diff --git a/app/model/article.py b/app/model/article.py
index a3b4bf7..15dfef2 100644
--- a/app/model/article.py
+++ b/app/model/article.py
@@ -32,3 +32,16 @@ def get_page_articles(num, size):
             x
             for x in Article.select().order_by(desc(Article.article_id)).page(num, size)
         ]
+
+
+def get_article_by_id(article_id):
+    article_id &= 0xFFFFFFFF  # max 32 bits
+    with db_session:
+        article = Article.select(article_id=article_id).first()
+        if article:
+            return article.to_dict()
+
+
+def get_all_articles():
+    with db_session:
+        return [art.to_dict() for art in Article.select()[:]]
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