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  • Button not moving on my interface

    - by user1500134
    First before I say anything I want to announce that i'm fairly new to this kind of stuff so don't get all super techie on me :D ! Ok so i'm making an app and i'm trying to get a button to move to certain coordinates depending on the screen size of the phone (4, 4S, 5, etc...). I have correct syntax but the button will not move at all. Here is the part of my .m ViewController file... - (void)viewDidLoad { if([[UIScreen mainScreen] respondsToSelector:NSSelectorFromString(@"scale")]) { if ([[UIScreen mainScreen] scale] < 1.1) { CGRect frame = done.frame; frame.origin.x = 129; //New x coordinate frame.origin.y = 401; //New y coordinate done.frame = frame; NSLog(@"Standard Resolution"); } if ([[UIScreen mainScreen] scale] > 1.9) { NSLog(@"High Defenition Resolution"); } } [super viewDidLoad]; // Do any additional setup after loading the view from its nib. } The NSLog is triggering int he console saying 'Standard Resolution'but the button doesn't move from where I placed it in the XIB file. This may be a small stupid mistake but hopefully you can help me anyways... Thanks guys! :) P.S. Yes I did link my IBOutlet to the button

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  • Filtering Questions (posts) by tag_name in TagController#index passing /tags?tag_name=something

    - by bgadoci
    I am trying to get my TagsController#index action to display only the Questions that contain certain tags when passing the search parameter tag_name. I am not getting an error just can't get the filter to work correctly such that upon receiving the /tags?tag_name=something url, only those questions are displayed . Here is the setup: class Tag < ActiveRecord::Base belongs_to :question def self.search(str) return [] if str.blank? cond_text = str.split.map{|w| "tag_name LIKE ? "}.join(" OR ") cond_values = str.split.map{|w| "%#{w}%"} all(:order => "created_at DESC", :conditions => (str ? [cond_text, *cond_values] : [])) end end and class Question < ActiveRecord::Base has_many :tags, :dependent => :destroy end tag link that would send the URL to the TagsController looks like this: <%= link_to(tag_name, tags_path(:tag_name => tag_name)) %> and outputs: /tags?tag_name=something In my /views/tags/index.html.erb view I am calling the questions by rendering a partial /views/questions/_question.html.erb. <%= render :partial => @questions %> When I send the URL with the search parameter nothing happens. Here is my TagsController#index action: def index @tags = Tag.search(params[:search]).paginate :page => params[:page], :per_page => 5 @tagsearch = Tag.search(params[:search]) @tag_counts = Tag.count(:group => :tag_name, :order => 'count_all DESC', :limit => 100) @questions = Question.all( :order => 'created_at DESC', :limit => 50) respond_to do |format| format.html # index.html.erb format.xml { render :xml => @tags } end end How can I properly filter questions displayed in the /views/tags/index.html.erb file for the parameter tag.tag_name?

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  • JQueryMobile 1.1.1 List items not anchoring to the left

    - by user1664935
    I'm trying to create a simple thumbnail list, the code is pretty much copied off jqm docs pages. However, when I use the code below the button element of the list isn't anchored to the left of the list item and instead appears centered...Can anyone help me? It's driving me crazy! I haven't got any styles in other than what is in the jquerymobile default page template <div id="listDiv" class="ui-content" data-role="main"> <div id="listInformation" data-role="content-primary"> <ul id="swipeMeChildrenList" data-role="listview" class="ui-listview"> <li data-corners="false" data-shadow="false" data-iconshadow="true" data-wrapperels="div" data-icon="arrow-r" data-iconpos="right" data-theme="c" class="ui-btn ui-btn-icon-right ui-li-has-arrow ui-li ui-btn-up-c"> <div class="ui-btn-inner ui-li"> <div class="ui-btn-text"> <a href="index.html" class="ui-link-inherit"> <img src="images/album-p.jpg" class="ui-li-thumb"> <p>Ha</p> </a> </div> <span class="ui-icon ui-icon-arrow-r ui-icon-shadow">&nbsp;</span> </div> </li> </ul> </div> </div>

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  • C vs C++ function questions

