Struct Date 

pub struct Date {
    pub year: i32,
    pub month: i32,
    pub day: i32,
}

Available on crate feature date only.

Represents a whole or partial calendar date, such as a birthday.

The time of day and time zone are either specified elsewhere or are insignificant. The date is relative to the Gregorian Calendar. This can represent one of the following:

• A full date, with non-zero year, month, and day values
• A month and day value, with a zero year, such as an anniversary
• A year on its own, with zero month and day values
• A year and month value, with a zero day, such as a credit card expiration date

Related types are [google.type.TimeOfDay][google.type.TimeOfDay] and google.protobuf.Timestamp.

Fields

year: i32

Year of the date. Must be from 1 to 9999, or 0 to specify a date without a year.

month: i32

Month of a year. Must be from 1 to 12, or 0 to specify a year without a month and day.

day: i32

Day of a month. Must be from 1 to 31 and valid for the year and month, or 0 to specify a year by itself or a year and month where the day isn’t significant.

Implementations

impl Date

pub fn to_naive_date(self) -> Result<NaiveDate, DateError>

Available on crate feature chrono only.

Converts this Date to chrono::NaiveDate. It fails if the year, month or day are set to zero.

pub fn today() -> Self

Available on crate feature chrono and (crate features std or chrono-wasm) only.

Returns the current date.

impl Date

pub fn new(year: i32, month: i32, day: i32) -> Result<Self, DateError>

Creates a new Date instance with validation. Allows year: 0, month: 0, day: 0 as special cases described in the proto spec. Returns an error if any component is out of range or date is invalid (e.g., February 30th).

pub const fn kind(&self) -> DateKind

Returns the kind of values combination for this Date

pub fn is_valid(&self) -> bool

Checks if this Date instance represents a valid date according to its constraints.

pub const fn has_year(&self) -> bool

pub const fn is_year_only(&self) -> bool

Returns true if this Date only indicates a year.

pub const fn is_year_and_month(&self) -> bool

Returns true if this Date only indicates a year and a month (i.e. for a credit card expiration date).

pub const fn is_month_and_day(&self) -> bool

Returns true if this Date only indicates a month and a day, with no specific year.

Trait Implementations

impl<'__expr> AsExpression<Date> for &'__expr Date

type Expression = Bound<Date, &'__expr Date>

The expression being returned

fn as_expression(self) -> <Self as AsExpression<Date>>::Expression

Perform the conversion

impl AsExpression<Date> for Date

type Expression = Bound<Date, Date>

The expression being returned

fn as_expression(self) -> <Self as AsExpression<Date>>::Expression

Perform the conversion

impl<'__expr> AsExpression<Nullable<Date>> for &'__expr Date

type Expression = Bound<Nullable<Date>, &'__expr Date>

The expression being returned

fn as_expression(self) -> <Self as AsExpression<Nullable<Date>>>::Expression

Perform the conversion

impl AsExpression<Nullable<Date>> for Date

type Expression = Bound<Nullable<Date>, Date>

The expression being returned

fn as_expression(self) -> <Self as AsExpression<Nullable<Date>>>::Expression

Perform the conversion

impl Clone for Date

fn clone(&self) -> Date

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Date

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

Formats the value using the given formatter.

impl Default for Date

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for Date

Available on crate feature serde only.

fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>

where D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for Date

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

Formats the value using the given formatter.

impl From<Date> for Value

Available on crate feature cel only.

fn from(value: Date) -> Self

Converts to this type from the input type.

impl From<NaiveDate> for Date

Available on crate feature chrono only.

fn from(naive_date: NaiveDate) -> Self

Converts to this type from the input type.

impl FromSql<Date, Mysql> for Date

Available on crate feature diesel-mysql and (crate features diesel-postgres or diesel-sqlite or diesel-mysql) only.

fn from_sql(bytes: MysqlValue<'_>) -> DeserializeResult<Self>

See the trait documentation.

fn from_nullable_sql( bytes: Option<<DB as Backend>::RawValue<'_>>, ) -> Result<Self, Box<dyn Error + Sync + Send>>

A specialized variant of from_sql for handling null values.

impl FromSql<Date, Pg> for Date

Available on crate feature diesel-postgres and (crate features diesel-postgres or diesel-sqlite or diesel-mysql) only.

fn from_sql(bytes: PgValue<'_>) -> DeserializeResult<Self>

See the trait documentation.

fn from_nullable_sql( bytes: Option<<DB as Backend>::RawValue<'_>>, ) -> Result<Self, Box<dyn Error + Sync + Send>>

