Struct libsql_client::Row

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pub struct Row {
    pub values: Vec<Value>,
    pub value_map: HashMap<String, Value>,
}
Expand description

Represents a row returned from the database.

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§values: Vec<Value>§value_map: HashMap<String, Value>

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impl<'a> Row

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pub fn try_get<V: TryFrom<&'a Value, Error = String>>( &'a self, index: usize ) -> Result<V>

Try to get a value by index from this row and convert it to the desired type

Will return an error if the index is invalid or if the value cannot be converted to the desired type

§Examples
let db = libsql_client::SyncClient::in_memory().unwrap();
db.execute("create table example(num integer, str text)").unwrap();
db.execute("insert into example (num, str) values (0, 'zero')").unwrap();
let rs = db.execute("select * from example").unwrap();
let row = &rs.rows[0]; // ResultSet returns array of Rows
let num : usize = row.try_get(0).unwrap();
let text : &str = row.try_get(1).unwrap();
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pub fn try_column<V: TryFrom<&'a Value, Error = String>>( &'a self, col: &str ) -> Result<V>

Try to get a value given a column name from this row and convert it to the desired type

Will return an error if the column name is invalid or if the value cannot be converted to the desired type

§Examples
let db = libsql_client::SyncClient::in_memory().unwrap();
db.execute("create table example(num integer, str text)").unwrap();
db.execute("insert into example (num, str) values (0, 'zero')").unwrap();
let rs = db.execute("select * from example").unwrap();
let row = &rs.rows[0]; // ResultSet returns array of Rows
let num : usize = row.try_column("num").unwrap();
let text : &str = row.try_column("str").unwrap();

Trait Implementations§

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impl Clone for Row

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fn clone(&self) -> Row

Returns a copy 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 Row

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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<'de> Deserialize<'de> for Row

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fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>
where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer. Read more
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impl Serialize for Row

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fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>
where __S: Serializer,

Serialize this value into the given Serde serializer. Read more

Auto Trait Implementations§

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impl RefUnwindSafe for Row

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impl Send for Row

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impl Sync for Row

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impl Unpin for Row

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impl UnwindSafe for Row

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> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> FromRef<T> for T
where T: Clone,

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fn from_ref(input: &T) -> T

Converts to this type from a reference to the input type.
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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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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> IntoRequest<T> for T

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fn into_request(self) -> Request<T>

Wrap the input message T in a tonic::Request
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impl<T> Same for T

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type Output = T

Should always be Self
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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> ToRawKvValue for T
where T: Serialize,

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fn raw_kv_value(&self) -> Result<JsValue, KvError>

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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

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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more
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impl<T> DeserializeOwned for T
where T: for<'de> Deserialize<'de>,