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  • validating creation by post_id and ip_address - Ruby on Rails

    - by bgadoci
    I have created a blog application using Ruby on Rails which includes the ability to vote on posts. A user can click vote and a record is created in the vote table. I am now trying to limit that same person from voting for a post multiple times. class Post has_many :votes end class Vote belongs_to :post end When a vote record is created I am using the VotesController to pass the :post_id and using a hidden field in the view to pass the ip_address (both to the vote table). I am wondering if there is a way to add a validation to the Vote Model that searches to see if a post_id has an ip_address that matches the person requesting to vote. I have tried simply using the validates_uniqueness_of :ip_address but that restricts the user from voting on any post. I just want to restrict the user from voting on a particular post that they have already voted on. Is there a way to do this through validation?

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  • showSettings callback in Flex?

    - by Jim Robert
    I am pretty new to flex, so forgive me if this is an obvious question. Is there a way to open the Security.showSettings (flash.system.Security) with a callback? or at least to detect if it is currently open or not? My flex application is used for streaming audio, and is normally controlled by javascript, so I keep it hidden for normal use (via absolute positioning it off the page). When I need microphone access I need to make the flash settings dialog visible, which works fine, I move it into view and open the dialog. When the user closes it, I need to move it back off the screen so they don't see an empty flex app sitting there after they change their settings. thanks :)

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  • Process touches behind the UINavigationBar

    - by Reed Olsen
    In my application, I'm displaying a fullscreen image in a 320 x 480 frame. After I display the image, I fade the navigation bar out to allow the user to see the whole picture. When the user taps in the area where the navigation bar was, I would like to bring the navigation bar back. This is very similar to what happens in the iPhone Photos app. Unfortunately, after I've hidden the UINavigationBar, I can't process touches on the screen where the navigation bar once was. I believe this is because the origin of the parent view is right below the navigation bar: How can I process touches in this area to bring the nav bar back?

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  • What's the difference between logical SSE intrinsics?

    - by ~buratinas
    Hello, Is there any difference between logical SSE intrinsics for different types? For example if we take OR operation, there are three intrinsics: _mm_or_ps, _mm_or_pd and _mm_or_si128. My questions: Is there any difference between using one or another intrinsic (with appropriate type casting). Won't there be any hidden costs like longer execution in some specific situation? These intrinsics maps to three different x86 instructions (por, orps, orpd). Does anyone have any ideas why Intel is wasting precious opcode space for several instructions which do the same thing?

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  • How to fix slow scrolling when using webkit-transform and relative positioning on the iphone

    - by BeWarned
    I have implemented scrolling of a div by using relative positioning and webkit animation for the iphone, it works beautifully on desktop safari but is choppy on the actual iphone (fine on the simulator). The scrolling works by having a div nested and clipped (overflow:hidden) by its parent. I then set the top position and animate it with -webkit style declarations. The iphone seems to noticeably slow down when there are a lot of items in the inner div. Any ideas how make the scrolling smoother? This was a problem with iScroll code and my own hand coded stuff.

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  • Modal Dialog and Form Elements

    - by James Jeffery
    I have a form that contains some fields and a recaptcha box. I have hidden the recaptcha box. The user clicks "create profile" and a modal dialog pops up with the recaptcha box. All fine. But, how do I submit that information? I am using Javascript to create the recaptcha HTML in the modal. I have a button called "Create Profile" that has this code attatched to the onclick: $("#form").submit() The form data gets submitted to the create.php page, but the recaptcha info does not. Do I have to manually pass this information via the post request to create.php? Without the modal dialog it works fine. I can't understand what's going on. Any ideas?

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  • How to create a backpropagation neural network in neurondonet?

    - by Suraj Prakash
    I am doing stock market prediction using ANNs in c#.net. I am using NeuronDotNet for the neural part. I have to give eight inputs to the network, with a hidden layer consisting 8 nodes and a single node output layer. Can anybody please give me some coding ideas for this???? This project was not a AI course assignment, but my major project. I have studied about the stocks and found various factors that affected the future value of stock of a company. Now I have to use these factors as input to the neural network. I am not getting into how to implement these factors in the neural network. I have just decided to use those eight factors as eight nodes in the input layer but things are going complex. My concern is to use these factors as input and train the neural network for output as next day's stock value. What major things should I have to care about??

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  • How do I change the on-screen keyboard for a PasswordBox

    - by McKay
    I have a box that I want to take a password of only numbers (like an ATM-card PIN), how is the best way to do that? Requirements: Password (with the hidden numbers) Typing digits as the default (only?) keyboard What I've tried: I thought that InputScopes would be the way to go, but I can't set the input scope on a password box. I even tried putting the password InputScope on a normal TextBox, but that didn't mask the appearance of the characters in the text box. Suggestions?

