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  • Entity and pattern validation vs DB constraint

    - by Joerg
    When it comes to performance: What is the better way to validate the user input? If you think about a phone number and you only want numbers in the database, but it could begin with a 0, so you will use varchar: Is it better to check it via the entity model like this: @Size(min = 10, max = 12) @Digits(fraction = 0, integer = 12) @Column(name = "phone_number") private String phoneNumber; Or is it better to use on the database side a CHECK (and no checking in the entity model) for the same feature?

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  • aspect parameter validation [closed]

    - by user12558
    Hi, Im doing a POC using Aspectj. class BaseInfo{..} class UserInfo extends BaseInfo{..} class UserService { public void getUser(UserInfo userInfo){..} public void deleteUser(String userId){..} } I've defined an advice, that gets invoked when I pass an UserInfo instance.But when i try to pass the BaseInfo, the advice is not getting invoked. Below block executes the afterMethod as expected for getUser. &ltaop:pointcut id="aopafterMethod" expression="execution(* UserService.*(..,UserInfo,..))" / &gtaop:after pointcut-ref="aopafterMethod" method="afterMethod" / But when i try to give BaseInfo instead of UserInfo, the aspect is not getting triggered. Am i missing something? Kindly help me on this issue.

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  • Technical Article: Oracle Magazine Java Developer of the Year Adam Bien on Java EE 6 Simplicity by Design

    - by janice.heiss(at)oracle.com
    Java Champion and Oracle Magazine Java Developer of the Year, Adam Bien, offers his unique perspective on how to leverage new Java EE 6 features to build simple and maintainable applications in a new article in Oracle Magazine. Bien examines different Java EE 6 architectures and design approaches in an effort to help developers build efficient, simple, and maintainable applications.From the article: "Java EE 6 consists of a set of independent APIs released together under the Java EE name. Although these APIs are independent, they fit together surprisingly well. For a given application, you could use only JavaServer Faces (JSF) 2.0, you could use Enterprise JavaBeans (EJB) 3.1 for transactional services, or you could use Contexts and Dependency Injection (CDI) with Java Persistence API (JPA) 2.0 and the Bean Validation model to implement transactions.""With a pragmatic mix of available Java EE 6 APIs, you can entirely eliminate the need to implement infrastructure services such as transactions, threading, throttling, or monitoring in your application. The real challenge is in selecting the right subset of APIs that minimizes overhead and complexity while making sure you don't have to reinvent the wheel with custom code. As a general rule, you should strive to use existing Java SE and Java EE services before expanding your search to find alternatives." Read the entire article here.

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  • Advantages to Server Scripting languages over Client Side Scripting languages

    There are numerous advantages to server scripting languages over client side scripting languages in regards to creating web sites that are more compelling compared to a standard static site. Server side scripts are executed on a web server during the compilation of data to return to a client. These scripts allow developers to modify the content that is being sent to the user prior to the return of the data to the user as well as store information about the user. In addition, server side scripts allow for a controllable environment in which they can be executed. This cannot be said for client side languages because the developer cannot control the users’ environment compared to a web server. Some users may turn off client scripts, some may be only allow limited access on the system and others may be able to gain full control of the environment.  I have been developing web applications for over 9+ years, and I have used server side languages for most of the applications I have built.  Here is a list of common things I have developed with server side scripts. List of Common Generic Functionality: Send Email FTP Files Security/ Access Control Encryption URL rewriting Data Access Data Creation I/O Access The one important feature server side languages will help me with on my website is Data Access because my component will be backed with a SQL server database. I believe that form validation is one instance where I might see server side and client side scripts used interchangeably because it does not matter how or where the data is validated as long as the data that gets inserted is valid.

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  • Validating allowed characters or validating disallowed characters

    - by Tom
    I've always validated my user input based on a list of valid/allowed characters, rather than a list of invalid/disallowed characters (or simply no validation). It's just a habit I picked up, probably on this site and I've never really questioned it until now. It makes sense if you wish to, say, validate a phone number, or validate an area code, however recently I've realised I'm also validating input such as Bio Text fields, User Comments, etc. for which the input has no solid syntax. The main advantage has always seemed to be: Validating allowed chars reduces the risk of you missing a potentially malicious character, but increases the risk the of you not allowing a character which the user may want to use. The former is more important. But, providing I am correctly preventing SQL Injection (with prepared statements) and also escaping output, is there any need for this extra barrier of protection? It seems to me as if I am just allowing practically every character on the keyboard, and am forgetting to allow some common characters. Is there an accepted practice for this situation? Or am I missing something obvious? Thanks.

