Hey all,
I'm trying to implement handling for major upgrades for a web application
installation.
The use case I'm currently testing is:
1. User installs v1.0.0 of the application
- Install gathers information about the virtual
directory and database server
- App is installed, vdir created, db created,
web.config is updated with connection string
and encrypted
2. User installs v1.0.1 of the application
- no prompts for virtual directory or database
server (upgrading... should use existing
vdir and db).
- Old version is removed as part of the install.
The challenge I'm facing is the web.config file... I _need_ to keep the
current version from the v1.0.0 install.
So... I've decided that during Uninstall, if uninstalling because of a
backup, a backup of the web.config file will be made (filesystemobject
copyfile). This isn't working out at all... the CA seem to get the TARGETDIR
property.
Here's the backup CA definition:
<CustomAction
Id="BackupWebConfig"
Return="check"
Execute="deferred"
Impersonate="yes"
BinaryKey="Callwebconfig"
VBScriptCall="Backup"
/>
<CustomAction
Id="SetCAP_BackupWebConfig"
Property="BackupWebConfig"
Value="[TARGETDIR]"
/>
Here's the relevant InstallExecuteSequence entries:
<Custom Sequence="265" Action="SetCAP_RestoreWebConfig" />
... snip ...
<InstallInitialize Sequence="1500" />
<RemoveExistingProducts Sequence="1550" />
<Custom Action="BackupWebConfig" Sequence="1555">
REMOVE="ALL" AND UPGRADINGPRODUCTCODE
</Custom>
In the VBScript I have the following debug messages:
msgbox "CustomActionData: " & Session.Property("CustomActionData")
msgbox "TARGETDIR: " & Session.Property("TARGETDIR")
Both of which display empty strings!
So... from my point of view... it looks like an uninstall that is initiated
by RemoveExistingProducts doesn't quite operate like a normal uninstall...
but that doesn't make much sense.
Anyone have any suggestions?
Regards,
Rob
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