<?php echo views_embed_view(’nombre_vista’ , $display_id = ‘default’); ?>

Cuando
hacemos esta llamada nos genera un html con el contenido de la vista.
Si queremos darle un formato html especial tenemos que generar un
archivo con el nombre view_view–nombre_vista.tpl.php
A esta función llega un objeto con el nombre $view->result, que contiene todo el contenido de nuestra vista.

Por ejemplo si quisieramos mostrar el contenido de la vista en una listado con el title y el teaser, el código seria el siguiente.

<ul class=”destacados_libros”>
<?php if (!empty($title)): ?>
<li class=”top_titulo”><?php print $title; ?></li>
<?php endif; ?>
<?php foreach ($view->result as $row): ?>
<li><?php echo $row->node_revisions_teaser; ?></li>
<li><?php echo $row->node_title;?></li>
<?php endforeach; ?>
</ul>

-- ==================================================================
--
--  This script will execute and SQL query using the psql
--  command and dump the results to a file called /tmp/result.csv
--
-- ==================================================================
--
-- Uses the following psql options:
--   \a toggle between unaligned and aligned output mode
--   \t show only rows
--   \o [FILE] send query results to file or |pipe
--
\a
\t
\pset fieldsep ,
\o /tmp/result.csv

-- query
select ..

To dump the result of the query to a file do:

$ psql -h -U -d -W -f dump2csv.sql

the result of your query will be stored in /tmp/result.csv.

The apps I tried where: kuler and Pixel Perfect. Kuler is an application which stores several hundred color combinations which are all very pretty. Pixel Perfect is a simple application which draws a translucent ruler on the desktop. The ruler can be moved around, resized and you can even change the transparency using the mouse wheel. All worked perfectly under Linux. You can download the source and read the article of how it works here. I still need to test local applications tht make use of Air’s features like the local sqlite database, etc.

What really interests me is to use Air and Flex to build cross platform widgets as well as desktop applications. It seems to me, after having a quick peak at the code that Adobe is really pushing this technology under Linux and is not just writing a half working port for Linux.

I will continue to test is and update this post (or create a new one) with the news. For the moment you can learn more at Adobe labs

In this case, as mentioned, the feature I needed was to enable the trace() method for debugging Flex applications. To achieve this is actually quite simple. You just have to create a file in your home folder, named mm.cfg. When enabled, tracing is done automatically to the file $HOME/.macromedia/Flash_Player/Logs/flashlog.txt (you can, however, modify this location in the mm.cfg file).

The content of a simple, yet functional mm.cfg file sample is given below.

TraceOutPutFileName=$HOME/.macromedia/Flash_Player/Logs/flashlog.txt
ErrorReportingEnable=1
TraceOutputFileEnable=1

There is one more caveat though. The trace() method only works when viewing your flash application in a debugging-enabled
version of the Flash Player (or the flash plugin in mozilla).

As an added bonus, there is a plugin for Firefox, Flash Tracer, that will display a sidebar with the output of the trace() calls. This can be quite handy so not to have to open a terminal just for viewing the log file.

Now that you know the truth, off you go, and happy debugging!

After a while looking at ways to integrate Vim into GTK applications and when I was just about to start a project myself I found the solution to my ‘itch’: Pida. Pida is basically an IDE for Python. The really cool thing about it is that it allows you to choose which editor to use. You get the only two real choices: Vi or Emacs.

In addition to having the editor window with all the powerful editing capabilities of Vi or Emacs you get a side panel which has a list of buffers to edit, a list of projects and a view of the filesystem of the selected project. This way you can easily navigate the filesystem of your project and the open files. If you are using SVN then the state of each file is also displayed and you have a popup menu so it’s easy to do SVN operations on files or directories. By installing a plugin you can also watch pending tickets if you use Trac (which we do). Finally, the icing of the cake is that the applications is written using Python and GTK (PyGTK + Glade to be more specific) and with its plugin system its very easy to extend. If you like programming with Vi then Pida is definitively for you. Check it here: http://pida.co.uk/

Here in Easytech we mostly use The Gimp to read and modify PSD files. The Gimp can read and write PSD files with no problem, preserving layout information, etc. Unfortunately, it has no slice support and completely ignores all slice information stored on the PSD file. After looking a while for an alternative I was disapointed I couldn’t find one. What I did find is a little document which describes an old PSD file format and a C# parser which understands the Slices section of the PSD file. With this information and a hex editor and some sample PSD files I was able to write a little PHP script which basically outputs a list of convert statements which can be used to slice an image.

