Showing posts with label Development. Show all posts
Showing posts with label Development. Show all posts

Wednesday, May 14, 2008

Automating Processes by observing the Pattern

It's been said time and again that The REAL Programmer automates his job that they are Long Term Life Planners and have Attention to Detail

Here is just an example of ways in which one can automate processes.

I use Seagull Framework for developing faster, secure and feature rich Web based Applications Today, I had to update the Database to fill some blank columns in a table named sgl_permision

I first tried to edit them through the Seagull's Web based Admin Front end It was taking too long.
Then I tried to edit the same using phpMyAdmin setting the result to go to edit the next page instead of going back to the listing Page still it was very time consuming..

Then I decided to write SQL Queries by Observing the Pattern and using that to my rescue.

Here is the SQL Queries that I wrote to solve the Problem and am documenting so that it can be used in future.

/* To use a Manager */
UPDATE `sgl_permission`
SET `description` = CONCAT('Permission to use ', TRIM(TRAILING 'mgr' FROM `name`), ' Manager')
WHERE (`description` = '' OR `description` IS NULL)
AND `name` LIKE '%mgr'

/* To add a new entity */
UPDATE `sgl_permission`
SET `description` = CONCAT('Permission to add a new ', TRIM(LEADING 'admin' FROM TRIM(TRAILING 'mgr_cmd_add' FROM `name`)), ' through ', TRIM(TRAILING 'mgr_cmd_add' FROM `name`), ' Manager')
WHERE (`description` = '' OR `description` IS NULL)
AND `name` LIKE '%mgr\_cmd\_add'

/* To view the listing of entities */
UPDATE `sgl_permission`
SET `description` = CONCAT('Permission to view the listing of ', TRIM(LEADING 'admin' FROM TRIM(TRAILING 'mgr_cmd_list' FROM `name`)), '(s) through ', TRIM(TRAILING 'mgr_cmd_list' FROM `name`), ' Manager')
WHERE (`description` = '' OR `description` IS NULL)
AND `name` LIKE '%mgr\_cmd\_list'

/* To insert a new entity */
UPDATE `sgl_permission`
SET `description` = CONCAT('Permission to insert new ', TRIM(LEADING 'admin' FROM TRIM(TRAILING 'mgr_cmd_insert' FROM `name`)), ' through ', TRIM(TRAILING 'mgr_cmd_insert' FROM `name`), ' Manager in the Database')
WHERE (`description` = '' OR `description` IS NULL)
AND `name` LIKE '%mgr\_cmd\_insert'

/* To edit an existing entity */
UPDATE `sgl_permission`
SET `description` = CONCAT('Permission to edit an existing ', TRIM(LEADING 'admin' FROM TRIM(TRAILING 'mgr_cmd_edit' FROM `name`)), ' through ', TRIM(TRAILING 'mgr_cmd_edit' FROM `name`), ' Manager')
WHERE (`description` = '' OR `description` IS NULL)
AND `name` LIKE '%mgr\_cmd\_edit'

/* To update an existing entity in the database */
UPDATE `sgl_permission`
SET `description` = CONCAT('Permission to update an existing ', TRIM(LEADING 'admin' FROM TRIM(TRAILING 'mgr_cmd_update' FROM `name`)), ' through ', TRIM(TRAILING 'mgr_cmd_update' FROM `name`), ' Manager in the Database')
WHERE (`description` = '' OR `description` IS NULL)
AND `name` LIKE '%mgr\_cmd\_update'

/* To delete an entity */
UPDATE `sgl_permission`
SET `description` = CONCAT('Permission to delete ', TRIM(LEADING 'admin' FROM TRIM(TRAILING 'mgr_cmd_delete' FROM `name`)), '(s) through ', TRIM(TRAILING 'mgr_cmd_delete' FROM `name`), ' Manager from the Database')
WHERE (`description` = '' OR `description` IS NULL)
AND `name` LIKE '%mgr\_cmd\_delete'

