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How to upload a file using a model

Updated 4 months ago by KonApazTutorials26 comments – viewed 270,756 times – ( +80 / -6 ) – version 1.1
First declare an attribute to store the file name in the model class (either a form model or an active record model). Also declare a file validation rule for this attribute to ensure a file is uploaded with specific extension name.
tags: File upload

Dynamic Sidebar using CClipWidget

Updated 4 months ago by CozumelHow-tos5 comments – viewed 20,452 times – ( +21 ) – version 1.1
Most applications will have one or two sidebars and often you want to control the content that should appear in the sidebar based on the action. For example you will want to show something different on the homepage as opposed to some view page. While achieving this you generally also want to avoid putting the layout into each view, as that would mean if you wanted to change the layout (e.g. put the sidebar on the left instead of the right or do some funky layout which requires an additional div tag to be added) you'd have to go through every view, which does not achieve good code re-use. It is also bad practice to have lots of if statements in column2 layout just so that you can generate the sidebar correctly.

How to use ldap in UserIdentity for authentication

Updated 4 months ago by NavarrTutorials14 comments – viewed 31,810 times – ( +11 ) – version 1.1
Yii does not have an LDAP class itself, but its very easy to implement LDAP in the stock UserIdentity class.

Drop down list with enum values for column of type ENUM >+> incorporate into giix

Updated 4 months ago by nsandenHow-tos2 comments – viewed 20,386 times – ( +14 ) – version 1.1
Let's say our table 'mug' has a column named 'color' of the type ENUM('red','green','blue'). We want to replace the textfield for the attribute color in the create and update forms of a 'mug' with a drop down list, which has the enum values as options. The main code was contributed by zaccaria in the forum (see this post).

jQuery UI Datepicker

Updated 4 months ago by ShahcheragheanHow-tos9 comments – viewed 37,517 times – ( +12 ) – version 1.1
We all love the convenient gadget, namely jQuery UI Datepicker as an input element for date. Yii supports it as CJuiDatePicker. Let's see how to use it.

Creating a dependent dropdown

Updated 4 months ago by ShahcheragheanTutorials36 comments – viewed 215,195 times – ( +103 / -3 ) – version 1.1
Often you'll need a form with two dropdowns, and one dropdown's values will be dependent on the value of the other dropdown. Using Yii's built-in AJAX functionality you can create such a dropdown.

Adding a date range search for CGridView the easy way

Updated 4 months ago by mikewalenTips4 comments – viewed 12,809 times – ( +10 ) – version 1.1
After a lot of research, everything I found on adding date range searching to a CGridView advanced search form seemed to involve adding two new public variables (e.g. $date_from, $date_to), 'safe' rules for the new variables, and a rather chunky if/elseif/else check in the search() method. This probably isn't a hassle for most, but because many of the tables in my database contain two or three and sometimes four date columns (e.g. date_created, date_modified, date_deleted etc.), it meant I was having to add up to eight public variables, the corresponding safe rules, and modifying the search() criteria for each date attribute. So, I set about creating a better way and I thought I'd share my work with the community.

Catching bounce messages (NDR) and piping them to a Yii command

Updated 4 months ago by bennounaTutorials0 comments – viewed 5,500 times – ( +1 ) – version 1.1
In order to avoid bounce messages and unsolicited registrations, most webapps send automatic activation emails upon user registration, and the account remain inactive as long as it is not activated. Better yet, you can periodically purge your data by removing accounts that have not yet been activated.

Real-time display of server push data using Server-Sent Events (SSE)

Updated 4 months ago by bennounaHow-tos15 comments – viewed 25,239 times – ( +12 ) – version 1.1
There are several methods and techniques that come handy in the case you need to call an external resource periodically or if you are waiting for a server push, but I present here an easy and straightforward one using HTML5's Server-Sent Events (SSE).

defaultScope

Updated 4 months ago by Gerhard LiebenbergHow-tos4 comments – viewed 8,425 times – ( +3 / -1 ) – version 1.1
This example includes a composite condition as well as an empty condition - as if you bypass or disable defaultScope without using resetScope().