pub trait FromSql<'a>: Sized {
// Required method
fn from_sql(s: &'a [u8]) -> IResult<'a, Self>;
}Expand description
Trait for converting from the SQL syntax for a simple type
(anything other than a tuple) to a Rust type,
which can borrow from the string or not.
Used by schemas::FromSqlTuple.
Required Methods§
Dyn Compatibility§
This trait is not dyn compatible.
In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.
Implementations on Foreign Types§
Source§impl<'a> FromSql<'a> for &'a str
Used for types represented as strings without escape sequences. For instance,
Timestamps matches the regex ^[0-9: -]+$
and thus never has any escape sequences.
impl<'a> FromSql<'a> for &'a str
Used for types represented as strings without escape sequences. For instance,
Timestamps matches the regex ^[0-9: -]+$
and thus never has any escape sequences.
Source§impl<'a> FromSql<'a> for f32
Matches a float literal with recognize_float and parses it as a f32.
impl<'a> FromSql<'a> for f32
Matches a float literal with recognize_float and parses it as a f32.
Source§impl<'a> FromSql<'a> for f64
Matches a float literal with recognize_float and parses it as a f64.
impl<'a> FromSql<'a> for f64
Matches a float literal with recognize_float and parses it as a f64.
Source§impl<'a> FromSql<'a> for String
Use this for string types that require unescaping and are guaranteed
to be valid UTF-8, like page titles.
impl<'a> FromSql<'a> for String
Use this for string types that require unescaping and are guaranteed to be valid UTF-8, like page titles.
Source§impl<'a> FromSql<'a> for Vec<u8>
Used for “strings” that sometimes contain invalid UTF-8, like the
cl_sortkey field in the categorylinks table, which is truncated to 230
bits, sometimes in the middle of a UTF-8 sequence.
impl<'a> FromSql<'a> for Vec<u8>
Used for “strings” that sometimes contain invalid UTF-8, like the
cl_sortkey field in the categorylinks table, which is truncated to 230
bits, sometimes in the middle of a UTF-8 sequence.
Implementors§
impl<'a> FromSql<'a> for ContentModel<'a>
impl<'a> FromSql<'a> for MajorMime<'a>
impl<'a> FromSql<'a> for MediaType<'a>
impl<'a> FromSql<'a> for PageAction<'a>
impl<'a> FromSql<'a> for PageType
impl<'a> FromSql<'a> for ProtectionLevel<'a>
impl<'a> FromSql<'a> for MinorMime<'a>
impl<'a> FromSql<'a> for NotNan<f32>
Parses an f32 and wraps it with NotNan::new_unchecked.
§Safety
This will never accidentally wrap a NaN because nom’s recognize_float doesn’t include a representation of NaN.
impl<'a> FromSql<'a> for NotNan<f64>
Parses an f64 and wraps it with NotNan::new_unchecked.
§Safety
This will never accidentally wrap a NaN because nom’s recognize_float doesn’t include a representation of NaN.