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  • Rails accepts_nested_attributes_for and build_attribute with polymorphic relationships

    - by SooDesuNe
    The core of this question is where build_attribute is required in a model with nested attribuites I'm working with a few models that are setup like: class Person < ActiveRecord::Base has_one :contact accepts_nested_attributes_for :contact, :allow_destroy=> true end class Contact < ActiveRecord::Base belongs_to :person has_one :address, :as=>:addressable accepts_nested_attributes_for :address, :allow_destroy=> true end class Address < ActiveRecord::Base belongs_to :addressable, :polymorphic=>true end I have to define the new method of people_controller like: def new @person = Person.new @person.build_contact @person.contact.build_address #!not very good encapsulation respond_to do |format| format.html # new.html.erb format.xml { render :xml => @person } end end Without @person.contact.build_address the address relationship on contact is NIL. I don't like having to build_address in people_controller. That should be handled by Contact. Where do I define this in Contact since the contacts_controller is not involved here?

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  • trying to build Boost MPI, but the lib files are not created. What's going on?

    - by unknownthreat
    I am trying to run a program with Boost MPI, but the thing is I don't have the .lib. So I try to create one by following the instruction at http://www.boost.org/doc/libs/1_43_0/doc/html/mpi/getting_started.html#mpi.config The instruction says "For many users using LAM/MPI, MPICH, or OpenMPI, configuration is almost automatic", I got myself OpenMPI in C:\, but I didn't do anything more with it. Do we need to do anything with it? Beside that, another statement from the instruction: "If you don't already have a file user-config.jam in your home directory, copy tools/build/v2/user-config.jam there." Well, I simply do what it says. I got myself "user-config.jam" in C:\boost_1_43_0 along with "using mpi ;" into the file. Next, this is what I've done: bjam --with-mpi C:\boost_1_43_0>bjam --with-mpi WARNING: No python installation configured and autoconfiguration failed. See http://www.boost.org/libs/python/doc/building.html for configuration instructions or pass --without-python to suppress this message and silently skip all Boost.Python targets Building the Boost C++ Libraries. warning: skipping optional Message Passing Interface (MPI) library. note: to enable MPI support, add "using mpi ;" to user-config.jam. note: to suppress this message, pass "--without-mpi" to bjam. note: otherwise, you can safely ignore this message. warning: Unable to construct ./stage-unversioned warning: Unable to construct ./stage-unversioned Component configuration: - date_time : not building - filesystem : not building - graph : not building - graph_parallel : not building - iostreams : not building - math : not building - mpi : building - program_options : not building - python : not building - random : not building - regex : not building - serialization : not building - signals : not building - system : not building - test : not building - thread : not building - wave : not building ...found 1 target... The Boost C++ Libraries were successfully built! The following directory should be added to compiler include paths: C:\boost_1_43_0 The following directory should be added to linker library paths: C:\boost_1_43_0\stage\lib C:\boost_1_43_0> I see that there are many libs in C:\boost_1_43_0\stage\lib, but I see no trace of libboost_mpi-vc100-mt-1_43.lib or libboost_mpi-vc100-mt-gd-1_43.lib at all. These are the libraries required for linking in mpi applications. What could possibly gone wrong when libraries are not being built?

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  • Facebook Connect 'next' error

    - by Mark
    I am trying to experiment with the new facebook authentication system, and I can't getthe login to work. I'm getting the following error message: API Error Code: 100 API Error Description: Invalid parameter Error Message: next is not owned by the application. The url that is being sent to facebook is: http://www.facebook.com/connect/uiserver.php?app_id=444444444444444&next=http%3A%2F%2Fstatic.ak.fbcdn.net%2Fconnect%2Fxd_proxy.php%23%3F%3D%26cb%3Df357eceb0361a8a%26origin%3Dhttp%253A%252F%252Fwww.mysite.com%252Ff38fea4f9ea573%26relation%3Dopener%26transport%3Dpostmessage%26frame%3Df23b800f8a78%26result%3DxxRESULTTOKENxx&display=popup&channel=http%3A%2F%2Fwww.mysite.com%2Ffbtester.php&cancel=http%3A%2F%2Fstatic.ak.fbcdn.net%2Fconnect%2Fxd_proxy.php%23%3F%3D%26cb%3Df6095a98598be8%26origin%3Dhttp%253A%252F%252Fwww.mysite.com%252Ff38fea4f9ea573%26relation%3Dopener%26transport%3Dpostmessage%26frame%3Df23b800f8a78%26result%3DxxRESULTTOKENxx&locale=en_US&return_session=1&session_version=3&fbconnect=1&canvas=0&legacy_return=1&method=permissions.request Note that the 'Next' variable in the url is: next=http%3A%2F%2Fstatic.ak.fbcdn.net%2Fconnect%2Fxd_proxy.php%23%3F%3D%26cb%3Df357eceb0361a8a%26origin%3Dhttp%253A%252F%252Fwww.mysite.com%252Ff38fea4f9ea573%26relation%3Dopener%26transport%3Dpostmessage%26frame%3Df23b800f8a78%26result%3DxxRESULTTOKENxx Any ideas what could be going wrong? All I've done is copy and paste the facebook login demo code from facebook's website: <?php define('FACEBOOK_APP_ID', 'your application id'); define('FACEBOOK_SECRET', 'your application secret'); function get_facebook_cookie($app_id, $application_secret) { $args = array(); parse_str(trim($_COOKIE['fbs_' . $app_id], '\\"'), $args); ksort($args); $payload = ''; foreach ($args as $key => $value) { if ($key != 'sig') { $payload .= $key . '=' . $value; } } if (md5($payload . $application_secret) != $args['sig']) { return null; } return $args; } $cookie = get_facebook_cookie(FACEBOOK_APP_ID, FACEBOOK_SECRET); ?> <!DOCTYPE html> <html xmlns="http://www.w3.org/1999/xhtml" xmlns:fb="http://www.facebook.com/2008/fbml"> <body> <?php if ($cookie) { ?> Your user ID is <?= $cookie['uid'] ?> <?php } else { ?> <fb:login-button></fb:login-button> <?php } ?> <div id="fb-root"></div> <script src="http://connect.facebook.net/en_US/all.js"></script> <script> FB.init({appId: '<?= FACEBOOK_APP_ID ?>', status: true, cookie: true, xfbml: true}); FB.Event.subscribe('auth.login', function(response) { window.location.reload(); }); </script> </body> </html> Thanks for the help!

