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  • Email Validation from WTForm using Flask

    - by lost9123193
    I'm following a Flask tutorial from http://code.tutsplus.com/tutorials/intro-to-flask-adding-a-contact-page--net-28982 and am currently stuck on the validation step: The old version had the following: from flask.ext.wtf import Form, TextField, TextAreaField, SubmitField, validators, ValidationError class ContactForm(Form): name = TextField("Name", [validators.Required("Please enter your name.")]) email = TextField("Email", [validators.Required("Please enter your email address."), validators.Email("Please enter your email address.")]) submit = SubmitField("Send") Reading the comments I updated it to this: (replaced validators.Required with InputRequired) (same fields) class ContactForm(Form): name = TextField("Name", validators=[InputRequired('Please enter your name.')]) email = EmailField("Email", validators=[InputRequired("Please enter your email address.")]), validators.Email("Please enter your email address.")]) submit = SubmitField("Send") My only issue is I don't know what to do with the validators.Email. The error message I get is: NameError: name 'validators' is not defined I've looked over the documentation, perhaps I didn't delve deep enough but I can't seem to find an example for email validation.

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  • XML Validation

    - by Keya
    Hi, I want to validate an XML file against RELAXNG schema provided. Searching on the net gave me hints to create a Schema instance using SchemaFactory by providing the appropriate Schema Language. So as per my requirement I used: *SchemaFactory.newInstance(XMLConstants.RELAXNG_NS_URI);* But the following exception was thrown at run: Exception in thread "main" java.lang.IllegalArgumentException: No SchemaFactory that implements the schema language specified by: http://relaxng.org/ns/structure/1.0 could be loaded at javax.xml.validation.SchemaFactory.newInstance(SchemaFactory.java:207) I am using Java6 and observed that only 'W3C_XML_SCHEMA_NS_URI' works. Rest all the schema URIs throws the similar exception. I am fairly new to using the XML validation APIs. Can someone please provide me the appropriate usage in case I am not doing it correctly? Thanks & Regards, Keya

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  • MVC2 Client-Side Validation for injected Ajax content

    - by radu-negrila
    Hi, I am making an Ajax call and adding content to a form inside a MVC2 app. I need to update the Client Validation Metadata with the validation for my new content. <script type="text/javascript"> //<![CDATA[ if (!window.mvcClientValidationMetadata) { window.mvcClientValidationMetadata = []; } window.mvcClientValidationMetadata.push({"Fields":[{" ... </script> Is there a way to generate this metadata for a partial view ? Thanks in advance.

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  • ASP.NET MVC Validation - localisation of the error string

    - by gmang
    I followed the techique ASP.NET MVC 2: Model Validation from Scott Gu. (http://weblogs.asp.net/scottgu/archive/2010/01/15/asp-net-mvc-2-model-validation.aspx). However I am building a localised web site. How can I localized the error string? I tried the following by replacing the following: [RegularExpression(@"\d{4}",ErrorMessage="Must be a 4 digit year")] public Nullable YearOfWork { get; set; } With the following: [RegularExpression(@"\d{4}",ErrorMessage=Resources.SharedStrings.search_error1)] public Nullable YearOfWork { get; set; } but I get a complilation error: An attribute argument must be a constant expression, typeof expression or array creation expression of an attribute parameter type Please help!

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  • javascript form validation in rails?

    - by Elliot
    Hey guys, I was wondering how to go about form validation in rails. Specifically, here is what I'm trying to do: The form lets the user select an item from a drop down menu, and then enter a number along with it. Using RJS, the record instantly shows up in a table below the form. Resetting the form with AJAX isn't a problem. The issue is, I don't want the person to be able to select the same item from that drop down menu twice (in 1 day at least). Without using ajax, this isn't a problem (as I have a function for the select statement currently), but now that the page isn't reloading, I need a way to make sure people cant add the same item twice in one day. That said, is there a way to use some javascript/ajax validation to make sure the same record hasn't been submitted during that day, before a duplicate can be created? Thanks in advance! Elliot

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  • WPF Validation & IDataErrorInfo

