feat(flows): 新增流程编辑器基础功能与相关组件
feat(backend): 添加流程模型与服务支持 feat(frontend): 实现流程编辑器UI与交互 feat(assets): 添加流程节点图标资源 feat(plugins): 实现上下文菜单和运行时插件 feat(components): 新增基础节点和侧边栏组件 feat(routes): 添加流程相关路由配置 feat(models): 创建流程和运行日志数据模型 feat(services): 实现流程服务层逻辑 feat(migration): 添加流程相关数据库迁移 feat(config): 更新前端配置支持流程编辑器 feat(utils): 增强axios错误处理和工具函数
This commit is contained in:
438
backend/src/services/flow_service.rs
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438
backend/src/services/flow_service.rs
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@ -0,0 +1,438 @@
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// removed unused: use std::collections::HashMap;
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// removed unused: use std::sync::Mutex;
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use anyhow::Context as _;
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use serde::{Deserialize, Serialize};
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use crate::error::AppError;
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use crate::flow::{self, dsl::FlowDSL, engine::FlowEngine, context::{DriveOptions, ExecutionMode}};
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use crate::db::Db;
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use crate::models::flow as db_flow;
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use crate::models::request_log; // 新增：查询最近修改人
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use crate::services::flow_run_log_service;
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use crate::services::flow_run_log_service::CreateRunLogInput;
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use sea_orm::{EntityTrait, ActiveModelTrait, Set, DbErr, ColumnTrait, QueryFilter, PaginatorTrait, QueryOrder};
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use sea_orm::entity::prelude::DateTimeWithTimeZone; // 新增：时间类型
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use chrono::{Utc, FixedOffset};
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use tracing::{info, error};
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#[derive(Debug, Clone, Serialize, Deserialize)]
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pub struct FlowSummary {
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pub id: String,
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pub name: String,
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#[serde(skip_serializing_if = "Option::is_none")] pub code: Option<String>,
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#[serde(skip_serializing_if = "Option::is_none")] pub remark: Option<String>,
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pub created_at: DateTimeWithTimeZone,
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pub updated_at: DateTimeWithTimeZone,
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#[serde(skip_serializing_if = "Option::is_none")] pub last_modified_by: Option<String>,
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}
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#[derive(Debug, Clone, Serialize, Deserialize)]
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pub struct FlowDoc { pub id: String, pub yaml: String, #[serde(skip_serializing_if = "Option::is_none")] pub design_json: Option<serde_json::Value> }
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#[derive(Debug, Clone, Serialize, Deserialize)]
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pub struct FlowCreateReq { pub yaml: Option<String>, pub name: Option<String>, pub design_json: Option<serde_json::Value>, pub code: Option<String>, pub remark: Option<String> }
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#[derive(Debug, Clone, Serialize, Deserialize)]
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pub struct FlowUpdateReq { pub yaml: Option<String>, pub design_json: Option<serde_json::Value>, pub name: Option<String>, pub code: Option<String>, pub remark: Option<String> }
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#[derive(Debug, Clone, Serialize, Deserialize)]
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pub struct RunReq { #[serde(default)] pub input: serde_json::Value }
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#[derive(Debug, Clone, Serialize, Deserialize)]
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pub struct RunResult { pub ok: bool, pub ctx: serde_json::Value, pub logs: Vec<String> }
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#[derive(Clone, Debug, serde::Serialize)]
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pub struct PageResp<T> { pub items: Vec<T>, pub total: u64, pub page: u64, pub page_size: u64 }
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// list flows from database with pagination & keyword
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pub async fn list(db: &Db, page: u64, page_size: u64, keyword: Option<String>) -> anyhow::Result<PageResp<FlowSummary>> {
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let mut selector = db_flow::Entity::find();
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if let Some(k) = keyword.filter(|s| !s.is_empty()) {
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let like = format!("%{}%", k);
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selector = selector.filter(
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db_flow::Column::Name.like(like.clone())
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.or(db_flow::Column::Id.like(like))
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);
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}
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let paginator = selector.order_by_desc(db_flow::Column::CreatedAt).paginate(db, page_size);
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let total = paginator.num_items().await? as u64;
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let models = paginator.fetch_page(if page > 0 { page - 1 } else { 0 }).await?;
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let mut items: Vec<FlowSummary> = Vec::with_capacity(models.len());
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for row in models.into_iter() {
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let id = row.id.clone();
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let name = row
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.name
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.clone()
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.or_else(|| row.yaml.as_deref().and_then(extract_name))
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.unwrap_or_else(|| {
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let prefix: String = id.chars().take(8).collect();
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format!("flow_{}", prefix)
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});
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// 最近修改人：从请求日志中查找最近一次对该flow的PUT请求
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let last_modified_by = request_log::Entity::find()
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.filter(request_log::Column::Path.like(format!("/api/flows/{}%", id)))
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.filter(request_log::Column::Method.eq("PUT"))
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.order_by_desc(request_log::Column::RequestTime)
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.one(db)
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.await?