    - by james
    I am learning C, and after starting out learning C++ as my first compiled language, I decided to "go back to basics" and learn C. There are two questions that I have concerning the ways each language deals with functions. Firstly, why does C "not care" about the scope that functions are defined in, whereas C++ does? For example, int main() { donothing(); return 0; } void donothing() { } the above will not compile in a C++ compiler, whereas it will compile in a C compiler. Why is this? Isn't C++ mostly just an extension on C, and should be mostly "backward compatible"? Secondly, the book that I found (Link to pdf) does not seem to state a return type for the main function. I check around and found other books and websites and these also commonly do not specify return types for the main function. If I try to compile a program that does not specify a return type for main, it compiles fine (although with some warnings) in a C compiler, but it doesn't compile in a C++ compiler. Again, why is that? Is it better style to always specify the return type as an integer rather than leaving it out? Thanks for any help, and just as a side note, if anyone can suggest a better book that I should buy that would be great!

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  • Show only div of the product hovering in category grid with jQuery

    - by Dane
    On Magento, I'm trying to get avalable attributes per product in a new div (show/ hide onmouseover) as soon as I hover a product. Unfortunately, my jQuery code opens every div with the same name. I think, I need to do it with jQuery(this) but I tried it in a 1000 different ways, and it won't work. Maybe, somebody here can help me with a better code. jQuery(function() { jQuery('.slideDiv').hide().data('over', false); jQuery('#hover').hover(function() { jQuery('.slideDiv').fadeIn(); }, function() { // Check if mouse did not go over .dialog before hiding it again var timeOut = setTimeout(function() { if (!jQuery('.slideDiv').data('over')) { jQuery('.slideDiv').fadeOut(); clearTimeout(timeOut); } }, 100); }); // Set data for filtering on mouse events for #hover-here jQuery('.slideDiv').hover(function() { jQuery(this).data('over', true); }, function() { jQuery(this).fadeOut().data('over', false); }); }); The PHP just prints the attributes needed. <a href="#" id="hover">Custom Attributes</a> <div class="slideDiv"> <?php $attrs = $_product->getTypeInstance(true)->getConfigurableAttributesAsArray($_product); foreach($attrs as $attr) { if(0 == strcmp("shoe_size", $attr['attribute_code'])) { $options = $attr['values']; print "Größen:<br />"; foreach($options as $option) { print "{$option['store_label']}<br />"; } } } ?> </div> I added the script to [new link] http://jsfiddle.net/xsxfr/47/ so you can see there, that it is not working like this right now :(.

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  • Drop Down not even showing up in IE6

