Struct InMemoryRepository 

pub struct InMemoryRepository<E>
where
    E: Clone + Send + Sync + 'static,
{ /* private fields */ }

内存仓储实现

使用 Vec<E> 存储实体，主键通过 key_of 提取。 适合单元测试、原型开发、无数据库场景。

Implementations

impl<E> InMemoryRepository<E>

where E: Clone + Send + Sync + 'static,

pub fn new() -> InMemoryRepository<E>

创建空仓储

pub fn from_vec(items: Vec<E>) -> InMemoryRepository<E>

从已有集合创建

pub fn len(&self) -> usize

当前存储条数

pub fn is_empty(&self) -> bool

是否为空

pub fn clear(&self)

清空

Trait Implementations

impl<E> Default for InMemoryRepository<E>

where E: Clone + Send + Sync + 'static,

fn default() -> InMemoryRepository<E>

Returns the “default value” for a type.

impl<E> Repository<E> for InMemoryRepository<E>

where E: Clone + Send + Sync + 'static + EntityAttributes,

InMemoryRepository 的 EntityAttributes-based 实现

type Key = Value

主键类型

fn key_of(&self, entity: &E) -> <InMemoryRepository<E> as Repository<E>>::Key

提取实体的主键

fn find_by_id( &self, key: &<InMemoryRepository<E> as Repository<E>>::Key, ) -> Result<Option<E>, RepositoryError>

按主键查找

fn find_all(&self) -> Result<Vec<E>, RepositoryError>

查询所有

fn find_by( &self, conditions: &[WhereCondition], ) -> Result<Vec<E>, RepositoryError>

按条件查询

fn save(&self, entity: E) -> Result<E, RepositoryError>

保存（INSERT 或 UPDATE）

fn delete( &self, key: &<InMemoryRepository<E> as Repository<E>>::Key, ) -> Result<usize, RepositoryError>

按主键删除

fn count(&self) -> Result<u64, RepositoryError>

总数

fn find_one_by( &self, conditions: &[WhereCondition], ) -> Result<Option<E>, RepositoryError>

按条件查询单条

fn save_many(&self, entities: Vec<E>) -> Result<Vec<E>, RepositoryError>

批量保存

fn batch_update( &self, entities: Vec<E>, ) -> Result<BatchUpdateResult<E>, RepositoryError>

批量更新（S-1：SeaORM 对标短板补全）

fn delete_by( &self, conditions: &[WhereCondition], ) -> Result<usize, RepositoryError>

按条件删除

fn count_by( &self, conditions: &[WhereCondition], ) -> Result<u64, RepositoryError>

按条件计数

fn exists(&self, key: &Self::Key) -> Result<bool, RepositoryError>

主键是否存在

fn paginate( &self, page: u64, page_size: u64, ) -> Result<PageResult<E>, RepositoryError>

where E: Clone,

分页查询

fn paginate_by( &self, conditions: &[WhereCondition], page: u64, page_size: u64, ) -> Result<PageResult<E>, RepositoryError>

where E: Clone,

按条件分页查询

fn find_by_with_or_filter( &self, and: &[WhereCondition], or_filter: &[WhereCondition], ) -> Result<Vec<E>, RepositoryError>

where E: Clone + EntityAttributes,

按 AND 条件查询，并对结果应用额外的 OR 过滤组