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.and_then(|m| m.username);
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items.push(FlowSummary {
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id,
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name,
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code: row.code.clone(),
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remark: row.remark.clone(),
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created_at: row.created_at,
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updated_at: row.updated_at,
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last_modified_by,
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});
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}
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Ok(PageResp { items, total, page, page_size })
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}
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// create new flow with yaml or just name
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pub async fn create(db: &Db, req: FlowCreateReq) -> anyhow::Result<FlowDoc> {
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info!(target: "udmin", "flow.create: start");
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if let Some(yaml) = &req.yaml {
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let _parsed: FlowDSL = serde_yaml::from_str(yaml).context("invalid flow yaml")?;
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info!(target: "udmin", "flow.create: yaml parsed ok");
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}
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let id = uuid::Uuid::new_v4().to_string();
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let name = req
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.name
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.clone()
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.or_else(|| req.yaml.as_deref().and_then(extract_name));
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let now = Utc::now().with_timezone(&FixedOffset::east_opt(0).unwrap());
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let design_json_str = match &req.design_json { Some(v) => serde_json::to_string(v).ok(), None => None };
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let am = db_flow::ActiveModel {
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id: Set(id.clone()),
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name: Set(name),
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yaml: Set(req.yaml.clone()),
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design_json: Set(design_json_str),
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// 新增: code 与 remark 入库
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code: Set(req.code.clone()),
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remark: Set(req.remark.clone()),
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created_at: Set(now),
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updated_at: Set(Utc::now().with_timezone(&FixedOffset::east_opt(0).unwrap())),
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..Default::default()
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};
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info!(target: "udmin", "flow.create: inserting into db id={}", id);
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// Use exec() instead of insert() returning Model to avoid RecordNotInserted on non-AI PK
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match db_flow::Entity::insert(am).exec(db).await {
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Ok(_) => {
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info!(target: "udmin", "flow.create: insert ok id={}", id);
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Ok(FlowDoc { id, yaml: req.yaml.unwrap_or_default(), design_json: req.design_json })
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}
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Err(DbErr::RecordNotInserted) => {
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// Workaround for MySQL + non-auto-increment PK: verify by reading back
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error!(target: "udmin", "flow.create: insert returned RecordNotInserted, verifying by select id={}", id);
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match db_flow::Entity::find_by_id(id.clone()).one(db).await {
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Ok(Some(_)) => {
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info!(target: "udmin", "flow.create: found inserted row by id={}, treating as success", id);
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Ok(FlowDoc { id, yaml: req.yaml.unwrap_or_default(), design_json: req.design_json })
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}
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Ok(None) => Err(anyhow::anyhow!("insert flow failed").context("verify inserted row not found")),
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Err(e) => Err(anyhow::Error::new(e).context("insert flow failed")),
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}
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}
