feat: 增加了config配置项

Author: colorful3

app/plugins/poem/app/model.py

@@ -1,17 +1,21 @@
+from lin.core import lin_config
 from lin.exception import NotFound
 from lin.interface import InfoCrud as Base
-from sqlalchemy import Column, String, Integer
+from sqlalchemy import Column, String, Integer, Text
 
 
 class Poem(Base):
     id = Column(Integer, primary_key=True, autoincrement=True)
     title = Column(String(50), nullable=False, comment='标题')
     author = Column(String(50), default='未名', comment='作者')
     dynasty = Column(String(50), default='位置', comment='朝代')
-    content = Column(String(255), nullable=False, comment='内容')
+    content = Column(Text, nullable=False, comment='内容')
+    image = Column(String(255), default='', comment='配图')
 
     def get_all(self):
-        poems = self.query.filter_by(delete_time=None).all()
+        poems = self.query.filter_by(delete_time=None).limit(
+            lin_config.get_config('poem.limit')
+        ).all()
         if not poems:
             raise NotFound(msg='没有找到相关诗词')
         return poems

app/plugins/poem/config.py

@@ -0,0 +1 @@
+limit = 20