    - by blackessej
    I've got a drop down menu here that just plain won't show up in IE6. The site works perfectly in every other browser. Seems daft to lose sleep over IE6, I know, but the site is for a demographic who could very well still be using it. Here's the CSS: html { height:100%; } body, p, a, ul, li, ol, h1, h2, h3, h4, h5, h6 { margin:0; padding:0; } body { behavior:url("csshover3.htc"); font-size:14px; font-family:Arial, Helvetica, sans-serif; background-color:#d3d3d3; height:100%; } h1 { font-size:18px; color:#752eca; text-decoration:none; } h2 { font-size:14px; color:#909090; text-decoration:none!important; } p { text-indent:20px; color:#000; } p a { color:#000; text-decoration:underline; } p.foot { text-indent:0px; } p.link { font-size:18px; color:#30F; text-decoration:underline!important; } a { color:#4d2288; text-decoration:none; outline:none; } a:visited { color:#4d2288; } p a:hover { text-decoration:underline!important; } ul#nav { padding:5px; margin:0px auto; width:100%; } ul#nav li a { display:block; font-weight:bold; padding:2px 10px; background:#bacddb; } ul#nav li a:hover { background:#888; color:#fff; } li { list-style:none; float:left; position:relative; width:225px; text-align:center; margin:0px auto; margin-right:4px; border:1px solid #4d2288; } li ul { display:none; position:relative; width:auto; top:0; left:0; margin-left:-1px; } li>ul { top:auto; left:auto; border-top:none; } li:hover ul, li.over ul { display:block; } ul#nav li.current a { background:#b8ab28; } ul#nav li.current a:hover { background:#888; } img { margin:10px 0 5px; } *html img { margin:20px; } .coltextimg { position:relative; float:left; background-position:left bottom; padding:0px 20px 10px 0px; border:none; } #maincontent { width:940px; margin:0px auto; postition:absolute; } *html #maincontent { margin-left:42px; } #header { float:left; width:100%; height:auto!important; height:100%; min-height:100%; margin:0px auto; background-image:url(images/banner_test.jpg); background-repeat:no-repeat; border:2px solid #752eca; -webkit-border-top-left-radius:10px; -webkit-border-top-right-radius:10px; -moz-border-radius-topleft:10px; -moz-border-radius-topright:10px; border-top-left-radius:10px; border-top-right-radius:10px; } .colmask { position:relative; margin-top:160px; clear:both; float:left; width:100%; overflow:hidden; } .colright, .colmid { float:left; width:100%; position:relative; } .col1, .col2 { float:left; position:relative; padding:10px 0 1em 0; overflow:hidden; } .twocol { background:#fff; } .twocol .colmid { right:45%; background:#fff; } .twocol .col1 { width:51%; left:47%; text-align:justify; z-index:0; } .twocol .col2 { width:41%; left:51%; text-align:justify; z-index:0; } .twocol .colimg { border:2px solid #a0a0a0; } .twocol .colvid1 { width:360px; height:240px; } .twocol .colvid2 { width:360px; height:240px; } #footer { text-align:center; font-size:9px; padding:10px 0 1em 0; clear:both; width:100%; height:100%; } *html #footer { height:43px; } #footer p a { text-decoration:none; } #lyr_ddmenu { position:absolute; z-index:1; height:10px; top:120px; float:left; width:1000px; margin:0px auto; padding:5px; } #contact { position:absolute; float:right; font-size:10px; } A.Controls:link { color:#666666; text-decoration:none; font-weight:bold; } A.Controls:visited { color:#666666; text-decoration:none; font-weight:bold; } A.Controls:active { color:#666666; text-decoration:none; font-weight:bold; } A.Controls:hover { color:#be0000; text-decoration:none; font-weight:bold; } And here's the html I'm having the specific problem with: <div id="maincontent"> <div id="header"> <div id="lyr_ddmenu"> <ul id="nav"> <li class="current"><href here...</a> <ul class="sub"> <li><href here...</a></li> <li><href here...</a></li> <li><href here...</a></li> <li><href here...</a></li> <li><href here...</a></li> </ul></li> <li><href here...</a></li> <ul class="sub"> <li><href here...</a></li> <li><href here...</a></li> <li><href here...</a></li> <li><href here...</a></li> </ul></li> <li><href here...</a></li> <li><href here...</a></li> <ul class="sub"> <li><href here...</a></li> </ul></li> </ul> </div> Thanks!

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  • Why does this php/ajax query fail?

    - by Ashley Brown
    I'm ajaxing over to this php file. $a = 'old'; $b = 'new'; if ($_POST['info-type'] == $a || $b) { $info = $_POST['info-type']; $query = "SELECT * FROM `tld` WHERE type = '".$var."'"; } $query = "SELECT * FROM `tld` "; $result = mysqli_query($link,$query); while($row = mysqli_fetch_assoc($result)) { echo '<div>'.$row['something'].'</div>'; } The data posted is either 'all' 'new' or 'old'. If i send the data as either new or old, the script works and outputs as expected. If the posted data is neither new or old but all instead, it fails and don't show any errors or respond anything back. (I've monitored via dev tools aswell) So, I tried this if ($_POST['info-type'] == $a || $b) { $info = $_POST['info-type']; $var = "SELECT * FROM `tld` WHERE type = '".$var."'"; } elseif ($_POST['info-type'] == 'all'){ $query = "SELECT * FROM `tld` "; } But the script still fails. If i fully remove the IF statements and use the query without the WHERE clause like it is after the elseif, it works?

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  • Google maps and J-Query: Individual markers?

