rbdc_mysql/types/
date.rs

1use crate::types::{Decode, Encode};
2use crate::value::{MySqlValue, MySqlValueFormat};
3use byteorder::{ByteOrder, LittleEndian};
4use rbdc::date::Date;
5use rbdc::Error;
6use std::str::FromStr;
7
8impl Encode for Date {
9    fn encode(self, buf: &mut Vec<u8>) -> Result<usize, Error> {
10        buf.push(4);
11        //u16:  MySQL supports years from 1000 - 9999
12        let year = &(self.0.year as u16).to_le_bytes();
13        buf.extend_from_slice(year);
14        buf.push(self.0.mon as u8);
15        buf.push(self.0.day as u8);
16        Ok(4)
17    }
18}
19
20impl Decode for Date {
21    fn decode(value: MySqlValue) -> Result<Self, Error> {
22        Ok(Date(match value.format() {
23            MySqlValueFormat::Text => {
24                fastdate::Date::from_str(value.as_str()?).map_err(|e| Error::from(e.to_string()))?
25            }
26            MySqlValueFormat::Binary => {
27                let buf = value.as_bytes()?;
28                //let len = buf[0];
29                decode_date_buf(&buf[1..])?
30            }
31        }))
32    }
33}
34
35pub fn decode_date_buf(buf: &[u8]) -> Result<fastdate::Date, Error> {
36    if buf.is_empty() {
37        // zero buffer means a zero date (null)
38        return Ok(fastdate::Date {
39            day: 0,
40            mon: 0,
41            year: 0,
42        });
43    }
44    Ok(fastdate::Date {
45        day: buf[3],
46        mon: buf[2],
47        year: LittleEndian::read_u16(buf) as i32,
48    })
49}
rbdc_mysql/types/date.rs

rbdc_mysql/types/
date.rs
