Working with Groovy while learning grails is unavoidable, though not too deep, but it's also helpful to know a few features.
1. Get integers after dividingUse the intdiv () method to get an integer, note that this method only applies to dividing two integers , floating-point numbers do notIf,while acceptable type of 2.Groovy
Boolean
Number 0 is false, others are true
String null character "" is false, others are true
The obj
G5. User.listorderbydepartment () *.department.unique ()
What this statement can do. G5 is the program name, user is the domain name is the database name, department is the field name, this statement means to remove all data from the user database and Sort by department field, Separate the Department this field (no data from other fields) and eliminate duplicate items.
As I understand it, grails either using list or FindAll data is an array list (Ar
There are multiple ways to implement cascading update. Now we only introduce how to implement it using the Ajax technology of the jquery framework. I personally think that jquery is better and more flexible, because it is only responsible for transmitting data, asynchronous updates provided by grails are simple and complicated.
The following code does not need to consider the business Significance
Ajax Implementation of jquery:
1. Simple code of _ for
Because the controller's name is generally capitalized, such as login at this timeClass Logincontroller {def index = {Redirect (action:Login, Params:params)}def login={}Then there will be an error that cannot be found on the login controller.Note that at this point login should be changed to lowercase beginning as followsClass Logincontroller {def index = {Redirect (action:login, Params:params)}def login={}One possible reason for grails redirect not t
Use SQL statements directly in Grails to query, you can get a new connection directly, or you can use the default data sourceQuery code:ApplicationContextctx= (ApplicationContext) Applicationholder.getapplication (). Getmaincontext () defdatasource =ctx.getbean (' DataSource ') defsql=new SQL (dataSource) StringstrSql= Select*from company "sql.eachrow (strSQL) { printlnit printlnit.id}//Need Guide Pack importgroovy.sql.Sqlimport org.codehaus.groovy.
Ai inside everyone is more recognized top conference. Alphabetical order of the same points as below.
IJCAI (1+): Ai's best comprehensive conference, beginning in 1969, opens every two years, odd years. Because the AI is too big, so although each session basically can record more than 100 (now to more than 200), but in each field is not a few, like machine learning, computer vision such a large area of abo
ajax|j2ee| Online Conference
This year everyone in the hype Web2.0, one of the technology Ajax is also followed by fire, so I wrote a paper called "Cheat Ajax" article, simply analyze the essence of AJAX technology. Although I do not like to follow the follow, but there are some areas of Ajax is more useful.
Some time ago did a EASYJF open source team of online conferencing system, used AJAX technology, the following design ideas
Description: Purely personal view, for reference only. Tier-1 is more complete, tier-2 is not complete, tier-3 is very incomplete.
In alphabetical order.
Not very strictly speaking, tier-1 can be admirable, tier-2 can be respectable,
Because Ai has a lot of related meetings, it is also good to list the tier-3.
========================================================== tier-1:
IJCAI (1+): International Joint conference on Artificial Intelligence
AAAI (
Also near the end of the year, whether large companies or small businesses, the meeting will be more and more. However, for many enterprises, the end of large and small meetings is a very headache, many enterprises are faced with the difficulties of the meeting: On the one hand, the need to face the complex preparatory work before the meeting, on the other hand, business leaders also need to consider the effect of the meeting, the interaction of the site and so on. Therefore, some mobile
Informations of 2016 International conferences in Computer Vision and Image processing(to being updated in the future)Level Conference Name Conference Location submission Deadline conference Date Website★★★★★siggraph 2016:computer Graphi CS and Interactive Techniques Anaheim, California, 2016 July 24-28, 2016 Http://s2016.siggraph.org★★★★☆ijcai 2 016:internationa
Full paper, short paper, poster, oral:
and the CV industry meeting is generally divided into three levels:Oral, the author needs to prepare PPT to stage presentation;Poster, the author put a poster, if anyone interested in the author's mural before the discussion;Workshop, is generally some Daniel feel that the field is a research hotspot, to the conference Chair application for an independent seminar, it is worth noting that workshop is an independen
This year everyone in the hype Web2.0, one of the technology Ajax is also followed by fire, so I wrote a paper called "Cheat Ajax" article, simply analyze the essence of AJAX technology. Although I do not like to follow the follow, but there are some areas of Ajax is more useful. Some time ago did a EASYJF open source team of online conferencing system, used AJAX technology, the following design ideas issued to share with you.
The function of system realization
This
Will the prize travel know geometry? Zhangjiajie Conference Guide Network comments
Today, we focus on tourism information and Tourism E-commerce Research Intelligent Travel Power QQ Group, the Zhangjiajie Conference Guide Network for Comments!
Mice (Meeting,incentive,conference and exhibition, "corporate meetings, incentive tours, conferences or events and exhibi
I. CEO of Class A Conference (collectively referred to as SIGMODACMConferenceonManagementofDataACMwww. sigmod. example. vldb. orgicdeieeeinternationalconferen
1. Class A Conference (collectively known as the Conference press site sigmod acm Conference on Management of Data ACM http://www.sigmod.org VLDB International
The PHP developer conference, which was prepared for more than half a year after the global PHP developer conference, ended last weekend. according to statistics from the backend of the conference, nearly 1000 people signed in to the conference. According to feedback from the circle of friends, it is still quite good,
Bkjia.com comprehensive report: Traditional conferences adopt face-to-face communication between participants. This meeting mode needs to gather relevant personnel in a fixed place. While retaining face-to-face communication, modern conferences have also developed more business communication modes, such as video conferences and teleconference. However, most modern conferences cannot meet the new requirements of modern enterprise business communication. Especially in the current financial environ
messages not processed in the queue; So, the application of ES architecture, When dealing with such big changes, the solution may be much more complex than the traditional. This is what I want to write the purpose of this article, I hope that through a fictitious example (in real life may also occur), to analyze the ES architecture, how we deal with this situation, we hope to be able to use the ES architecture development applications of friends to provide some reference.Then in the case of the
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.