    - by user351189
    Hi there, I have created a Google maps mashup, where with a bit of input, I have managed to have a sidebar that links to a video icon/marker that then opens up an info window showing virtual tours. I would, however, like to put different coloured marker icons on the map depending on the category that the video is in. This would be easy enough to do, but my page is made up of a mixture of J-Query and JavaScript all calling to the individual flash files. Could someone help me with the code for adding extra marker icons for different categories? Here is the code: So, after the intial 'var camera;' point, there comes this: function addMarker(point, title, video, details) { var marker = new GMarker(point, {title: title, icon:camera}); GEvent.addListener(marker, "click", function() { if (details) { marker.openInfoWindowTabsHtml([new GInfoWindowTab("Video", video), new GInfoWindowTab("More", details)]); } else { marker.openInfoWindowHtml(video); } }); Then further down, is the code for calling the individual marker image. I would like to add another image to this list - would I start out by calling the new object 'camera-red.image' or something similar? function initialize() { if (GBrowserIsCompatible()) { map = new GMap2(document.getElementById("mapDiv")); map.setCenter(new GLatLng(51.52484592590448, -0.13345599174499512), 17); map.setUIToDefault(); var uclvtSatMapType = createUclVTSatMapType() map.addMapType(uclvtSatMapType); map.setMapType(uclvtSatMapType); camera = new GIcon(G_DEFAULT_ICON); camera.image = "ucl-video.png"; camera.iconSize = new GSize(32,37); camera.iconAnchor = new GPoint(16,35); camera.infoWindowAnchor = new GPoint(16,2); addMarkersToMap(); } The actual map can be found here: link text Thanks. Gray

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  • Hide elements for current visit only

    - by deanloh
    I need to display a banner that sticks to the bottom of the browser. So I used these codes: $(document).ready(function(){ $('#footie').css('display','block'); $('#footie').hide().slideDown('slow'); $('#footie_close').click(function(){ $('#footie_close').hide(); $('#footie').slideUp('slow'); }); }); And here's the HTML: <div id="footie"> {banner here} <a id="footie_close">Close</a> </div> I added the close link there to let user have the option to close the banner. How ever, when user navigates to next page, the banner shows up again. What can I do to set the banner to remained hidden just for this visit? In other words, as long as the browser remained open, the banner will not show up again. But if user returns to the same website another time, the banner should load again. Thanks in advance for any help!

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  • XSL - How to disable output escaping for an attribute?

    - by Kobi
    I've had the following <a> tag: <a href="http://myserver/_forms?url={@FileRef}&amp;id=5">...</a> One of the files is called "File's got apostrophe.xml". The output of the XSL is: <a href="http://myserver/_forms?url=/blah/File&amp;#39;s got apostrophe.xml&id=5">...</a> The problem is the the apostrophe is HTML-escaped (twice?) into &amp;#39;, which breaks the link. I've also tried using <xsl:attribute>, with same results: <a> <xsl:attribute name="href"> <xsl:value-of select="concat('http://myserver/_forms?url=', @FileRef, '&amp;id=5')" disable-output-escaping="yes" /> </xsl:attribute> </a> Outputting <xsl:value-of select="@FileRef" disable-output-escaping="yes" /> works well - the unescaped value is printed on the page. How can I set the attribute without escaping the string?

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  • expand floating object when floating object within expands

    - by Scarface
    Hey guys, quick question, I have a link when clicked drops down a list. This list is floated to the right to position it properly. This list is in another box that has been floated. My problem is that when the list expands, the box does not and the list comes out of the container box, unless the list is not floated. However floating it seems like the only way to get it to the position I want. If anyone has any ideas on how to solve this problem I would appreciate it. .container-box { margin-top:0px; float:left; padding-left:5px; position:relative; } #box-within { float:right; font-weight:bold; max-height:250px; display: none; background-color:#fff; overflow: auto; width:325px; padding:5px; position:relative; }

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  • How to iterate & retrieve values from NSArray of NSArrays of NSDictionaries

