add observation class for importing observations

gschliefgraben_glasfaser/models.py

@@ -10,16 +10,52 @@ from datetime import datetime
 
 # import os
 from sqlalchemy import (Column, Integer,
-                        String, DateTime)
+                        String, DateTime, ForeignKey, Numeric)
 from sqlalchemy.ext.declarative import declarative_base
-from sqlalchemy.orm import session
-from marshmallow import Schema
-from db.pg_models import create_pg_session
+from sqlalchemy.orm import session, relationship
+#from marshmallow import Schema
 from marshmallow_sqlalchemy import SQLAlchemyAutoSchema
+from db.pg_models import create_pg_session
+
 
 Base = declarative_base()
 
 
+class Observation(Base):
+    """ observation class """
+    __tablename__ = 'observation'
+    __table_args__ = {"schema": "gba"}
+
+    id = Column('observation_id', Integer, primary_key=True)
+    name = Column('name', String)
+    value_type = Column('value_type', String)
+    # pitch = Column('PITCH', String)
+    # roll = Column('ROLL', String)
+    sampling_time_start = Column('sampling_time_start', DateTime)
+    sampling_time_end = Column('sampling_time_end', DateTime)
+    result_time = Column('result_time', DateTime)
+    sta_identifier = Column('sta_identifier', String)
+    value_quantity = Column('value_quantity', Numeric(20, 10), nullable=False)
+
+    # fk_dataset_id = Column('fk_dataset_id', Integer,
+    #                        ForeignKey('gba.dataset.dataset_id'))
+    # dataset = relationship("Dataset", lazy="joined",
+    #                        foreign_keys=[fk_dataset_id])
+    fk_dataset_id = Column(Integer, ForeignKey(
+        'gba.dataset.dataset_id'), nullable=False)
+    # dataset = relationship("Dataset", back_populates="observations")
+
+class ObservationSchema(SQLAlchemyAutoSchema):
+    """ Platform class """
+    class Meta:
+        """ Platform class """
+        model = Observation
+        include_relationships = True
+        load_instance = True
+        #pg_session: session = create_pg_session()
+        sqla_session: session = create_pg_session()
+
+
 class Person(Base):
     """ Platform class """
     __tablename__ = 'accounts'
@@ -30,9 +66,10 @@ class Person(Base):
     login = Column(String(255))
     timestamp = Column('updated_at', DateTime, default=datetime.utcnow,
                        onupdate=datetime.utcnow)
+
     def __repr__(self):
         return "<User(name='%s', lastname='%s')>" % (
-                                self.login, self.lname)
+            self.login, self.lname)
 
 
 class PersonSchema(SQLAlchemyAutoSchema):