Generalization connects a sub-class to a super-class. It’s another name for inheritance. Realization connects a class to an interface. It’s another name for implementation.
Generalization is equivalent to public inheritance in C++ or ‘extends’ in java. It implies inheritance of interface and implementation.
KoalaPLoP and SugarLoafPLoP Hillside.net - Design Patterns Book - DP Book
Bus,Service Oriented Architecture
Training, Analyse (OOA), Design (OOD), Java/J2EE/EJB, UML, Geschäftsprozessmodellierung (GPM/GPA), Anforderungsanalyse (RE), Software architektur, Projektmanagement (PM), Vorgehensmodelle (OEP,
RUP) und OO-Grundlagen. {Description} oose.de: Training, Schulung, Beratung, Coaching, Consulting, Seminar, oose, Objektorientierte Softwareentwicklung, Entwicklungsmethodik, Analyse, Design,
Softwarearchitektur, SOA, OO-Grundlagen, Projektmanagement, Vorgehensmodell, Softskills, Soft-Skills, Organisationsentwicklung
Go http://www.33367.com/
here tons of programming books. easy to download...................
Ajax.NET - Download Details
Download the latest Ajax.dll (5.7.22.2) to use it for free in your web projects.
You can also download the Ajax.dll (5.7.25.1) Beta for the new Microsoft .NET Framework 2.0.
The source code of Ajax.NET is now available! More details...
What ist the UpdatePanel in ASP.NET Ajax? The answer is easy: When adding an UpdatePanel-control to your page, you can achieve a partial-update of your page on a postback. Only the content in the UpdatePanel is refreshed, the other parts of the page remain unchanged. This topic explains, how you can setup an Ajax-enabled project and use the UpdatePanel control.
More: http://www.codegod.de/WebAppCodeGod/updatepanel-tutorial-aspnet-ajax-AID281.aspx
This article describes how to implement a web-chat with ASP.NET and Ajax. In the first part I introduce the technologies I used for the application. Then I explain the concept of a chat and in the last part I present the main implementations.The goal of this article is to show the interested reader how to develop a chat without browser-plugins or java-applets, just pure HTML and javascript.
The CakePHP Development Site
Submitting Tickets
Before submitting a ticket read this: Bug Reporting. Make sure you have searched the CakePHP Google Group, and through the tickets that have already been submitted. Another suggestion is to grab the latest nightly or use the branch where many problems are fixed on a daily basis. You must be registered to submit tickets: Register here.
Latest Version
1.1
CakePHP 1.1.18.5850
1.1 Nightly Build
svn co
https://svn.cakephp.org/repo/trunk/cake/1.1.x.x /path/to/save
1.2
Whats in 1.2?
CakePHP 1.2.0.5875 pre-beta
1.2 Nightly Build
svn co
PHP offers the possibility to send email in a simple easy way, to that end the language provides us with the statement mail()
More details: http://www.webestilo.com/en/php/php10a.phtml
In the previous page we have indicated that data in a form is sent through the method indicated in the attribute METHOD of the tag FORM, the two possible methods are GET and POST.
The difference between these two methods is in the way of sending data to the page, while the GET method sends data using URL, the POST method sends them through the standard entrance STDIO
more details: http://www.webestilo.com/en/php/php09b.phtml
CakePHP.org
The official website
The Manual
The Cake manual
The API
The entire Cake API document
The Google Group
Actively discussing Cake development
Blogs about Cake
RD11
gwoo's blog about Cake, written in Cake
Cake baker
Daniel Hofstetter's blog about using Cake
H3rald
Fabio Cevasco's site written in Cake
Where are you?
Ajax professional programmer?
I know where your are! ;-)
I think this a best and small ajax professional programmer choice: jquery.com
Small. Compact. Useful. Ajax.
But if you ajax professional programmer, may be you wanna to use prototype.org
More Object Oriented Library for real ajax professional programmer in ajax style.But as for me, not ajax (not so) professional programmer -
it's hard to understanding, and really better to use small and for dummies (like me) jQuery lib.Ok, resume: The Better Choice for Ajax Professional Programmer - jQuery. Yah Yah! ;-)))
(You can find fresh version of this component at Code Snippet)
Just one moment! Do not use
$html->file ('UserFile');
Because construction
$_FILES['data[User][File]'] doesn't work (PHP 4.1.* at least).
So use standart html code:
Then
$this->filehandler->upload('userfile','dir');
Remember, You must creating directory at your webroot ;-)
With 777 access ;-) ..........................
Go:http://cake-php.blogspot.com/2006/09/easy-way-to-upload-files-up-to-your.html
Easy way to integrate Xihna into CakePHP.