    - by chinjazz
    I'm stumpped on how iterate and get values for an Array of Arrays of NSDictionaries (different classes/entities). Here's what I'm currently doing: 1) Constructing two separate arrays of NSDictionaries (different entities) 2) Combining both arrays with: NSMutableArray *combinedArrayofDicts = [[NSMutableArray alloc] initWithObjects: sizesArrayOfDicts, wishListArrayOfDicts , nil]; 3) Then archive combinedArrayofDicts : NSData *dataToSend = [NSKeyedArchiver archivedDataWithRootObject:combinedArrayofDicts]; 4) Transmit over GameKit [self.session sendDataToAllPiers:dataToSend withDataMode: GKSendDataReliable error:nil]; 5) How would I manage traversing thru this array on the receiving end? I want to fetch values by for each class which is key'ed by classname: Here's how it looks via NSLog (2 Sizes Dicts, and 1 Wishlist Dict) Printing description of receivedArray: <__NSArrayM 0xbc65eb0>( <__NSArrayM 0xbc651f0>( { classname = Sizes; displayOrder = 0; share = 1; sizeType = Neck; value = "13\" or 33 (cm)"; }, { classname = Sizes; displayOrder = 0; share = 1; sizeType = Sleeve; value = "34\" or 86 (cm)"; } ) , <__NSArrayM 0xbc65e80>( { classname = Wishlist; detail = ""; displayOrder = 0; imageString = ""; latitude = "30.33216666666667"; link = "http://maps.google.com/maps?q=loc:30.332,-81.41"; longitude = "-81.40949999999999"; name = bass; share = 1; store = ""; } ) ) (lldb) In my for loop I'm issuing this: NSString *value = [dict objectForKey:@"classname"]; and get an exception: * Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[__NSArrayM objectForKey:]: unrecognized selector sent to instance 0xbc651f0' Is this frowned upon as far as mixing object types in arrays of arrays?

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  • JavaScript - Loop over all a tags, add an onclick to each one

    - by tripRev
    I've got a list of links that point to images, and a js function that takes a URL (of an image) and puts that image on the page when the function is called. I was originally adding an inline onlick="showPic(this.getAttribute('href'))" to each a, but I want to separate out the inline js. Here's my func for adding an onclick to each a tag when the page loads: function prepareLinks(){ var links = document.getElementsByTagName('a'); for(var i=0; i<links.length; i++){ var thisLink = links[i]; var source = thisLink.getAttribute('href'); if(thisLink.getAttribute('class') == 'imgLink'){ thisLink.onclick = function(){ showPic(source); return false; } } } } function showPic(source){ var placeholder = document.getElementById('placeholder'); placeholder.setAttribute('src',source); } window.onload = prepareLinks(); ...but every time showPic is called, the source var is the href of the last image. How can I make each link have the correct onclick?

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  • ruby on rails basics help

    - by CHID
    Hi, i created a scaffolded application in rails by the name of product. The product_controller.rb file contains the following. class ProductsController ApplicationController def new @product = Product.new respond_to do |format| format.html # new.html.erb format.xml { render :xml = @product } end end def create @product = Product.new(params[:product]) respond_to do |format| if @product.save flash[:notice] = 'Product was successfully created.' format.html { redirect_to(@product) } format.xml { render :xml = @product, :status = :created, :location = @product } else format.html { render :action = "new" } format.xml { render :xml = @product.errors, :status = :unprocessable_entity } end end end Now when the url http://localhost:3000/products/create is given Where new product link is clicked, control is transferred to new definition in the controller class and then an instance variable @product is created. BUT WHERE IS THIS VARIABLE PASSED? The funtion inturn calls new.rhtml which contains <% form_for(@product) do |f| % #all form elments declaration <% f.submit "Create" % <%= end % Here @product is initialized in the controller file and passed to this new.rhtml. So where does form_for(@product) gets the data? How does the control gets tranfered to create function in controller file when submit button is clicked? No where action is specified to the controller file. in the create function, wat does redirec_to(@product) specify where @product is an object received from the new.html file... I am very much confused on the basics of ROR. Somone pls help me clarify this. pardon me for making such a big post. I have lots of doubts in this single piece of code

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  • Booking logic and architecture, database sync: Hotels, tennis courts reservation system ...