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Err(e) => {
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error!(target: "udmin", error = ?e, "flow.create: insert failed");
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Err(anyhow::Error::new(e).context("insert flow failed"))
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}
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}
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}
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pub async fn get(db: &Db, id: &str) -> anyhow::Result<FlowDoc> {
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let row = db_flow::Entity::find_by_id(id.to_string()).one(db).await?;
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let row = row.ok_or_else(|| anyhow::anyhow!("not found"))?;
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let yaml = row.yaml.unwrap_or_default();
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let design_json = row.design_json.and_then(|s| serde_json::from_str::<serde_json::Value>(&s).ok());
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Ok(FlowDoc { id: row.id, yaml, design_json })
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}
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pub async fn update(db: &Db, id: &str, req: FlowUpdateReq) -> anyhow::Result<FlowDoc> {
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if let Some(yaml) = &req.yaml {
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let _parsed: FlowDSL = serde_yaml::from_str(yaml).context("invalid flow yaml")?;
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}
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let row = db_flow::Entity::find_by_id(id.to_string()).one(db).await?;
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let Some(row) = row else { return Err(anyhow::anyhow!("not found")); };
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let mut am: db_flow::ActiveModel = row.into();
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if let Some(yaml) = req.yaml {
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let next_name = req
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.name
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.or_else(|| extract_name(&yaml));
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if let Some(n) = next_name { am.name = Set(Some(n)); }
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am.yaml = Set(Some(yaml.clone()));
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} else if let Some(n) = req.name { am.name = Set(Some(n)); }
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if let Some(dj) = req.design_json {
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let s = serde_json::to_string(&dj)?;
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am.design_json = Set(Some(s));
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}
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if let Some(c) = req.code { am.code = Set(Some(c)); }
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if let Some(r) = req.remark { am.remark = Set(Some(r)); }
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// update timestamp
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am.updated_at = Set(Utc::now().with_timezone(&FixedOffset::east_opt(0).unwrap()));
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am.update(db).await?;
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// return latest yaml
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let got = db_flow::Entity::find_by_id(id.to_string()).one(db).await?.unwrap();
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let dj = got.design_json.as_deref().and_then(|s| serde_json::from_str::<serde_json::Value>(&s).ok());
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Ok(FlowDoc { id: id.to_string(), yaml: got.yaml.unwrap_or_default(), design_json: dj })
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}
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pub async fn delete(db: &Db, id: &str) -> anyhow::Result<()> {
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let row = db_flow::Entity::find_by_id(id.to_string()).one(db).await?;
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let Some(row) = row else { return Err(anyhow::anyhow!("not found")); };
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let am: db_flow::ActiveModel = row.into();
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am.delete(db).await?;
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Ok(())
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}
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pub async fn run(db: &Db, id: &str, req: RunReq, operator: Option<(i64, String)>) -> anyhow::Result<RunResult> {
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info!(target = "udmin", "flow.run: start id={}", id);
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let start = Utc::now().with_timezone(&FixedOffset::east_opt(0).unwrap());
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// 获取流程编码，便于写入运行日志
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let flow_code: Option<String> = match db_flow::Entity::find_by_id(id.to_string()).one(db).await {
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Ok(Some(row)) => row.code,
