Struct Struct 

pub struct Struct<T: SqlStruct> {
    pub flavor: Flavor,
    /* private fields */
}

Fields

flavor: Flavor

Implementations

impl<T: SqlStruct> Struct<T>

pub fn new() -> Self

pub fn with_field_mapper(&self, mapper: FieldMapperFunc) -> Self

WithFieldMapper：返回 shadow copy，并覆盖当前 Struct 的 mapper（对齐 go Struct.WithFieldMapper）。

• 传入 identity_mapper() 等价于 go 的 WithFieldMapper(nil)。

pub fn for_flavor(&self, flavor: Flavor) -> Self

ForFlavor：返回 shadow copy（对齐 go Struct.For），不修改原对象。

pub fn with_tag(&self, tags: impl IntoIterator<Item = &'static str>) -> Self

WithTag：返回 shadow copy（对齐 go Struct.WithTag），不修改原对象。

pub fn without_tag(&self, tags: impl IntoIterator<Item = &'static str>) -> Self

WithoutTag：返回 shadow copy（对齐 go Struct.WithoutTag），不修改原对象。

pub fn columns(&self) -> Vec<String>

Columns：对齐 go-sqlbuilder Struct.Columns()（返回 ForWrite 的未 quote 列名）。

pub fn columns_for_tag(&self, tag: &str) -> Option<Vec<String>>

ColumnsForTag：对齐 go-sqlbuilder Struct.ColumnsForTag(tag)。

• 如果 tag 不存在，返回 None（对齐 go 返回 nil）

pub fn values(&self, v: &T) -> Vec<Arg>

Values：对齐 go-sqlbuilder Struct.Values()（返回 ForWrite 的值，顺序与 columns() 一致）。

pub fn values_for_tag(&self, tag: &str, v: &T) -> Option<Vec<Arg>>

ValuesForTag：对齐 go-sqlbuilder Struct.ValuesForTag(tag, value)。

• 如果 tag 不存在，返回 None（对齐 go 返回 nil）

pub fn foreach_read(&self, trans: impl FnMut(&str, bool, &FieldMeta))

ForeachRead：对齐 go-sqlbuilder Struct.ForeachRead。

• dbtag：等价 go 的 sf.DBTag（可能为空字符串）
• is_quoted：等价 go 的 sf.IsQuoted
• field_meta：Rust 侧提供的字段元信息（替代 go 的 reflect.StructField）

pub fn foreach_write(&self, trans: impl FnMut(&str, bool, &FieldMeta))

ForeachWrite：对齐 go-sqlbuilder Struct.ForeachWrite。

pub fn addr<'a>(&self, st: &'a mut T) -> Vec<ScanCell<'a>>

Addr：对齐 go-sqlbuilder Struct.Addr(st)（返回 ForRead 的“写入目标”列表）。

pub fn addr_for_tag<'a>( &self, tag: &str, st: &'a mut T, ) -> Option<Vec<ScanCell<'a>>>

AddrForTag：对齐 go-sqlbuilder Struct.AddrForTag(tag, st)。 tag 不存在返回 None（对齐 go 返回 nil）。

pub fn addr_with_cols<'a>( &self, cols: &[&str], st: &'a mut T, ) -> Option<Vec<ScanCell<'a>>>

AddrWithCols：对齐 go-sqlbuilder Struct.AddrWithCols(cols, st)。 如果 cols 中任一列找不到，返回 None（对齐 go 返回 nil）。

pub fn select_from(&self, table: &str) -> SelectBuilder

pub fn select_from_for_tag(&self, table: &str, tag: &str) -> SelectBuilder

SelectFromForTag：对齐 go-sqlbuilder SelectFromForTag(table, tag)（deprecated）。

pub fn update(&self, table: &str, value: &T) -> UpdateBuilder

pub fn update_for_tag(&self, table: &str, tag: &str, value: &T) -> UpdateBuilder

UpdateForTag：对齐 go-sqlbuilder UpdateForTag(table, tag, value)（deprecated）。

pub fn delete_from(&self, table: &str) -> DeleteBuilder

pub fn insert_into<'a>( &self, table: &str, rows: impl IntoIterator<Item = &'a T>, ) -> InsertBuilder

where T: 'a,

pub fn insert_into_for_tag<'a>( &self, table: &str, tag: &str, rows: impl IntoIterator<Item = &'a T>, ) -> InsertBuilder

where T: 'a,

InsertIntoForTag：对齐 go-sqlbuilder InsertIntoForTag(table, tag, value...)（deprecated）。

pub fn insert_ignore_into_for_tag<'a>( &self, table: &str, tag: &str, rows: impl IntoIterator<Item = &'a T>, ) -> InsertBuilder

where T: 'a,

pub fn replace_into_for_tag<'a>( &self, table: &str, tag: &str, rows: impl IntoIterator<Item = &'a T>, ) -> InsertBuilder

where T: 'a,

pub fn insert_into_any<'a>( &self, table: &str, values: impl IntoIterator<Item = &'a dyn Any>, ) -> InsertBuilder

where T: 'static,

InsertIntoAny：对齐 go InsertInto(table, value ...interface{}) 的“忽略非预期类型”语义。

pub fn insert_ignore_into_any<'a>( &self, table: &str, values: impl IntoIterator<Item = &'a dyn Any>, ) -> InsertBuilder

where T: 'static,

pub fn replace_into_any<'a>( &self, table: &str, values: impl IntoIterator<Item = &'a dyn Any>, ) -> InsertBuilder

where T: 'static,

pub fn insert_into_for_tag_any<'a>( &self, table: &str, tag: &str, values: impl IntoIterator<Item = &'a dyn Any>, ) -> InsertBuilder

where T: 'static,

pub fn insert_ignore_into_for_tag_any<'a>( &self, table: &str, tag: &str, values: impl IntoIterator<Item = &'a dyn Any>, ) -> InsertBuilder

where T: 'static,

pub fn replace_into_for_tag_any<'a>( &self, table: &str, tag: &str, values: impl IntoIterator<Item = &'a dyn Any>, ) -> InsertBuilder

where T: 'static,

pub fn insert_ignore_into<'a>( &self, table: &str, rows: impl IntoIterator<Item = &'a T>, ) -> InsertBuilder

where T: 'a,

pub fn replace_into<'a>( &self, table: &str, rows: impl IntoIterator<Item = &'a T>, ) -> InsertBuilder

where T: 'a,

Trait Implementations

impl<T: SqlStruct> Clone for Struct<T>

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<T: SqlStruct> Debug for Struct<T>

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

Formats the value using the given formatter.

impl<T: SqlStruct> Default for Struct<T>

fn default() -> Self

Returns the “default value” for a type.