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  • Codeigniter: How to build an edit form that uses form validation and re-population?

    - by Sergio
    Hi There, I have a simple form in codeigniter that I wish to use for the editing or records. I am at the stage where my form is displayed and the values entered into the corresponding input boxes. This is done by simply setting the values of said boxes to whatever they need to be in the view: <input type="text" value="<?php echo $article['short_desc'];?>" name="short_desc" /> But, if I wish to use form_validation in codeigniter then I have to add thos code to my mark-up: <input value="<?php echo set_value('short_desc')?>" type="text" name="short_desc" /> So not the value can be set with the set_value function should it need to be repopulated on error from the post data. Is there a way to combine the two so that my edit form can show the values to be edited but also re-populate? Thanks

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  • How do I allow inline images with data urls on .NET 4 without triggering request validation?

    - by Johan Driessen
    I'm using the jQuery jstree plugin (http://jstree.com) in a ASP.NET MVC 2 project on .NET 4 RC. It comes with some stylesheets with inline images with data urls, like this: .tree-checkbox ul { background-image:url(data:image/gif;base64,R0lGODlhAgACAIAAAB4dGf///yH5BAEAAAEALAAAAAACAAIAAAICRF4AOw==); } Now, the url for the background image contains a colon, which .NET 4 thinks is an unsafe character, so I get this error message: A potentially dangerous Request.Path value was detected from the client (:). According to the documentation, I am supposed to be able to prevent this by adding <pages validateRequest="false" /> to my Web.config, but that doesn't seem to help. I have tried adding it to the main Web.config for the application, as well as to a special Web.config in the /config folder, but to no avail. Is there any way to get .NET to allow this?

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  • How come module-level validation errors only display when property-level validators are Valid?

    - by jonathanconway
    I'm using the module-level validator: 'PropertiesMustMatch' on my view-model, like so: [PropertiesMustMatch("Password", "PasswordConfirm")] public class HomeIndex { [Required] public string Name { get; set; } public string Password { get; set; } public string PasswordConfirm { get; set; } } I'm noticing that if I submit the form without Name filled in, the ValidationSummary() helper returns only the following error: The Name field is required. However, if I fill in Name, then ValidationSummary() will return a PropertiesMustMatch error: 'Password' and 'PasswordConfirm' do not match. So it looks like the property-level validators are being evaluated first, then the model-level validators. I would much prefer if they were all validated at once, and ValidationSummary would return: The Name field is required. 'Password' and 'PasswordConfirm' do not match. Any ideas what I can do to fix this? I'm studying the MVC 2 source-code to try to determine why this happens.

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  • How make this special many2many fields validation using Django ORM?

    - by e-satis
    I have the folowing model: class Step(models.Model): order = models.IntegerField() latitude = models.FloatField() longitude = models.FloatField() date = DateField(blank=True, null=True) class Journey(models.Model): boat = models.ForeignKey(Boat) route = models.ManyToManyField(Step) departure = models.ForeignKey(Step, related_name="departure_of", null=True) arrival = models.ForeignKey(Step, related_name="arrival_of", null=True) I would like to implement the following check: # If a there is less than one step, raises ValidationError. routes = tuple(self.route.order_by("date")) if len(routes) <= 1: raise ValidationError("There must be at least two setps in the route") # save the first and the last step as departure and arrival self.departure = routes[0] self.arrival = routes[-1] # departure and arrival must at least have a date if not (self.departure.date or self.arrival.date): raise ValidationError("There must be an departure and an arrival date. " "Please set the date field for the first and last Step of the Journey") # departure must occurs before arrival if not (self.departure.date > self.arrival.date): raise ValidationError("Departure must take place the same day or any date before arrival. " "Please set accordingly the date field for the first and last Step of the Journey") I tried to do that by overloading save(). Unfortunately, Journey.route is empty in save(). What's more, Journey.id doesn't exists yet. I didn't try django.db.models.signals.post_save but suppose it will fail because Journey.route is empty as well (when does this get filled anyway?). I see a solution in django.db.models.signals.m2m_changed but there are a lot of steps (thousands), and I want to avoid to perform an operation for every single of them.

