Trait libimagentrydatetime::datetime::EntryDate

pub trait EntryDate {
    fn delete_date(&mut self) -> Result<()>;
    fn read_date(&self) -> Result<NaiveDateTime>;
    fn set_date(
        &mut self, 
        d: NaiveDateTime
    ) -> Result<Option<Result<NaiveDateTime>>>;
    fn delete_date_range(&mut self) -> Result<()>;
    fn read_date_range(&self) -> Result<DateTimeRange>;
    fn set_date_range(
        &mut self, 
        start: NaiveDateTime, 
        end: NaiveDateTime
    ) -> Result<Option<Result<DateTimeRange>>>;
}

Required Methods

fn delete_date(&mut self) -> Result<()>

fn read_date(&self) -> Result<NaiveDateTime>

fn set_date(
    &mut self,
    d: NaiveDateTime
) -> Result<Option<Result<NaiveDateTime>>>

fn delete_date_range(&mut self) -> Result<()>

fn read_date_range(&self) -> Result<DateTimeRange>

fn set_date_range(
    &mut self,
    start: NaiveDateTime,
    end: NaiveDateTime
) -> Result<Option<Result<DateTimeRange>>>

Implementations on Foreign Types

impl EntryDate for Entry

fn delete_date(&mut self) -> Result<()>

fn read_date(&self) -> Result<NaiveDateTime>

fn set_date(
    &mut self,
    d: NaiveDateTime
) -> Result<Option<Result<NaiveDateTime>>>

Set a Date for this entry

Return value

This function returns funny things, I know. But I find it more attractive to be explicit what failed when here, instead of beeing nice to the user here.

So here's a list how things are returned:

• Err(_) if the inserting failed
• Ok(None) if the inserting succeeded and did not replace an existing value.
• Ok(Some(Ok(_))) if the inserting succeeded, but replaced an existing value which then got parsed into a NaiveDateTime object
• Ok(Some(Err(_))) if the inserting succeeded, but replaced an existing value which then got parsed into a NaiveDateTime object, where the parsing failed for some reason.

fn delete_date_range(&mut self) -> Result<()>

Deletes the date range

Warning

First deletes the start, then the end. If the first operation fails, this might leave the header in an inconsistent state.

fn read_date_range(&self) -> Result<DateTimeRange>

fn set_date_range(
    &mut self,
    start: NaiveDateTime,
    end: NaiveDateTime
) -> Result<Option<Result<DateTimeRange>>>

Set the date range

Warning

This first sets the start, then the end. If the first operation fails, this might leave the header in an inconsistent state.

Implementors