type/base: allow rrdtool graph -l (lower-limit) to be configured via config or plugin json

Closes #104

1 files changed, 4 insertions, 1 deletions

diff --git a/type/Base.class.php b/type/Base.class.php
index 1452d43..8d51121 100644
--- a/type/Base.class.php
+++ b/type/Base.class.php
@@ -284,10 +284,13 @@ class Type_Base {
                         $rrdgraph[] = '--base';
                         $rrdgraph[] = $this->base;
                 }
+                if (!array_search('-l', $rrdgraph)) {
+                        $rrdgraph[] = '-l';
+                        $rrdgraph[] = '0';
+                }
                 $rrdgraph = array_merge($rrdgraph, array(
                         '-w', is_numeric($this->width) ? $this->width : 400,
                         '-h', is_numeric($this->height) ? $this->height : 175,
-                        '-l', '0',
                         '-t', $this->rrd_title
                 ));
                 if ($this->rrd_vertical) {