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  • Accessing the value of a Richfaces calendar during validation.

    - by JBristow
    I am trying to validate a field based on another field's value. <h:form id="item"> <s:validateAll/> <h:selectBooleanCheckbox id="selected" value="#{bean.selected}" validator="selectedValidator"/> <rich:calendar id="startDate" value="#{bean.startDate}"/> </h:form> However, inside my validator. public void validate(FacesContext context, UIComponent component, Object value) throws ValidatorException { UIInput startComp = (UIInput) context.getViewRoot().findComponent("item:startDate"); if(value != null && value) { // Check value of startComp and throw exception if null or empty. } } The component startComp resolves, but has no value. Where is the value that appears in the text box of the richfaces calendar component?

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  • CakePHP: Same model, set up per form validation rules?

    - by mwaterous
    I have a single model in CakePHP that has multiple forms on different pages of the site that I would like to validate differently even where the field name is the same - I have discovered that you can set 'on' to create|update which has been a handy discovery but I am wondering if there is any other way of explicitly declaring rules based on the form that was submitted? Just to rephrase for clarity, form a and form b contain fields of the same name, but if form a is submitted the fields in question should be validated differently than if they were submitted from form b. Possible?

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  • Struts2 JPA Validation error how to forward to action and not lose ActionErrors messages ?

    - by Sebastien Dionne
    I'm using Hibernate validator 4.1 to validate my entity. I have a dashboard that I can access from the action : viewDashboard. In my action, I load 2 List in my acion like this. public String execute() throws Exception { listDocteur = service.listDocteur(); listUser = service.listUser(); return SUCCESS; } In the DashBoard, I have a submit that can add a User. <action name="saveUser" class="com.test.action.CreateUserAction" method="execute" <interceptor-ref name="mybasicStackWithValidation" </interceptor-ref <result name="input"/WEB-INF/jsp/viewDashboard.jsp</result <result name="success" type="redirectAction"viewDashboard</result </action if I submit invalid value, I'll see the error messages, but I'll lose my 2 Lists. If I have a type="redirectAction".. I lose the error messages. in Struts 1, I would forward to the action viewDashboard.do without a redirect and that will works.. but How to do that in Struts2 ?

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  • How to get rid of this w3 validation error?

    - by Pandiya Chendur
    I developed a web page and now i am validating it with w3c HTML4.0... I got one error it says Error Line 30, Column 57: there is no attribute "DATA-FLEXMENU" href="about.php" class="mainlink" data-flexmenu="flexmenu1">About Us</a></div> You have used the attribute named above in your document, but the document type you are using does not support that attribute for this element. This error is often caused by incorrect use of the "Strict" document type with a document that uses frames (e.g. you must use the "Transitional" document type to get the "target" attribute), or by using vendor proprietary extensions such as "marginheight" (this is usually fixed by using CSS to achieve the desired effect instead). Any ways of getting rid of this error .... Any suggestion...

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  • ASP.net MVC How to change the Textbox Class upon validation failure?

    - by Harry
    I notice in the default MVC template project that the Account registration fields are highlighted via a class change. I can't seem to get the same behavour out of my own code (in the same project - same CSS etc) What might be stopping this from occuring? Update I believe this relates to one of my other questions Because I was having trouble with NullReferenceExceptions I have changed the Html.ValidationMessage fields to have different names than the target fields. So really, I need to resolve this question

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  • How to wait for ajax validation to complete before submitting a form?

    - by Jung
    Having a problem where the form submits before the validateUsername function has a chance to complete the username check on the server-side. How do I submit the form only after the validateUsername function completes? Hope this is clear... form.submit(function(){ if (validateUsername() & validateEmail() & validatePassword()) { return true; } else { return false; } }); function validateUsername(){ usernameInfo.addClass("sign_up_drill"); usernameInfo.text("checking..."); var b = username.val(); var filter = /^[a-zA-Z0-9_]+$/; $.post("../username_check.php",{su_username:username.val()},function(data) { if (data=='yes') { username.addClass("error"); usernameInfo.text("sorry, that one's taken"); usernameInfo.addClass("error"); return false; } else if (!filter.test(b)) { username.addClass("error"); usernameInfo.text("no funny characters please"); usernameInfo.addClass("error"); return false; } else { username.removeClass("error"); usernameInfo.text("ok"); usernameInfo.removeClass("error"); return true; } }); }

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