Use ORM for applicants

lib/domain/Applicant.py

@@ -0,0 +1,31 @@
+from peewee import CharField, UUIDField, SmallIntegerField, TextField, ForeignKeyField, JOIN
+
+from lib.domain.Town import Town
+from lib.domain.BaseModel import BaseModel
+from lib.domain.ZipCode import ZipCode
+
+
+class Applicant(BaseModel):
+    class Meta:
+        table_name = "applicants"
+
+    id = UUIDField(primary_key=True)
+    title = SmallIntegerField(default=0)
+    first_name = CharField(null=False)
+    last_name = CharField(null=False)
+    street = CharField()
+    house_number = CharField()
+    zip_code = ForeignKeyField(ZipCode, column_name="zip_code", null=True)
+    phone_number = CharField()
+    mobile_number = CharField()
+    email_address = CharField()
+    salutation = TextField(null=False)
+
+    @classmethod
+    def select_table_data(cls):
+        return (
+            Applicant
+            .select(Applicant.id, Applicant.first_name, Applicant.last_name, ZipCode.id, ZipCode.zip_code, Town.town)
+            .join(ZipCode, join_type="LEFT JOIN")
+            .join(Town, join_type="LEFT JOIN")
+        )

lib/domain/BaseModel.py

@@ -0,0 +1,8 @@
+from peewee import Model, MySQLDatabase
+
+database = MySQLDatabase(None)
+
+
+class BaseModel(Model):
+    class Meta:
+        database = database

lib/domain/Country.py

@@ -0,0 +1,14 @@
+from peewee import AutoField, CharField
+
+from lib.domain.BaseModel import BaseModel
+
+
+class Country(BaseModel):
+    class Meta:
+        table_name = "country"
+    id = AutoField(column_name="countryid")
+    name = CharField(max_length=200, unique=True)
+    name_short = CharField(max_length=100, column_name="countryshort")
+    nationality = CharField(max_length=100)
+    iso2 = CharField(max_length=2, unique=True)
+    iso3 = CharField(max_length=3, unique=True)

lib/domain/Town.py

@@ -0,0 +1,12 @@
+from peewee import AutoField, CharField, ForeignKeyField
+
+from lib.domain.BaseModel import BaseModel
+from lib.domain.Country import Country
+
+
+class Town(BaseModel):
+    class Meta:
+        table_name = "address"
+    id = AutoField(column_name="addressid")
+    town = CharField(max_length=50, column_name="city")
+    country = ForeignKeyField(Country, column_name="countryid",  backref="towns")

lib/domain/ZipCode.py

@@ -0,0 +1,13 @@
+from peewee import AutoField, CharField, ForeignKeyField
+
+from lib.domain.BaseModel import BaseModel
+from lib.domain.Town import Town
+
+
+class ZipCode(BaseModel):
+    class Meta:
+        table_name = "postcode"
+
+    id = AutoField(column_name="postcodeid")
+    zip_code = CharField(max_length=15, column_name="postcode")
+    town = ForeignKeyField(Town, backref="zip_codes", column_name="addressid")