Bug Fix: EPG channel name vlaue too long for type character varying(255) (Fixes #1134)

CHANGELOG.md

@@ -7,6 +7,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+### Fixed
+
+- **EPG channel name truncation**: EPG sources that include long `<display-name>` values (e.g. event-based channels with descriptions appended to the name) would crash the channel-parse task with a `value too long for type character varying(255)` PostgreSQL error and silently discard the entire batch. The `EPGData.name`, `Stream.name`, and `Channel.name` fields have been widened to 512 characters, and names exceeding this limit are now truncated with a warning log rather than aborting the import. (Fixes #1134)
+
 ### Added
 
 - **Plugin warning & disclaimer components**: extracted shared plugin warning UI into a new `PluginWarnings.jsx` component and normalized warning/disclaimer usage across all plugin action modals. New reusable components: `PluginSecurityWarning` (untrusted code), `PluginSupportDisclaimer` (community support scope), `PluginDowngradeWarning` (version downgrade), `PluginInfoNote` (informational), and `PluginRestartWarning` (backend restart on import). Updated `Plugins.jsx`, `AvailablePluginCard.jsx`, and `PluginCard.jsx` to use the shared components. — Thanks [@sethwv](https://github.com/sethwv)

apps/channels/migrations/0035_alter_channel_name_alter_stream_name.py

@@ -0,0 +1,23 @@
+# Generated by Django 6.0.4 on 2026-04-21 14:16
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('dispatcharr_channels', '0034_remove_stream_dispatcharr_stream_id_idx_and_more'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='channel',
+            name='name',
+            field=models.CharField(max_length=512),
+        ),
+        migrations.AlterField(
+            model_name='stream',
+            name='name',
+            field=models.CharField(default='Default Stream', max_length=512),
+        ),
+    ]

apps/channels/models.py

@@ -56,7 +56,7 @@ class Stream(models.Model):
     Represents a single stream (e.g. from an M3U source or custom URL).
     """
 
-    name = models.CharField(max_length=255, default="Default Stream")
+    name = models.CharField(max_length=512, default="Default Stream")
     url = models.URLField(max_length=4096, blank=True, null=True)
     m3u_account = models.ForeignKey(
         M3UAccount,
@@ -294,7 +294,7 @@ class ChannelManager(models.Manager):
 
 class Channel(models.Model):
     channel_number = models.FloatField(db_index=True)
-    name = models.CharField(max_length=255)
+    name = models.CharField(max_length=512)
     logo = models.ForeignKey(
         "Logo",
         on_delete=models.SET_NULL,

apps/epg/migrations/0022_alter_epgdata_name.py

@@ -0,0 +1,18 @@
+# Generated by Django 6.0.4 on 2026-04-21 14:16
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('epg', '0021_epgsource_priority'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='epgdata',
+            name='name',
+            field=models.CharField(max_length=512),
+        ),
+    ]

apps/epg/models.py

@@ -137,7 +137,7 @@ class EPGData(models.Model):
     # Removed the Channel foreign key. We now just store the original tvg_id
     # and a name (which might simply be the tvg_id if no real channel exists).
     tvg_id = models.CharField(max_length=255, null=True, blank=True, db_index=True)
-    name = models.CharField(max_length=255)
+    name = models.CharField(max_length=512)
     icon_url = models.URLField(max_length=500, null=True, blank=True)
     epg_source = models.ForeignKey(
         EPGSource,

apps/epg/tasks.py

@@ -966,6 +966,7 @@ def parse_channels_only(source):
         batch_size = 500  # Process in batches to limit memory usage
         progress = 0  # Initialize progress variable here
         icon_url_max_length = EPGData._meta.get_field('icon_url').max_length  # Get max length for icon_url field
+        name_max_length = EPGData._meta.get_field('name').max_length  # Get max length for name field
 
         # Track memory at key points
         if process:
@@ -1022,6 +1023,10 @@ def parse_channels_only(source):
                         if not display_name:
                             display_name = tvg_id
 
+                        if display_name and len(display_name) > name_max_length:
+                            logger.warning(f"EPG display name too long ({len(display_name)} > {name_max_length}), truncating: {display_name[:80]}...")
+                            display_name = display_name[:name_max_length]
+
                         # Use lazy loading approach to reduce memory usage
                         if tvg_id in existing_tvg_ids:
                             # Only fetch the object if we need to update it and it hasn't been loaded yet

apps/m3u/tasks.py

@@ -1087,6 +1087,8 @@ def process_m3u_batch_direct(account_id, batch, groups, hash_keys):
     streams_to_update = []
     stream_hashes = {}
 
+    name_max_length = Stream._meta.get_field('name').max_length
+
     logger.debug(f"Processing batch of {len(batch)} for M3U account {account_id}")
     if compiled_filters:
         logger.debug(f"Using compiled filters: {[f[1].regex_pattern for f in compiled_filters]}")
@@ -1099,6 +1101,11 @@ def process_m3u_batch_direct(account_id, batch, groups, hash_keys):
                 logger.warning(f"Skipping stream '{name}': URL too long ({len(url)} characters, max 4096)")
                 continue
 
+            # Truncate name if it exceeds the model field limit
+            if name and len(name) > name_max_length:
+                logger.warning(f"Stream name too long ({len(name)} > {name_max_length}), truncating: {name[:80]}...")
+                name = name[:name_max_length]
+
             tvg_id, tvg_logo = get_case_insensitive_attr(
                 stream_info["attributes"], "tvg-id", ""
             ), get_case_insensitive_attr(stream_info["attributes"], "tvg-logo", "")