feat: 优化代码

app/src/main/java/io/legado/app/data/dao/RssArticleDao.kt

@@ -22,8 +22,8 @@ interface RssArticleDao {
     @Insert(onConflict = OnConflictStrategy.REPLACE)
     fun insert(vararg rssArticle: RssArticle)
 
-    @Query("delete from rssArticles where origin = :origin and `order` < :order")
+    @Query("delete from rssArticles where origin = :origin and sort = :sort and `order` < :order")
-    fun clearOld(origin: String, order: Long)
+    fun clearOld(origin: String, sort: String, order: Long)
 
     @Update
     fun update(vararg rssArticle: RssArticle)

app/src/main/java/io/legado/app/model/rss/RssParserByRule.kt

@@ -60,7 +60,7 @@ object RssParserByRule {
                     ruleTitle, rulePubDate, ruleDescription, ruleImage, ruleLink
                 )?.let {
                     it.sort = sortName
-                    it.origin = rssSource.sourceUrl
+                    it.origin = sourceUrl
                     articleList.add(it)
                 }
             }

app/src/main/java/io/legado/app/ui/rss/article/RssArticlesViewModel.kt

@@ -39,7 +39,7 @@ class RssArticlesViewModel(application: Application) : BaseViewModel(application
                     }
                     App.db.rssArticleDao().insert(*list.toTypedArray())
                     if (!rssSource.ruleNextPage.isNullOrEmpty()) {
-                        App.db.rssArticleDao().clearOld(rssSource.sourceUrl, order)
+                        App.db.rssArticleDao().clearOld(rssSource.sourceUrl, sortName, order)
                         loadFinally.postValue(true)
                     } else {
                         withContext(Dispatchers.Main) {