cid

src/entity/la_article.rs

@@ -27,6 +27,19 @@ pub struct Model {
 }
 
 #[derive(Copy, Clone, Debug, EnumIter, DeriveRelation)]
-pub enum Relation {}
+pub enum Relation {
+    #[sea_orm(
+    belongs_to = "super::la_article_category::Entity",
+    from = "Column::Cid",
+    to = "super::la_article_category::Column::Id",
+    )]
+    LaArticleCategory
+}
+
+impl Related<super::la_article_category::Entity> for Entity {
+    fn to() -> RelationDef {
+        Relation::LaArticleCategory.def()
+    }
+}
 
 impl ActiveModelBehavior for ActiveModel {}

src/entity/la_article_category.rs

@@ -17,6 +17,15 @@ pub struct Model {
 }
 
 #[derive(Copy, Clone, Debug, EnumIter, DeriveRelation)]
-pub enum Relation {}
+pub enum Relation {
+    #[sea_orm(has_many = "super::la_article::Entity")]
+    LaArticle
+}
+
+impl Related<super::la_article::Entity> for Entity {
+    fn to() -> RelationDef {
+        Relation::LaArticle.def()
+    }
+}
 
 impl ActiveModelBehavior for ActiveModel {}

src/service/artile.rs

@@ -1,6 +1,7 @@
 use std::sync::Arc;
 
 use crate::entity::la_article;
+use crate::entity::la_article_category;
 use crate::params::article::{ArticleDetailParams, ArticleListParams};
 use crate::response::article::{ArticleDetail, ArticleListItem, SiblingArticle};
 use crate::response::common::{BaseResponse, PageResponse};
@@ -31,7 +32,15 @@ impl ArticleService {
         let page_size = params.page_size.unwrap_or(20);
         let articles_selection = la_article::Entity::find()
             .filter(la_article::Column::IsDelete.ne(1))
-            .filter(la_article::Column::IsShow.ne(0));
+            .filter(la_article::Column::IsShow.ne(0))
+            .apply_if(Some(params.cid), |mut query, v| {
+                match v {
+                    Some(cid) => {
+                        query.filter(la_article::Column::Cid.eq(cid))
+                    }
+                    None => { query }
+                }
+            });
         let count = match articles_selection.clone().count(&self.state.db_conn).await {
             Ok(total) => total,
             Err(_) => 0,
@@ -118,13 +127,13 @@ impl ArticleService {
             }
         };
 
-        match la_article::Entity::find_by_id(id)
+        match la_article::Entity::find_by_id(id).find_also_related(la_article_category::Entity)
             .filter(la_article::Column::IsDelete.eq(0))
             .filter(la_article::Column::IsShow.eq(1))
             .one(&self.state.db_conn)
             .await
         {
-            Ok(Some(article)) => {
+            Ok(Some((article, category))) => {
                 // 上一篇文章
                 let prev_result = la_article::Entity::find()
                     .filter(la_article::Column::IsDelete.eq(0))
@@ -159,7 +168,10 @@ impl ArticleService {
                 let article_detail = ArticleDetail {
                     id: article.id,
                     cid: Option::from(article.cid),
-                    category: None,
+                    category: match category {
+                        Some(category) => Some(category.name),
+                        None => None
+                    },
                     title: article.title,
                     intro: Option::from(article.intro),
                     summary: article.summary,

src/state.rs

@@ -1 +1,2 @@
 pub mod app;
+pub mod article;

src/state/article.rs

@@ -0,0 +1,5 @@
+use crate::service::artile::ArticleService;
+
+pub struct ArticleState {
+  pub article_service: ArticleService
+}