    - by coulix
    Hello Stackers, Imagine that you want to design a tennis booking system. You have 5 tennis clubs as partenrs with no online api allowing you to check on their side if a court is booked or not: You have to build this part as well. Every time a booking is done on their side you want it to be know by our system. Probably using a POST request form tennis partner to our server. Every time a booking is done on our website, we want to push the booking to their system. The difficulty is that their system need to be online and accessible from outside. Ip may change, we have to use a dns updater. In case their system is not available we still accept the booking and fallback to an async email with 'i confirm booking/reject booking' link sent to the club. I find the whole process quite complex and was wondering about the way online hotel booking system and hotel were working. Do they all have their data open and online ? The good thing is that the data will grow large and fits nicely to some no SQL ;) like couch db

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  • Error with threads during automatic testing on TeamCity 5

    - by yeyeyerman
    Hello, I'm having some problems executing the tests of the application I'm developing. All the tests execute normally with ReSharper and in NCover. However, the execution of one of these tests in TeamCity is generating an error. This test initializes two objects, the object under test and a simulator of a real object. Both objects will communicate throug a serial link in a representation of the real scenario. ObjectSimulator r_simulator = new ObjectSimulator(...); ObjectDriver r_driver = new ObjectDriver(...); Assert.IsTrue(r_driver.Connect() == ErrorCode.Success); The simulator just do the following in the constructor public class ObjectSimulator { ... public ObjectSimulator() { // serial port configuration m_port = new SerialPort(); m_port.DataReceived += DataReceivedEvent; } ... } The main object has two threads. The main thread of the application and a timer to refresh a watchdog timer in the real object. public ErrorCode Connect() { ... StartSynchroTimer(); Thread.Sleep(4); // to check if the timer is working properly ... } The problem is comming from the Thread.Sleep() call, as when I remove it everything works. It seems like the ObjectSimulator also sleeps and doesn't receive the DataReceived event. How can I resolve this issue?

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  • jQuery Mobile: How to run a callback-function before $.mobile.changePage?

    - by Jugi84
    I'm setting up a mobile app with jQuery Mobile and PhoneGap. What I want to do is that when I click link with id "news_link" I want jQuery to fetch data from database and put it to jQm's collapsible set. In my solution, I've wanted to use $.mobile.changePage inside callback functions because I want to wait until the data has been fetched and put inside the container before the code changes page. Here's the code: $(function() { $('#news_link').click(function(){ loadNewsFromDB(function(){ $.mobile.changePage( $("#news"), { transition: "slideup"} ); }); }); loadNewsFromDB is PhoneGap's SQLite database function which would fetch the data with more callback functions from database. The contents would be put to desired container with .html-function function loadNewsFromDB(){ //some code here theDB.transaction(function(tx) { tx.executeSql(sqlStr, [], onLoadNewsSuccess, onLoadNewsError); },onTxError, onTxSuccess); function onLoadNewsSuccess(tx, results){ //some code here $("#newsSet").html(htmlCodeAndContentToPut); Html is jQm's basic ui-modules: <!-- some html code here --!> <div data-role="page" id="news"> <div data-role="content"> <div id="newsSet" data-role="collapsible-set" data-mini="true"> With debugging I know that the code work up until it works very well unti it arrives to $.mobile.changePage-function. Somehow it doesn't change the page. I've checked the function it works well in other occasions, but not inside callback-functions. I would be very grateful if someone would give me a hand am I not seeing something obviously wrong or is something more specific? What other workarounds there is for fetching the data from SQLite, waiting for data to be fetched, putting the data to container and then changing the pages?

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  • Need Help on JavaScript to Trim

    - by MacpaLtd
    I am facing some problems with my server space. The images are using all the space from the server, making it slow. As it is an eCommerce website, it cannot be slow or we lose customers. If I have the following: SKU's : ABC123-001 > catName > Phone ABC753-851 > catName > MAC AT1233-098 > catName > PC How can I use trim to make it the following: SKU's : 123 > catName > Phone 753 > catName > MAC 1233 > catName > PC Which I would use in the following script: <script type="text/javascript"> $(function(){ var sku = $("#ProductBreadcrumb ul li:last").text(); $(".ProductThumbImage img").attr('src','http://img.example.com/images/'+catName+'/'+sku+'.jpg'); }); </script> So, basically, the output for the picture link would be: http://img.example.com/images/phone/123.jpg http://img.example.com/images/mac/753.jpg http://img.example.com/images/pc/1233.jpg So yeah, first problem I have to face is.. How can I trim it? I am not familiar with JavaScript so any help would be really appreciated :D

