Files
nj/crates/erp-workflow/src/service/definition_service.rs
iven c539e6fd83 feat: initialize Nuanji (Warm Notes) project
- Base platform from base.git (ERP base: auth, core, config, message, workflow, plugin)
- Created erp-diary module skeleton (lib.rs, dto.rs, error.rs, event.rs, state.rs)
- Integrated erp-diary into workspace and erp-server
- Added DiaryModule registration in main.rs
- Added DiaryState FromRef in state.rs
- Diary routes mounted (empty routes, ready for implementation)
- Product design spec v1.2 preserved in docs/
- Implementation plan preserved in plans/

Cargo check: OK
Cargo test: OK (78+ base tests passing)
2026-05-31 20:52:19 +08:00

418 lines
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Rust
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use chrono::Utc;
use sea_orm::{ActiveModelTrait, ColumnTrait, EntityTrait, PaginatorTrait, QueryFilter, Set};
use uuid::Uuid;
use crate::dto::{CreateProcessDefinitionReq, ProcessDefinitionResp, UpdateProcessDefinitionReq};
use crate::engine::parser;
use crate::entity::process_definition;
use crate::error::{WorkflowError, WorkflowResult};
use erp_core::audit::AuditLog;
use erp_core::audit_service;
use erp_core::error::check_version;
use erp_core::events::EventBus;
use erp_core::types::Pagination;
/// 流程定义 CRUD 服务。
pub struct DefinitionService;
impl DefinitionService {
/// 分页查询流程定义列表。
pub async fn list(
tenant_id: Uuid,
pagination: &Pagination,
db: &sea_orm::DatabaseConnection,
) -> WorkflowResult<(Vec<ProcessDefinitionResp>, u64)> {
let paginator = process_definition::Entity::find()
.filter(process_definition::Column::TenantId.eq(tenant_id))
.filter(process_definition::Column::DeletedAt.is_null())
.paginate(db, pagination.limit());
let total = paginator
.num_items()
.await
.map_err(|e| WorkflowError::Validation(e.to_string()))?;
let page_index = pagination.page.unwrap_or(1).saturating_sub(1);
let models = paginator
.fetch_page(page_index)
.await
.map_err(|e| WorkflowError::Validation(e.to_string()))?;
let resps: Vec<ProcessDefinitionResp> = models.iter().map(Self::model_to_resp).collect();
Ok((resps, total))
}
/// 获取单个流程定义。
pub async fn get_by_id(
id: Uuid,
tenant_id: Uuid,
db: &sea_orm::DatabaseConnection,
) -> WorkflowResult<ProcessDefinitionResp> {
let model = process_definition::Entity::find_by_id(id)
.one(db)
.await
.map_err(|e| WorkflowError::Validation(e.to_string()))?
.filter(|m| m.tenant_id == tenant_id && m.deleted_at.is_none())
.ok_or_else(|| WorkflowError::NotFound(format!("流程定义不存在: {id}")))?;
Ok(Self::model_to_resp(&model))
}
/// 创建流程定义。
pub async fn create(
tenant_id: Uuid,
operator_id: Uuid,
req: &CreateProcessDefinitionReq,
db: &sea_orm::DatabaseConnection,
event_bus: &EventBus,
) -> WorkflowResult<ProcessDefinitionResp> {
// 验证流程图合法性
parser::parse_and_validate(&req.nodes, &req.edges)?;
let now = Utc::now();
let id = Uuid::now_v7();
let nodes_json = serde_json::to_value(&req.nodes)
.map_err(|e| WorkflowError::Validation(e.to_string()))?;
let edges_json = serde_json::to_value(&req.edges)
.map_err(|e| WorkflowError::Validation(e.to_string()))?;
let model = process_definition::ActiveModel {
id: Set(id),
tenant_id: Set(tenant_id),
name: Set(req.name.clone()),
key: Set(req.key.clone()),
version: Set(1),
category: Set(req.category.clone()),
description: Set(req.description.clone()),
nodes: Set(nodes_json),
edges: Set(edges_json),
status: Set("draft".to_string()),
created_at: Set(now),
updated_at: Set(now),
created_by: Set(operator_id),
updated_by: Set(operator_id),
deleted_at: Set(None),
version_field: Set(1),
};
model
.insert(db)
.await
.map_err(|e| WorkflowError::Validation(e.to_string()))?;
event_bus
.publish(
erp_core::events::DomainEvent::new(
"process_definition.created",
tenant_id,
serde_json::json!({ "definition_id": id, "key": req.key }),
),
db,
)
.await;
audit_service::record(
AuditLog::new(
tenant_id,
Some(operator_id),
"process_definition.create",
"process_definition",
)
.with_resource_id(id),
db,
)
.await;
Ok(ProcessDefinitionResp {
id,
name: req.name.clone(),
key: req.key.clone(),
version: 1,
category: req.category.clone(),
description: req.description.clone(),
nodes: serde_json::to_value(&req.nodes).unwrap_or_default(),
edges: serde_json::to_value(&req.edges).unwrap_or_default(),
status: "draft".to_string(),
created_at: now,
updated_at: now,
lock_version: 1,
})
}
/// 更新流程定义(仅 draft 状态可编辑)。
pub async fn update(
id: Uuid,
tenant_id: Uuid,
operator_id: Uuid,
req: &UpdateProcessDefinitionReq,
db: &sea_orm::DatabaseConnection,
) -> WorkflowResult<ProcessDefinitionResp> {
let model = process_definition::Entity::find_by_id(id)
.one(db)
.await
.map_err(|e| WorkflowError::Validation(e.to_string()))?