Easy way to integrate TinyMCE into CakePHP.
And, of couse, it's SO EASY to integrate FCKEditor into CakePHP ;-)
But if you asked me about WYSIWYG Editor, I say to you: "I don't like WYSIWYG! And use MarkDown PHP.
So, about MarkDown "non-visual editor" next time. Ok? ;)
Just add this code in head your views:pageTitle="Page title goes here"?>
But remember, in cakephp 1.2.xx you can achieve this by
$this->set(‘title’, ‘Foo bar’);
Of couse, you must setup this variable (pageTitle) in your controller ;-)
If you want get code like this:
You can use useful ;) helper - Navigation Helper!
Code like this:
link('My account',"/users/account/",array('activeAction'=>'account'))?>
link('Browse',"/items/browse/",array('activeAction'=>'browse'))?>
link('Create Item',"/items/add/",array('activeAction'=>'add','activeController'=>'items'))?>
link('Create Item',"/users/add/",array('activeAction'=>'add','activeController'=>'users'))?>
So... When user travel into your site and change /items/add -> users/add - the different menu be displayed (class = "active" I mean).
Just add code like thisrender(null,array('id'=>'main_nav'))?>
In your views! ;-)
Easy Way? Yes! Easy!
You can find more detail information here. And download navigation helper (sorry it's not direct link, because this file present in other blog).
class MyController extends AppController{
// var $uses = null; works too
var $uses = array();
function index() {
}
}
If you omit the “var $uses = array();” you will get a “missing model” error.
Thank's to CakeBaker!
The answer is simple:
class ModelWithoutTable extends AppModel {
var $useTable = false;
}
You know, CakePHP check data only when you saving:
$this -> User -> save ($this->data)
But if you do not needing to save data?
In this case, you can use this "hint":
if ( $this -> User -> validates ( $this -> data ) ) { // OK, good to go
}
else { $this->set( 'data', $this->params['data'] ); $this->validateErrors( $this->User ); $this->render();
}
This code snippet made by Devo.
Easily creating static pages
I needed to create several pages that didn't use any models and contained static data inside the default layout. My first thought was to create a controller for these pages and define an action for each static page I needed. However, this solution seemed tedious and would make it difficult to quickly add new pages. Enter the pages controller - simply create a view inside the views/pages/ folder and it'll automatically be rendered in /pages. For example, if I created /views/pages/matt.thtml it would be accessible via http://www.example.com/pages/matt
Static pages - Adjusting the page title
If you're using the pages controller and you need to change the page title, add the following to your view:
pageTitle = 'Title of your page.'; ?>
Static pages - Adjusting other data sent to the layout
If you need to send data to the layout (such as a variable indicating what section to highlight on the nav bar), add this to your view:
_viewVars['somedata'] = array('some','data'); ?>
That array should then be accessible as $somedata inside your layout.
Creating a simple admin center
If you need to create an administrative back-end for your CakePHP site and would like all the actions with administrative capabilities to exist under a specific folder, open up config/core.php and uncomment: define('CAKE_ADMIN', 'admin');This will then make all actions that are prefixed with "admin_" to be accessible via: /admin/yourcontroller/youraction. For instance, if I created an action in my posts controller called "admin_add," I would access this via: www.example.com/admin/posts/addFrom there I could simply password the admin folder to prohibit unwanted users from adding posts.
Viewing the SQL queries that are running behind the scenes
You can easily see the SQL queries that CakePHP is running by adjusting the DEBUG constant in config/core.php. 0 is production, 1 is development, 2 is full debug with SQL, and 3 is full debug with SQL and dump of the current object. I typically have debug set at 2, which renders a table at the bottom of the page that contains SQL debug information. If rendering a table at the bottom of your site is constantly breaking your layout during development (especially if you're making AJAX calls and you're getting SQL inside your pages, not just the bottom), you can easily style this table to be hidden by adding this to your CSS:
#cakeSqlLog { display: none; }
This will allow you to view debug information in the HTML source code without your layout getting mangled, just don't forget to set debug back to 0 when your site goes live.
Multiple sources of documentation
Don't just rely on the manual. The wiki and the API are invaluable sources of information. The tutorials in the wiki are especially useful, and the API may be daunting at first, but you'll quickly find the information in there is crucial to building a site with CakePHP.