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  • Best reverse proxy for IIS 6?

    - by Chris
    I want to set up a reverse proxy from one of our intranet IIS sites to point to another tomcat server. Eg, i want the user to browse to 'http://our-iis-server/friendly-url' and for it to reverse proxy to 'http://our-tomcat-server/ugly-url'. What would be the best solution for this? I've narrowed it down to three options: http://www.managedfusion.com/products/url-rewriter/documentation.aspx http://www.isapirewrite.com/ http://www.codeplex.com/IIRF Also, can these tools rewrite the links in the html? Eg, if the tomcat server's html has something like 'a href = http://our-tomcat-server/ugly-url/product/widget' i would need it to change to 'a href = http://our-iis-server/friendly-url/product/widget' Thanks in advance. All good answers will be voted for!!!

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  • My simple PHP is outputting wrong things.

    - by Sergio Tapia
    EDIT: I forgot to add semi colons. Now there is another problems. I'm getting a error: Parse error: syntax error, unexpected T_STRING in C:\xampp\htdocs\useraccess.php on line 12 It outputs: 0){ echo 'si'; } ?> When it should only output 'si' in the body. Here's the code: <html> <head> </head> <body> <? $user = mysql_real_escape_string($_GET["u"]) $pass = mysql_real_escape_string($_GET["p"]) $query = "SELECT * FROM usario WHERE username = '$user' AND password = '$pass'" mysql_connect(localhost, "sergio", "123"); @mysql_select_db("multas") or die( "Unable to select database"); $result=mysql_query($query); if(mysql_numrows($result) > 0){ echo 'si'; } ?> </body> </html>

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  • Why does this jquery slideToggle code not work?

    - by cbmeeks
    I am trying to alter the button text for a expand/collapse button. Basically, a user clicks "Collapse" and I perform a slideToggle and when the slideToggle is done, I change the button text to "Expand" and vice-versa. The following code works great however if you click the expand/collapse button rapidly, it looses its mind and shows "Expand" when it's already expanded or "Collapse" when it's already collapsed. Any tips are appreciated. Thanks! function toggleBox( button, box ){ if($(box).is(":hidden")) { $(box).slideToggle("slow", function(){ $(button).html("Collapse"); }); } else { $(box).slideToggle("slow", function(){ $(button).html("Expand"); }); } }

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  • Bug in MvcFutures LinkBuilder.BuildUrlFromExpression

    - by rboarman
    I hope this is the right place to post this. The following code fails in the latest build of the MVC futures library. This works and correctly calls my controller: Html.ActionLink<CreatePlayerController>(x => x.PlayerDetails(), "Click") This fails: LinkBuilder.BuildUrlFromExpression<CreatePlayerController>(null, Html.RouteCollection, x => x.PlayerDetails() ) The error is: System.InvalidOperationException: The IControllerFactory 'SF.Client.Website.StructureMapControllerFactory' did not return a controller for the name 'CreatePlayer'. My StructureMapControllerFactory. GetControllerInstance method is never called. Do I need to register my controller factory in some other way? It seems like the MvcFutures code is ignoring it. ControllerBuilder.Current.SetControllerFactory(new StructureMapControllerFactory()); Thank you, Rick

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  • Are Cross Domain Flash Shared Objects (LSO aka Flash Cookie) possible

    - by user85155
    Hi, I found several solutions for creating Flash LSOs from JavaScript (for example: http://www.nuff-respec.com/technology/cross-browser-cookies-with-flash ) If Page (www.hostA.com/index.html) and the .swf file are from the same site, everything works fine. No I'm trying to load the page form www.hostA.com/index.html, which includes www.hostB.com/flashcookie.swf (different sites). But then I cannot read or store the LSO. I have tried several configurations (crossdomain.xml, Security.allowDomain("...") ), but nothing works. Is this kind of cross domain access to a LSO possible? Thanks -stephan

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  • Microsoft&rsquo;s new technical computing initiative