    - by Jefim
    A note - the classes I have are EntityObject classes! I have the following class: public class Foo { public Bar Bar { get; set; } } public class Bar : IDataErrorInfo { public string Name { get; set; } #region IDataErrorInfo Members string IDataErrorInfo.Error { get { return null; } } string IDataErrorInfo.this[string columnName] { get { if (columnName == "Name") { return "Hello error!"; } Console.WriteLine("Validate: " + columnName); return null; } } #endregion } XAML goes as follows: <StackPanel Orientation="Horizontal" DataContext="{Binding Foo.Bar}"> <TextBox Text="{Binding Path=Name, ValidatesOnDataErrors=true}"/> </StackPanel> I put a breakpoint and a Console.Writeline on the validation there - I get no breaks. The validation is not executed. Can anybody just press me against the place where my error lies?

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  • WPF Validation in an ElementHost control

    - by Jon Mitchell
    I've got a WinForms form that contains an ElementHost control (which contains a WPF UserControl) and a Save button. In the WPF UserControl I've got a text box with some validation on it. Something like this... <TextBox Name="txtSomething" ToolTip="{Binding ElementName=txtSomething, Path=(Validation.Errors).[0].ErrorContent}"> <Binding NotifyOnValidationError="True" Path="Something"> <Binding.ValidationRules> <commonWPF:DecimalRangeRule Max="1" Min="0" /> </Binding.ValidationRules> </Binding> </TextBox> This all works fine. What I want to do however, is disable the Save button while the form is in an invalid state. Any help would be greatly appreciated.

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  • Changing error message for datatype validation?

    - by Matthias
    Hey guys, I've a small question on ASP.NET MVC 2. I'm using Data Annotations on my Presentation Model and its model binder per default. But one step back, I want to do the most elementary thing: validation of the data type. Let's say I have an "int ID" on my model and want to edit the according entity in my view. If I enter something wrong like "foo", then I get a model error back, but the validation message is on English. I want to have this message in other languages, too. How can I do this? I remember that in MVC 1 I've written a custom model binder which checks the data types, but that's not what I want to do (at least not in MVC 2). Thus I hope there is a better way... Thanks, Matthias

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  • Using jQuery for client side validation in MVC2 RTM

    - by tigermain
    Scott Gu's tutorial on Model validation gets us all set up with the MS client side validation using the following scripts: <script src="../../Scripts/jquery.validate.min.js" type="text/javascript"></script> <script src="../../Scripts/MicrosoftMvcValidation.js" type="text/javascript"></script> However I've seen various posts allowing us to utilise jQuery instead with the following code: <script src="https://ajax.microsoft.com/ajax/jquery/jquery-1.4.2.min.js" type="text/javascript"></script> <script src="https://ajax.microsoft.com/ajax/jQuery.Validate/1.6/jQuery.Validate.min.js" type="text/javascript"></script> <script src="<%= Url.Content("~/scripts/MicrosoftMvcJQueryValidation.js") %>" type="text/javascript"></script> However MicrosoftMvcJQueryValidation.js does not ship with the solution and from what I read it should be part of the Futures pack which is no longer available on CodePlex. I managed to find a version alongside jQuery 1.3.2 but it does not work. What is the forward going solution!?

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  • mvc2 validation problem (ambiguous reference between model and models)

    - by ile
    I followed instructions for mvc validation but I can't manage to solve this problem.... This is linq to sql model: I set Entity namespace to be CMS.Model If I try to declare partial class Article in Portal.Models namespace: public partial class Article { .... } Then, after using Article article somewhere in code I get following error: 'Article' is an ambiguous reference between 'Portal.Models.Article' and 'CMS.Model.Article' Portal is project name and CMS is area.... I followed these instructions I aslo created NerdDinner from scratch and in that example validation works. I can't figure out what am I doing wrong... someone noticed my mistake? Is it related with giving name to Entity namespace (in tutorial they used default one) Thanks in advance! PS I'd like to note that I'm c# newbie so I'm not really familiar with these partial classes

