From 747433b523950be79ef79f6db77b6f93351b8344 Mon Sep 17 00:00:00 2001
From: Tamas Gal <tgal@km3net.de>
Date: Sun, 2 Feb 2020 00:03:24 +0100
Subject: [PATCH] Fix empty db issue
---
scripts/ztplot.py | 13 ++++++++-----
1 file changed, 8 insertions(+), 5 deletions(-)
diff --git a/scripts/ztplot.py b/scripts/ztplot.py
index cf3b27b..ca64b19 100755
--- a/scripts/ztplot.py
+++ b/scripts/ztplot.py
@@ -88,11 +88,14 @@ class ZTPlot(kp.Module):
"""Update the lower limits for the Top-10 candidate selection"""
n_candidates = 10
for category in ["overlays", "n_hits", "n_triggered_hits"]:
- lower_limit = self.services["query"](
- "SELECT {cat} FROM {tab} ORDER BY {cat} DESC LIMIT {limit}".
- format(cat=category,
- tab=self.event_selection_table,
- limit=n_candidates))[-1][0]
+ try:
+ lower_limit = self.services["query"](
+ "SELECT {cat} FROM {tab} ORDER BY {cat} DESC LIMIT {limit}".
+ format(cat=category,
+ tab=self.event_selection_table,
+ limit=n_candidates))[-1][0]
+ except IndexError:
+ lower_limit = 0
self.lower_limits[category] = lower_limit
self.cprint("Current limits for the Top-10: {}".format(
--
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