Change ref and alt field types

in Variant model

docs/CHANGELOG.rst

@@ -17,6 +17,7 @@ Added
 
 Changed
 -------
+- Change ref and alt field types in Variant model
 
 Fixed
 -----

resolwe_bio/variants/migrations/0008_alter_variant_alternative_alter_variant_reference.py

@@ -0,0 +1,26 @@
+# Generated by Django 4.2.13 on 2024-11-05 12:55
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        (
+            "resolwe_bio_variants",
+            "0007_alter_variant_alternative_alter_variant_reference",
+        ),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name="variant",
+            name="alternative",
+            field=models.TextField(),
+        ),
+        migrations.AlterField(
+            model_name="variant",
+            name="reference",
+            field=models.TextField(),
+        ),
+    ]

resolwe_bio/variants/models.py

@@ -18,8 +18,6 @@
 SPECIES_MAX_LENGTH = 50
 GENOME_ASSEMBLY_MAX_LENGTH = 20
 CHROMOSOME_MAX_LENGTH = 20
-REFERENCE_MAX_LENGTH = 150
-ALTERNATIVE_MAX_LENGTH = 150
 
 # Metadata
 VARIANT_DATA_SOURCE_MAX_LENGTH = 100
@@ -66,10 +64,10 @@ class Variant(AuditModel):
     position = models.PositiveBigIntegerField()
 
     #: reference
-    reference = models.CharField(max_length=REFERENCE_MAX_LENGTH)
+    reference = models.TextField()
 
     #: alternative
-    alternative = models.CharField(max_length=ALTERNATIVE_MAX_LENGTH)
+    alternative = models.TextField()
 
     class Meta:
         """Add constraint for composite key."""