.filter(|m| m.tenant_id == tenant_id && m.deleted_at.is_none())
.ok_or_else(|| WorkflowError::NotFound(format!("流程定义不存在: {id}")))?;
if model.status != "draft" {
return Err(WorkflowError::InvalidState(
"只有 draft 状态的流程定义可以编辑".to_string(),
));
}
let current_version = model.version_field;
let mut active: process_definition::ActiveModel = model.into();
if let Some(name) = &req.name {
active.name = Set(name.clone());
}
if let Some(category) = &req.category {
active.category = Set(Some(category.clone()));
}
if let Some(description) = &req.description {
active.description = Set(Some(description.clone()));
}
// 当 nodes 或 edges 任一存在时,取最终值验证流程图完整性
let _final_nodes = req.nodes.as_ref().or_else(|| {
serde_json::from_value::<Vec<crate::dto::NodeDef>>(active.nodes.as_ref().clone())
.ok()
.as_ref()
.map(|_| unreachable!())
});
// 简化:如果提供了 nodes 或 edges将两者合并后验证
if req.nodes.is_some() || req.edges.is_some() {
let nodes_val = req
.nodes
.as_ref()
.map(|n| serde_json::to_value(n).unwrap_or_default())
.unwrap_or(active.nodes.as_ref().clone());
let edges_val = req
.edges
.as_ref()
.map(|e| serde_json::to_value(e).unwrap_or_default())
.unwrap_or(active.edges.as_ref().clone());
let nodes: Vec<crate::dto::NodeDef> = serde_json::from_value(nodes_val)
.map_err(|e| WorkflowError::Validation(format!("节点数据无效: {e}")))?;
let edges: Vec<crate::dto::EdgeDef> = serde_json::from_value(edges_val)
.map_err(|e| WorkflowError::Validation(format!("连线数据无效: {e}")))?;
parser::parse_and_validate(&nodes, &edges)?;
}
if let Some(nodes) = &req.nodes {
let nodes_json = serde_json::to_value(nodes)
.map_err(|e| WorkflowError::Validation(e.to_string()))?;
active.nodes = Set(nodes_json);
}
if let Some(edges) = &req.edges {
let edges_json = serde_json::to_value(edges)
.map_err(|e| WorkflowError::Validation(e.to_string()))?;
active.edges = Set(edges_json);
}
let next_ver = check_version(req.version, current_version)
.map_err(|_| WorkflowError::VersionMismatch)?;
active.version_field = Set(next_ver);
active.updated_at = Set(Utc::now());
active.updated_by = Set(operator_id);
let updated = active
.update(db)
.await
.map_err(|e| WorkflowError::Validation(e.to_string()))?;
audit_service::record(
AuditLog::new(
tenant_id,
Some(operator_id),
"process_definition.update",
"process_definition",
)
.with_resource_id(id),
db,
)
.await;
Ok(Self::model_to_resp(&updated))
}
/// 发布流程定义draft → published
pub async fn publish(
id: Uuid,
tenant_id: Uuid,
operator_id: Uuid,
db: &sea_orm::DatabaseConnection,
event_bus: &EventBus,
) -> WorkflowResult<ProcessDefinitionResp> {
let model = process_definition::Entity::find_by_id(id)
.one(db)
.await
.map_err(|e| WorkflowError::Validation(e.to_string()))?
