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QueryOptions

Struct QueryOptions 

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pub struct QueryOptions {
    pub limit: Option<u32>,
    pub skip: Option<u32>,
    pub order: Vec<(String, SortDirection)>,
    pub keys: Option<Vec<String>>,
    pub case_insensitive: bool,
}
Expand description

Everything about a read that is not a constraint.

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§limit: Option<u32>§skip: Option<u32>§order: Vec<(String, SortDirection)>§keys: Option<Vec<String>>

Projection. None means every field; Some is the explicit list.

Upstream converts excludeKeys into keys before it reaches storage, so an adapter only ever sees the positive form.

§case_insensitive: bool

Compare strings under upstream’s case-insensitive collation rather than byte for byte.

{caseInsensitive: true} (MongoStorageAdapter.js:723, :801-803), which resolves to {locale: "en_US", strength: 2}. Used by the _User username and email uniqueness checks and by nothing else, because it is the only place upstream asks for it.

A case-folding regex is not a substitute and the difference is not academic. Strength 2 normalizes as well as folding case, so a precomposed Café and a decomposed Café are one key to the collation and two distinct byte strings to any regex, which means a regex admits identities upstream treats as duplicates. It does not fold diacritics: Café and Cafe remain different identities under it.

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impl QueryOptions

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pub fn parse_order(order: &str) -> Vec<(String, SortDirection)>

Parse Parse’s order parameter: comma-separated keys, - prefix for descending.

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impl Clone for QueryOptions

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fn clone(&self) -> QueryOptions

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

fn clone_from(&mut self, source: &Self)

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

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

Formats the value using the given formatter. Read more
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impl Default for QueryOptions

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fn default() -> Self

Returns the “default value” for a type. Read more

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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<ST, DT> CastableFrom<ST, Initialized, Initialized> for DT
where ST: ?Sized, DT: ?Sized,

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impl<ST, DT> CastableFrom<ST, Uninit, Uninit> for DT
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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> From<T> for T

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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> Read<Exclusive, BecauseExclusive> for T
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type Owned = T

The resulting type after obtaining ownership.
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type Error = Infallible

The type returned in the event of a conversion error.
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type Error = <U as TryFrom<T>>::Error

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