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  • XMLHttpRequst return null on Chrome

    - by BoltBait
    I have the following code that works fine in IE: <HTML> <BODY> <script language="JavaScript"> text=""; req = new XMLHttpRequest(); if (req) { req.onreadystatechange = processStateChange; req.open("GET", "http://www.boltbait.com", true); req.send(); } function processStateChange() { // is the data ready for use? if (req.readyState == 4) { // process my data alert(req.status); alert(req.responseText); } } </script> </BODY> </HTML> In IE, the first alert returns 200, the second returns the web page. However, in Chrome the first alert returns 0 and the second returns the empty string. My intent is to grab a web page into a string for processing. If I'm not doing this right, how should I be doing this? Thanks.

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  • Display: table-cell problems in chrome

    - by F21
    I have 3 divs that I would like to display as table cells: <div class="field"> <div class="row"> <label for="name">Subdomain</label> <input type="text" id="name" name="name"> <div class="subdomain-base ">test</div> </div> </div> This is the CSS that I am using: body{ font-size: 13px; } .field { width:450px; display: table; } .row { display: table-row; width: 100%; } .row > * { display: table-cell; border: 1px solid red; } label { width: 125px; height: 18px; } input { max-width: none; min-width: 0; overflow: auto; height: 18px; width: 100%; } .subdomain-base { height: 18px; width: 1px; } .subdomain-base { color: blue; font-size: 13px; } It works perfectly in Firefox 24: However, it has a height problem in Chrome 30 (latest): I have been trying all sorts of things to fix the problem with Chrome, but it seems like nothing works. Why is chrome getting that extra height? Jsfiddle: http://jsfiddle.net/ahLMH/

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  • Query for model by key

    - by Jason Hall
    What I'm trying to do is query the datastore for a model where the key is not the key of an object I already have. Here's some code: class User(db.Model): partner = db.SelfReferenceProperty() def text_message(self, msg): user = User.get_or_insert(msg.sender) if not user.partner: # user doesn't have a partner, find them one # BUG: this line returns 'user' himself... :( other = db.Query(User).filter('partner =', None).get() if other: # connect users else: # no one to connect to! The idea is to find another User who doesn't have a partner, that isn't the User we already know. I've tried filter('key !=, user.key()), filter('__key__ !=, user.key()) and a couple others, and nothing returns another User who doesn't have a partner. filter('foo !=, user.key()) also returns nothing, for the record.

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  • How do I keep track of the session for each servlet request, until I use it? Singletons wont work?

    - by corgrath
    For each servlet request I get, I pass, perhaps, 10 methods before I am at where I need to check something in the session and I need the HttpSession. The only way I can get the HttpSession is from the HttpServletRequest, correct? How do I keep track of the session for each servlet request? Unfortuantly I cannot simple make a singleton (ex, SessionInformation.instance().getAttribute("name")) because that session would then be used over all requests. Is there a way to store the session globally for each request without having to pass it (or it's information) down all the methods just in case I need it?

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  • Extract files from zip folder and store these files in blobstore

    - by Eng_Engineer
    i want to upload zip folder from file input in form the i want to extract the contents of this uploaded zip folder,and store the contents (files)of this zip in the blobstore in order to download them after putting these files in one folder,but the problem is that i can't deal with the zip folder directly(to read it), i tried as this: form = cgi.FieldStorage() file_upload = form['file'] zip1=file_upload.filename zipstream=StringIO.StringIO(zip1.read()) But the problem still that i can't read the zip as previous,also i tried to read zip folder directly like this: z1=zipfile.ZipFile(zip1,"r") But there was an error in this way.Please can any one help me.Thanks in advance.