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_ => None,
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};
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// 获取流程文档并记录失败原因
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let doc = match get(db, id).await {
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Ok(d) => d,
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Err(e) => {
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error!(target = "udmin", error = ?e, "flow.run: get doc failed id={}", id);
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// 记录失败日志
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let (user_id, username) = operator.map(|(u, n)| (Some(u), Some(n))).unwrap_or((None, None));
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let _ = flow_run_log_service::create(db, CreateRunLogInput {
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flow_id: id.to_string(),
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flow_code: flow_code.clone(),
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input: Some(serde_json::to_string(&req.input).unwrap_or_default()),
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output: None,
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ok: false,
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logs: Some(format!("get doc failed: {}", e)),
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user_id,
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username,
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started_at: start,
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duration_ms: 0,
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}).await;
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return Err(e);
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}
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};
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// 记录文档基本信息，便于判断走 JSON 还是 YAML
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info!(target = "udmin", "flow.run: doc loaded id={} has_design_json={} yaml_len={}", id, doc.design_json.is_some(), doc.yaml.len());
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// Prefer design_json if present; otherwise fall back to YAML
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let mut exec_mode: ExecutionMode = ExecutionMode::Sync;
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let (mut chain, mut ctx) = if let Some(design) = &doc.design_json {
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info!(target = "udmin", "flow.run: building chain from design_json id={}", id);
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let chain_from_json = match flow::dsl::chain_from_design_json(design) {
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Ok(c) => c,
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Err(e) => {
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error!(target = "udmin", error = ?e, "flow.run: build chain from design_json failed id={}", id);
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// 记录失败日志
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let (user_id, username) = operator.as_ref().map(|(u, n)| (Some(*u), Some(n.clone()))).unwrap_or((None, None));
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let _ = flow_run_log_service::create(db, CreateRunLogInput {
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flow_id: id.to_string(),
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flow_code: flow_code.clone(),
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input: Some(serde_json::to_string(&req.input).unwrap_or_default()),
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output: None,
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ok: false,
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logs: Some(format!("build chain from design_json failed: {}", e)),
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user_id,
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username,
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started_at: start,
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duration_ms: 0,
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}).await;
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return Err(e);
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}
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};
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let mut ctx = req.input.clone();
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// Merge node-scoped configs into ctx under ctx.nodes
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let supplement = flow::dsl::ctx_from_design_json(design);
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merge_json(&mut ctx, &supplement);
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// 解析 executionMode / execution_mode
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let mode_str = design.get("executionMode").and_then(|v| v.as_str())
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.or_else(|| design.get("execution_mode").and_then(|v| v.as_str()))
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.unwrap_or("sync");
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exec_mode = parse_execution_mode(mode_str);