.filter(|m| m.tenant_id == tenant_id && m.deleted_at.is_none())
.ok_or_else(|| WorkflowError::NotFound(format!("流程定义不存在: {id}")))?;
if model.status != "draft" {
return Err(WorkflowError::InvalidState(
"只有 draft 状态的流程定义可以发布".to_string(),
));
}
// 验证流程图
let nodes: Vec<crate::dto::NodeDef> = serde_json::from_value(model.nodes.clone())
.map_err(|e| WorkflowError::InvalidDiagram(format!("节点数据无效: {e}")))?;
let edges: Vec<crate::dto::EdgeDef> = serde_json::from_value(model.edges.clone())
.map_err(|e| WorkflowError::InvalidDiagram(format!("连线数据无效: {e}")))?;
parser::parse_and_validate(&nodes, &edges)?;
let current_version = model.version_field;
let mut active: process_definition::ActiveModel = model.into();
active.status = Set("published".to_string());
active.version_field = Set(current_version + 1);
active.updated_at = Set(Utc::now());
active.updated_by = Set(operator_id);
let updated = active
.update(db)
.await
.map_err(|e| WorkflowError::Validation(e.to_string()))?;
event_bus
.publish(
erp_core::events::DomainEvent::new(
"process_definition.published",
tenant_id,
serde_json::json!({ "definition_id": id }),
),
db,
)
.await;
audit_service::record(
AuditLog::new(
tenant_id,
Some(operator_id),
"process_definition.publish",
"process_definition",
)
.with_resource_id(id),
db,
)
.await;
Ok(Self::model_to_resp(&updated))
}
/// 将已发布的流程定义标记为 deprecated。
pub async fn deprecate(
id: Uuid,
tenant_id: Uuid,
operator_id: Uuid,
db: &sea_orm::DatabaseConnection,
event_bus: &EventBus,
) -> WorkflowResult<ProcessDefinitionResp> {
let model = process_definition::Entity::find_by_id(id)
.one(db)
.await
.map_err(|e| WorkflowError::Validation(e.to_string()))?
.filter(|m| m.tenant_id == tenant_id && m.deleted_at.is_none())
.ok_or_else(|| WorkflowError::NotFound(format!("流程定义不存在: {id}")))?;
if model.status != "published" {
return Err(WorkflowError::InvalidState(
"只有 published 状态的流程定义可以废弃".to_string(),
));
}
let current_version = model.version_field;
let mut active: process_definition::ActiveModel = model.into();
active.status = Set("deprecated".to_string());
active.version_field = Set(current_version + 1);
active.updated_at = Set(Utc::now());
active.updated_by = Set(operator_id);
let updated = active
.update(db)
.await
.map_err(|e| WorkflowError::Validation(e.to_string()))?;
event_bus
.publish(
erp_core::events::DomainEvent::new(
"process_definition.deprecated",
tenant_id,
serde_json::json!({ "definition_id": id }),
),
db,
)
.await;
audit_service::record(
AuditLog::new(
tenant_id,
Some(operator_id),
"process_definition.deprecate",
"process_definition",
)
.with_resource_id(id),
db,
)
.await;
Ok(Self::model_to_resp(&updated))
}
/// 软删除流程定义。
pub async fn delete(
id: Uuid,
tenant_id: Uuid,
operator_id: Uuid,
db: &sea_orm::DatabaseConnection,
) -> WorkflowResult<()> {
let model = process_definition::Entity::find_by_id(id)
.one(db)
.await
.map_err(|e| WorkflowError::Validation(e.to_string()))?
.filter(|m| m.tenant_id == tenant_id && m.deleted_at.is_none())
.ok_or_else(|| WorkflowError::NotFound(format!("流程定义不存在: {id}")))?;
let current_version = model.version_field;
let mut active: process_definition::ActiveModel = model.into();
active.version_field = Set(current_version + 1);
active.deleted_at = Set(Some(Utc::now()));
active.updated_at = Set(Utc::now());
active.updated_by = Set(operator_id);
active
.update(db)
.await
.map_err(|e| WorkflowError::Validation(e.to_string()))?;
audit_service::record(
AuditLog::new(
tenant_id,
Some(operator_id),
"process_definition.delete",
"process_definition",
)
.with_resource_id(id),
db,
)
.await;
Ok(())
}
fn model_to_resp(m: &process_definition::Model) -> ProcessDefinitionResp {
ProcessDefinitionResp {
id: m.id,
name: m.name.clone(),
key: m.key.clone(),
version: m.version,
category: m.category.clone(),
description: m.description.clone(),
nodes: m.nodes.clone(),
edges: m.edges.clone(),
status: m.status.clone(),
created_at: m.created_at,
updated_at: m.updated_at,
lock_version: m.version_field,
}
}
}