Tag

Struct Tag 

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pub struct Tag { /* private fields */ }
Expand description

A tag from Bear’s database.

Tags in Bear organize notes hierarchically (e.g., “work/projects/bear-query”).

§Nullable Fields

  • name: Tag name. In theory should never be NULL, but we handle it defensively. A tag without a name would be unusual but possible in a corrupted database.
  • modified: Timestamp of last modification. May be None for tags that have never been explicitly modified.

§Example

let db = BearDb::new()?;
let tags = db.tags()?;

for tag in tags.iter() {
    let name = tag.name().unwrap_or("[unnamed]");
    match tag.modified() {
        Some(modified) => println!("Tag '{}' modified: {}", name, modified),
        None => println!("Tag '{}' (never modified)", name),
    }
}

Implementations§

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impl Tag

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pub fn id(&self) -> TagId

Returns the tag’s primary key identifier.

This is always present (never NULL) and stable across the tag’s lifetime.

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pub fn name(&self) -> Option<&str>

Returns the tag’s name, if present.

Returns None in the rare case of a tag without a name (corrupted data).

Tag names can be hierarchical, using / as separator:

  • "work" - top-level tag
  • "work/projects" - nested tag
  • "work/projects/bear-query" - deeply nested tag
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pub fn modified(&self) -> Option<OffsetDateTime>

Returns the timestamp of the tag’s last modification, if available.

Returns None for tags that have never been explicitly modified.

Trait Implementations§

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impl Clone for Tag

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fn clone(&self) -> Tag

Returns a duplicate of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for Tag

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more

Auto Trait Implementations§

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impl Freeze for Tag

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impl RefUnwindSafe for Tag

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impl Send for Tag

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impl Sync for Tag

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impl Unpin for Tag

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impl UnwindSafe for Tag

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<T> DynClone for T
where T: Clone,

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fn __clone_box(&self, _: Private) -> *mut ()

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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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impl<T> Key for T
where T: Clone,

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fn align() -> usize

The alignment necessary for the key. Must return a power of two.
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fn size(&self) -> usize

The size of the key in bytes.
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unsafe fn init(&self, ptr: *mut u8)

Initialize the key in the given memory location. Read more
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unsafe fn get<'a>(ptr: *const u8) -> &'a T

Get a reference to the key from the given memory location. Read more
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unsafe fn drop_in_place(ptr: *mut u8)

Drop the key in place. Read more
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impl<T> Pointable for T

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const ALIGN: usize

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V