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  • UIWebView finishes too fast

    - by Dan Ray
    I'm loading a biggish (and javascript-heavy) page into a UIWebView, and I want to add a UIActivityView to spin while it thinks. Problem is, my - (void)webViewDidFinishLoad:(UIWebView *)webView method gets called quite a while before the rendering actually happens. Enough so that my spinner (which set to hide when stopped) never actually shows up. By the time the UI is even assembled, the spinner has already been stopped and hidden, even though there's enough time to wonder if it's broken before the UIWebView actually gets the goods to the screen. I wish there was a "webViewDidFinishRendering", but that would imply that WebKit is something other than lickedy-split fast... ;-) Thoughts? Perhaps I should toss the thing up and set a timer to come stop it, and unhook that from anything that's actually happening in the WebView?

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  • add on click event to picturebox vb.net

    - by Matt Facer
    I have a flowLayoutPanel which I am programatically adding new panelLayouts to. Each panelLayout has a pictureBox within it. It's all working nicely, but I need to detect when that picture box is clicked on. How do I add an event to the picture? I seem to only be able to find c# examples.... my code to add the image is as follows... ' add pic to the little panel container Dim pic As New PictureBox() pic.Size = New Size(cover_width, cover_height) pic.Location = New Point(10, 0) pic.Image = Image.FromFile("c:/test.jpg") panel.Controls.Add(pic) 'add pic and other labels (hidden in this example) to the big panel flow albumFlow.Controls.Add(panel) So I assume somewhere when I'm creating the image I add an onclick event. I need to get the index for it also if that is possible! Thanks for any help!

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  • paypal redirect on successful checkout

    - by Graeme Leighfield
    I am trying to get my Paypal subscription to redirect to a custom page after a successful checkout. Before submitting to Paypal I overload the submit handler, run my own function (to store details) and return a unique id. I want to attach that id to my return URL. (as a GET or POST var so to speak) I have turned auto redirect "on" in my Paypal sandbox sellers preferences, but it only seems to re-direct to the URL that I HAVE to put in there. using the <input type="hidden" name="return" value="someurl" /> does no seem to work. I want it this way so that I can capture the user information when entered with a "non-paid" flag, then via the IPN I can update that record with a "PAID" flag, and I want to use the unique ID to tie it all together so to speak. Any advice or a different approach is welcomed. Many thanks!

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  • What is the proper PHP syntax to post a file that exists in a directory that's on the server?

    - by ggg
    This is a basic post form in PHP that loads from the client PC. What is the proper syntax to load from a directory on the server? <form enctype="multipart/form-data" action="index.php?option=com_productionparse" method="POST"> <input type="hidden" name="MAX_FILE_SIZE" value="90000000000" /><br /> Choose a file to upload: <input name="file" size=120 type="file" /><br /> <input type="submit" value="Upload File" /> </form>

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  • Dynamic Forms and AntiForgeryToken MVC

    - by oliver
    Hi ALL, I want to create dynamic forms on a MVC page that will generate something like this. onclick="var f = document.createElement('form'); f.style.display = 'none'; this.parentNode.appendChild(f); f.method = 'POST'; f.action = this.href;var s = document.createElement('input'); s.setAttribute('type', 'hidden'); s.setAttribute('name', 'authenticity_token'); s.setAttribute('value', '6I6td2wJRI9Nu5Au/F3EfOQhxJbEMXabuVXM0nXonkY='); f.appendChild(s);f.submit();return false;" I am just not sure how I can implement the AntiForgeryToken on something like above?!? any helpwould be appreciated

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  • Any Java library for address extraction from emails?

    - by Hans Klock
    I'm looking for an Java open-source library which is able to extract address information from a (German) email (signature). The library should find name street city, city code/postal code email tel/fax address-parser.com is an commercial product, but a free (albeit simple) library would be great. stackoverflow.com/questions/16413/parse-usable-street-address-city-state-zip-from-a-string is asking for something similar, but my problem is broader because the address information is hidden in a complete email. And there isn't a solution either... Any ideas?

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  • RichFaces rich:clientId within facelets

    - by Matthias Hryniszak
    Hi there, I'm trying to something like this: <?xml version="1.0"/> <ui:composition ....> <h:inputText id="#{id}InputText" value="#{value}"/> <rich:calendar id="#{id}Shevron" popup="true" datePattern="ddMMyy" showInput="false" todayControlMode="hidden" enableManualInput="false" showApplyButton="false" updateDays="14" ondateselected="alert('#{rich:clientId('#{id}Shevron')}');" inputClass="xwingml-input"/> </ui:composition> The problem I'm facing here is that the actual client id is generated for my facelts components. Is there a way to pass an id to rich:clientId like this? If not how would one go about this kind of problem? Thanks in advance!.