    - by Randy Walker
    I made a mental note from earlier in the year.  Microsoft literally buys computers by the truckload.  From what I understand, it’s a typical practice amongst large software vendors.  You plug a few wires in, you test it, and you instantly have mega tera tera flops (don’t hold me to that number).  Microsoft has been trying to plug away at their cloud services (named Azure).  Which, for the layman, means Microsoft runs your software on their computers, and as demand increases you can allocate more computing power on the fly. With this in mind, it doesn’t surprise me that I was recently sent an executive email concerning Microsoft’s new technical computing initiative.  I find it to be a great marketing idea with actual substance behind their real work.  From the programmer academic perspective, in college we dreamed about this type of processing power.  This has decades of computer science theory behind it. A copy of the email received.  (note that I almost deleted this email, thinking it was spam due to it’s length) We don't often think about how complex life really is. Take the relatively simple task of commuting to and from work: it is, in fact, a complicated interplay of variables such as weather, train delays, accidents, traffic patterns, road construction, etc. You can however, take steps to shorten your commute - using a good, predictive understanding of a few of these variables. In fact, you probably are already taking these inputs and instinctively building a predictive model that you act on daily to get to your destination more quickly. Now, when we apply the same method to very complex tasks, this modeling approach becomes much more challenging. Recent world events clearly demonstrated our inability to process vast amounts of information and variables that would have helped to more accurately predict the behavior of global financial markets or the occurrence and impact of a volcano eruption in Iceland. To make sense of issues like these, researchers, engineers and analysts create computer models of the almost infinite number of possible interactions in complex systems. But, they need increasingly more sophisticated computer models to better understand how the world behaves and to make fact-based predictions about the future. And, to do this, it requires a tremendous amount of computing power to process and examine the massive data deluge from cameras, digital sensors and precision instruments of all kinds. This is the key to creating more accurate and realistic models that expose the hidden meaning of data, which gives us the kind of insight we need to solve a myriad of challenges. We have made great strides in our ability to build these kinds of computer models, and yet they are still too difficult, expensive and time consuming to manage. Today, even the most complicated data-rich simulations cannot fully capture all of the intricacies and dependencies of the systems they are trying to model. That is why, across the scientific and engineering world, it is so hard to say with any certainty when or where the next volcano will erupt and what flight patterns it might affect, or to more accurately predict something like a global flu pandemic. So far, we just cannot collect, correlate and compute enough data to create an accurate forecast of the real world. But this is about to change. Innovations in technology are transforming our ability to measure, monitor and model how the world behaves. The implication for scientific research is profound, and it will transform the way we tackle global challenges like health care and climate change. It will also have a huge impact on engineering and business, delivering breakthroughs that could lead to the creation of new products, new businesses and even new industries. Because you are a subscriber to executive e-mails from Microsoft, I want you to be the first to know about a new effort focused specifically on empowering millions of the world's smartest problem solvers. Today, I am happy to introduce Microsoft's Technical Computing initiative. Our goal is to unleash the power of pervasive, accurate, real-time modeling to help people and organizations achieve their objectives and realize their potential. We are bringing together some of the brightest minds in the technical computing community across industry, academia and science at www.modelingtheworld.com to discuss trends, challenges and shared opportunities. New advances provide the foundation for tools and applications that will make technical computing more affordable and accessible where mathematical and computational principles are applied to solve practical problems. One day soon, complicated tasks like building a sophisticated computer model that would typically take a team of advanced software programmers months to build and days to run, will be accomplished in a single afternoon by a scientist, engineer or analyst working at the PC on their desktop. And as technology continues to advance, these models will become more complete and accurate in the way they represent the world. This will speed our ability to test new ideas, improve processes and advance our understanding of systems. Our technical computing initiative reflects the best of Microsoft's heritage. Ever since Bill Gates articulated the then far-fetched vision of "a computer on every desktop" in the early 1980's, Microsoft has been at the forefront of expanding the power and reach of computing to benefit the world. As someone who worked closely with Bill for many years at Microsoft, I am happy to share with you that the passion behind that vision is fully alive at Microsoft and is carried out in the creation of our new Technical Computing group. Enabling more people to make better predictions We have seen the impact of making greater computing power more available firsthand through our investments in high performance computing (HPC) over the past five years. Scientists, engineers and analysts in organizations of all sizes and sectors are finding that using distributed computational power creates societal impact, fuels scientific breakthroughs and delivers competitive advantages. For example, we have seen remarkable results from some of our current customers: Malaria strikes 300,000 to 500,000 people around the world each year. To help in the effort to eradicate malaria worldwide, scientists at Intellectual Ventures use software that simulates how the disease spreads and would respond to prevention and control methods, such as vaccines and the use of bed nets. Technical computing allows researchers to model more detailed parameters for more accurate results and receive those results in less than an hour, rather than waiting a full day. Aerospace engineering firm, a.i. solutions, Inc., needed a more powerful computing platform to keep up with the increasingly complex computational needs of its customers: NASA, the Department of Defense and other government agencies planning space flights. To meet that need, it adopted technical computing. Now, a.i. solutions can produce detailed predictions and analysis of the flight dynamics of a given spacecraft, from optimal launch times and orbit determination to attitude control and navigation, up to eight times faster. This enables them to avoid mistakes in any areas that can cause a space mission to fail and potentially result in the loss of life and millions of dollars. Western & Southern Financial Group faced the challenge of running ever larger and more complex actuarial models as its number of policyholders and products grew and regulatory requirements changed. The company chose an actuarial solution that runs on technical computing technology. The solution is easy for the company's IT staff to manage and adjust to meet business needs. The new solution helps the company reduce modeling time by up to 99 percent - letting the team fine-tune its models for more accurate product pricing and financial projections. Our Technical Computing direction Collaborating closely with partners across industry and academia, we must now extend the reach of technical computing even further to help predictive modelers and data explorers make faster, more accurate predictions. As we build the Technical Computing initiative, we will invest in three core areas: Technical computing to the cloud: Microsoft will play a leading role in bringing technical computing power to scientists, engineers and analysts through the cloud. Existing high- performance computing users will benefit from the ability to augment their on-premises systems with cloud resources that enable 'just-in-time' processing. This platform will help ensure processing resources are available whenever they are needed-reliably, consistently and quickly. Simplify parallel development: Today, computers are shipping with more processing power than ever, including multiple cores, but most modern software only uses a small amount of the available processing power. Parallel programs are extremely difficult to write, test and trouble shoot. However, a consistent model for parallel programming can help more developers unlock the tremendous power in today's modern computers and enable a new generation of technical computing. We are delivering new tools to automate and simplify writing software through parallel processing from the desktop... to the cluster... to the cloud. Develop powerful new technical computing tools and applications: We know scientists, engineers and analysts are pushing common tools (i.e., spreadsheets and databases) to the limits with complex, data-intensive models. They need easy access to more computing power and simplified tools to increase the speed of their work. We are building a platform to do this. Our development efforts will yield new, easy-to-use tools and applications that automate data acquisition, modeling, simulation, visualization, workflow and collaboration. This will allow them to spend more time on their work and less time wrestling with complicated technology. Thinking bigger There is so much left to be discovered and so many questions yet to be answered in the fascinating world around us. We believe the technical computing community will show us that we have not seen anything yet. Imagine just some of the breakthroughs this community could make possible: Better predictions to help improve the understanding of pandemics, contagion and global health trends. Climate change models that predict environmental, economic and human impact, accessible in real-time during key discussions and debates. More accurate prediction of natural disasters and their impact to develop more effective emergency response plans. With an ambitious charter in hand, this new team is ready to build on our progress to-date and execute Microsoft's technical computing vision over the months and years ahead. We will steadily invest in the right technologies, tools and talent, and work to bring together the technical computing community. I invite you to visit www.modelingtheworld.com today. We welcome your ideas and feedback. I look forward to making this journey with you and others who want to answer the world's biggest questions, discover solutions to problems that seem impossible and uncover a host of new opportunities to change the world we live in for the better. Bob

