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Spring MVC: How to perform validation?
...ModelAttribute("user") User user, BindingResult result){
if (result.hasErrors()){
// do something
}
else {
// do something else
}
}
Notice the @Valid : if the user happens to have a null name, result.hasErrors() will be true.
Method 2 : If you have complex validation (...
Error: “dictionary update sequence element #0 has length 1; 2 is required” on Django 1.4
I have an error message on django 1.4:
12 Answers
12
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error LNK2019: 无法解析的外部符号_socket，该符号在函数 中被引用 - c++1...
1>NetClient.obj : error LNK2019: 无法解析的外部符号 _closesocket@4，该符号在函数 _main 中被引用
1>NetClient.obj : error LNK2019: 无法解析的外部符号 _inet_ntoa@4，该符号在函数 _main 中被引用
1>NetClient.obj : error LNK2019: 无法解析的外部符...
In mocha testing while calling asynchronous function how to avoid the timeout Error: timeout of 2000
...While calling many asynchronous functions using mocha, I'm getting timeout error ( Error: timeout of 2000ms exceeded. ). How can I resolve this?
...
REST API error return good practices [closed]
I'm looking for guidance on good practices when it comes to return errors from a REST API. I'm working on a new API so I can take it any direction right now. My content type is XML at the moment, but I plan to support JSON in future.
...
django.core.exceptions.ImproperlyConfigured: Error loading MySQLdb module: No module named MySQLdb
..., django... however when i do python manage.py syncdb It gives me the same error that i have posted
– getitstarted
Mar 9 '13 at 23:13
...
Transaction count after EXECUTE indicates a mismatching number of BEGIN and COMMIT statements. Previ
...ming is still in the original transaction, only mayhem can ensure (and the error you get is the way the engine tries to protect itself).
I recommend you go over Exception handling and nested transactions which shows a pattern that can be used with nested transactions and exceptions:
create procedu...
Best Practice - NSError domains and codes for your own project/app
There is a previous SO post regarding setting up error domains for your own frameworks, but what is the best practice regarding setting up error domains and custom error codes for your own project/app ?
...
AngularJS 1.2 $injector:modulerr
... module is missing, use the not minified angular.js which gives a readable error message:"Error: [$injector:nomod] Module 'ngRoute' is not available! You either misspelled the module name or forgot to load it. If registering a module ensure that you specify the dependencies as the second argument."
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Error in plot.new() : figure margins too large, Scatter plot
...
Every time you are creating plots you might get this error - "Error in plot.new() : figure margins too large". To avoid such errors you can first check par("mar") output. You should be getting:
[1] 5.1 4.1 4.1 2.1
To change that write:
par(mar=c(1,1,1,1))
This should re...