Using bake.php
Bake is a command line PHP script that will automagically generate a model, controller, and views based on the design of your database. I highly recommend using scaffolding to get a prototype going of a table that may change a lot in the beginning. If you're fairly certain the data is not subject to any drastic change, I recommend using bake instead. With bake all the files are generated and written to disk and you can make modifications from there. It saves a lot of time doing the repetitive tasks such as creating associations, views, and the basic CRUD controller operations. Using bake is really easy. Once you have a table(s) in your database created, change directories to the /cake/scripts/ folder and run:
php bake.php
If you choose to bake interactively it'll walk you through the steps required to create your model, controller, and views. Once everything has been baked I usually go through all the generated code and make custom modifications as needed.
Mind permissions when moving cake around
When I changed from the development server to the live server I tarred up my entire cake directory and scp'd it to the new server. Immediately I started having an issue where any time the debug level was set to 0 (production mode), data would not be returned for certain database calls. This was a bit of a catch 22 since I needed to view debug information to troubleshoot the problem. Someone in #cakephp kindly pointed out that permissions on the /app/tmp folder need to be writeable by apache. I changed the permissions to 777 and the issue went away.
Complex model validation
I needed to validate beyond just checking to make sure a field wasn't empty or it matched a regular expression. In particular, I needed a way to verify that the email address users registered with was unique. In the wiki I found this gem: this advanced validation tutorial, which covers some advanced methods of validation that were very useful.
Logging errors
$this->log('Something broke');
This will log your error to /tmp/logs/ (I initially made the mistake of thinking it would log it to the apache error log)
Creating a controller that uses other models
Suppose you have a controller that needs data from a bunch of different models, simply add this to the top of your controller:
class yourController extends AppController {
var $uses = array('Post','User');
}
This controller would then have access to both the Post and the User model.
Creating a model for a table that doesn't actually exist in the database
I needed a way to create a model and controller without actually having an associated table in the database. I particularly wanted to make use of the $validate array so I could easily validate my fields and keep the validation logic in the model. CakePHP will throw an error if you create a model for a table that doesn't exist. Adding this to the model fixed the problem:
var $useTable = false;
You can use this to change tables names as well.
var $useTable = 'some_table';
Call exit() after redirecting
This should be no surprise to anyone who has done any serious web development in the past, but make sure you call exit() after running $this->redirect() if there's code afterward that you don't want to run. I've always done this in the past, but I made the assumption that $this->redirect() would make an exit call for me (which it didn't).
Advanced model functions
Unless you delve in to the API, there are some very useful model functions at your disposal you might not know exist. I highly recommend reading over the Model Class Reference at least once. Here's a few key functions I wasn't aware of that I found to be very useful:
generateList() - I use this function primarily to populate select boxes with data from associated tables
findBySql() - Sometimes you just need to write your own SQL
findCount() - Returns number of rows matching given SQL condition
hasAny() - Returns true if a record that meets the given conditions exists.
Again, I highly recommend reading over the entire model class reference, you'll be surprised at what you learn.
Inserting multiple rows in succession
I had a situation where I needed to iterate through a list of items and insert new rows for each. I quickly discovered that if you insert an item and then immediately insert another, the item that is inserted next doesn't insert at all. Instead the previously inserted row was being updated. For example:
$items = array('Item 1','Item 2','Item 3');
foreach ($items as $item) {
$this->Post->save(array('Post' => array('title' => $item)));
}
This code will result in a single entry in the posts table: "item 3." CakePHP inserted "item 1", but then updates it to become "item 2," then "item 3" because $this->Post->id gets the value of the last inserted ID. Normally this functionality is very useful, but in this particular instance it was not. I found was to setting $this->Post->id = false after each insert solved the problem.
Inserting logic before or after controller functions
Suppose you needed an array of colors to be available to every view rendered by your controller but you don't want to have to define this data in every action. Using the beforeRender() callback will allow you to do this:
function beforeRender() {
$this->set('colors',array('red','blue','green');
}
This would make $colors accessible in every view rendered by that controller. beforeRender() is called after the controller logic and just before a view is rendered. There's also beforeFilter() and afterFilter(), which are called before and after every controller action. For more information, read up on callbacks in the models section of the manual.
Adding a WYSIWYG editor to CakePHP
I found this great tutorial on getting TinyMCE set up with CakePHP. Basically you just link the tiny_mce .js file to your page and then add a small bit of init code to every page that you want textareas to be converted into TinyMCE editors.
Writing your own SQL for HABTM relationships
I had an issue with trying to create a HABTM (has-and-belongs-to-many) relationship where I needed to specify my own SQL statement. According to the docs (at the time of this writing) you should set finderSql in your model, but according to the cakePHP source you should set finderQuery instead. It's just a foul-up in the docs, but I figured it'd be worth noting to save others from having to figure it out for themselves. Trac ticket here: https://trac.cakephp.org/ticket/1217
Sending email
I found two tutorials in the wiki: Sending email and Sending email with PHPMailerI highly recommend the latter of the two, sending emails with PHPMailer is more secure and there's less of a headache because you don't have to deal with constructing the mail headers yourself.