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  • Designing Database

    - by user548192
    Hello All, I need to design database with frontend as HTML. This is my first attempt to do this. What I need is, - User can input a word from HTML page, click submit I will query the word to get a URL from database and user sees that webpage(pointed by URL). Just enter word, submit and get the webpage displayed. People suggested using JSP/Access. I am new to everything. Can you please point out what exactly I need to do? Thanks a ton.

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  • Problem to display a pdf from my JSF Portlet of Liferay

    - by Stefano
    I use liferay 5.2 with jsf-portlet. From the page I want to press a button to generate one PDF. In managedbean i build pdf and I want to show it in response. In a ByteArrayOutputStream named outputStream i have my pdf built with JasperReport. I write: PortletResponse portletResponse = (PortletResponse)externalCtx.getResponse(); HttpServletResponse httpResponse = PortalUtil.getHttpServletResponse(portletResponse); ServletOutputStream out = httpResponse.getOutputStream(); String filename="Pdf" + System.currentTimeMillis()+".pdf"; httpResponse.reset(); httpResponse.setContentType("application/pdf"); httpResponse.setHeader("Content-Disposition", "attachment; filename=\""+ filename + "\""); httpResponse.setContentLength(outputStream.size()); outputStream.writeTo(out); out.flush(); out.close(); I do not see anything output! In jboss log i read: IllegaStateException.... What is wrong? LOG 11:03:19,716 INFO [STDOUT] 11:03:19,716 ERROR [IncludeTag] Current URL /web/organo-di-governo/datawarehouse?p_p_id=1_WAR_Portlet_Datawarehouse_INSTANCE_D7s7&p_p_lifecycle=1&p_p_state=normal&p_p_mode=view&p_p_col_id=column-2&p_p_col_count=1&_1_WAR_Portlet_Datawarehouse_INSTANCE_D7s7_com.sun.faces.portlet.VIEW_ID=%2Fview.xhtml&_1_WAR_Portlet_Datawarehouse_INSTANCE_D7s7_com.sun.faces.portlet.NAME_SPACE=_1_WAR_Portlet_Datawarehouse_INSTANCE_D7s7_ generates exception: null 11:03:19,717 INFO [STDOUT] 11:03:19,717 ERROR [IncludeTag] java.lang.IllegalStateException at com.liferay.portal.servlet.filters.strip.StripResponse.getWriter(StripResponse.java:85) at org.apache.jasper.runtime.JspWriterImpl.initOut(JspWriterImpl.java:125) at org.apache.jasper.runtime.JspWriterImpl.flushBuffer(JspWriterImpl.java:118) at org.apache.jasper.runtime.JspWriterImpl.write(JspWriterImpl.java:326) at org.apache.jasper.runtime.JspWriterImpl.write(JspWriterImpl.java:342) at org.apache.jasper.runtime.JspWriterImpl.print(JspWriterImpl.java:468) at com.liferay.taglib.util.ThemeUtil.includeVM(ThemeUtil.java:208) at com.liferay.taglib.util.ThemeUtil.include(ThemeUtil.java:68) at com.liferay.taglib.util.IncludeTag.doEndTag(IncludeTag.java:59) at org.apache.jsp.html.common.themes.portal_jsp._jspx_meth_liferay_002dtheme_005finclude_005f1(portal_jsp.java:816) at org.apache.jsp.html.common.themes.portal_jsp._jspx_meth_c_005fotherwise_005f0(portal_jsp.java:788) at org.apache.jsp.html.common.themes.portal_jsp._jspService(portal_jsp.java:724) at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70) at javax.servlet.http.HttpServlet.service(HttpServlet.java:803) at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:373) at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:336) at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:265) at javax.servlet.http.HttpServlet.service(HttpServlet.java:803) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) 11:03:19,718 ERROR [[jsp]] Servlet.service() for servlet jsp threw exception java.lang.IllegalStateException 11:03:19,719 ERROR [[Main Servlet]] Servlet.service() for servlet Main Servlet threw exception java.lang.IllegalStateException at com.liferay.portal.servlet.filters.strip.StripResponse.getWriter(StripResponse.java:85) at org.apache.jasper.runtime.JspWriterImpl.initOut(JspWriterImpl.java:125) at org.apache.jasper.runtime.JspWriterImpl.flushBuffer(JspWriterImpl.java:118) 11:03:19,722 INFO [STDOUT] 11:03:19,720 ERROR [OpenSSOFilter] org.apache.jasper.JasperException: java.lang.IllegalStateException org.apache.jasper.JasperException: java.lang.IllegalStateException at org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:521) at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:409) at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:336) at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:265) 11:03:19,722 INFO [STDOUT] n.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96) Caused by: java.lang.IllegalStateException at com.liferay.portal.servlet.filters.strip.StripResponse.getWriter(StripResponse.java:85) at org.apache.jasper.runtime.JspWriterImpl.initOut(JspWriterImpl.java:125) at org.apache.jasper.runtime.JspWriterImpl.flushBuffer(JspWriterImpl.java:118)

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  • Enable real fixed positioning on Samsung Android browsers