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  • PyQt4 Move QTableWidget row with widgets

    - by Guard
    I have the following method in my PyQt4 app. r2 is the number of row to move, and r1 is the position where it should be moved. To clarify: the table is filled with cellWidgets, not widgetItems. def move_row(self, r1, r2): tt = self.tableWidget tt.insertRow(r1) for c in range(tt.columnCount()): tt.setCellWidget(r1, c, tt.cellWidget(r2 + 1, c)) tt.removeRow(r2 + 1) # <--- ??? If I comment out the last line, it behaves as expected: the new row is inserted at position r1, it is filled with widgets from r2 (now it's r2+1), and the r2+1 row is empty. If I even hide this row, it behaves well, though it is not what I want (I have the rows numbered, and I don't want this hidden row to occupy the number). But if I remove the row, the widgets initially owned by it disappear. Looks like their ownership is taken on first placement, and is not changed after the move. Any ideas?

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  • CryptographicException: Padding is invalid and cannot be removed and Validation of viewstate MAC fai

    - by Chris Marisic
    Monitoring my global exception logs this error seems to be impossible to remove no matter what I do, I thought I finally got rid of it but it's back again. You can see a strack trace of the error on a similar post here. Notes about the environment: IIS 6.0, .NET 3.5 SP1 single server ASP.NET application Steps already taken: <system.web> <machineKey validationKey="big encryption key" decryptionKey="big decryption key" validation="SHA1" decryption="AES" /> In my Page Base for all of my pages protected override void OnInit(EventArgs e) { const string viewStateKey = "big key value"; Page.ViewStateUserKey = viewStateKey; } Also in the source of the page I can see that all of the ASP.NET generated hidden fields are correctly at the top of the page.

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  • Why does my NSWindow only receive mouseOver events the first time?

    - by DanieL
    I have an application where a borderless window is shown and hidden, using orderOut and orderFront. When it is visible, I want the it to become the key window when the mouse moves over it. So far I've done this: In awakeFromNib I have set its first responder to itself. In the window's constructor I set accepts mouse events to YES. In the mouseMoved method, I use makeKeyAndOrderToFront. My problem is, that this only works the first time I move the mouse over the window. After that, it doesn't receive any mouseOver events. I've tried checking the firstResponder but as far as I can tell it never changes from the window. Any ideas what I can do to get this working?

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  • Best way to hide a window from the Alt-Tab program switcher?

    - by chaiguy1337
    I've been a .NET developer for several years now and this is still one of those things I don't know how to do properly. It's easy to hide a window from the taskbar via a property in both Windows Forms and WPF, but as far as I can tell, this doesn't guarantee (or necessarily even affect) it being hidden from the Alt-Tab dialog. I've seen invisible windows show up in Alt-Tab, and I'm just wondering what is the best way to guarantee a window will never appear (visible or not) in the Alt-Tab dialog. Update: Please see my posted solution below. I'm not allowed to mark my own answers as the solution, but so far it's the only one that works. Update 2: There's now a proper solution by Franci Penov that looks pretty good, but haven't tried it out myself. Involves some Win32, but avoids the lame creation of off-screen windows.

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  • Ruby erb template- try to change layout- get error

    - by nigel curruthers
    Hi there! I'm working my way through adapting a template I have been given that is basically a list of products for sale. I want to change it from a top-down list into a table layout. I want to end up with something as follows- <div id= 'ladiesproducts'> <% ladies_products = hosting_products.find_all do |product| product.name.match("ladies") end %> <table><tbody> <% [ladies_products].each do | slice | %> <tr> <% slice.each do | product | %> <td> <h4><%= product.name.html %></h4> <p><%= product.description %></p> <% other parts go here %> </td> <% end %> </tr> <% end %> </tbody></table> </div> This works fine for the layout that I am trying to achieve. The problem I have is when I paste back the <% other parts go here % part of the code. I get an internal error message on the page. I am completely new to Ruby so am just bumbling my way through this really. I have a hunch that I'm neglecting something that is probably very simple. The <% other parts go here %> code is as follows: <input type='hidden' name='base_renewal_period-<%= i %>' value="<%= product.base_renewal_period %>" /> <input type='hidden' name='quoted_unit_price-<%= i %>' value="<%= billing.price(product.unit_price) %>" /> <p><input type='radio' name='add-product' value='<%= product.specific_type.html %>:<%= i %>:base_renewal_period,quoted_unit_price,domain' /><%= billing.currency_symbol.html %><%= billing.price(product.unit_price, :use_tax_prefs) %> <% if product.base_renewal_period != 'never' %> every <%= product.unit_period.to_s_short.html %> <% end %> <% if product.setup_fee != 0 %> plus a one off fee of <%= billing.currency_symbol.html %><%= sprintf("%.2f", if billing.include_tax? then billing.price(product.setup_fee) else product.setup_fee end) %> <% end %> <% if product.has_free_products? %> <br /> includes free domains <% product.free_products_list.each do | free_product | %> <%= free_product["free_name"] %> <% end %> <% end %> * </p> <% i = i + 1 %> <% end %> <p><input type='submit' value='Add to Basket'/></p> </form> <% unless basket.nil? or basket.empty? or no_upsell? %> <p><a href='basket?add-no-product=package'>No thank you, please continue with my order ...</a></p> <% end %> <% if not billing.tax_applies? %> <% elsif billing.include_tax? %> <p>* Includes <%= billing.tax_name %></p> <% else %> <p>* Excluding <%= billing.tax_name %></p> <% end %> If anyone can point out what I'm doing wrong or what I'm missing or failing to change I would GREATLY appreciate it! Many thanks in advance. Nigel