/* To archive an entity */
UPDATE `sgl_permission`
SET `description` = CONCAT('Permission to archive ', TRIM(LEADING 'admin' FROM TRIM(TRAILING 'mgr_cmd_archive' FROM `name`)), '(s) through ', TRIM(TRAILING 'mgr_cmd_archive' FROM `name`), ' Manager in the Database')
WHERE (`description` = '' OR `description` IS NULL)
AND `name` LIKE '%mgr\_cmd\_archive'

/* To View an entity in detail */
UPDATE `sgl_permission`
SET `description` = CONCAT('Permission to view ', TRIM(LEADING 'admin' FROM TRIM(TRAILING 'mgr_cmd_view' FROM `name`)), ' through ', TRIM(TRAILING 'mgr_cmd_view' FROM `name`), ' Manager')
WHERE (`description` = '' OR `description` IS NULL)
AND `name` LIKE '%mgr\_cmd\_view'

/* To create a duplicate of an entity */
UPDATE `sgl_permission`
SET `description` = CONCAT('Permission to create a duplicate of ', TRIM(LEADING 'admin' FROM TRIM(TRAILING 'mgr_cmd_duplicate' FROM `name`)), ' through ', TRIM(TRAILING 'mgr_cmd_duplicate' FROM `name`), ' Manager')
WHERE (`description` = '' OR `description` IS NULL)
AND `name` LIKE '%mgr\_cmd\_duplicate'

/* To reorder entities */
UPDATE `sgl_permission`
SET `description` = CONCAT('Permission to reorder ', TRIM(LEADING 'admin' FROM TRIM(TRAILING 'mgr_cmd_reorder' FROM `name`)), '(s) through ', TRIM(TRAILING 'mgr_cmd_reorder' FROM `name`), ' Manager')
WHERE (`description` = '' OR `description` IS NULL)
AND `name` LIKE '%mgr\_cmd\_reorder'

/* To view an overview of an entities */
UPDATE `sgl_permission`
SET `description` = CONCAT('Permission to view an overview of ', TRIM(LEADING 'admin' FROM TRIM(TRAILING 'mgr_cmd_overview' FROM `name`)), '(s) through ', TRIM(TRAILING 'mgr_cmd_overview' FROM `name`), ' Manager')
WHERE (`description` = '' OR `description` IS NULL)
AND `name` LIKE '%mgr\_cmd\_overview'

/* To view a summary of an entity */
UPDATE `sgl_permission`
SET `description` = CONCAT('Permission to view an summary of ', TRIM(LEADING 'admin' FROM TRIM(TRAILING 'mgr_cmd_summary' FROM `name`)), '(s) through ', TRIM(TRAILING 'mgr_cmd_summary' FROM `name`), ' Manager')
WHERE (`description` = '' OR `description` IS NULL)
AND `name` LIKE '%mgr\_cmd\_summary'

/* To edit all entities */
UPDATE `sgl_permission`
SET `description` = CONCAT('Permission to edit all ', TRIM(LEADING 'admin' FROM TRIM(TRAILING 'mgr_cmd_editAll' FROM `name`)), '(s) through ', TRIM(TRAILING 'mgr_cmd_editAll' FROM `name`), ' Manager')
WHERE (`description` = '' OR `description` IS NULL)
AND `name` LIKE '%mgr\_cmd\_editAll'

/* To Update all entities */
UPDATE `sgl_permission`
SET `description` = CONCAT('Permission to update all ', TRIM(LEADING 'admin' FROM TRIM(TRAILING 'mgr_cmd_updateAll' FROM `name`)), '(s) through ', TRIM(TRAILING 'mgr_cmd_updateAll' FROM `name`), ' Manager')
WHERE (`description` = '' OR `description` IS NULL)
AND `name` LIKE '%mgr\_cmd\_updateAll'

/* Scan all Orphaned entities */
UPDATE `sgl_permission`
SET `description` = CONCAT('Permission to scan all Orphaned ', TRIM(LEADING 'admin' FROM TRIM(TRAILING 'mgr_cmd_scanOrphaned' FROM `name`)), '(s) through ', TRIM(TRAILING 'mgr_cmd_scanOrphaned' FROM `name`), ' Manager')
WHERE (`description` = '' OR `description` IS NULL)
AND `name` LIKE '%mgr\_cmd\_scanOrphaned'

