Merge branch 'i69-dbpath-work-everywhere' into 'master'

Function to modify dbConf['dbpath'] to absolute path

See merge request !209

sohstationviewer/conf/dbSettings.py

 import re
+import os
+from pathlib import Path
 
 from sohstationviewer.conf.constants import (WF_1ST, WF_2ND, WF_3RD)
 """
@@ -42,3 +44,20 @@ dbConf = {
             "If D is not defined, dots won't be displayed.\n"
             "If L is not defined, lines will be plotted with color G")}
 }
+
+
+def modify_db_path():
+    """
+    Modify dbpath to absolute path.
+
+    This function is called in case database needs to be used when the working
+    directory is a sub folder of root, sohstationviewer/. The following lines
+    need to be added:
+        from sohstationviewer.conf.dbSettings import modify_db_path
+        modify_db_path()
+    """
+    global dbConf
+    current_file_path = os.path.abspath(__file__)
+    root = Path(current_file_path).parent.parent
+    db_path = [x for x in root.glob('**/soh.db')][0]
+    dbConf['dbpath'] = db_path.as_posix()