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  • Jquery Live Validation

    - by sico87
    Hello Everyone, After having a search around I could not find exactly what I want, I am looking to validate a form client side using the Jquery library and some form of validation plugin. I was hoping that some one could advise me on whether there are any validation plugins out there that do not use generic error messages, as my form is laid out with no room for these errors, and I also I want the validator to to for correct content as well. Basically I want to be able to check the field on each key press and blur and if the fields validates for it to gain a green border, and if it does not validate for it to gain a red border, any one know of a plugin that can do this? Thanks sico87

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  • how to prevent white spaces in a regular expression regex validation

    - by Rees
    i am completely new to regular expressions and am trying to create a regular expression in flex for a validation. using a regular expression, i am going to validate that the user input does NOT contain any white-space and consists of only characters and digits... starting with digit. so far i have: expression="[A-Za-z][A-Za-z0-9]*" this correctly checks for user input to start with a character followed by a possible digit, but this does not check if there is white space...(in my tests if user input has a space this input will pass through validation - this is not desired) can someone tell me how i can modify this expression to ensure that user input with whitespace is flagged as invalid?

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  • Excel Data List Validation in Powershell

    - by idazuwaika
    Hi, I have a range named "STATE". I want to set data validation in range ("A1") to only take value within this range using Powershell. Below is what I have tried. Does not work. I dont know what to put as 4th and 5th parameters. The first 3 are Excel constants equivalent to xlValidateList, xlValidAlertStop and xlBetween respectively. $ws.Range("A1").Validation.Add(3, 1, 1, "=STATE", 0) Please help. Thanks.

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  • PHP form validation question?

    - by GeNx
    I have a form that validates the email address and I want to be able to place echo '<p class="error">Please enter a valid email address!</p>'; anywhere on the web page without having to put the validation process within the html? Or should I include the validation process in the HTML form? Here is the php code. if (preg_match ('/^[\w.-]+@[\w.-]+\.[A-Za-z]{2,6}$/', $_POST['email'])) { $email = mysqli_real_escape_string($mysqli, strip_tags($_POST['email'])); } else { echo '<p class="error">Please enter a valid email address!</p>'; }

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  • Suspend file validation on Zend Framework

    - by dimitris mistriotis
    Hi, Currently on my application I have a form where I ask the user to upload an image file to be used as a logo. I want to allow the user to reset that to nothing by supplying no file (by just pressing the upload button from the browser). In this scenario the only thing left is to suspend file validation when no file is included. Currently I get the *self::NO_FILE* error from the *Zend_Validate_File_Upload* class. Is there any way to suspend the validation so that nothing will be checked if no file has been provided?

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  • How can Request Validation be disabled for HttpHandlers?

    - by Mun
    Is it possible to disable request validation for HttpHandlers? A bit of background - I've got an ASP.NET web application using an HttpHandler to receive the payment response from WorldPay. The IIS logs show that the handler is being called correctly from WorldPay, but the code inside the handler is never called. If I create a physical ASPX page and set ValidateRequest=false in the header, and put the same code in the Page_Load method, the code is called without any problems. This solves the problem, though I'd prefer to stick with using an HttpHandler for this as it's better suited for this type of functionality, rather than having an empty ASPX page, though this is dependent on being able to disable request validation. The web application is using ASP.NET 2.0 and the server is IIS6.

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  • Dynamic data validation in ASP.NET MVC

    - by user252160
    I've recently read about the model validation capabilities of ASP.NET MVC which are all very cool until a certain point. What happens if the application doesn't know the data that it works with because it is all stored in DB and built together at runtime. Just like in Drupal, I'd like to be able to define custom types at runtime, and assign runtime validation rules as well. Obviously, the idea of assigning attributes to well established models is now gone. What else could be done ? I am thinking in terms of rules being stored as JSON objects in the DB fields or something like that.