/* Delete all Orphaned entities */
UPDATE `sgl_permission`
SET `description` = CONCAT('Permission to delete all Orphaned ', TRIM(LEADING 'admin' FROM TRIM(TRAILING 'mgr_cmd_deleteOrphaned' FROM `name`)), '(s) through ', TRIM(TRAILING 'mgr_cmd_deleteOrphaned' FROM `name`), ' Manager')
WHERE (`description` = '' OR `description` IS NULL)
AND `name` LIKE '%mgr\_cmd\_deleteOrphaned'

/* Scan to detect new Entities */
UPDATE `sgl_permission`
SET `description` = CONCAT('Permission to scan and detect for new ', TRIM(LEADING 'admin' FROM TRIM(TRAILING 'mgr_cmd_scanNew' FROM `name`)), '(s) through ', TRIM(TRAILING 'mgr_cmd_scanNew' FROM `name`), ' Manager')
WHERE (`description` = '' OR `description` IS NULL)
AND `name` LIKE '%mgr\_cmd\_scanNew'

/* To insert newly detected Entities */
UPDATE `sgl_permission`
SET `description` = CONCAT('Permission to insert new ', TRIM(LEADING 'admin' FROM TRIM(TRAILING 'mgr_cmd_insertNew' FROM `name`)), '(s) through ', TRIM(TRAILING 'mgr_cmd_insertNew' FROM `name`), ' Manager')
WHERE (`description` = '' OR `description` IS NULL)
AND `name` LIKE '%mgr\_cmd\_insertNew'

Sunday, January 6, 2008

DZone Links Aggregator for Web Development on LAMP and AJAX

Hey, I am not interested in your story, Subscribe me to the feed straightaway.

1) Irrelevant result for all links
I was subscribed to the DZone recent links to the feeds at http://dzone.com/links/feed/frontpage/rss.xml and my Google reader was getting flooded with new items every few minutes and I was noticing that I was getting items which aren't relevant to me.

2) Subscribe to the Tags by visiting individual pages for each tags and subscribe to them:
Hence I tried to find a way to subscribe to each tag that I am interested in php, javascript and subscribed to them. But the Problem here is that if two links are submitted for both of the tags in my list I get repetitive entries...

3) Yahoo Pipes to the rescue.
I created a new Pipe in Yahoo Pipes with the following components in it.

A) A Feed fetcher which fetches the following feeds:
http://dzone.com/links/feed/frontpage/php/rss.xml
http://dzone.com/links/feed/frontpage/javascript/rss.xml
http://dzone.com/links/feed/frontpage/javascript/rss.xml
http://dzone.com/links/feed/frontpage/ajax/rss.xml
http://dzone.com/links/feed/frontpage/web%202.0/rss.xml
http://dzone.com/links/feed/frontpage/web%20design/rss.xml
http://dzone.com/links/feed/frontpage/css-html/rss.xml

B) The output is fed into an Operator Unique which filters non unique items based on item.link

C) The output of B is fed into an Operator Sort which sorts the item by item.pubDate on Descending Order.

The out put of the C is what you get in the feed at

There are other similar attempts and a list of that can be found at http://pipes.yahoo.com/pipes/search?q=dzone

Please write in the Comments if you feel any other tags from DZone should be included here. Or any other thought to make it more useful.

Monday, November 5, 2007

Getting Eclipse to Work on Ubuntu

Getting Eclipse to wiork on Ubuntu for all my Development Work proved to be very tricky.
There are issues related to permission compatibility and what not.

Here is what worked for me.
After installing and uninstalling Eclipse and deleting the Workspace for quite a few times, I first removed all the Packages with the search term eclipse from the Synaptic Package Manager (Top Bar -> System Menu -> Administration -> Synaptic Package Manager)

