Best Way To Use Transaction In Database Operation In CakePHP 2.X

Sometimes we need to use the database transaction for saving the data in the tables for a complex application. Like booking online tickets for any show, movies, bus and planes.

In this case there will be some probability that the data will not be saved in the database due to a reason, like network failure, database inconsistency or table integrity etc.

There might be a case where data is saved partially in some tables and will create data inconsistency. The best example we can take here is ATM. i.e. you got a message that the amount has deducted from your account but you did not receive the money from the ATM.

To handle situations like this the CakePHP 2.x provides a feature transaction. Using transactions we cannot avoid the situation but can protect the harm it causes.

To perform a transaction, a model’s table must be of a data source and type which supports transactions.

All transaction methods must be performed on a model’s Data Source object. To get a model’s Data Source from within the model use:

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How To Promote Your WordPress Website

Developing a WordPress website is not enough but to achieve more traffic and more revenue according to your expectation should be the prime objective. In your WordPress application development, your WordPress developer has implemented all necessary latest features, use of premium theme and customization to engage with your target audience, and all the necessary plugins for smooth operation.

You get all excited with your, as you are finally fleshing out the long-held dream to run your online business. You are all ready to open your shop.

In simple terms, your WordPress website is completed and you are ready to rock the party. But you get aero customers.

Even after doing hours of hard work youare not getting customers as you except earlier. After some research and analysis you came to know that the main problem is customers are not able to found your website. Nobody know about your website and you’re offered service. Inother words you can say there is lack of visibility of your website.

So, what will be the solution for that and what can you do to get your website visibility?

There are so many questions comes to mind if you will deep drive in to this. But there is one solution for all your questions and that is “Marketing”. 

 

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JavaScript Promises And Fetch API Uses Guide

 

JavaScript is an interpreted language where codes are executed line by line. But the execution will not wait for the dependent codes to be executed before you execute the next line.

To achieve this feature JavaScript introduces the callback function. Basically this is associated with the asynchronous operations in JavaScript. But the issue with the callback function is if we have more than one asynchronous operation running at the same time. So it became hell to manage the code using the callback functions.

The problems are

• Hard to understand the codes because the code becomes lengthier and nested structure.
• Hard to manage the codes, because it is not clear which callbacks are called when and also there are so many callbacks to write to perform a particular task.
• Also need not satisfy all the requirements

Here JavaScript introduces the concept of Promises.

Promises are JavaScript objects that represent an eventual completion or failure of an asynchronous operation. Promises either resolved or rejected. That means it will either return success on resolve or error on rejection.

In case of multiple asynchronous operations it provides chaining of Promises to handle that. So the code here is understandable and managed. Here is some example of callbacks and promises for your understanding

 

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How To Use Service Oriented Architecture In IOS Swift

 

It’s always interesting while talking about software and application development architecture. There are certain processes and principles which everyone need to follow for the smooth operation. Clean, reusable and bug free codes are always good for us and to implement that Service Oriented Architecture has great role.

Service-oriented architecture makes our life easier by structuring the interaction between the high-level and lower-level implementations while keeping our code reusable and structured.

So now the question arises, what exactly service oriented architecture (SOA) is?

What is Service Oriented Architecture?

Service Oriented Architecture is an architecture pattern that consolidates functionalities and business logic in such a way that services can be injected into view controllers for use. This process easily and cleanly separates the front end user interface and the back end programming and business logic.

Why Service Oriented Architecture

Service Oriented Architecture has several benefits. The most important part is it manages the business changes quickly and supports the newer channels of customer interaction. Let’s have a quick look some of the benefits below,

·         Improvement in the flow of information.

·         Flexibility in the functionalities.

·         Reduced cost in the developmental cycle.

·         Easy to manage.

·         Improvement in data confidentiality and hence more reliability.

·         Quicker system upgrades.

·         Testing has improved.

·         Reusability of codes.

·         A standard form of communication is established.

·         Allowing scalability to meet the needs of clients.

There are many patterns which can be used on the iOS development like MVC, MVVM, MVP, or VIPER. These architectural patterns handle only the higher level (UI) of our application. But soon after, we also need to implement the network managers, API clients, data sources, persistence containers, and so on.

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