adding an sql script for sanitizing the prod mysql db

util/vpc-tools/sanitize-db.sql

+SET FOREIGN_KEY_CHECKS=0;
+
+/* 
+  Truncate the courseware_studentmodulehistory table since
+  it is only needed for analytics    
+*/
+
+TRUNCATE courseware_studentmodulehistory;
+
+/*
+  Rewrite all emails to used the SES simulator, simulating success.
+  Anonymize other user information
+*/
+
+UPDATE wwc.auth_user
+    set email = concat('success+',cast(id AS CHAR),'@simulator.amazonses.com')
+        where email not like ('%@edx.org'),
+    set username = concat('user-',cast(id AS CHAR)
+        where email not like ('%@edx.org'),
+    set first_name = concat('user-',cast(id AS CHAR)
+        where email not like ('%@edx.org'),
+    set last_name = concat('user-',cast(id AS CHAR)
+        where email not like ('%@edx.org'),
+    set password = null
+        where email not like ('%@edx.org'),
+    set last_login = null
+        where email not like ('%@edx.org'),
+    set date_joined = null
+        where email not like ('%@edx.org');
+
+/*
+   There are a handful of email changes requests captured in flight.
+*/
+
+UPDATE wwc.student_pendingemailchange
+    set new_email = concat('success+',cast(user_id AS CHAR),'@simulator.amazonses.com');
+
+/*
+   Differs slightly to prevent creating duplicate email records. 
+   User id isn't stored here and this email is probably not used for
+   sending email, but cannot hurt.
+*/
+
+UPDATE wwc.student_courseenrollmentallowed
+    set email = concat('success+','courseenrollmentallowed_',cast(id AS CHAR),'@simulator.amazonses.com');
+
+/* 
+  Set the name to the userid and empty the other fields
+  This will also empty user profile data for edx employees
+*/
+
+UPDATE wwc.auth_userprofile
+    set name = concat('user-',cast(id as CHAR)),
+    set language = "",
+    set location = "",
+    set meta = "",
+    set gender = null,
+    set mailing_address = null,
+    set year_of_birth = null,
+    set level_of_education = null,
+    set goals = null
+    set country = "",
+    set city = null;
+
+/*
+   Grader has its own django core tables.
+*/
+
+UPDATE prod_grader.auth_user
+    set email = concat('success+',cast(id AS CHAR),'@simulator.amazonses.com')
+        where email not like ('%@edx.org'),
+    set username = concat('user-',cast(id AS CHAR)
+        where email not like ('%@edx.org'),
+    set first_name = concat('user-',cast(id AS CHAR)
+        where email not like ('%@edx.org'),
+    set last_name = concat('user-',cast(id AS CHAR)
+        where email not like ('%@edx.org'),
+    set password = null
+        where email not like ('%@edx.org'),
+    set last_login = null
+        where email not like ('%@edx.org'),
+    set date_joined = null
+        where email not like ('%@edx.org');
+
+
+SET FOREIGN_KEY_CHECKS=1;