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  • Socket stops communicating

    - by user1392992
    I'm running python 2.7 code on a Raspberry Pi that receives serial data from an Arduino, processes it, and sends it to a Windows box over a wifi link. The Pi is wired to a Linksys router running in client bridge mode and that router connects over wifi to another Linksys router to which the Windows box is wired. The code in the Pi runs fine for some (apparently) random interval, and then the Pi becomes unreachable from the Windows box. I'm running PUTTY on the the Windows machine to connect to the Pi and when the fail occurs I get a message saying there's been a network error and the Pi is not reachable. Pinging the Pi from the Windows machine works fine until the error, at which time it produces "Reply from 192.168.0.129: Destination host unreachable." The client bridge router to which the Pi is connected remains reachable. I've got the networking code on the Pi wrapped in an exception handler, and when it fails it shows the following: Ethernet problem: Traceback (most recent call last): File "garage.py", line 108, in module s.connect((host, port)) File "/usr/lib/python2.7/socket.py", line 224, in meth return getattr(self._sock,name)(*args) error: [Errno 113] No route to host None The relevant python code looks like: import socket import traceback host = '192.168.0.129' port = 31415 in the setup, and after serial data has been processed: try: bline = strline.encode('utf-8') s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) s.connect((host, port)) s.send(bline) s.close() except: print "Ethernet problem: " print traceback.print_exc() Where strline contains the processed data. As I said, this runs fine for a few hours more or less before failing. Any ideas? EDIT: When PUTTY fails its error message is :Network Error: Software caused connection abort."

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  • static initialization confusion

    - by Happy Mittal
    I am getting very confused in some concepts in c++. For ex: I have following two files //file1.cpp class test { static int s; public: test(){s++;} }; static test t; int test::s=5; //file2.cpp #include<iostream> using namespace std; class test { static int s; public: test(){s++;} static int get() { return s; } }; static test t; int main() { cout<<test::get()<<endl; } Now My question is : 1. How two files link successfully even if they have different class definitions? 2. Are the static member s of two classes related because I get output as 7. Please explain this concept of statics.

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  • gems, bundle command, and ruby not found in new terminal window

    - by user3579987
    So I installed ruby with rvm, ran a bundle install and installed a bunch of gems, etc. It all works just fine in the original terminal window I did all of this in but I opened up a new terminal window and now I'm getting errors like bundle: command not found and gem command not found. I tried doing a symbolic link for the gem command but then when I do gem list it displays a much shorter list of my local gems and not at all the ones I need for bundle install. Is there something I need to do to configure bash or rvm so that it recognizes that I did indeed install all the gems I have installed? name@crunchbang:~/ug_research_portal$ which gem /home/name/.rvm/rubies/ruby-2.1.1/bin/gem name@crunchbang:~/ug_research_portal$ which ruby /home/name/.rvm/rubies/ruby-2.1.1/bin/ruby And in ~/.bashrc: GEM_HOME="/home/name/.rvm/gems/ruby-2.1.1" GEMGLOBAL_HOME="/home/ name/.rvm/gems/ruby-2.1.1@global" export PATH=$PATH:$GEM_HOME/bin:$GEMGLOBAL_HOME/bin:$HOME/.rvm/bin Edit: Looks like my $PATH is somehow wrong? bash: /home/name/bin:/usr/sbin:/sbin:/usr/local/bin:/usr/bin:/bin:/usr/local/games:/usr/games:/home/name/.rvm/gems/ruby-2.1.1/bin:/home/name/.rvm/gems/ruby-2.1.1@global/bin:/home/name/.rvm/bin/: No such file or directory which is odd since ls for /home/name/.rvm/bin and /home/name/.rvm/gems/ruby-2.1.1@global/bin and /home/name/.rvm/gems/ruby-2.1.1/bin work just fine Psych, I was just doing $PATH instead of echo "$PATH" which was giving me the No such file or directory error. The original problem still stands though.

