alter to text field

contest/migrations/0009_auto_20180501_0436.py

@@ -0,0 +1,35 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.11.3 on 2018-05-01 04:36
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('contest', '0008_contest_allowed_ip_ranges'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='contest',
+            name='password',
+            field=models.TextField(null=True),
+        ),
+        migrations.AlterField(
+            model_name='contest',
+            name='rule_type',
+            field=models.TextField(),
+        ),
+        migrations.AlterField(
+            model_name='contest',
+            name='title',
+            field=models.TextField(),
+        ),
+        migrations.AlterField(
+            model_name='contestannouncement',
+            name='title',
+            field=models.TextField(),
+        ),
+    ]

contest/models.py

@@ -9,13 +9,13 @@ from utils.models import RichTextField
 
 
 class Contest(models.Model):
-    title = models.CharField(max_length=40)
+    title = models.TextField()
     description = RichTextField()
     # show real time rank or cached rank
     real_time_rank = models.BooleanField()
-    password = models.CharField(max_length=30, blank=True, null=True)
+    password = models.TextField(null=True)
     # enum of ContestRuleType
-    rule_type = models.CharField(max_length=36)
+    rule_type = models.TextField()
     start_time = models.DateTimeField()
     end_time = models.DateTimeField()
     create_time = models.DateTimeField(auto_now_add=True)
@@ -88,7 +88,7 @@ class OIContestRank(AbstractContestRank):
 
 class ContestAnnouncement(models.Model):
     contest = models.ForeignKey(Contest)
-    title = models.CharField(max_length=128)
+    title = models.TextField()
     content = RichTextField()
     created_by = models.ForeignKey(User)
     visible = models.BooleanField(default=True)