Like Zhongguancun online, or how the Pacific Auto Multi-attribute search is done, how the idea

This post was last edited by airukongqi4321 on 2013-11-03 11:44:21

Multi-Attribute Search

http://detail.zol.com.cn/notebook_index/subcate16_0_list_4000_s1227_1_1_0_1.html Zhongguancun Online
http://price.pcauto.com.cn/price/q-p2-k75.html Pacific Motor

By clicking on an attribute, some properties of the product will be dimmed and unavailable
The feeling asks how to realize this kind of function is how the idea, how to do ...
The score is not many excuse me, hehe ....

Reply to discussion (solution)

Someone asked this before.
Two scenarios:
1 is the use of JavaScript based on the selected variable combination into a URL, this scheme needs to select First, click on a button to open the Web page (operation is a bit like commit)
2 is PHP according to each parameter to write a link, this scheme to refresh the page every time you click on a parameter, refresh the page will refer to the selected conditions of the various links to recalculate the output

The 2 transformation scheme is AJAX

View-source:http://detail.zol.com.cn/notebook_index/subcate16_0_list_4000_s1227_1_1_0_1.html

 
  
  

   
   
  Brand
 
  
  
    
 
  
  

   
                                               
  Not 
   Limited                                                                                        Lenovo                                Asus                                Dell                                HP                                Shenzhou                                acer acer?.....
 
  
  
 
  
  

   
   
  Price
 
  
  
    
 
  
  

   
   
                          Not limited to                                        1999 yuan or less                2000-2499 yuan                2500-2999 yuan
 
  
  

Obviously, the connection is generated by the server.

View-source:http://price.pcauto.com.cn/price/q-p2-k75.html

Price: Unlimited 50,000 or less 580,000 8.1 million 10.15 million 15.2 million 20.25 million ... Level: not limited to mini-car compact car medium-sized car mid-size car

The same is true

Common ideas or background integration in the URL output to the foreground bar.

Ajiax Background processing data

The simplest way Ajax gets data output

In fact, the crux of the problem is: "How to determine the existence of other attributes through a single attribute of a Thing";

If the condition is every point, will go to the database to take it, it is not difficult to achieve, such as a point

"580,000" This condition, the most stupid way is just in the background
SELECT * from Auto_detail where Market_price >= 50000 and Market_price < 80000;
(Suppose Auto_detail is a detailed table of all models that store all the vendors)

The returned result may have hundreds of, and then loop over the result, and each will return the set of Auto_grade,car_brand .... (slightly); All in a two-dimensional array.

That "all car grade, car brand. "Wait, what about the data?" Nothing more than select distinct auto_grade from XXX only.
Do a good job of all this contrast, do not have to constantly update the data put in the cache, you do not have to go to the database every time.

Then it is simple, to judge separately, Auto_grade those attributes are there, those attributes are not, and then return an array to jquery, control the page to change the style.

That's the dumbest thing to do, right?

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