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Active Record snapshotting (Model data base history)

Updated about a year ago by BizleyTutorials3 comments – viewed 4,955 times – ( +2 ) – version 1.1
One of the common tasks the web application might be required to perform, especially the app using some kind of a CMS, is to save the history of data changes. Your client for sure will want the answer to this simple question - If I mess this up or delete by accident can we bring it back? Well, DB backup is one thing and quick recovery is another - let's talk about latter one.

Write & use a custom Component in Yii2.0

Updated about a year ago by sirin kHow-tos4 comments – viewed 43,191 times – ( +16 ) – version 2.0
This is a simple example in Yii2.0 to understand how you can write a custom component and use it inside your app.(basic template)

Storing your images in your table's blob field and displaying that stored images.

Updated about a year ago by sirin kHow-tos7 comments – viewed 30,735 times – ( +9 / -1 ) – version 1.1
He im giving you a very simple example ie how you can store an image to your blob field in a table.Hope you already familiar with the normal image upload.
tags: blob, image

Solution for session lose of Facebook iframe application in Internet Explorer .

Updated about a year ago by sirin kTips0 comments – viewed 7,673 times – ( +2 ) – version 1.1
Facebook iframe app’s session is losing in Internet Explorer when doing a second redirection inside the facebook iframe app.The main reason is ,by default IE wont allow cookies in its priavacy settings If cookies not available means session is also not available for our Facebook iframe app in IE.

mysql performance tip

Updated about a year ago by sirin kTips2 comments – viewed 9,279 times – ( +2 / -1 ) – version 1.1
When we are doing an insert of huge no.of rows into an SQL table ,Normally we will try to write separate insert quries this may lead us to a long duration of execution time and we can increase the speed of executing SQL quries by adding all the rows into a single insert query.
tags: mysql

Importing CSV file to mysql table using "LOAD DATA" command.

Updated about a year ago by sirin kTips6 comments – viewed 45,058 times – ( +7 ) – version 1.1
hi, Here i am giving you some simple step to import huge data from a csv file to your mysql table.this is useful when you have a very huge data to import from csv format.
tags: csv, mysql, import

Get notified about the status of a Facebook user in your web app using periodic Ajax calls.

Updated about a year ago by sirin kTips0 comments – viewed 6,879 times – ( +4 ) – version 1.1
hello, This article is helpful only if you have the following situation: A web app which uses facebook login to login its users and if a user is logged out from his/her facebook account through another browser tab, then your app dont know that he is logged out out or not from his facebook account and he/she will remain as logged in your web application.Its ok if you have no problem with this situation.But if you want to forcefully logout the user from your application if he is logged out from his facebook account means you can try this example.This example uses periodic ajax calls to facebook's graph api to check whether the user is logged in or not.
tags: facebook, user

Facebook DeAuthorize callback URL and its response data.

Updated about a year ago by sirin kTutorials1 comment – viewed 12,397 times – ( +3 ) – version 1.1
Facebook Deauthorize callback is used to getting notification to the app owner when a user uninstall our app from their fan page or profile.
tags: facebook

Displaying image in a CGridView column.

Updated about a year ago by sirin kHow-tos5 comments – viewed 59,119 times – ( +13 / -1 ) – version 1.1
This is a simple example of how we can display images in CGridviews.Imagine that you have an image field in your table ie either a location field or a blob type field used to store the images.
tags: CGridView, image

Building a REST API in Yii2.0

Updated about a year ago by sirin kTutorials6 comments – viewed 78,925 times – ( +9 ) – version 2.0
This is wiki page is useful if you are trying to build a customized REST API in Yii2.0
tags: yii2.0, REST API