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# Generated by Django 2.2.10 on 2020-02-25 15:51 |
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import ast |
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from django.db import migrations |
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def forwards_func(apps, schema_editor): |
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# We get the model from the versioned app registry; |
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# if we directly import it, it'll be the wrong version |
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ValidationSummary = apps.get_model( |
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"validation", |
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"ValidationSummary") |
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db_alias = schema_editor.connection.alias |
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# Update validation summary |
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for summary in ValidationSummary.objects.using(db_alias): |
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new_messages = [] |
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for message in summary.old_messages: |
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data = ast.literal_eval(message) |
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new_messages.append(data) |
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# now update new_messages column |
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summary.new_messages = new_messages |
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summary.save() |
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def reverse_func(apps, schema_editor): |
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ValidationSummary = apps.get_model( |
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"validation", |
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"ValidationSummary") |
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db_alias = schema_editor.connection.alias |
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# Update validation summary |
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for summary in ValidationSummary.objects.using(db_alias): |
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old_messages = [] |
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for message in summary.new_messages: |
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old_messages.append(message) |
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# now update old_messages column |
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summary.old_messages = old_messages |
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summary.save() |
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class Migration(migrations.Migration): |
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dependencies = [ |
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('validation', '0002_auto_20200225_1651'), |
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] |
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operations = [ |
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migrations.RunPython(forwards_func, reverse_func), |
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] |
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