To use the script:

1. Download the script by clicking HERE.
2. Open the PSD file with The Gimp and save it as a PNG
3. Run this script on the PSD file
4. Run the resulting converts on the PNG file to slice it up

This code is quite simple and was written over a weekend so its quite rudimentary. It has almost no error checking and is more a proof of principle. If later on I need something more sophisticated this code will provide a good starting point.

The first thing I should probably do is split the program into two smaller programs: one to write an XML document describing the slices and a second program that processes this document and writes the convert statements. In addition I should probably create a couple of Classes to make the code more re-usable. Maybe later… for the moment have fun with it!

Lately I’ve been playing a lot with Adobe Flex so I thought it would be a good idea to show you how to setup the Flex SDK on your Linux box and get you going with this cool technology. In case you haven’t heard, Flex is a framework to write Rich Internet Applications (RIAs). Using XML and Actionscript 3.0, you can write rich internet applications which use webservices to communicate with a backend. The programs are compiled using the Flex compiler into an SWF file. Read on to setup Flex under linux…

Programming in Flex is very simple and you only need the Flex SDK, Java and Ant to get started. The good news: it runs great in Linux and it’s free to use. Adobe has recently open sourced it but I’ve only seen a little part of the code. If you would like to program from an IDE you can buy an Eclipse plugin to develop in Flex. There is a new version for Linux which I haven’t tried yet.

Ok, enough said. Lets get started. First you need to have download and installed the latest Java SDK and Ant. Go to http://java.sun.com and http://ant.apache.org/ and get the latest versions. Once you have those installed (you probably already have them) download the Flex SDK. You can get the latest Flex 3 here. The final download is the tar ball I’ve created for the project which you should uncompress it into a directory. Click here to download the file. You should see the following files:

 FlexHelloWorld/
 |-- bin
 |-- build.xml
 |-- css
 |   `-- hello_world.css
 |-- env.sh
 |-- hello_world.mxml
 `-- includes
     `-- hello_world.as

The first thing you’ll need is to do is setup you env.sh file. This will setup your environment to work. Edit the file and replace the JAVA_HOME and ANT_HOME variables to point to where you have installed them. I usually install Java and Ant in /opt and make links like so:

[miquel@baggins Flex]$ ls -l /opt/
total 148
lrwxrwxrwx  1 root   root       9 2007-08-16 02:27 ant -> ant-1.5.4
lrwxrwxrwx  1 root   root      42 2007-08-16 02:27 ant-1.5.4
lrwxrwxrwx  1 root   root      11 2007-06-03 13:39 java -> jdk1.6.0_01
drwxr-xr-x 10 miquel miquel  4096 2007-03-14 07:57 jdk1.6.0_01

Once you have edited env.sh you should run it like so:

[miquel@baggins Flex]$ . env.sh

This will add your javac compiler and ant commands to your path. The next step is to edit your ant build.xml file. Here you need to change the bold text on the tag which says:

  <!-- location of MXML compiler -->
  <property name="flex.mxmlc" location="/home/miquel/Develop/Flex/flex/bin/mxmlc" />

to point to your mxmlc compiler where you have installed the Flex SDK. In my case I installed it in /home/miquel/Develop/Flex/flex

To build the SWF file you need to compile your .as and .mxml files: this is where ant comes in. To compile your project just type ant at the command prompt:

[miquel@baggins FlexHelloWorld]$ ant
Buildfile: build.xml

init:
   [delete] Deleting directory /home/miquel/Develop/Flex/FlexHelloWorld/bin
    [mkdir] Created dir: /home/miquel/Develop/Flex/FlexHelloWorld/bin

compile:
     [exec] Loading configuration file /home/miquel/Develop/Flex/flex/frameworks/flex-config.xml
     [exec] Warning: Source path entry, '/home/miquel/Develop/Flex/FlexHelloWorld/includes', is a ...

