((datetime,): (Option<Value>,)) -> Result<Value, Error> {
 		None => Datetime::default(),
 		Some(_) => return Ok(Value::None),
 	};
-
 	Ok(date.iso_week().week().into())
 }
 
@@ -173,7 +169,6 @@ pub fn yday((datetime,): (Option<Value>,)) -> Result<Value, Error> {
 		None => Datetime::default(),
 		Some(_) => return Ok(Value::None),
 	};
-
 	Ok(date.ordinal().into())
 }
 
@@ -183,6 +178,5 @@ pub fn year((datetime,): (Option<Value>,)) -> Result<Value, Error> {
 		None => Datetime::default(),
 		Some(_) => return Ok(Value::None),
 	};
-
 	Ok(date.year().into())
 }

lib/src/sql/function.rs

@@ -441,6 +441,7 @@ fn function_time(i: &str) -> IResult<&str, &str> {
 		tag("time::now"),
 		tag("time::round"),
 		tag("time::second"),
+		tag("time::timezone"),
 		tag("time::unix"),
 		tag("time::wday"),
 		tag("time::week"),