Migrating to
PowerBuilder 8
This document describes how to migrate applications to
Powerbuilder
8, using the Migrations Assistant.
Migrating to
Powerbuilder 8
When migrating to PB 8.0 there is a new concept of a
workspace and a
target. A workspace is a type of container that can hold a
number of
targets. Each target can be its own PowerBuilder application, a
list
of PowerBuilder objects, or a web site. When migrating to PB8 you
will need to create a new workspace first. To do this, select
File>New from the menu and on the Workspace tab select Workspace.
After you create a workspace, select File>New from the menu and on
the Target tab select 'Existing Application'. Browse to your existing
application and select the PBL to migrate. When prompted, add the
necessary libraries to the library list for the previously selected
PBL.
After the migration is complete you should see your PBL listed
as a new
target in the Workspace view. From here you can open
objects, add them, and
remove them just as you always could in
previous versions.
To migrate an
application from PowerBuilder 7.x or PowerBuilder 6.x,
select Existing
Application from the New dialog box and follow the
instructions in the
wizard. The Migrate Application dialog box
displays when you have completed
the wizard.
For existing targets, select the target you want to migrate in
the
Library painter and then select Entry>Target>Migrate from the menu
bar.
Migrate Application Dialog Box:
Description: Migrates the
selected application libraries to the
current version of PowerBuilder.
Dialog options
Browse
Click to search for additional libraries that
you want to migrate.
You can select and delete libraries from the list of
those to be
migrated. Libraries that aren't in the application search path
will
not appear in the list of libraries to be migrated. You can open the
Application painter and select an application with a search path that
contains the libraries you want to migrate or modify the library
search
path of the current application.
Messages
If any errors or warnings
messages are generated, they are displayed.
You can choose to display
informational and obsolete messages.
Information
Check if you want to
see informational messages about the migration.
You can save this
information to a file or send it directly to a
printer.
Obsolete
Check if you want to see messages about obsolete code in your
application. Obsolete code uses constructs that will not be available
in
a future release of PowerBuilder.
Using the Migration Assistant:
The
Migration Assistant scans PowerBuilder libraries (PBLs) and
highlights usage
of obsolete syntax, such as obsolete functions and
events. Functions and
events that become obsolete in a specific
version of PowerBuilder still work
in that version but may not work
in future versions. If you plan to maintain
an application in the
future, it's best to use current syntax and events.
You can use the
Migration Assistant to scan PBLs that were created and saved
in any
version of PowerBuilder.
You choose the type of syntax to search
for and the Migration
Assistant generates a report that shows where the
obsolete syntax is
used and, if appropriate, suggests replacement syntax.
You can print
the report or save it to a file.
You can check for PFC,
FUNCky, or PowerScript syntax that became
obsolete in PowerBuilder 6, 7, or
8. If you select PowerScript and
Version 8, the Migration Assistant also
checks for usage of reserved
words that have been added in PowerBuilder 8.
You can also perform a custom search by specifying the strings you
want
to search for in a text file. Each string you want to search for
must be on
a new line. You can specify a replacement string on the
same line, separated
from the search string by a tab character.
The Migration Assistant is
available on the Tool page of the New
dialog box.
¨To use the Migration
Assistant:
1. Select File>New to open the New dialog box, then select
Migration
Assistant on the Tool page.
2. On the Search for Syntax of
Type page, specify the type of syntax
to be verified and click Next.
3.
If you selected PFC, FUNCky, or PowerScript syntax, the Migration
Assistant
can check for syntax that became obsolete in PowerBuilder
Versions 6, 7,
and/or 8. On the Select Versions page, specify which
versions you want to
check and click Next.
Or
If you selected Syntax in Custom File, specify
the file on the
Specify Custom Search File pageand click Next.
4. On the
Specify Libraries to be Searched page, locate the libraries
you want to
search in the left pane, double-click them or drag them
to the right pane,
and click Next.
5. On the Ready to Search page, check that the search
criteria are
what you want and click Finish.
The Migration Assistant
Search Results page displays the PBLs,
objects, and lines of code where
obsolete syntax was found and shows
the suggested replacement syntax, if
any.
6. Modify your code to use current syntax.
Working with Target and
Workspaces:
To Create a new workspace: Select Workspace on the Workspace tab
in
the New dialog box.
To Open an existing workspace: Select Open
Workspace from the File
menu or the popup menu for the workspace to browse
the file system,
or select File>Recent Workspaces and pick a workspace
from the list.
To Create a new target: Select the target type from the
Target tab in
the New dialog box.
To Add an existing target to the
workspace: Select Add Target from
the popup menu for the workspace. In the
Add Target to Workspace
dialog box, select the target file (.pbt) you want
to add. If the
target was built in a previous release, the Migrate
Application
dialog box opens.
To Migrate an existing PowerScript
application and add it to the
workspace as a target: Select Existing
Application from the Target
tab in the New dialog box. In the wizard select
the PBL and
application you want to migrate. Use the browse button (...) on
the
Set Library Search Path page to select additional PBLs. If the
application was built in a previous release, the Migrate Application
dialog box opens.
To Migrate an existing PowerSite 7.1 project to a new
Web target and
add it to the workspace: Select Migrate PowerSite 7.1 Project
from
the Target tab in the New dialog box
.
To Remove a target from
the workspace: Select Remove Target from the
popup menu for the target.
To Add a library to the library list for a PowerScript target: Select
Properties from the popup menu for the target and click Browse on the
Library List page to locate the library
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