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  • css border problem

    - by Chris
    For some reason I have a very ugly orange part of a border around a image. Can anyone see why this is? This is the HTML <div class="preview"> <a href="images/foto/full/280899624_6_5_j6.jpeg" title="Sportschool Raymond Snel" rel="lightbox"><img src="images/foto/full/280899624_6_5_j6.jpeg" alt="text" /></a> </div> This is the css .preview { width: 85px; height: 85px; overflow: hidden; border: 3px solid #2e2a26; } The color code = FF6a00 but appears only one time in the css file. a { color: #ff6a00; text-decoration: none; border: 0px; } As you can see I already gave it a 0px, but for some reason the border is still there.

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  • How can I pass data from an aspx page to an ascx modal popup?

    - by Erick B
    I'm fairly new to ASP.NET and trying to learn how things are done. I come from a C# background so the code-behind portion is easy, but thinking like a web developer is unfamiliar. I have an aspx page that contains a grid of checkboxes. I have a button that is coded via a Button_Click event to collect a list of which rows are checked and create a session variable out of that list. The same button is referenced (via TargetControlID) by my ascx page's ModalPopupExtender which controls the panel on the ascx page. When the button is clicked, the modal popup opens but the Button_Click event is never fired, so the modal doesn't get its session data. Since the two pages are separate, I can't call the ModalPopupExtender from the aspx.cs code, I can't reach the list of checkboxes from the ascx.cs code, and I don't see a way to populate my session variable and then programmatically activate some other hidden button or control which will then open my modal popup. Any thoughts?

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  • How to debug .net error where message is masked in Ajax call

    - by Matt Thrower
    Hi, I'm currently working on a page which makes use of the MS Ajax UpdatePanel. However I've run into a strange problem. If I simply compile and view my page, one of the button click events results in an error. However, because the button affects items inside an UpdatePanel the actual exception is hidden from me: all I'm getting is a HTTP 500 error returned to me through the UpdatePanel Javascript. What's odd about this is that if I step through the code line by line in Visual Studio, I don't get the error. The button doesn't cause the behaviour I'm expecting, but it throws no errors. Because the step through isn't causing an error to be thrown, I'm at a loss how I can get to the actual exception message so I can find out where the error is being thrown and debug it. Suggestions gratefully received. Cheers, Matt

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  • Jquery (or CSS) autoresize iframe to the bottom?

    - by mathiregister
    Hi guys, i've no idea how i can set properties for an iframe that's positioned 300px from the top, but should reach ALWAYS the bottom! So at the moment i've set the height of the iframe to 500px. The height should dynamically change when i resize the browserwindow. The iframe should start 300px from the top and should always reach the bottom. I'm not much of an css expert. Any idea what i have to do? #frame { overflow:hidden; border:none; width:100%; height:500px; margin-top:300px; }

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  • Watin; Get element by id not working

    - by Afnan
    I am trying to place data into text area that is inside hiden input but watin dose not find it.why? but when i search for inputs my program shows this. var ie = new WatiN.Core.IE("http://facebook.com", true); ie.ClearCookies(); ie.TextField(WatiN.Core.Find.ById("email")).TypeText(textBoxUsername.Text); ie.TextField(WatiN.Core.Find.ById("pass")).TypeText(textBoxPassword.Text); ie.Button(WatiN.Core.Find.ByValue("Login")).Click(); ie.Link(WatiN.Core.Find.ByText("Status")).Click(); ie.TextField(WatiN.Core.Find.ById("u362110_11")).TypeText(textBoxPassword.Text); Exception Could not find INPUT (hidden) or INPUT (password) or INPUT (text) or INPUT (textarea) or TEXTAREA element tag matching criteria: Attribute 'id' equals 'u493403_13' at http://www.facebook.com/home.php

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