Archive for the ‘Know-how’ Category
Monday, February 2nd, 2009
Important
If you have not already done so, study Writing a Big Application in Ext (Part 1) before you read this article. It would be very hard, if not impossible, to understand concepts explained here before you fully understand the first part.
Introduction
It has been almost one year since I have published ...
Posted in Know-how | 23 Comments »
Sunday, May 18th, 2008
We need to know all events that are fired by a component and in which order sometimes. It is easy to find out.
Let's say that the component in question has id my-comp. Load the page with the component, open Firebug, Console tab, and type:
Ext.util.Observable.capture(Ext.getCmp('my-comp'), console.info)
Now do some actions with the ...
Posted in Know-how | 5 Comments »
Sunday, May 18th, 2008
Historical Background
Most likely many of you who will read this article do not remember times of Fortran language and computers that were fed with tons of punch cards to have some some job done.
The main purpose of computers at that time was to compute something really; that is not true ...
Posted in Know-how | 36 Comments »
Sunday, May 11th, 2008
The Problem
Imagine that you have a one-to-many relationship in your database, for example, you have table person in which you keep personal data (first, middle, last names, etc.) and you have table phone where you keep phone numbers (phone type, phone number).
It is quite common to have person:phones, company:phones, order:items, ...
Posted in Know-how | 8 Comments »
Friday, May 9th, 2008
Preface
There has been a lot of confusion I have observed on the Ext Forums as to xtype. Some people ignore it fully, some think that it is what it is not. So I've decided to clarify it.
Definition
xtype is a symbolic name given to a class. Nothing less, nothing more.
For ...
Posted in Know-how | 16 Comments »
Monday, April 28th, 2008
Preface
I believe that many of Ext users have already thought about adding some custom functionality that is not present in core Ext Library to a class. Something that is specific to their applications or not that specific so that others could also be interested in such feature.
OK, we have the ...
Posted in Know-how | 2 Comments »
Tuesday, April 22nd, 2008
If you want to see permissions of a file or a directory in both human readable and octal notation issue this command:
stat -c "%n %a %A" /tmp # replace /tmp with your file/dir
The output is as follows:
/tmp 1777 drwxrwxrwt
Posted in Cluster, Linux | 3 Comments »
Thursday, April 17th, 2008
On the way of development of my project I came to need to have set methods for javascript Array object especially intersection. Googling has shown up some but they were not LGPL, the licence what I need, so I've written them.
The following override contains:
Ext message box input type configuration
Conditional Ext.overrideIf
New ...
Posted in Know-how | 2 Comments »
Tuesday, April 15th, 2008
Preface
This article it the follow up of the Writing a Big Application in Ext post and it assumes that your application is written, at least to some degree, that way. It also assumes that the server side language is PHP 5.x, other users can take the idea and write the ...
Posted in Know-how | No Comments »
Saturday, April 12th, 2008
Preface
I have decided to write this article for those users of Ext 2.x that have already grown up from having one HTML page with embedded script that creates one simple window or form, for those who are already decided that Ext is the way and for those who are fighting ...
Posted in Know-how | 58 Comments »
