AWG Blogs

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    5 months ago
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    9 months ago
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    11 months ago
  • Flyweight vs Singleton - Implementations seems to be virtually identical, differing only in style, where the flyweight object is created and held by associated objects (containers:...
    1 year ago
  • init-param vs context-param - see http://javahash.com/difference-between-servlet-init-and-context-parameter/ for background. Gist: context-param variables are global and accessible thro...
    1 year ago
  • rbenv vs RVM - RVM is responsible not only for changing Ruby versions, but for installing rubies and managing gemsets, as well. ...Along with rbenv [to manage ruby versi...
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Sunday, February 26, 2012

Perl Map Chaining to Obtain Unique Subkeys

Say you have a file with contents:

AABB 7323|Jan 28, 2003|Random Data Here
YZZ 2852|Mar 3, 2007|Data Data
YZZ 2559|Aug 2, 2010|More Data
AABB 2383|Jun 1, 2011|Data Field Data

The following perl script can list the unique key types:

#!/usr/bin/perl

use strict;
use warnings;

my $filename = "testinput.txt";
open (ROWS, "<$filename");

my $delimiter = '\|';

my %values = map {split / /, $_ } keys %{{map { split $delimiter, $_, 2 } <ROWS>}};
my @uniques = keys %values;
print join ("\n", @uniques);

exit 0;

which outputs:

AABB
YZZ

Note: when assign an array to a hash lvalue, the array elements are assign sequentially in key value pairs, since there's no such thing as hash context. see http://tutorials.freeskills.com/professional-perl-part-3-prototypes.htm

Tuesday, February 14, 2012

Master Pages in Subsites

You may get "The system master page setting currently applied to this site is invalid. Please select a new master page and apply it" in _layouts/ChangeSiteMasterPage.aspx, when having set a subsite of a site collection (with publishing infrastructure enabled) to use a master page within the subsite relative _catalogs/masterpage/ folder. It appears MOSS 2007 publishing infrastructure does not fully support subsites utilizing master pages from subsite master page galleries, hence the error.


To avoid this error, ensure that every subsite in a site collection with Publishing Infrastructure enabled is using a master page that resides in the master page gallery of the root site.

Ironically, doing so however, causes another error in SharePoint Designer "The URL ../../_catalogs/masterpage is invalid" when editing the subsite in SPD. Therefore, it appears that editing subsites in site collections, that have Publishing Infrastructure enabled, in SPD is not supported.

Monday, February 13, 2012

Setting Default DisplayCategory for Create Site Page

In MOSS 2007, one way to have your template category selected by default when click "Create Site" from Site Actions when Office SharePoint Server Publishing is enabled is edit 12\TEMPLATE\LAYOUTS\EditingMenu\SiteAction.xml (Backup first!). Edit the ConsoleNode item whose action is "cms:CreateNewSiteAction" and ID is "wsaCreateSite." Add (or replace) two attributes:
IsSiteRelative="true"
NavigateUrl="_layouts/newsbweb.aspx?DisplayCategory=MyCustomTemplates"

Note, the IsSiteRelative attribute is required so that subsites don't get file not found errors.

Finally, recycle the app pool.

Another option that applies to site collections only is to edit _catalogs\masterpage\Editing Menu\CustomSiteAction.xml, adding the Console tags with custom content as needed.

Tuesday, February 7, 2012

Publishing Enabled on Root Site

I noticed that unless Office SharePoint Server Publishing is enabled on the root site in a site collection, subsites do not show the Pages Library as a "List Type" in the Content Query Tool Part, regardless of whether Publishing is enabled as site feature in the subsite.

I have not done exhaustive testing to see whether this is related to the initial site definition that was applied, but at any rate, this appears to be a bug (or "gotcha") in MOSS 2007.

Thursday, February 2, 2012

LookupColumn fields require no FieldRef?

That appears to be the case when writing the CAML for a custom field.

I asked the question as it concerns FileLeafRef on MSDN. We'll see if I get a response or pointed to some more documentation.

I did notice in
C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\12\TEMPLATE\XML\FLDTYPES.XML that the definition for File has its InternalType set to Lookup, so maybe that's my answer.

What got me curious is observing that updates to my computed column via /_layouts/FldEdit.aspx caused the whole FileRefs element to be removed! I noticed that the doclib list continued to show the field, but the list did not. Presumably because the fieldref was not needed...

More questions along these lines:

Why is the FieldRef Name="Created" necessary in a custom computed "Name" field in a document library, but not in a custom computed "Title" field in a List?

How come <Column Name='Created_x0020_Date' /> causes "Exception from HRESULT: 0x80020009 (DISP_E_EXCEPTION)" YSOD, when clearly the documentation states that it should return an integer, since it's a lookup type.