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  • Android JSon Array is not working with Maplocations class

    - by user1505962
    I am developing a map application in android i have made maplocation class to pass latitude and longitude and using Json Array to fetch data from MYSQl to display in map.But When I run application it crashed unfortunantely here is my log cat 07-07 14:02:26.423: E/AndroidRuntime(366): FATAL EXCEPTION: main 07-07 14:02:26.423: E/AndroidRuntime(366): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.icons.draw.view/com.icons.draw.view.DrawIcons}: android.view.InflateException: Binary XML file line #6: Error inflating class com.icons.draw.view.LocationViewers 07-07 14:02:26.423: E/AndroidRuntime(366): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1647) 07-07 14:02:26.423: E/AndroidRuntime(366): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1663) 07-07 14:02:26.423: E/AndroidRuntime(366): at android.app.ActivityThread.access$1500(ActivityThread.java:117) 07-07 14:02:26.423: E/AndroidRuntime(366): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:931) 07-07 14:02:26.423: E/AndroidRuntime(366): at android.os.Handler.dispatchMessage(Handler.java:99) 07-07 14:02:26.423: E/AndroidRuntime(366): at android.os.Looper.loop(Looper.java:130) 07-07 14:02:26.423: E/AndroidRuntime(366): at android.app.ActivityThread.main(ActivityThread.java:3683) 07-07 14:02:26.423: E/AndroidRuntime(366): at java.lang.reflect.Method.invokeNative(Native Method) 07-07 14:02:26.423: E/AndroidRuntime(366): at java.lang.reflect.Method.invoke(Method.java:507) 07-07 14:02:26.423: E/AndroidRuntime(366): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839) 07-07 14:02:26.423: E/AndroidRuntime(366): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597) 07-07 14:02:26.423: E/AndroidRuntime(366): at dalvik.system.NativeStart.main(Native Method) 07-07 14:02:26.423: E/AndroidRuntime(366): Caused by: android.view.InflateException: Binary XML file line #6: Error inflating class com.icons.draw.view.LocationViewers 07-07 14:02:26.423: E/AndroidRuntime(366): at android.view.LayoutInflater.createView(LayoutInflater.java:518) 07-07 14:02:26.423: E/AndroidRuntime(366): at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:570) 07-07 14:02:26.423: E/AndroidRuntime(366): at android.view.LayoutInflater.rInflate(LayoutInflater.java:623) 07-07 14:02:26.423: E/AndroidRuntime(366): at android.view.LayoutInflater.inflate(LayoutInflater.java:408) 07-07 14:02:26.423: E/AndroidRuntime(366): at android.view.LayoutInflater.inflate(LayoutInflater.java:320) 07-07 14:02:26.423: E/AndroidRuntime(366): at android.view.LayoutInflater.inflate(LayoutInflater.java:276) 07-07 14:02:26.423: E/AndroidRuntime(366): at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:207) 07-07 14:02:26.423: E/AndroidRuntime(366): at android.app.Activity.setContentView(Activity.java:1657) 07-07 14:02:26.423: E/AndroidRuntime(366): at com.icons.draw.view.DrawIcons.onCreate(DrawIcons.java:16) 07-07 14:02:26.423: E/AndroidRuntime(366): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047) 07-07 14:02:26.423: E/AndroidRuntime(366): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1611) 07-07 14:02:26.423: E/AndroidRuntime(366): ... 11 more 07-07 14:02:26.423: E/AndroidRuntime(366): Caused by: java.lang.reflect.InvocationTargetException 07-07 14:02:26.423: E/AndroidRuntime(366): at java.lang.reflect.Constructor.constructNative(Native Method) 07-07 14:02:26.423: E/AndroidRuntime(366): at java.lang.reflect.Constructor.newInstance(Constructor.java:415) 07-07 14:02:26.423: E/AndroidRuntime(366): at android.view.LayoutInflater.createView(LayoutInflater.java:505) 07-07 14:02:26.423: E/AndroidRuntime(366): ... 21 more 07-07 14:02:26.423: E/AndroidRuntime(366): Caused by: java.lang.NullPointerException 07-07 14:02:26.423: E/AndroidRuntime(366): at org.json.JSONTokener.nextCleanInternal(JSONTokener.java:112) 07-07 14:02:26.423: E/AndroidRuntime(366): at org.json.JSONTokener.nextValue(JSONTokener.java:90) 07-07 14:02:26.423: E/AndroidRuntime(366): at org.json.JSONArray.<init>(JSONArray.java:87) 07-07 14:02:26.423: E/AndroidRuntime(366): at org.json.JSONArray.<init>(JSONArray.java:103) 07-07 14:02:26.423: E/AndroidRuntime(366): at com.icons.draw.view.LocationViewers.getMapLocations(LocationViewers.java:102) 07-07 14:02:26.423: E/AndroidRuntime(366): at com.icons.draw.view.LocationViewers.init(LocationViewers.java:65) 07-07 14:02:26.423: E/AndroidRuntime(366): at com.icons.draw.view.LocationViewers.<init>(LocationViewers.java:45) 07-07 14:02:26.423: E/AndroidRuntime(366): ... 24 more And Here is My JSOn Array and loop code to make markers double LAT; double LANG; String INFO; public List<MapLocation> getMapLocations() { if (mapLocations == null) { try{ jArray = new JSONArray(result); JSONObject json_data=null; for(int i=0;i<jArray.length();i++){ json_data = jArray.getJSONObject(i); LAT=json_data.getDouble("lat"); LANG=json_data.getDouble("lang"); INFO=json_data.getString("info"); mapLocations = new ArrayList<MapLocation>(); mapLocations.add(new MapLocation(INFO,LAT,LANG)); } } catch(JSONException e1){ Toast.makeText(getContext(), "No Vehicles Found" ,Toast.LENGTH_LONG).show(); } catch (ParseException e1) { e1.printStackTrace(); } } return mapLocations; } Please Help to Remove this error

