Adds migration engine for peewee ORM

[osm/MON.git] / osm_mon / migrations / 001_initial.py

diff --git a/osm_mon/migrations/001_initial.py b/osm_mon/migrations/001_initial.py
new file mode 100644 (file)
index 0000000..a8b7290
--- /dev/null
+++ b/osm_mon/migrations/001_initial.py
@@ -0,0 +1,79 @@
+"""Peewee migrations -- 001_initial.py.
+
+Some examples (model - class or model name)::
+
+    > Model = migrator.orm['model_name']            # Return model in current state by name
+
+    > migrator.sql(sql)                             # Run custom SQL
+    > migrator.python(func, *args, **kwargs)        # Run python code
+    > migrator.create_model(Model)                  # Create a model (could be used as decorator)
+    > migrator.remove_model(model, cascade=True)    # Remove a model
+    > migrator.add_fields(model, **fields)          # Add fields to a model
+    > migrator.change_fields(model, **fields)       # Change fields
+    > migrator.remove_fields(model, *field_names, cascade=True)
+    > migrator.rename_field(model, old_field_name, new_field_name)
+    > migrator.rename_table(model, new_table_name)
+    > migrator.add_index(model, *col_names, unique=False)
+    > migrator.drop_index(model, *col_names)
+    > migrator.add_not_null(model, *field_names)
+    > migrator.drop_not_null(model, *field_names)
+    > migrator.add_default(model, field_name, default)
+
+"""
+
+import peewee as pw
+
+SQL = pw.SQL
+
+
+def migrate(migrator, database, fake=False, **kwargs):
+    """Write your migrations here."""
+
+    @migrator.create_model
+    class Alarm(pw.Model):
+        id = pw.AutoField()
+        uuid = pw.CharField(max_length=255, unique=True)
+        name = pw.CharField(max_length=255)
+        severity = pw.CharField(max_length=255)
+        threshold = pw.FloatField()
+        operation = pw.CharField(max_length=255)
+        statistic = pw.CharField(max_length=255)
+        monitoring_param = pw.CharField(max_length=255)
+        vdur_name = pw.CharField(max_length=255)
+        vnf_member_index = pw.CharField(max_length=255)
+        nsr_id = pw.CharField(max_length=255)
+
+        class Meta:
+            table_name = "alarm"
+
+    @migrator.create_model
+    class BaseModel(pw.Model):
+        id = pw.AutoField()
+
+        class Meta:
+            table_name = "basemodel"
+
+    @migrator.create_model
+    class VimCredentials(pw.Model):
+        id = pw.AutoField()
+        uuid = pw.CharField(max_length=255, unique=True)
+        name = pw.CharField(max_length=255)
+        type = pw.CharField(max_length=255)
+        url = pw.CharField(max_length=255)
+        user = pw.CharField(max_length=255)
+        password = pw.CharField(max_length=255)
+        tenant_name = pw.CharField(max_length=255)
+        config = pw.TextField(constraints=[SQL("DEFAULT '{}'")])
+
+        class Meta:
+            table_name = "vimcredentials"
+
+
+def rollback(migrator, database, fake=False, **kwargs):
+    """Write your rollback migrations here."""
+
+    migrator.remove_model('vimcredentials')
+
+    migrator.remove_model('basemodel')
+
+    migrator.remove_model('alarm')