    - by Mr. Shiny and New ??
    The Android browser, since 2.2, supports fixed positioning, at least under certain circumstances such as when scaling is turned off. I have a simple HTML file with no JS, but the fixed positioning on three Samsung phones I've tried is simply wrong. Instead of true fixed positioning, the header scrolls out of view then pops back into place after the scrolling is done. This doesn't happen on the Android SDK emulator for any configuration I've tested (2.2, 2.3, 2.3 x86, 4.0.4). It also doesn't happen when using the WebView in an app on the Samsung phones: in those cases the positioning works as expected. Is there a way to make the Samsung Android "stock" browser use real fixed positioning? I've tested: 1. Samsung Galaxy 551, Android 2.2 2. Samsung Galaxy S, Android 2.3 3. Samsung Galaxy S II, Android 2.3 Sample code: <html> <head> <meta name="viewport" content="initial-scale=1.0,maximum-scale=1.0,user-scalable=no,width=device-width,height=device-height"> <style> h1 { position: fixed; top: 0; left: 0; height: 32px; background-color: #CDCDCD; color: black; font-size: 32px; line-height: 32px; padding: 2px; width: 100%; margin: 0;} p { margin-top: 36px; } </style> </head> <body> <h1>Header</h1> <p>Long text goes here</p> </body> </html> The expected behaviour is that the grey header fills the top of the screen and stays put no matter how much you scroll. On Samsung Android browsers it seems to scroll out of view then pop back into place once the scrolling is done, as if the fixed-positioning is being simulated using Javascript, which it isn't. Edit Judging by the comments and "answers" it seems that maybe I wasn't clear on what I need. I am looking for a meta tag or css rule/hack or javascript toggle which turns off Samsung's broken fixed-positioning and turns on the Android browser's working fixed-positioning. I am not looking for a Javascript solution that adds broken fixed-positioning to a browser that has no support whatsoever; the Samsung fixed-positioning does that already, it just looks stupid.

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  • Unable to get simple ruby on rails Search to work :/

    - by edu222
    I am new to RoR, any help would be greatly appreciated :) I have a basic scaffolding CRUD app to add customers. I am trying to search by first_name or last_name fields. The error that I am getting is: NoMethodError in Clientes#find You have a nil object when you didn't expect it! You might have expected an instance of Array. The error occurred while evaluating nil.each Extracted source (around line #9): 6: <th>Apellido</th> 7: </tr> 8: 9: <% for cliente in @clientes %> 10: <tr> 11: <td><%=h cliente.client_name %></td> 12: <td><%=h cliente.client_lastname %></td> Application Trace C:/Rails/clientes/app/views/clientes/find.html.erb:9:in `_run_erb_app47views47clientes47find46html46erb' My find function in controllers/clientes_controlee.rb is: # Find def find @cliente = Cliente.find(:all, :conditions=>["client_name = ? OR client_lastname = ?", params[:search_string], params[:search_string]]) end My views/layouts clientes.html.erb form code fragment is: <span style="text-align: right"> <% form_tag "/clientes/find" do %> <%= text_field_tag :search_string %> <%= submit_tag "Search" %> <% end %> </span> The search template I created in views/clientes/find.html.erb: <h1>Listing clientes for <%= params[:search_string] %></h1> <table> <tr> <th>Nombre</th> <th>Apellido</th> </tr> <% for cliente in @clientes %> <tr> <td><%=h cliente.client_name %></td> <td><%=h cliente.client_lastname %></td> <td><%= link_to 'Mostrar', cliente %></td> <td><%= link_to 'Editar', edit_cliente_path(cliente) %></td> <td><%= link_to 'Eliminar', cliente, :confirm =>'Estas Seguro de que desear eliminar a este te cliente?', :method => :delete %></td> </tr> <% end %> </table> <%= link_to 'Atras', clientes_path %

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  • Ajax comments form in ASP.NET MVC2, howto?

    - by Artiom Chilaru
    I've been playing around with different aspects of MVC for some time now, and I've reached a situation where I'm not sure what would be the best way to solve a problem. I'm hoping that the SO community will help me out here :P I've seen a number of examples of Ajax.BeginForm on the internet, and it seems like a very nifty idea. E.g. you have a dropdown where you select a customer - and on selecting one it will load this client's details in some placeholder on the page. This works perfectly fine. But what to do if you want to tie in some validation in the box? Just hypothetically, imagine an article page, and user comments in the bottom. Below the comments area there's an ajax-y "Add comment" box. When a user adds a comment, it will appear in the comments area, below the last comment there. If I set the Ajax.BeginForm to Append the result of the call to the Comments area, it will work fine. But what if the data posted is not valid? Instead of appending a "successful" comment to the comments area I have to show the user validation errors. At this point I decided that the area INSIDE the Ajax.BeginForm will be inside a partial, and the form's submits will return this partial. Validation works fine. On each submit we reload the contents inside the form element. But how to add the successful comment to the top? Other things to consider: The comment form also has a "Preview" button. When the user clicks on Preview, I should load the rendered comment into a preview box. This will probably be inside the form area as well. I was thinking of using Json results instead. When the user submits the form, the server code will generate a Json object with a Success value, and html rendered partials as some properties. Something like { "success": true, "form": "<html form data>", "comment": "successful comment html to inject into the page" } This would be a perfect solution, except there's no way in MVC to render a partial into a string, inside the controller (separation of context, remember?). So.. what should I do then? Any "correct" way to implement this? Anyone???