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  • Good input validation loop using cin - C++

    - by Alex
    Hi there, I'm in my second OOP class, and my first class was taught in C#, so I'm new to C++ and currently I am practicing input validation using cin. So here's my question: Is this loop I constructed a pretty good way of validating input? Or is there a more common/accepted way of doing it? Thanks! Code: int taxableIncome; int error; // input validation loop do { error = 0; cout << "Please enter in your taxable income: "; cin >> taxableIncome; if (cin.fail()) { cout << "Please enter a valid integer" << endl; error = 1; cin.clear(); cin.ignore(80, '\n'); } }while(error == 1);

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  • jquery form validation

    - by kalpaitch
    I am using jquery for a quick and easy form validation My forms use the input's default value as a label and I have a little onfocus and onblur javascript function to show and hide this when the user starts to type: <input name='fnameREG' type='text' id='fnameREG' value='first name' size='70' onfocus='clearInput(this)' onblur='clearInput(this)' /> <input name='lnameREG' type='text' id='lnameREG' value='last name' size='70' onfocus='clearInput(this)' onblur='clearInput(this)' /> My issue with the validation is that when the submit button is clicked the pluggin thinks that all the fields are set because they have a default value. I looked but I couldn't find a supplied method to get round this. Thanks!

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  • Is it possible to group validation?

    - by lambdabutz
    I am using a lot of my own validation methods to compare the data from one association to the other. I've noticed that I'm constantly checking that my associations aren't nil before trying to call anything on them, but I am also validating their presence, and so I feel that my nil checks are redundant. Here's an example: class House < ActiveRecord::Base has_one :enterance, :class => Door has_one :exit, :class => Door validates_presence_of :enterance, :exit validate :not_a_fire_hazard def not_a_fire_hazard if enterance && exit && enterance.location != exit.location errors.add_to_base('If there is a fire you will most likely die') return false end end end I feel like I am repeating myself by checking the existence of enterance and exit within my own validation. Is there a more "The Rails Way" to do this?

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  • immediate=true is set on a jsf command button but still seeing validation

    - by Zack Macomber
    I have the following command button set up in a facelet: <h:commandButton action="#{addressAction.deletePreviousAddress}" value="#{bundle['button.deleteAddress']}" styleClass="deg-form-button" immediate="true"> <f:setPropertyActionListener target="#{addressAction.addressActionForm.previousAddress}" value="#{address}"> </f:setPropertyActionListener> </h:commandButton> In AddressAction, the following code gets run to delete a previous address on the form: public Enum<NavigationConstants> deletePreviousAddress() { addressActionForm.getPreviousAddresses().remove(addressActionForm.getPreviousAddress()); return NavigationConstants.addresses; } Before I made the address input components "required=true", this code worked fine and removed the previous address from the jsf form successfully. Right now, I can't successfully delete a previous address because validation is occurring and stating that the input components need to be filled in on the previous address record on the form. How can I bypass this validation? I thought the "immediate=true" attribute on the command button would have accomplished it but that's not cutting it in my case...

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  • Validation errors from Google App Engine Logout link

    - by goggin13
    I am making a web page using the Google App Engine. I am validating my pages, and found that the logout link that is generated by the call to the users api (in python) users.create_logout_url(request.uri) does not validate as XHTML 1.0 Strict. The href in the anchor tag looks like this: /_ah/login?continue=http%3A//localhost%3A8080/&action=Logout Including a link with this anchor text throws three different validation errors: *general entity "action" not defined and no default entity *reference to entity "action" for which no system identifier could be generated *EntityRef: expecting ';' Here is a dummy page with the anchor tag in it, if you want to try it on w3c validator.Dummy Page. The logout link wont work, but you can see how the page is valid without it, but the actual text inside the href tag breaks the validation. Any thoughts on whats going on? Thank you!

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  • ASP.NET client side validation with dataannotations - javascript minimumlength zero

    - by Kordonme
    Hi! I'm doing client side validation on a project I'm working on. Everything works, except for the minimumlength property of the StringLength attribute (it works when submitting and a serverside validation is done): [StringLength(50, MinimumLength = 6)] The javascript generated by Html.EnableClientValication(); is the following: // snip {"FieldName":"User.Password","ReplaceValidationMessageContents":true,"ValidationMessageId":"User_Password_validationMessage","ValidationRules":[{"ErrorMessage":"The field Password must be a string with a minimum length of 6 and a maximum length of 50.","ValidationParameters":{"minimumLength":0,"maximumLength":50},"ValidationType":"stringLength"}]}],"FormId":"form0","ReplaceValidationSummary":false}) The important thing is here: {"minimumLength":0,"maximumLength":50} It produces javascript with the wrong minimumproperty. You guys have a hint? Is this a possible bug?

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