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info!(target = "udmin", "flow.run: ctx prepared from design_json id={} execution_mode={:?}", id, exec_mode);
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(chain_from_json, ctx)
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} else {
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info!(target = "udmin", "flow.run: parsing YAML id={}", id);
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let dsl = match serde_yaml::from_str::<FlowDSL>(&doc.yaml) {
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Ok(d) => d,
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Err(e) => {
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error!(target = "udmin", error = ?e, "flow.run: parse YAML failed id={}", id);
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// 记录失败日志
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let (user_id, username) = operator.as_ref().map(|(u, n)| (Some(*u), Some(n.clone()))).unwrap_or((None, None));
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let _ = flow_run_log_service::create(db, CreateRunLogInput {
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flow_id: id.to_string(),
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flow_code: flow_code.clone(),
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input: Some(serde_json::to_string(&req.input).unwrap_or_default()),
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output: None,
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ok: false,
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logs: Some(format!("parse YAML failed: {}", e)),
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user_id,
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username,
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started_at: start,
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duration_ms: 0,
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}).await;
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return Err(anyhow::Error::new(e).context("invalid flow yaml"));
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}
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};
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// 从 YAML 读取执行模式
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if let Some(m) = dsl.execution_mode.as_deref() { exec_mode = parse_execution_mode(m); }
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(dsl.into(), req.input.clone())
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};
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// 若 design_json 解析出的 chain 为空，兜底回退到 YAML
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if chain.nodes.is_empty() {
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info!(target = "udmin", "flow.run: empty chain from design_json, fallback to YAML id={}", id);
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if !doc.yaml.trim().is_empty() {
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match serde_yaml::from_str::<FlowDSL>(&doc.yaml) {
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Ok(dsl) => {
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chain = dsl.clone().into();
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// YAML 分支下 ctx = req.input，不再追加 design_json 的补充
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ctx = req.input.clone();
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if let Some(m) = dsl.execution_mode.as_deref() { exec_mode = parse_execution_mode(m); }
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info!(target = "udmin", "flow.run: fallback YAML parsed id={} execution_mode={:?}", id, exec_mode);
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}
|
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Err(e) => {
|
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error!(target = "udmin", error = ?e, "flow.run: fallback parse YAML failed id={}", id);
|
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// 保留原空 chain，稍后 drive 会再次报错，但这里先返回更明确的错误
|
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let (user_id, username) = operator.as_ref().map(|(u, n)| (Some(*u), Some(n.clone()))).unwrap_or((None, None));
|
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let _ = flow_run_log_service::create(db, CreateRunLogInput {
|
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flow_id: id.to_string(),
|
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flow_code: flow_code.clone(),
|
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input: Some(serde_json::to_string(&req.input).unwrap_or_default()),
|
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output: None,
|
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ok: false,
|
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logs: Some(format!("fallback parse YAML failed: {}", e)),
|
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user_id,
|
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username,
|
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started_at: start,
|
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duration_ms: 0,
|
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}).await;
|