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  • word wrap in tcpdf

    - by ChuckO
    I'm using tcpdf to creat a pdf version of the html table below. How do I word wrap the text in the cells? <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <style type="text/css"> table.frm { width: 960px; Height:400px; margin-left: auto; margin-right: auto; border-width: 0px 0px 0px 0px; border-spacing: 0px; border-style: solid solid solid solid; border-color: gray gray gray gray; border-collapse: collapse; background-color: white; font-family: Verdana,Arial,Helvetica,sans-serif; font-size: 11px; } table.frm th { Width: 120px; border-width: 1px 1px 1px 1px; padding: 1px 1px 1px 1px; border-style: solid solid solid solid; border-collapse: collapse; border-color: gray gray gray gray; background-color: white; } table.frm td { width: 120px; height: 80px; vertical-align: top; border-width: 1px 1px 1px 1px; padding: 2px 2px 2px 2px; border-style: solid solid solid solid; border-collapse: collapse; border-color: gray gray gray gray; background-color: white; } </style> <title>Weekly Menu</title> </head> <body> <table class="frm"> <tr> <th align="center" colspan="8"><b>WEEKLY MENU</b></th> </tr> <tr> <th align="center" colspan="8"><b>Your Name Here</b></th> </tr> <tr> <th></th> <th>Monday</th> <th>Tuesday</th> <th>Wednesday</th> <th>Thursday</th> <th>Friday</th> <th>Saturday</th> <th>Sunday</th> </tr> <tr> <td><b>Breakfast</b></td> <td>Scrambled Eggs Black Coffee</td> <td>Vegetable Omelet Black Coffee</td> <td>2 slices Toast Black Coffee</td> <td>Cereal w/milk Black Coffee</td> <td>Orange Juice Black Coffee</td> <td>Cereal w/milk Black Coffee</td> <td>Pancakes w/syrup Black Coffee</td> </tr> <tr> <td><b>Lunch</b></td> <td>Tuna Salad Sandwich Diet Coke</td> <td>Greek Salad Black Coffee</td> <td></td> <td>Amer Cheese Sandwich Orange Juice</td> <td></td> <td></td> <td></td> </tr> <tr> <td><b>Dinner</b></td> <td>Burger Fried Onions Diet Coke</td> <td>Steak Fries Diet Sprite</td> <td></td> <td>Chicken Cutlet Baked Potato Peas</td> <td></td> <td></td> <td></td> </tr> <tr> <td><b>Snack</b></td> <td>Apple</td> <td>Orange</td> <td>Sm bag of chips</td> <td>Celery Sticks</td> <td></td> <td></td> <td></td> </tr> </table> </body> </html> This is the tcpdf code: $pdf = new TCPDF('Landscape', 'mm', '', true, 'UTF-8', false); $pdf->SetTitle('Weekly Menu'); $pdf->SetMargins(15, 7.5, 12.5); $pdf->SetAutoPageBreak(TRUE, PDF_MARGIN_BOTTOM); $pdf->SetPrintHeader(false); $pdf->SetPrintFooter(false); $pdf->AddPage(); $pdf->setFormDefaultProp(array('lineWidth'=>0, 'borderStyle'=>'dot', 'fillColor'=>array(235, 235, 255), 'strokeColor'=>array(255,255,250))); $pdf->SetFont('times', 'BU', 12); $pdf->cell(250, 8, 'Weekly Menu', 0, 1, 'C'); $pdf->cell(250, 8, $yourname, 0, 1, 'C'); $pdf->SetFont('times', '', 10); $cw=35; $ch=25; $pdf->SetXY(15,50); $pdf->cell(25,5,'',1,0,'L'); $pdf->cell($cw,5,$day1,1,0,'C'); $pdf->cell($cw,5,$day2,1,0,'C'); $pdf->cell($cw,5,$day3,1,0,'C'); $pdf->cell($cw,5,$day4,1,0,'C'); $pdf->cell($cw,5,$day5,1,0,'C'); $pdf->cell($cw,5,$day6,1,0,'C'); $pdf->cell($cw,5,$day7,1,1,'C'); $pdf->cell(25,$ch,'Breakfast',1,0,'L',0,0,false,'','T'); $pdf->cell($cw,$ch,$record[0]->breakfast,1,0,'L',0,0,false,'','T'); $pdf->cell($cw,$ch,$record[1]->breakfast,1,0,'L',0,0,false,'','T'); $pdf->cell($cw,$ch,$record[2]->breakfast,1,0,'L',0,0,false,'','T'); $pdf->cell($cw,$ch,$record[3]->breakfast,1,0,'L',0,0,false,'','T'); $pdf->cell($cw,$ch,$record[4]->breakfast,1,0,'L',0,0,false,'','T'); $pdf->cell($cw,$ch,$record[5]->breakfast,1,0,'L',0,0,false,'','T'); $pdf->cell($cw,$ch,$record[6]->breakfast,1,1,'L',0,0,false,'','T'); $pdf->cell(25,$ch,'Lunch',1,0,'L',0,0,false,'','T'); $pdf->cell($cw,$ch,$record[0]->lunch,1,0,'L',0,0,false,'','T'); $pdf->cell($cw,$ch,$record[1]->lunch,1,0,'L',0,0,false,'','T'); $pdf->cell($cw,$ch,$record[2]->lunch,1,0,'L',0,0,false,'','T'); $pdf->cell($cw,$ch,$record[3]->lunch,1,0,'L',0,0,false,'','T'); $pdf->cell($cw,$ch,$record[4]->lunch,1,0,'L',0,0,false,'','T'); $pdf->cell($cw,$ch,$record[5]->lunch,1,0,'L',0,0,false,'','T'); $pdf->cell($cw,$ch,$record[6]->lunch,1,1,'L',0,0,false,'','T'); $pdf->cell(25,$ch,'Dinner',1,0,'L',0,0,false,'','T'); $pdf->cell($cw,$ch,$record[0]->dinner,1,0,'L',0,0,false,'','T'); $pdf->cell($cw,$ch,$record[1]->dinner,1,0,'L',0,0,false,'','T'); $pdf->cell($cw,$ch,$record[2]->dinner,1,0,'L',0,0,false,'','T'); $pdf->cell($cw,$ch,$record[3]->dinner,1,0,'L',0,0,false,'','T'); $pdf->cell($cw,$ch,$record[4]->dinner,1,0,'L',0,0,false,'','T'); $pdf->cell($cw,$ch,$record[5]->dinner,1,0,'L',0,0,false,'','T'); $pdf->cell($cw,$ch,$record[6]->dinner,1,1,'L',0,0,false,'','T'); $pdf->cell(25,$ch,'Snack',1,0,'L',0,0,false,'','T'); $pdf->cell($cw,$ch,$record[0]->snack,1,0,'L',0,0,false,'','T'); $pdf->cell($cw,$ch,$record[1]->snack,1,0,'L',0,0,false,'','T'); $pdf->cell($cw,$ch,$record[2]->snack,1,0,'L',0,0,false,'','T'); $pdf->cell($cw,$ch,$record[3]->snack,1,0,'L',0,0,false,'','T'); $pdf->cell($cw,$ch,$record[4]->snack,1,0,'L',0,0,false,'','T'); $pdf->cell($cw,$ch,$record[5]->snack,1,0,'L',0,0,false,'','T'); $pdf->cell($cw,$ch,$record[6]->snack,1,1,'L',0,0,false,'','T'); EOD;