Customizing HTML generated by the Helper
I needed to change the default "You can get a full list of available tags in /cake/config/tags.ini.php.
I wouldn't recommend modifying that file, however, because you could lose your changes when you upgrade CakePHP.
Creating a custom 404 error page
If you need to change the page that users see when a document is not found, create:/app/views/errors/error404.thtml
Source: Original >>
The Unified Modeling Language combines best practices, platform independence, and extensibility into a common language for modeling complex software solutions.
UML combines modelling methodologies
Rational Software’s Grady Booch, Ivar Jacobson, and Jim Rumbaugh created UML to combine various object-oriented modelling methodologies. One of their collaborative goals was to create a system for modeling that would provide meaningful information to the human designers while creating “executable artifacts” useful to the machine that would be processing the information. They collected input from a large pool of system architects and modeling tool manufacturers. The Object Management Group (OMG) released the UML standard in 1997.
Today, many large companies use UML for software development, including Hewlett-Packard, IBM, and Sun. In addition, many vendors utilise another OMG standard, Model Driven Architecture (MDA), to create tools that help translate UML designs into platform-specific architectures. Rational has a suite of products that actually generate code in a variety of programming languages based on UML input.
UML gives project managers, architects, and developers a common language for describing an intended solution. UML’s combination of common, spoken-language descriptions and symbolic representations of logical elements strikes the perfect balance between flexibility, extensibility, and usability.
A versatile standard
UML works in conjunction with project management methodologies and vendor tools and applications to help you define a solution’s architecture. UML is platform-independent by design; you can deploy it alone or with other OMG standards to develop object-oriented solutions based on best-practice modeling techniques. However, you can also use UML to design organisational architectures and other, non-software-related systems.
The UML specification that defines the OMG standard is available for free download. It describes the 12 diagram types, the elements used to create them, and semantics and notations used when modeling.
While you’re free to use any project management methodology in conjunction with UML, you may wish to evaluate tools that are available for your specific platform before committing to a technique. Some tools, such as Rational Rose, assume a specific methodology, such as the Rational Unified Process (RUP), and you may not get the full benefit if you stray too far. Many of the available tools offer functionality similar to Visio or other diagramming applications, with a splash of IDE thrown in for architectural verification and inclusion of existing code bases.
There are dozens of UML tools available, ranging in cost from free to several thousand dollars. The Objects by Design Web site has a long list of UML products to choose from. It’s a good place to start looking.
UML diagrams
The current version of UML, 1.4, contains nine diagram types and three model management elements that serve as the core of the UML system.
Each diagram consists of elements, represented by blocks, and relationships, represented by connectors. UML uses a vocabulary of standardised symbols to demonstrate various aspects of elements and relationships. These diagrams are broken down into the following categories:
Structural diagrams
Behaviour diagrams
Model management elements
UML builds on best practices
UML is popular for several reasons. First, it was created from best practices in object-oriented design as identified by hundreds of participants. Second, the focus on platform independence readily orients models toward portable and scalable applications. Third, when combined with the tools available for handling UML, the system is extended beyond mere development and remains useful throughout a product’s life cycle.
This overview of UML’s basic structures was intended to give you an understanding of how UML helps you model software architecture. If you’d like to see more in-depth information on UML, send an e-mail to ZDNet Australia's Builder Channel
MySQL 5.1 partitions in practice (MySQL DevZone)
This article explains how to test the performance of a large database with MySQL 5.1, showing the advantages of using partitions. The test database uses data published by the US Bureau of Transportation Statistics. Currently, the data consists of ~ 113 million records (7.5 GB data + 5.2 GB index).
Using XML in MySQL 5.1 and 6.0 (MySQL DevZone)
In this article, we discuss the XML functionality available in MySQL, with an emphasis on new features coming online in MySQL 5.1 and MySQL 6.0. We assume that you already have a working knowledge of XML, and that you know what the terms “valid” and “well-formed” mean. We also assume that you have some knowledge of XPath.