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return Err(anyhow::anyhow!("empty chain: design_json produced no nodes and YAML parse failed"));
|
||||
}
|
||||
}
|
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} else {
|
||||
// YAML 也为空
|
||||
let (user_id, username) = operator.as_ref().map(|(u, n)| (Some(*u), Some(n.clone()))).unwrap_or((None, None));
|
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let _ = flow_run_log_service::create(db, CreateRunLogInput {
|
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flow_id: id.to_string(),
|
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flow_code: flow_code.clone(),
|
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input: Some(serde_json::to_string(&req.input).unwrap_or_default()),
|
||||
output: None,
|
||||
ok: false,
|
||||
logs: Some("empty chain: both design_json and yaml are empty".to_string()),
|
||||
user_id,
|
||||
username,
|
||||
started_at: start,
|
||||
duration_ms: 0,
|
||||
}).await;
|
||||
return Err(anyhow::anyhow!("empty chain: both design_json and yaml are empty"));
|
||||
}
|
||||
}
|
||||
|
||||
// 从全局注册中心获取任务（若未初始化则返回默认注册表）
|
||||
let tasks: flow::task::TaskRegistry = flow::task::get_registry();
|
||||
let engine = FlowEngine::new(tasks);
|
||||
|
||||
info!(target = "udmin", "flow.run: driving engine id={} nodes={} links={} execution_mode={:?}", id, chain.nodes.len(), chain.links.len(), exec_mode);
|
||||
// 执行
|
||||
let drive_res = engine
|
||||
.drive(&chain, ctx, DriveOptions { execution_mode: exec_mode.clone(), ..Default::default() })
|
||||
.await;
|
||||
let (ctx, logs) = match drive_res {
|
||||
Ok(r) => r,
|
||||
Err(e) => {
|
||||
error!(target = "udmin", error = ?e, "flow.run: engine drive failed id={}", id);
|
||||
let dur = (Utc::now().with_timezone(&FixedOffset::east_opt(0).unwrap()) - start).num_milliseconds() as i64;
|
||||
let (user_id, username) = operator.as_ref().map(|(u, n)| (Some(*u), Some(n.clone()))).unwrap_or((None, None));
|
||||
let _ = flow_run_log_service::create(db, CreateRunLogInput {
|
||||
flow_id: id.to_string(),
|
||||
flow_code: flow_code.clone(),
|
||||
input: Some(serde_json::to_string(&req.input).unwrap_or_default()),
|
||||
output: None,
|
||||
ok: false,
|
||||
logs: Some(format!("engine drive failed: {}", e)),
|
||||
user_id,
|
||||
username,
|
||||
started_at: start,
|
||||
duration_ms: dur,
|
||||
}).await;
|
||||
return Err(e);
|
||||
}
|
||||
};
|
||||
|
||||
// 调试：打印处理后的 ctx
|
||||
//info!(target = "udmin", "flow.run: result ctx={}", serde_json::to_string(&ctx).unwrap_or_else(|_| "<serialize ctx failed>".to_string()));
|
||||
|
||||
info!(target = "udmin", "flow.run: done id={}", id);
|
||||
// 写入成功日志
|
||||
let dur = (Utc::now().with_timezone(&FixedOffset::east_opt(0).unwrap()) - start).num_milliseconds() as i64;
|
||||
let (user_id, username) = operator.map(|(u, n)| (Some(u), Some(n))).unwrap_or((None, None));
|
||||
let _ = flow_run_log_service::create(db, CreateRunLogInput {
|
||||
flow_id: id.to_string(),
|
||||
flow_code: flow_code.clone(),
|
||||
input: Some(serde_json::to_string(&req.input).unwrap_or_default()),
|
||||
output: Some(serde_json::to_string(&ctx).unwrap_or_default()),
|
||||
ok: true,
|
||||
logs: Some(serde_json::to_string(&logs).unwrap_or_default()),
|
||||
user_id,
|
||||
username,
|
||||
started_at: start,
|
||||
duration_ms: dur,
|
||||
}).await;
|
||||
Ok(RunResult { ok: true, ctx, logs })
|
||||
}
|
||||
|
||||
fn extract_name(yaml: &str) -> Option<String> {
|
||||
for line in yaml.lines() {
|
||||
let lt = line.trim();
|
||||
if lt.starts_with("#") && lt.len() > 1 { return Some(lt.trim_start_matches('#').trim().to_string()); }
|
||||
if lt.starts_with("name:") {
|
||||
let name = lt.trim_start_matches("name:").trim();
|
||||
if !name.is_empty() { return Some(name.to_string()); }
|
||||
}
|
||||
}
|
||||
None
|
||||
}
|
||||
|
||||
pub fn ae<E: Into<anyhow::Error>>(e: E) -> AppError {
|
||||
let err: anyhow::Error = e.into();
|
||||
let mut full = err.to_string();
|
||||
for cause in err.chain().skip(1) {
|
||||
full.push_str(" | ");
|
||||
full.push_str(&cause.to_string());
|
||||
}
|
||||
// MySQL duplicate key example: "Database error: Duplicate entry 'xxx' for key 'idx-unique-flows-code'"
|
||||
// 也兼容包含唯一索引名/关键字的报错信息
|
||||
if full.contains("Duplicate entry") || full.contains("idx-unique-flows-code") || (full.contains("code") && full.contains("unique")) {
|
||||
return AppError::Conflict("流程编码已存在".to_string());
|
||||
}
|
||||
AppError::Anyhow(anyhow::anyhow!(full))
|
||||
}
|
||||
|
||||
// shallow merge json objects: a <- b
|
||||
fn merge_json(a: &mut serde_json::Value, b: &serde_json::Value) {
|
||||
use serde_json::Value as V;
|
||||
match (a, b) {
|
||||
(V::Object(ao), V::Object(bo)) => {
|
||||
for (k, v) in bo.iter() {
|
||||
match ao.get_mut(k) {
|
||||
Some(av) => merge_json(av, v),
|
||||
None => { ao.insert(k.clone(), v.clone()); }
|
||||
}
|
||||
}
|
||||
}
|
||||
(a_slot, b_val) => { *a_slot = b_val.clone(); }
|
||||
}
|
||||
}
|
||||
|
||||
// parse execution mode string
|
||||
fn parse_execution_mode(s: &str) -> ExecutionMode {
|
||||
match s.to_ascii_lowercase().as_str() {
|
||||
"async" | "async_fire_and_forget" | "fire_and_forget" => ExecutionMode::AsyncFireAndForget,
|
||||
_ => ExecutionMode::Sync,
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user