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  • CodeCritics.com: A no nonsense place for coders to critique code and raise awareness of standards and "good coding standards" [closed]

    - by Visionary Software Solutions
    StackOverflow has been a boon for increasing programming knowledge by allowing developers to ask for help and knowledge related to programming. Oftentimes these questions boil down to: This code is broken, fix it I don't know how to do this Is this the best approach (hard question to answer on StackExchange, but democratic) Oftentimes, however, these questions are discussed at a very high level. "I use web services with a proxy client to ..." But, as Grady Booch is fond of saying "the Truth is raw, naked, running code". Those high level descriptions can be accomplished in any ways. Programming is an Art, and there are an infinite number of different ways to do things. But some are better than others. A site devoted to Q&A can help increase knowledge...a site devoted to critique of code can help elevate standards and result in higher quality knowledge. By upvoting the most elegant ways to solve a short, concise problem statement, or just looking at a piece of code and saying "this is ugly, how can we fix it?" we can increase community participation in discussions about the substantive details of an approach: "is my commenting clear? "Is this 3 nested for-loops with a continue that breaks in a special case a good way of building an object?" "Does this extremely generic and polymorphic inheritance hierarchy have issues?") Code is an art/craft and science/engineering artifact. Doesn't it deserve the same type of review treatment as a painting and an experiment? For praising those that provide that moment of zen when looking at exceptionally good code that makes you believe in a better tomorrow, and panning those whose offal is so offensive that were you to meet them on the job you'd say "YOU! GET OUT!!!" Hence, CodeCritics. A collaborative critiquing platform in the style of StackOverflow focused solely on critiquing code that can act as a collaborative code review and assist in the discovery of Design Patterns.

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  • Does the DataAnnotations.DisplayAttribute.Order property not work with ASP.NET MVC 2?

    - by Zack Peterson
    I set values for the Order property of the Display attribute in my model metadata. [MetadataType(typeof(OccasionMetadata))] public partial class Occasion { private class OccasionMetadata { [ScaffoldColumn(false)] public object Id { get; set; } [Required] [DisplayName("Title")] [Display(Order = 0)] public object Designation { get; set; } [Required] [DataType(DataType.MultilineText)] [Display(Order = 3)] public object Summary { get; set; } [Required] [DataType(DataType.DateTime)] [Display(Order = 1)] public object Start { get; set; } [Required] [DataType(DataType.DateTime)] [Display(Order = 2)] public object Finish { get; set; } } } I present my models in strongly-typed views using the DisplayForModel and EditorForModel methods. <%= Html.DisplayForModel() %> and <%= Html.EditorForModel() %> But, ASP.NET MVC 2 displays the fields out of order! What might I have wrong?

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  • Odd behavior in Django Form (readonly field/widget)

    - by jamida
    I'm having a problem with a test app I'm writing to verify some Django functionality. The test app is a small "grade book" application that is currently using Alex Gaynor's readonly field functionality http://lazypython.blogspot.com/2008/12/building-read-only-field-in-django.html There are 2 problems which may be related. First, when I flop the comment on these 2 lines below: # myform = GradeForm(data=request.POST, instance=mygrade) myform = GradeROForm(data=request.POST, instance=mygrade) it works like I expect, except of course that the student field is changeable. When the comments are the shown way, the "studentId" field is displayed as a number (not the name, problem 1) and when I hit submit I get an error saying that studentId needs to be a Student instance. I'm at a loss as to how to fix this. I'm not wedded to Alex Gaynor's code. ANY code will work. I'm relatively new to both Python and Django, so the hints I've seen on websites that say "making a read-only field is easy" are still beyond me. // models.py class Student(models.Model): name = models.CharField(max_length=50) parent = models.CharField(max_length=50) def __unicode__(self): return self.name class Grade(models.Model): studentId = models.ForeignKey(Student) finalGrade = models.CharField(max_length=3) # testbed.grades.readonly is alex gaynor's code from testbed.grades.readonly import ReadOnlyField class GradeROForm(ModelForm): studentId = ReadOnlyField() class Meta: model=Grade class GradeForm(ModelForm): class Meta: model=Grade // views.py def modifyGrade(request,student): student = Student.objects.get(name=student) mygrade = Grade.objects.get(studentId=student) if request.method == "POST": # myform = GradeForm(data=request.POST, instance=mygrade) myform = GradeROForm(data=request.POST, instance=mygrade) if myform.is_valid(): grade = myform.save() info = "successfully updated %s" % grade.studentId else: # myform=GradeForm(instance=mygrade) myform=GradeROForm(instance=mygrade) return render_to_response('grades/modifyGrade.html',locals()) // template <p>{{ info }}</p> <form method="POST" action=""> <table> {{ myform.as_table }} </table> <input type="submit" value="Submit"> </form> // Alex Gaynor's code from django import forms from django.utils.html import escape from django.utils.safestring import mark_safe from django.forms.util import flatatt class ReadOnlyWidget(forms.Widget): def render(self, name, value, attrs): final_attrs = self.build_attrs(attrs, name=name) if hasattr(self, 'initial'): value = self.initial return mark_safe("<span %s>%s</span>" % (flatatt(final_attrs), escape(value) or '')) def _has_changed(self, initial, data): return False class ReadOnlyField(forms.FileField): widget = ReadOnlyWidget def __init__(self, widget=None, label=None, initial=None, help_text=None): forms.Field.__init__(self, label=label, initial=initial, help_text=help_text, widget=widget) def clean(self, value, initial): self.widget.initial = initial return initial

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  • How create widget with clickable text in QT/PyQt?

    - by serge
    Hi everyone, i'm trying to realize non-editable QTableView with widgets in cells that should contain clickable listed text. With following code i'm setting widget in definite cell: view = QTableView() label = QLabel( <some html text> ) ... view.setIndexWidget(index, label) I used html to make label's text clickable, but links became blue with underline and moreover by clicking on it with right mouse button appears popup menu with "Copy Link Locaion" option, where i wanted to place some hidden information instead of url and of course do not let user see this info. I'm looking for light-weight widget, i thought that insertion of QGraphicsView in each cell will lead to big computer loads, but can't think of any other solution. Can you advice what should i use for this purpose? Thank you in advance Serge

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  • Upload Image with Django Model Form

    - by jmitchel3
    I'm having difficulty uploading the following model with model form. I can upload fine in the admin but that's not all that useful for a project that limits admin access. #Models.py class Profile(models.Model): name = models.CharField(max_length=128) user = models.ForeignKey(User) profile_pic = models.ImageField(upload_to='img/profile/%Y/%m/') #views.py def create_profile(request): try: profile = Profile.objects.get(user=request.user) except: pass form = CreateProfileForm(request.POST or None, instance=profile) if form.is_valid(): new = form.save(commit=False) new.user = request.user new.save() return render_to_response('profile.html', locals(), context_instance=RequestContext(request)) #Profile.html <form enctype="multipart/form-data" method="post">{% csrf_token %} <tr><td>{{ form.as_p }}</td></tr> <tr><td><button type="submit" class="btn">Submit</button></td></tr> </form> Note: All the other data in the form saves perfectly well, the photo does not upload at all. Thank you for your help!

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  • python-pam & pam_time module -- possible to check a user without password?

    - by medigeek
    I've looked at the example script of python-pam and linux pam pages, but it's a bit confusing, at least for a beginner in PAM (that I am): http://www.kernel.org/pub/linux/libs/pam/Linux-PAM-html/Linux-PAM_ADG.html http://packages.ubuntu.com/python-pam Is it possible to check if a user has or does not have access to login, without entering password? I would like to create a script that root can use to check if a user is allowed or not to login to the system. If so, can someone post an example that checks if the user is allowed against pam_time? Thanks in advance!

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  • Kohana and Javscript path

    - by Leonti
    Hi! I have a following Kohana setup: All my files are placed under 'public_html/koh' My js files are placed under 'public_html/koh/media/js/' I use html::script helper to include those javascript files which generates me following html code: In my js I access one of controllers like 'json/getsomething' (which is http://localhost/koh/json/getsomething). It works OK as long as I'm staying in top of the controller: http://localhost/koh/home When I go to 'http://localhost/koh/home/index' it renders the same page of course but 'json/getsomething' is not accessible from Javascript anymore. How can I solve this problem? Include Javascript using absolute path? Create a variable in js like var fullPath = 'http://localhost/koh/'? What is the best practice to do it? Leonti

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  • Does Javascript/EcmaScript3 support ISO8601 date parsing?

    - by AlexanderN
    How are you currently parsing ISO8601 dates e.g. 2010-02-23T23:04:48Z in JavaScript? Some browsers return NaN (including Chrome) when using the code below, FF3.6+ works though. <html> <body> <script type="text/javascript"> var d = Date.parse("2010-02-23T23:04:48Z"); document.write(d); </script> </body> </html> You can try this here http://www.w3schools.com/jsref/tryit.asp?filename=tryjsref_parse ps: DateJs doesn't seem to support ISO8601 parsing.

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  • Downloading Video on iPhone using SDK

    - by Vivek Navadia
    Hello All I would like to develop such iphone application that provides functionality to download viedo. i am doing some as below 1) Loading HTML content on web view 2) The loaded html content contains the video link (i.e http://test.com/test.mp4") 3) When i click on that it will play the video in native player. 4) but i would like to prevent this thing and start downloading video from that URL for example, if i click on link it should not open native video player, it should start downloading from that url and store somewhere on iphone (i.e document directory) is there any solution for same? Thanks Vivek

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  • Alpha transparent PNGs not displaying correctly in Mobile Safari

    - by worksology
    I'm using some semi-transparent PNGs as background-images on various websites. These are usually something like a 1x1 image with a 30-percent opaque white layer. I've noticed that Mobile Safari does not display them correctly, giving them a darker/grayish tint. I've created a couple test pages to illustrate. View them both in your normal browser, and then on Mobile Safari, and you should see what I mean. This shows 11 red images of varying opacities on white: http://thecompleteworks.org/alpha-tests/index-red.html This shows 11 white images of varying opacities on blue: http://thecompleteworks.org/alpha-tests/index.html Is this a MobileSafari bug (I couldn't imagine so), or do I need to do something different, either to my pages or PNGs? (Here's how I create the PNGs: In Photoshop, create a 1x1 transparent canvas. Draw a white rectangle in Layer 1. Set opacity to, say 30 percent, Save for Web as 24-bit PNG with transparency.)

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