script to remove duplicated layout displays

bin/remove_duplicate_layout_displays.py

@@ -0,0 +1,30 @@
+#!/opt/bin/python
+
+# This is to fix an issue where some layouts have duplicated display members, if the user
+# saved layouts in the layout arranger when the duplcation bug was active (https://github.com/IGS/gEAR/issues/768)
+
+import sys
+
+from pathlib import Path
+lib_path = Path(__file__).resolve().parents[1].joinpath('lib')
+
+sys.path.append(str(lib_path))
+
+import geardb
+
+conn = geardb.Connection()
+cursor = conn.get_cursor()
+
+# https://www.tutorialspoint.com/mysql/mysql-delete-duplicate-records.htm
+qry = """
+DELETE FROM layout_displays ld1
+INNER JOIN layout_displays ld2
+WHERE ld1.layout_id = ld2.layout_id
+AND ld1.display_id = ld2.display_id
+AND ld1.start_col = ld2.start_col
+AND ld1.grid_width = ld2.grid_width
+AND ld1.start_row = ld2.start_row
+AND ld1.grid_height = ld2.grid_height
+AND ld1.id > ld2.id
+"""
+cursor.execute(qry)