Refactoring the code

- Use Flask blueprint
- Split model and views into smaller parts
- Bug fixes
- API adjustment

powerdnsadmin/models/history.py

@@ -0,0 +1,48 @@
+from flask import current_app
+from datetime import datetime
+
+from .base import db
+
+
+class History(db.Model):
+    id = db.Column(db.Integer, primary_key=True)
+    msg = db.Column(db.String(256))
+    # detail = db.Column(db.Text().with_variant(db.Text(length=2**24-2), 'mysql'))
+    detail = db.Column(db.Text())
+    created_by = db.Column(db.String(128))
+    created_on = db.Column(db.DateTime, default=datetime.utcnow)
+
+    def __init__(self, id=None, msg=None, detail=None, created_by=None):
+        self.id = id
+        self.msg = msg
+        self.detail = detail
+        self.created_by = created_by
+
+    def __repr__(self):
+        return '<History {0}>'.format(self.msg)
+
+    def add(self):
+        """
+        Add an event to history table
+        """
+        h = History()
+        h.msg = self.msg
+        h.detail = self.detail
+        h.created_by = self.created_by
+        db.session.add(h)
+        db.session.commit()
+
+    def remove_all(self):
+        """
+        Remove all history from DB
+        """
+        try:
+            db.session.query(History).delete()
+            db.session.commit()
+            current_app.logger.info("Removed all history")
+            return True
+        except Exception as e:
+            db.session.rollback()
+            current_app.logger.error("Cannot remove history. DETAIL: {0}".format(e))
+            current_app.logger.debug(traceback.format_exc())
+            return False