Load and Search MySQL Data Using VB.NET 2005 in Windows Applications (MySQL DevZone)
MySQL data load and search are very important business requirements in any Windows or Internet web application development. In general, any application needs to show a result set of data and/or a single record to the end-users. In Windows applications it is very popular to show a result set of data by using the DataGridView, ListView or TreeView controls. A single record can be shown by the simple combination of the following controls: TextBox, ComboBox, ListBox, CheckBox, RadioButton, etc. MySQL data search is provided by using the required ADO.NET data objects and by refreshing the controls if necessary. These two processes, data load and search, should be fast and should be done with the proper code which depends on the controls in the Windows Form or Web Page. In this article I will show you how load and sort MySQL data using the DataGridView control. To search MySQL data the LIKE SQL operator will be used. Both programming implementations are done by using stored procedures for MySQL 5.0 database engine.
MySQL Failover Strategy using State Management, introducing MPP - Part 1
Having a strategy for failover has become almost standard in the business world. Whether it is a total site failover from a NOC in one city to another, or just a simple redundant server. Over the years many technology solutions have been created for or adopted to MySQL to provide this type of strategy.
MySQL Failover Strategy using State Management, introducing MPP - Part 2
Now it's time to apply that concept to a load-balancer. In this Part 2 we will look at a strategy for using Linux Virtual Server with MPP for failover, and also take a closer look at the mechanics of MPP itself.
MySQL Failover Strategy using State Management, introducing MPP - Part 3
In this part 3 we will discuss how to configure and operate MPP, and additionally use MPP with MySQL Proxy to create a failover strategy.
Getting started with MySQL Proxy (MySQL DevZone)
The launch of MySQL Proxy has caused quite a commotion in the community. And with reason. For feature hungry people, this is undeniably the most exciting addition to MySQL set of tools.If the last statement has left you baffled, because you don't see the added value, don't worry. This article aims at giving you the feeling of what the Proxy can do.
Improving Database Performance with Partitioning (MySQL DevZone)
A few years ago, I wrote an article entitled "The Foundation of Excellent Performance" (still available at http://www.tdan.com/i016fe03.htm) where I argued against the notion that SQL code was the number one contributor to performance in a database-driven system. Instead, I stated in the article that I firmly believed how good physical database design was far and away the leading component of superior database performance. In addition, I showed that Oracle's own research illustrated how poor design was the main culprit behind database downtime (planned or unplanned). In the years since then, I've not changed my stance and still think that any DBA who wants a high-performance database has got to invest in intelligent and savvy physical design to produce the kind of response times that make end users smile instead of scream.
Accessing Distributed Data with the Federated Storage Engine (MySQL DevZone)
It's no secret that corporations are swimming in more data than ever before. IDC has recently pegged data growth at 48% a year, which means that corporate data nearly doubles every two years at many companies. In addition, purchased applications and custom built systems continue to bring in new databases that require attention, and business intelligence remains a red-hot area for modern enterprises with many companies building analytic data warehouses or data marts that continually feed information to key decision makers
Managing Hierarchical Data in MySQL (MySQL DevZone)
Most users at one time or another have dealt with hierarchical data in a SQL database and no doubt learned that the management of hierarchical data is not what a relational database is intended for. The tables of a relational database are not hierarchical (like XML), but are simply a flat list. Hierarchical data has a parent-child relationship that is not naturally represented in a relational database table
Javascript DataGrid using the MVC pattern (CodeProject)
This grid supports resizing, draging, and sorting the columns. It was implemented using the MVC pattern.
Download demo project - 19.6 KB
Introduction
The MVC pattern is the way of breaking an application or GUI control into three parts: the controller, the model, and the view. The MVC pattern was designed to deal with input, data processing, and rendering the data into the GUI realm. The user input, data processing and rendering the data are separated and handled by the view, model, and controller objects.
Grid features
This grid supports dragging columns, resizing columns, and sorting columns. The double click on the column header will cause sorting the grid by the clicked header column. In order to resize columns, you need to move the header separator, holding the mouse button. It will cause junking the text labels in resizing column if they are too long to be in the cell. To drag a column you need to move the mouse on the header, holding the mouse button.The grid also has two kind of menus: the selected row menu and the grid menu. Right-clicking on row will cause an appearance of the selected row menu and right-clicking anywhere out of rows will cause an appearance of the grid menu.
The grid has two events "onRowUpdated" and "onRowAdded". These events fire on "Add","Update" button click and return the obj that contains new values for grid row.
Dynamic Table Filtering/Searching using DHTML and JavaScript (CodeProject)Easily add table filtering/searching capability to your webpage without requiring a round trip to the server.Download source - 3.2 KbWeb Development » Client side scripting
Javascript Online Beautifierhttp://elfz.laacz.lv/beautify/ Online beautifier for javascript (js beautify, pretty-print)source:http://elfz.laacz.lv/beautify/beautify.php