Then I used the steps as explained in the iteratively documented tutorial at Ubuntuforum in the following url

http://ubuntuforums.org/showthread.php?t=201378

After doing this, the first time I run the Editor from the terminal with the following command
rungss@rungss-ubuntu: eclipse -clean

then I included the following Update sites
name="Subclipse Subversion Plugin" url="http://subclipse.tigris.org/update_1.2.x"
name="The Eclipse 3.3 Project Updates" url="http://update.eclipse.org/updates/3.3"
name="Europa Discovery Site" url="http://download.eclipse.org/releases/europa"
name="PDT Updates" url="http://download.eclipse.org/tools/pdt/updates/"
name="Web Tools Platform (WTP) Updates" url="http://download.eclipse.org/webtools/updates"

By default there were two sites

name="The Eclipse Project Updates" url="http://update.eclipse.org/updates/3.2"
name="Callisto Discovery Site" url="http://download.eclipse.org/callisto/releases"

Here is the link of Update Site Bookmarks which you can import through the Eclipse Update manager.
http://bijay.rungta.googlepages.com/ubuntu-lamp-eclipse-update-sites-boo.xml

Note: be careful with the ending /(slash) for the site urls enter them as is in the above list. Its strange that for some sites the end "/" is valid while not for others.

Then I searched for Updates..

Upon the listing of all available features I selected a few based on my preferences. The following is the list of them
  • Subclipse Plugin from Subclipse Update site
  • PDT features and PDT SDK features from the PDT Update Site
  • Eclipse 3.3 from the Eclipse 3.3 Project Update Site.(I like the view in 3.3 where you can minimize all panels and view any one of them as you wish irrespective of the Perspective you are viewing the Editor)
  • WTP from Europa Site and some other CVS related features.
While selecting these features I clicked on the Select Required button when I saw any error for incompatibility in selected features.

Next I signed the Agreements and when Saving them I selected the folder "/usr/local/lib/eclipse" to install features where it was in any other Directory than the base installation location (Basically wherever it permitted to do so.)
This is done so that other users can also use them. Advise taken from the article at https://help.ubuntu.com/community/EclipseWebTools

That is all This seems to work for me.
Here are the various webpages that I reviewed many a times during the whole process

http://ubuntuforums.org/showthread.php?t=201378
https://help.ubuntu.com/community/EclipseWebTools
https://help.ubuntu.com/community/EclipseIDE

https://bugs.launchpad.net/ubuntu/+source/eclipse/+bug/68053
https://bugs.launchpad.net/ubuntu/+source/eclipse/+bug/68053
http://flurdy.com/docs/eclipse/install.html
http://ubuntuforums.org/showthread.php?p=3177266
http://www.eclipseplugincentral.com/PNphpBB2-printview-t-2556-start-0.html
http://www.eclipse.org/eclipse/development/readme_eclipse_3.3.1.1.html
http://ubuntuforums.org/archive/index.php/t-436316.html

PS: The strategy to install plugins in the directory /usr/local/lib/eclipse again had some problems. Was getting an error message saying conflict entries..
I guess what happened is some of the files(a part of some plugin was exisitng in both the directory usr/lib/eclipse and usr/local/lib/eclipse) or may be because i installed Eclipse 3.3 on Eclipse 3.2 I have started the Eclipse 3.3 updation right now and wil realize if thats what the problem was in some time. Will update the post.

So I had to uninstall the Eclipse again and then I reinstalled. But to my Surprise I got the same error again(Conflict..)
I later realized that this was because when I installed it after uninstalling it... It was basically installed from the cache on the Local Computer..

So I run the following command to first clear the cache

apt-get clean

Thanks to teh article at https://help.ubuntu.com/community/AptGetHowto

And then I reinstalled eclipse with the following the steps at the Page
http://ubuntuforums.org/showthread.php?t=201378

Lets see how it goes now...

Saturday, October 27, 2007

Running Apache as a service on Windows

To install Apache as a service on Windows browse to the Apache Flder through the command line and enter the following command

apache -i -n "Service Name"

Service Name is the name of the service that you want to give it.

To name it Apache enter the following command

apache -i -n "Apache"

Quotes are required if the Service name that you want has blank space(s)

if it succeeds test it with the follwing command to start the service. from next time the Service will start when the windows starts.

apache -n "Apache" -k start


Have fun, no extra window opened all the time to annoy you and no pain of having to start the Apache web server each time you boot your system

For further documentation visit http://httpd.apache.org/docs/1.3/win_service.html