init commit

sections/model.py

@@ -0,0 +1,44 @@
+from sqlalchemy import Column, Integer, String, Boolean, DateTime, Text, ForeignKey
+from sqlalchemy.orm import relationship
+
+from datetime import datetime
+from src.database import Base,db_session
+from marshmallow import Schema, fields
+
+import json
+import flask 
+
+#from src.articles import Article
+
+class SectionSchema(Schema):
+    id=fields.Integer()
+    foreign_name=fields.String()
+    name=fields.String()
+
+class Section(Base):
+    __tablename__ = 'sections'
+    id = Column(Integer, primary_key=True)
+    url = Column(String(250))
+    crawlurl = Column(Integer)
+    foreign_name = Column(String(250),unique=True)
+    name=Column(String(250))
+    group = Column(String(250))
+    articles=relationship("Article", back_populates="section")
+
+    def __json__(self):
+        return SectionSchema().dump(self)[0]
+    def __init__(self, url=None,fname=None):
+        self.url=url
+        self.foreign_name=fname
+        
+    @classmethod
+    def find_or_create(cls, fname):
+        s=Section.query.filter(Section.foreign_name==fname).first()
+        if s is None:
+            s=Section(fname)
+            db_session.add(s)
+            db_session.commit()
+        s.foreign_name=fname
+        db_session.add(s)
+        db_session.commit()
+        return s