Templatetags for better field rendering

templatetags/asset_templatetags.py

@@ -0,0 +1,21 @@
+from django import template
+from django.template.defaultfilters import stringfilter
+from django.utils.safestring import SafeData, mark_safe
+from django.utils.text import normalize_newlines
+from django.utils.html import escape
+
+register = template.Library()
+
+
+@register.filter(is_safe=True, needs_autoescape=True)
+@stringfilter
+def linebreaksn(value, autoescape=True):
+    """
+    Convert all newlines in a piece of plain text to jQuery line breaks
+    (`\n`).
+    """
+    autoescape = autoescape and not isinstance(value, SafeData)
+    value = normalize_newlines(value)
+    if autoescape:
+        value = escape(value)
+    return mark_safe(value.replace('\n', '\\n'))