Changeset 4383 for waeup/branches/ulif-rewrite

Timestamp:

28 Jun 2009, 00:02:27 (15 years ago)

Author:

uli

Message:

Test delCourseRef().

File:

• waeup/branches/ulif-rewrite/src/waeup/university/certificate.txt (modified) (1 diff)

waeup/branches/ulif-rewrite/src/waeup/university/certificate.txt

@@ -399 +399 @@
 As we can see, the course was also removed from the certificate.
 
+We can of course also remove existing courses from certificates by
+using :meth:`delCourseRef`. This will not remove the same course from
+any course container:
+
+    >>> mycourses = newdbroot['mydept'].courses
+    >>> mycert = newdbroot['mydept'].certificates['MYCERT']
+    >>> mycourses.addCourse(mycourse)
+    >>> mycert.addCourseRef(mycourse)
+    >>> c1 = mycourses['MYCOURSE']
+    >>> c2 = mycert['MYCOURSE'].course
+    >>> c1 is c2
+    True
+
+    >>> mycert.delCourseRef('MYCOURSE')
+
+The certificate now has no ``MYCOURSE`` course anymore, while the
+courses container still has:
+
+    >>> 'MYCOURSE' in mycert.keys()
+    False
+
+    >>> mycourses['MYCOURSE']
+    <waeup.university.course.Course object at 0x...>
+
 Clean up: