Improve filter validation for test report

InvenTree/report/migrations/0005_auto_20210119_0815.py

@@ -0,0 +1,35 @@
+# Generated by Django 3.0.7 on 2021-01-18 21:15
+
+import django.core.validators
+from django.db import migrations, models
+import report.models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('report', '0004_auto_20200823_1104'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='testreport',
+            name='description',
+            field=models.CharField(help_text='Report template description', max_length=250, verbose_name='Description'),
+        ),
+        migrations.AlterField(
+            model_name='testreport',
+            name='filters',
+            field=models.CharField(blank=True, help_text='Part query filters (comma-separated list of key=value pairs)', max_length=250, validators=[report.models.validate_stock_item_report_filters], verbose_name='Filters'),
+        ),
+        migrations.AlterField(
+            model_name='testreport',
+            name='name',
+            field=models.CharField(help_text='Template name', max_length=100, unique=True, verbose_name='Name'),
+        ),
+        migrations.AlterField(
+            model_name='testreport',
+            name='template',
+            field=models.FileField(help_text='Report template file', upload_to=report.models.rename_template, validators=[django.core.validators.FileExtensionValidator(allowed_extensions=['html', 'htm', 'tex'])], verbose_name='Template'),
+        ),
+    ]