A specialized variant of from_sql for handling null values.

impl FromSql<Date, Sqlite> for Date

Available on crate feature diesel-sqlite and (crate features diesel-postgres or diesel-sqlite or diesel-mysql) only.

fn from_sql(value: <Sqlite as Backend>::RawValue<'_>) -> DeserializeResult<Self>

See the trait documentation.

fn from_nullable_sql( bytes: Option<<DB as Backend>::RawValue<'_>>, ) -> Result<Self, Box<dyn Error + Sync + Send>>

A specialized variant of from_sql for handling null values.

impl Hash for Date

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Message for Date

fn encoded_len(&self) -> usize

Returns the encoded length of the message without a length delimiter.

fn clear(&mut self)

Clears the message, resetting all fields to their default.

fn encode(&self, buf: &mut impl BufMut) -> Result<(), EncodeError>

where Self: Sized,

Encodes the message to a buffer.

fn encode_to_vec(&self) -> Vec<u8>

where Self: Sized,

Encodes the message to a newly allocated buffer.

fn encode_length_delimited( &self, buf: &mut impl BufMut, ) -> Result<(), EncodeError>

where Self: Sized,

Encodes the message with a length-delimiter to a buffer.

fn encode_length_delimited_to_vec(&self) -> Vec<u8>

where Self: Sized,

Encodes the message with a length-delimiter to a newly allocated buffer.

fn decode(buf: impl Buf) -> Result<Self, DecodeError>

where Self: Default,

Decodes an instance of the message from a buffer.

fn decode_length_delimited(buf: impl Buf) -> Result<Self, DecodeError>

where Self: Default,

Decodes a length-delimited instance of the message from the buffer.

fn merge(&mut self, buf: impl Buf) -> Result<(), DecodeError>

where Self: Sized,

Decodes an instance of the message from a buffer, and merges it into self.

fn merge_length_delimited(&mut self, buf: impl Buf) -> Result<(), DecodeError>

where Self: Sized,

Decodes a length-delimited instance of the message from buffer, and merges it into self.

impl PartialEq for Date

fn eq(&self, other: &Date) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for Date

fn partial_cmp(&self, other: &Self) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl QueryId for Date

const HAS_STATIC_QUERY_ID: bool = true

Can the SQL generated by Self be uniquely identified by its type?

type QueryId = Date

A type which uniquely represents Self in a SQL query.

fn query_id() -> Option<TypeId>

Returns the type id of Self::QueryId if Self::HAS_STATIC_QUERY_ID. Returns None otherwise.

impl<__DB, __ST> Queryable<__ST, __DB> for Date

where __DB: Backend, __ST: SingleValue, Self: FromSql<__ST, __DB>,

type Row = Date

The Rust type you’d like to map from.

fn build(row: Self) -> Result<Self>

Construct an instance of this type

impl Serialize for Date

Available on crate feature serde only.

fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>

where S: Serializer,

Serialize this value into the given Serde serializer.

impl ToSql<Date, Mysql> for Date

Available on crate feature diesel-mysql and (crate features diesel-postgres or diesel-sqlite or diesel-mysql) only.

fn to_sql<'b>(&'b self, out: &mut Output<'b, '_, Mysql>) -> SerializeResult

See the trait documentation.

impl ToSql<Date, Pg> for Date

Available on crate feature diesel-postgres and (crate features diesel-postgres or diesel-sqlite or diesel-mysql) only.

fn to_sql<'b>(&'b self, out: &mut Output<'b, '_, Pg>) -> SerializeResult

See the trait documentation.

impl ToSql<Date, Sqlite> for Date

Available on crate feature diesel-sqlite and (crate features diesel-postgres or diesel-sqlite or diesel-mysql) only.

fn to_sql<'b>(&'b self, out: &mut Output<'b, '_, Sqlite>) -> SerializeResult

See the trait documentation.

impl<__DB> ToSql<Nullable<Date>, __DB> for Date

where __DB: Backend, Self: ToSql<Date, __DB>,

fn to_sql<'__b>(&'__b self, out: &mut Output<'__b, '_, __DB>) -> Result

See the trait documentation.

impl TryFrom<Date> for NaiveDate

Available on crate feature chrono only.

type Error = DateError

The type returned in the event of a conversion error.

fn try_from(date: Date) -> Result<Self, Self::Error>

Performs the conversion.

impl Copy for Date

impl Eq for Date

impl StructuralPartialEq for Date