     [exec] bin/hello_world.swf (140072 bytes)

BUILD SUCCESSFUL
Total time: 36 seconds

That’s it! You have compiled your first Flex project. To view the flex app open your browser and simply point to your SWF file which is stored in the bin/ directory. You can make modifications to the two files where the source code lives: hello_world.mxml which has the GUI and includes/hello_world.as which has the Actionscript code where you should write the event handlers.

This sample project is the starting point for more complicated projects. If you build any serious Flex application you will definitively have a more complicated directory structure but this is a nice starting point for your flex development. To read more about flex visit flex.org, Adobe Devnet and the official flex site.

Lets assume Role X needs to be able to create nodes belonging to two content types: content type 1 and content type 2. We will build a view that shows this two contente types. For this goto admin/build/views and create a new view. In the Basic Information section type a name, a description and allow Role X to have access.

In the Page section check Provide Page View, assign a URL to access your view, choose Table View in the View Type. Its a good idea to check Use Pager since you might have many nodes once your site starts growing.

Next, add some HTML to the Header Section so that on the top of the view you have a couple of links to add content of the type Role X can create. This can be hardwired HTML or you can create it dynamically. In this example I’ve done it with static HTML.

If the view is empty the Header will not be shown so it’s a good idea to copy the text to the Empty Text textarea. Also remember to click on Full HTML if its static HTML or PHP Code if its dynamic.

Now its time to select the fields your view will show. In my case I chose Node: ID, Node: Title, Node: type, Node: Edit link and Node: Delete link. You can also add the last update date and author also. The trick is to have the Edit link and Delete link so that the user can quickly view, edit and delete content.

Next is the important step: add a filter to only display those nodes which belong to the content type the user is allowed to edit / create. It is also convinient to add a filter on the Node: Published flag and expose it so that the user can quickly filter those nodes which are published or unpublished.

Finally you should select a Sort Criteria. A good choice is to use the Node: Updated Time so that recently updated nodes are displayed on top.

Now that you have defined the view you can save it and have a look at it. Here is how mine looks like:

As you can see with this method you can quickly create pages for different roles so that they can edit restricted content types. This method is easy and the results are quite good. What is missing from this page is the ability to apply settings to groups of nodes and a couple of more filters. One thing you might be tempted to do is to expose the *Node: type* filter so that the user can filter content acording to node type. Unfortunately when Drupal builds the filter it will not filter out those content types which you excluded in the filter definition! This is really annoying but I really didn’t look through the views issues to see if this has been reported. I imagine it has.

If you got a fresh install you can look into <ORACLE_HOME>/install/readme.txt and find the version.

But i prefer to take a look into <ORACLE_HOME>/config/ias.properties
For example:

$ grep Version $ORALCE_HOME/config/ias.properties
Version=10.1.2.0.2

...

...

at java.lang.Thread.run(Thread.java:568)


This error occurs because the EMCTL IAS console hangs after logging in. Check the emdctl.trc file to verify the issue.

The next steps describe how to rectify this issue.

1. Add the following text in emctl script available in $ORACLE_HOME/bin/ directory.

if [ "$uname" = "AIX" ] ; then

   EM_OC4J_OPTS="-Djava.awt.headless=true $EM_OC4J_OPTS"

   export EM_OC4J_OPTS

fi

2. Modify the file $ORACLE_HOME/sysman/config/emd.properties:

Seacrh this line

agentJavaDefines=-Doracle.dms.refresh.wait.time=1000 -DUrlTiming.UseJSSE=true

and change it to:

agentJavaDefines=-Doracle.dms.refresh.wait.time=1000 -DUrlTiming.UseJSSE=true-Djava.compiler=NONE -DHTTPClient.disableKeepAlives=true

3. Restart the iasconsole and try again.

Note: This issue is documented in Oracle® Application Server Release Notes
10g Release 2 (10.1.2) for AIX 5L Based Systems (64-Bit) B25203-08