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  • DLL Export C/C++ 6.00 function invoked by VB6

    - by nashth
    Hi all, I have been attemptng to create a DLL with C/C++ that can be accessed by VB6, and that's right I get error "453 Can't find DLL entry point myFunctionName in myDllName.dll" upon calling the function from a VB6 app. After searching the Web, including this site, I see that I am not alone, and I have tried the various solutions posted but error "453" is unexcapable. This is Not a COMM dll, and I believe that is possible when created via C/C++. In any case, please help, if you can. Please refer to the following simple test case below: The DLL created as a C/C++ 6.00 Win32 Dynamic-Link Library: #include // Note that I did try the line below rather than the def file, but to no avail... // #pragma comment(linker, "/EXPORT:ibask32=_ibask32@0") // Function definition extern "C" int __declspec(dllexport) __stdcall ibask32() { MessageBox(NULL,"String","Sample Code", NULL); return 0L; } The def file: LIBRARY "Gpib-32" EXPORTS ibask32 Now for the VB App: The following is the entire content of the startup Form1, Form_Load Option Explicit Private Sub Form_Load() Call ibask End Sub The following is a BAS module file that is added to the project: Option Explicit Declare Function ibask32 Lib "Gpib-32.dll" Alias "ibask" () As Long Sub ibask() Call ibask32 ' Note: This is the point of failure End Sub Thanks in advance if a workable solution can be provided, Tom

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  • When destroying one record, another one gets destroyed

    - by normalocity
    Products (like an iPod Classic) :has_many = :listings, :dependent = :destroy Listings (like "My name is Joe, and I have an iPod for sale) :belongs_to = :product So, if I delete a given Product, all the listings that point to it get deleted. That makes sense, and is by design. However, I am writing a "merge" function, where you merge two Products into one, and combine their Listings. So, let's say my two products are "iPod Color" and "iPod Classic", and I want to merge the two. What I want to do is say, "iPod Color, merge into iPod Classic", and result should be that: All the iPod Color Listings are re-pointed to the iPod Classic product After the product_id change, the Listing(s) are saved I then delete the "iPod Color" product Well, that should all work fine, without deleting any Listings. However, I've got this controller, and for whatever reason when I destroy the "iPod Color" Product, even after confirming that the Listings have been moved to "iPod Classic" and saved to the database, the Listings that were previously pointed to "iPod Color" get destroyed as well, and I can't figure out why. It's as if they are retaining some kind of link to the destroyed product, and therefore begin destroyed themselves. What painfully obvious thing am I missing? def merge merging_from = Product.find(params[:id]) merging_to = Product.find_by_model(params[:merging_to]) unless merging_to.nil? unless merging_from.nil? unless merging_from == merging_to # you don't want to merge something with itself merging_from.listings.each do |l| l.product = merging_to l.save end # through some debugging, I've confirmed that my missing Listings are disappearing as a result of the following destroy call merging_from.destroy end end end

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  • What is PocoCapsule current status?

    - by seas
    What is PocoCapsule current status? Is it evolving? Has it been forked with some other product? What is about the whole idea of IoC for C++? If PocoCapsule is not evolving, is it because IoC was considered not useful for C++, unsafe, other patterns appeared or something else? As far as I understand there are 2-3, maybe few more products, that implement IoC for C++, available and PocoCapsule is the most mature of them. I see several disadvantages in current version (as I see it's 1.1 from google code): No separate namespace. Header files are required to be right in INCLUDE folder - better to place them in subfolder. Generation Tools depend on Java. No static linking libraries are built by default. Cannot generate source code out of setup.xml for compilation and link with my app if I don't need reconfiguration feature. Does anybody have the same thoughts? Does anybody work on something of this list? Are there any barriers to start working, like patents?

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  • Qt display image in a new window

    - by user312543
    Hi, I am naive to Qt and GUI programming. http://stackoverflow.com/questions/1357960/qt-jpg-image-display/2605463#2605463 The procedure given for displaying an image is working fine and thank you for providing that. But I want to display an image when I click on radiobutton. I created a slot, and I connected the button click event to the slot (dispImage is my slot). My slot consists only the code which is working to display an image (First answer in this link). I am able to compile it and run it. But the o/p is not as we desire. On button click, image windoe flashes for a sec and disappears. One more point to share is, I tried the same with windowsflags example present in qt examples. In this example I want to display the image on the preview window created by us. Even this is also not worked for me. Please provide me the solution. Thanks in advance.

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