fixed accessor

examples/date_time_field.rs

@@ -54,7 +54,7 @@ fn main() -> tantivy::Result<()> {
         for (_score, doc_address) in count_docs {
             let retrieved_doc = searcher.doc(doc_address)?;
             assert!(matches!(retrieved_doc.get_first(occurred_at),
-                Some(Value::DateTime(dt)) if dt.precision == DateTimePrecision::Seconds));
+                Some(Value::DateTime(dt)) if dt.get_precision() == DateTimePrecision::Seconds));
             assert_eq!(
                 schema.to_json(&retrieved_doc),
                 r#"{"event_type":["double-click"],"occurred_at":["2022-06-22T13:00:00Z"]}"#

src/schema/date_time.rs

@@ -102,12 +102,22 @@ impl DateTime {
     }
 
     /// Converts to the underlying precise timestamp.
-    /// Seconds, Milliseconds, Microseconds, Nanoseconds.
+    /// TODO: deprecate or remove
     pub const fn into_timestamp(self) -> i64 {
         let Self { timestamp, .. } = self;
         timestamp
     }
 
+    /// Returns to the underlying timestamp.
+    pub fn get_timestamp(&self) -> i64 {
+        self.timestamp
+    }
+
+    /// Returns the underlying timestamp precision.
+    pub fn get_precision(&self) -> DateTimePrecision {
+        self.precision
+    }
+
     /// Convert to UTC `OffsetDateTime`
     pub fn into_utc(self) -> OffsetDateTime {
         let Self {