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41 lines
1.4 KiB
Python
41 lines
1.4 KiB
Python
from django.db import migrations, models
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def set_null_values(apps, schema_editor):
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"""
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Replace empty strings with null values.
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"""
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Circuit = apps.get_model('circuits', 'Circuit')
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CircuitGroupAssignment = apps.get_model('circuits', 'CircuitGroupAssignment')
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CircuitTermination = apps.get_model('circuits', 'CircuitTermination')
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db_alias = schema_editor.connection.alias
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Circuit.objects.using(db_alias).filter(distance_unit='').update(distance_unit=None)
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CircuitGroupAssignment.objects.using(db_alias).filter(priority='').update(priority=None)
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CircuitTermination.objects.using(db_alias).filter(cable_end='').update(cable_end=None)
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class Migration(migrations.Migration):
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dependencies = [
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('circuits', '0045_circuit_distance'),
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]
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operations = [
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migrations.AlterField(
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model_name='circuit',
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name='distance_unit',
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field=models.CharField(blank=True, max_length=50, null=True),
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),
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migrations.AlterField(
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model_name='circuitgroupassignment',
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name='priority',
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field=models.CharField(blank=True, max_length=50, null=True),
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),
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migrations.AlterField(
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model_name='circuittermination',
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name='cable_end',
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field=models.CharField(blank=True, max_length=1, null=True),
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),
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migrations.RunPython(code=set_null_values, reverse_code=migrations.RunPython.noop),
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]
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