Use default:"" to filter unknown NFPA warnings in LaTeX inventories.

Because `None` makes the columns wider and distracts from known
warning levels.

diff --git a/chemdb/templates/chemdb/doc/inventory.tex b/chemdb/templates/chemdb/doc/inventory.tex
index 781d70bd254895ec92d8f6fab3733eac7795dfb4..175597eb7d1c49724b14a9ee258ef041bc2c0f76 100644 (file)
--- a/chemdb/templates/chemdb/doc/inventory.tex
+++ b/chemdb/templates/chemdb/doc/inventory.tex
@@ -40,9 +40,9 @@ ID & Name & Amount & H & F & R & S & M & C & T \\
 {{ chemical_instance.id }} &
   {{ chemical_instance.chemical.abbrev|latex_safe|safe }} &
   {{ chemical_instance.amount }} &
-  {{ chemical_instance.chemical.health }} &
-  {{ chemical_instance.chemical.fire }} &
-  {{ chemical_instance.chemical.reactivity }} &
+  {{ chemical_instance.chemical.health|default:"" }} &
+  {{ chemical_instance.chemical.fire|default:"" }} &
+  {{ chemical_instance.chemical.reactivity|default:"" }} &
   {{ chemical_instance.chemical.special.all|latex_specials }} &
   {{ chemical_instance.chemical.mutagen|yesno:"M," }} &
   {{ chemical_instance.chemical.carcinogen|yesno:"C," }} &