Merge pull request #789 from gemini-hlsw/enhancement/set-plotly-theme

Enhancement: Extend settings to set default plotly theme.

tom_common/apps.py

@@ -1,5 +1,18 @@
 from django.apps import AppConfig
+from django.conf import settings
+import plotly.io as pio
 
 
 class TomCommonConfig(AppConfig):
     name = 'tom_common'
+
+    def ready(self):
+        # Set default plotly theme on startup
+        valid_themes = ['plotly', 'plotly_white', 'plotly_dark', 'ggplot2', 'seaborn', 'simple_white', 'none']
+
+        # Get the theme from settings, default to "plotly_white".
+        plotly_theme = getattr(settings, 'PLOTLY_THEME', 'plotly_white')
+        if plotly_theme not in valid_themes:
+            plotly_theme = 'plotly_white'
+
+        pio.templates.default = plotly_theme

tom_setup/templates/tom_setup/settings.tmpl

@@ -322,6 +322,10 @@ REST_FRAMEWORK = {
     'PAGE_SIZE': 100
 }
 
+# Default Plotly theme setting, can set to any valid theme:
+# 'plotly', 'plotly_white', 'plotly_dark', 'ggplot2', 'seaborn', 'simple_white', 'none'
+PLOTLY_THEME = 'plotly_white'
+
 try:
     from local_settings import * # noqa
 except ImportError: