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  • Emacs How to redefine Shift-R for expected use

    - by John Bellone
    I've checked my elisp files to make sure that I do not have any bindings that contain Shift+R (and I have not found any). I expect SHIFT+R to print an uppercase character, but instead I get R R undefined inside of the Emacs command line. This is only in C/C++ major modes. Any suggestions? Update: Describing the key shows that it is undefined. How would I define it for the normal, expected use (capitalizing the letter R)?

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  • how to refactor user-permission system?

    - by John
    Sorry for lengthy question. I can't tell if this should be a programming question or a project management question. Any advice will help. I inherited a reasonably large web project (1 year old) from a solo freelancer who architected it then abandoned it. The project was a mess, but I cleaned up what I could, and now the system is more maintainable. I need suggestions on how to extend the user-permission system. As it is now, the database has a t_user table with the column t_user.membership_type. Currently, there are 4 membership types with the following properties: 3 of the membership types are almost functionally the same, except for the different monthly fees each must pay 1 of the membership type is a "fake-user" type which has limited access ( different business logic also applies) With regards to the fake-user type, if you look in the system's business logic files, you will see a lot of hard-coded IF statements that do something like if (fake-user) { // do something } else { // a paid member of type 1,2 or 3 // proceed normally } My client asked me to add 3 more membership types to the system, each of them with unique features to be implemented this month, and substantive "to-be-determined" features next month. My first reaction is that I need to refactor the user-permission system. But it concerns me that I don't have enough information on the "to-be-determined" membership type features for next month. Refactoring the user-permission system will take a substantive amount of time. I don't want to refactor something and throw it out the following month. I get substantive feature requests on a monthly basis that come out of the blue. There is no project road map. I've asked my client to provide me with a roadmap of what they intend to do with the new membership types, but their answer is along the lines of "We just want to do [feature here] this month. We'll think of something new next month." So questions that come to mind are: 1) Is it dangerous for me to refactor the user permission system not knowing what membership type features exist beyond a month from now? 2) Should I refactor the user permission system regardless? Or just continue adding IF statements as needed in all my controller files? Or can you recommend a different approach to user permission systems? Maybe role-based ? 3) Should this project have a road map? For a 1 year old project like mine, how far into the future should this roadmap project? 4) Any general advice on the best way to add 3 new membership types?

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  • Any way to make dialogs appear/disappear with a transition in MFC?

    - by John
    For instance I have a main dialog, when I click a button a smaller dialog appears next to it. But it would be neat if the small one could somehow transition in, rather than simply appear. For instance using transparency, or zooming in, or sliding in from width=0 - full-width. Making an actual dialog do such things isn't too hard, but what about the controls within it? How might we approach this in a way that is reusable on different dialogs?

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  • Resque: Slow worker startup and Forking

    - by David John
    I'm currently moving my application from a Linode setup to EC2. Redis is currently installed on a remote instance with various worker instances interacting with the queue. Thats all going fantastic. My problem is with the amount of time it takes for a worker to be 'instantiated' and slow forking. Starting a worker will usually take between 30 seconds and a minute(from god.rb starting the worker rake task and the worker actively starting work on the queue). I could live with that, but I've not experienced such a wait time on my current Linode production box so I believe its one of my symptoms to a bigger problem. Next issue is that jobs that took a second or less in my previous environment now seem to take about 5 to 10 times longer.. I'm assuming this must be some sort of issue with my Ubuntu install on EC2? One notable difference is that I'm running REE 1.8.7-2010.01 in my new setup, and REE 1.8.6 on the old Linode boxes. Anyone else experienced these issues?

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  • jquery plugin caroufredsel hide next/prev buttons until mouseover carousel

    - by John Magnolia
    I am trying to make the buttons hide by default and they only become visible when the mouse is over. Although I am having problems where the carousel core code seems to be adding display block even if I set display none in the CSS. var $slides = $("#slides"); $slides.find('ul.banners').eq(0).carouFredSel({ height: 360, items: { visible: 1 }, scroll: { easing: "easeInOutSine", duration: 1200 }, auto: { delay: 1000 }, prev: { button: $slides.find('.prev'), items: 1 }, next:{ button: $slides.find('.next'), items: 1 }, pagination: { container: $slides.find(".pagination"), keys: true, anchorBuilder: function(nr) { return '<li><a href="#"><span>'+nr+'</span></a></li>'; } } }); $slideButtons = $slides.find(".next,.prev"); $slides.find('ul.banners').hover(function(){ $slideButtons.fadeIn(); },function(){ $slideButtons.fadeOut(); }); HTML <div id="slides"> <ul class="banners"> <li><img /></li> <li><img /></li> </ul> <ul class="pagination"></ul> <div class="next">Next</div> <div class="prev">Previous</div> </div>

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  • DataGridView: Scroll bar does not refreshed

    - by David.Chu.ca
    I am working (fixing bugs) on a project which was written in VS 2005. There is one DataGridView control on a form. When it is first time loaded, the control's data grid is populated with rows of data from a collection manually or in codes. Actually, there is method PopulateDataGrid() do the job. There is also another control on the form. When control is changed, the data grid will be cleared first and then rows are repopulated again through PopulateDataGrid(). The problem is that when the grid is refreshed, the vertical scroll bar does not get reset correctly. I thought it should be. Since the scroll bar is not reset, when I tried to click on grid and move down, I got exception: the max value of scroll bar was exceeded. All the settings for grid control are default values. For example, the ScrollBars is Both. The following is the only related place to set row auto size property: poDataGridView.AutoSizeRowsMode = DataGridViewAutoSizeRowsMode.DisplayedCellsExceptHeaders; I am not sure if there is any property I have to set in designer?

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  • How to return array of C++ objects from a PHP extension

    - by John Factorial
    I need to have my PHP extension return an array of objects, but I can't seem to figure out how to do this. I have a Graph object written in C++. Graph.getNodes() returns a std::map<int, Node*>. Here's the code I have currently: struct node_object { zend_object std; Node *node; }; zend_class_entry *node_ce; then PHP_METHOD(Graph, getNodes) { Graph *graph; GET_GRAPH(graph, obj) // a macro I wrote to populate graph node_object* n; zval* node_zval; if (obj == NULL) { RETURN_NULL(); } if (object_init_ex(node_zval, node_ce) != SUCCESS) { RETURN_NULL(); } std::map nodes = graph-getNodes(); array_init(return_value); for (std::map::iterator i = nodes.begin(); i != nodes.end(); ++i) { php_printf("X"); n = (node_object*) zend_object_store_get_object(node_zval TSRMLS_CC); n-node = i-second; add_index_zval(return_value, i-first, node_zval); } php_printf("]"); } When i run php -r '$g = new Graph(); $g->getNodes();' I get the output XX]Segmentation fault meaning the getNodes() function loops successfully through my 2-node list, returns, then segfaults. What am I doing wrong?

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  • Best way to test a batch email script

    - by John
    I have a php mail script sitting on a LAMP vps server. The script grabs about 1000 emails and sends them each an html email. I tested the script with about half a dozen of my own test email accounts and things worked fine. But I am concerned something may go wrong when I actually use this script for 1000 emails. Some things I would like to test for are 1) Confirm all 1000 emails were sent and received 2) Test to make sure emails did not end up in people's spam folders 3) Detect any other general failures Does anyone have suggestions on how I can test for the above cases? I would like to read about your experiences building batch email scripts.

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  • Brilliant features of C++

    - by John
    (Following Features to remove from C++ and Desired features for C++, I thought why not complete the trio...) What C++ features would you not change? What features are elegantly and brilliantly implemented and still look better than other popular languages?

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  • Find tag that contains certain text and add a class

    - by David Gard
    I have the following HTML, and I need to add a class to both <li> and <a> where the text 'Charts' exists (so not the second line, but rather the 4th and 5th). I cannot change the output of the HTML. <div class="wp-submenu-wrap"> <div class="wp-submenu-head">Charts</div> <ul> <li class="wp-first-item"> <a class="wp-first-item" tabindex="1" href="admin.php?page=charts">Charts</a> </li> <li> <a tabindex="1" href="admin.php?page=add-chart">Add Chart</a> </li> </ul> </div> I've tried doing this by locating the <a> tag that contains the text, but it is not working. Can somebody please point me in the correct direction? Thanks. Code that I've tried - $(document).ready(function(){ if(pagenow === 'admin_page_edit-chart') { var page = $('.wp-submenu-wrap a:contains["Charts"]'); page.addClass('current'); page.parent('li').addClass('current'); } });

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  • C++ Passing `this` into method by reference

    - by David
    I have a class constructor that expects a reference to another class object to be passed in as an argument. I understand that references are preferable to pointers when no pointer arithmetic will be performed or when a null value will not exist. This is the header declaration of the constructor: class MixerLine { private: MIXERLINE _mixerLine; public: MixerLine(const MixerDevice& const parentMixer, DWORD destinationIndex); ~MixerLine(); } This is the code that calls the constructor (MixerDevice.cpp): void MixerDevice::enumerateLines() { DWORD numLines = getDestinationCount(); for(DWORD i=0;i<numLines;i++) { MixerLine mixerLine( this, i ); // other code here removed } } Compilation of MixerDevice.cpp fails with this error: Error 3 error C2664: 'MixerLine::MixerLine(const MixerDevice &,DWORD)' : cannot convert parameter 1 from 'MixerDevice *const ' to 'const MixerDevice &' But I thought pointer values could be assigned to pointers, e.g. Foo* foo = new Foo(); Foo& bar = foo;

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  • Does OpenGL stencil test happen before or after fragment program runs?

    - by david
    When I set glStencilFunc( GL_NEVER, . . . ) effectively disabling all drawing, and then run my [shader-bound] program I get no performance increase over letting the fragment shader run. I thought the stencil test happened before the fragment program. Is that not the case, or at least not guaranteed? Replacing the fragment shader with one that simply writes a constant to gl_FragColor does result in a higher FPS.

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  • Session-timeout configuration doesn't work?

    - by David
    In web.xml I have this <session-config> <session-timeout>2</session-timeout> </session-config> <listener> <listener-class>myapplication.SessionListener</listener-class> In the SessionListener.java I have public void sessionDestroyed (HttpSessionEvent event){ System.out.println("Visitor Removed!!"); } But it seems System.out.println("Visitor Removed!!") has never been executed. I am new to Tombat6 and JSp. Any suggestion please?

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  • How to manually set an authenticated user in Spring Security / SpringMVC

    - by David Parks
    After a new user submits a 'New account' form, I want to manually log that user in so they don't have to login on the subsequent page. The normal form login page going through the spring security interceptor works just fine. In the new-account-form controller I am creating a UsernamePasswordAuthenticationToken and setting it in the SecurityContext manually: SecurityContextHolder.getContext().setAuthentication(authentication); On that same page I later check that the user is logged in with: SecurityContextHolder.getContext().getAuthentication().getAuthorities(); This returns the authorities I set earlier in the authentication. All is well. But when this same code is called on the very next page I load, the authentication token is just UserAnonymous. I'm not clear why it did not keep the authentication I set on the previous request. Any thoughts? Could it have to do with session ID's not being set up correctly? Is there something that is possibly overwriting my authentication somehow? Perhaps I just need another step to save the authentication? Or is there something I need to do to declare the authentication across the whole session rather than a single request somehow? Just looking for some thoughts that might help me see what's happening here.

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  • Multiple loadmovie() ends up with multiple videos played at the same time!

    - by David
    Hi, i'm using loadmovie() to load a youtube video player inside my flash website but when i load another video the old one doesn't stop, so i tried unloadmovie to destroy it but it seems that i did a mistake in my code This is how the code looks to stop the old one an load the new: vloader.unloadMovie(); vloader.loadMovie("http://www.youtube.com/v/Alw5hs0chj0&hl=fr&fs=1hJ-mPcGtC"); How to do that? please don't suggest me to use other objects or classes, i only want to edit that code. Note: I have an empty CLIP called "vloader" where i load the video player. Thank you

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  • Does/Will autofac's ASP.NET integration support PreInit or Init events?

    - by David Rubin
    I see from poking around in the 1.4.4 source that Autofac's ASP.NET integration (via Autofac.Integration.Web) peforms injection of properties on the Page as part of the HttpContext.PreRequestHandlerExecute event handling, but that the page's child controls don't get their properties injected until Page.PreLoad. What this means, though is that the injected properties of child controls are unavailable for use in the OnInit event handler. For example, this works fine: HelloWorld.aspx: <%@ Page Language="C#" AutoEventWireup="true" CodeBehind="HelloWorld.aspx.cs" Inherits="HelloWorld" %> <html> <body> <asp:Label runat="server" id="lblMsg" OnInit="HandleInit"/> </body> </html> HelloWorld.aspx.cs: ... protected void HandleInit() { lblMsg.Text = _msgProvider.GetMessage(); } public IMsgProvider _msgProvider { private get; set; } // <-- Injected But changing the HelloWorld Page to a UserControl (.acsx) and putting the UserControl in another page doesn't work because _msgProvider isn't injected early enough. Is there a way to make Autofac inject properties of child controls earlier? Or is this something that can be addressed in a future build? Thanks!

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  • Where do current (not HTML5) browsers stand on clipboard support for non-text data?

    - by John
    I don't really know where the line is between the browser itself and HTML/JS here. But let's say I want to write a web-app where I can copy a chunk of data from MSPaint (select, CTRL+c) and paste it into a web-page in some way... ultimately the point is the data goes to the server without me having to save it as a file first. Where are the problems here - browsers or client-side technologies? For instance if JS can't do it, could Flex/Silverlight? Advice on future technology welcome, but doesn't really answer the question - where are we right now with IE/FF/Chrome and JS/Flex/SL?

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  • User input in Perl with IO::Socket

    - by David
    I am trying to make a perl program which allows a user to input the host and the port number of a foreign host to connect to using IO::Socket. It allows me to run the program and input a host and a port but it never connects and says "Could not connect to [host] at c:\users\USER\Documents\code\perl\sql.pl line 18, line 2." What am i doing wrong with this code shown below? And also, how can i have input validation on my host, which can either be a host name or an ip address? Thanks a bunch! Code Below use IO::Socket print "Host to connect to: "; chomp ($host = <STDIN>); print "Port to connect with: "; chomp ($port = <STDIN>); while(($port > 65535) || ($port <= 0)){ print "Port to connect with [Port > 0 < 65535] : "; chomp ($port = <STDIN>); } print "\nConnecting to host $host on port $port\n"; $socket = new IO::Socket::INET ( LocalHost => '$host', LocalPort => '$port', Proto => 'tcp', Listen => 5, Reuse => 1 ); die "Could not connect to $host";

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  • Module Adminhtml blocks not loading

    - by David Tay
    I was working on a Magento module and it was working fine. At some point, I was trying to enable WYSIWYG in an edit form 'content' field and suddenly, my adminhtml grid and edit blocks stopped being generated. On my system are TinyMCE and Fontis FCKEditor WYSIWYG editors extensions. I'm not sure what I did wrong but my adminhtml blocks will no longer generate. Here's a dump of all the blocks from my module's adminhtml layout: array(17) { [0]=> string(4) "root" [1]=> string(4) "head" [2]=> string(13) "head.calendar" [3]=> string(14) "global_notices" [4]=> string(6) "header" [5]=> string(4) "menu" [6]=> string(11) "breadcrumbs" [7]=> string(7) "formkey" [8]=> string(12) "js_translate" [9]=> string(4) "left" [10]=> string(7) "content" [11]=> string(8) "messages" [12]=> string(2) "js" [13]=> string(6) "footer" [14]=> string(8) "profiler" [15]=> string(15) "before_body_end" [16]=> string(7) "wysiwyg" } As you can see, the last item is "wysiwyg" but on the layout output of other magento modules, there are more blocks. For example, on MathieuF's calendar extension, these are all the layout blocks: array(26) { [0]=> string(4) "root" [1]=> string(4) "head" [2]=> string(13) "head.calendar" [3]=> string(14) "global_notices" [4]=> string(6) "header" [5]=> string(4) "menu" [6]=> string(11) "breadcrumbs" [7]=> string(7) "formkey" [8]=> string(12) "js_translate" [9]=> string(4) "left" [10]=> string(7) "content" [11]=> string(8) "messages" [12]=> string(2) "js" [13]=> string(6) "footer" [14]=> string(8) "profiler" [15]=> string(15) "before_body_end" [16]=> string(7) "wysiwyg" [17]=> string(27) "adminhtml_event.grid.child0" [18]=> string(12) "ANONYMOUS_19" [19]=> string(27) "adminhtml_event.grid.child1" [20]=> string(12) "ANONYMOUS_21" [21]=> string(27) "adminhtml_event.grid.child2" [22]=> string(20) "adminhtml_event.grid" [23]=> string(12) "ANONYMOUS_24" [24]=> string(19) "ANONYMOUS_17.child1" [25]=> string(14) "content.child0" } Does anyone have any idea what's wrong? I've already tried Alan Storm's Layout and Config Viewers and cannot find any clues as to what I did wrong. Any help would be greatly appreciated.

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  • Google Suggest - What determines the sort order of suggested queries on google?

    - by John Himmelman
    How is this sort order determined? Is it ranked by popularity, number of results, or a mysterious google algorithm? Does there algorithm take into account the search popularity of a query (using google-trends data or something)? Edit: I found a news article dating back to when google suggest was made public in 2004. Here is an excerpt... How does it work? "Our algorithms use a wide range of information to predict the queries users are most likely to want to see. For example, Google Suggest uses data about the overall popularity of various searches to help rank the refinements it offers." Source: http://www.free-seo-news.com/newsletter138.htm

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  • Get Windows Last Reboot Timestamp?

    - by David.Chu.ca
    I have a PC on remote connected by network, but it occasionally crashes or is restarted by remote users. After the restart, some services and applications have to be in running status. So I would like to find out the reboot as soon as possible. I think PS may be a good choice with some scripts so that I could make remote call to get the last reboot timestamp information. Is there any way to get a remote Windows XP last reboot timestamp by using PowerShell 2.0?

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