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  • Why Firebug Sucks At Real Time Html Editing?

    - by David
    Hi, i always like to real-time edit a web page source in the browser and updated as i type, but firebug really sucks, i can't insert scripts in the current page, some times the changes i type aren't updated at all, Is there any robust firefox/chrome extension for that? i try to temporarely edit/add code to an existing web page in the internet, not a local one Thanks

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  • Will dynamicaly generated content via Javascript hurt SEO

    - by Luke101
    This is what I would like to do. I would like to load content dynamically. Everything except the actual content will be rendered by javascript. I will place all the require information in a javascript variable or array at the bottom of the page. Then I will use javascript to place the content in the designated area. These are the types of things I would like javascript to render: Login menu Header and logo info Side bar info Footer info Dialog popups Ads All of the MEAT content will not be rendered by javascript. I will use the backend server to put the content in html. My logic is that more of the real content will be in HTML and all the other things will be rendered by javascript. Will this help or hurt SEO?

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  • stumped on jquery call inside chrome extension

    - by phil swenson
    In my chrome extension I call this: jsonPost = { email:"[email protected]", password:"demo", content: $('#selected_text').val(), notification_type: $('#notification_type').val(), name:$('#notification_name').val() } $.post('http://localhost:3000/api/create.json', jsonPost, function (data) { console.log("type of data = " + typeof(data)); console.log("data in function = " + data); } The data makes it to the server. But the response is lost, in the console ---type of data = String ---data in function = So for some reason I am not getting the response back. Works from the browser. I even tried doing a get against cnn.com and got no response. any ideas? thanks

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  • App Engine Django Form Uniqueness Validation?

    - by GeekTantra
    Is there a simpler way to use uniqueness validation with Django Forms in AppEngine? I understand that performance would be problem if we keep an uniqueness constraint but since the amount of data being added is very small performance is not a big concern, rather development time is a concern here. Any help is appreciated.

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  • Tablesorter Pager not working in Safari or Chrome

    - by Zendog74
    Hi all. I am building an app using the tablesorter plug-in and it's pager plug-in. Things work perfectly fine in Firefox and IE, but in Safari (4.0.4 on a PC) and Chrome () I get errors when it hits the following code that binds the tablesorter pager. I took the pager binding out and it worked, so something is going wrong somewhere in those three lines of code. var tableSel = calendarportlet.ut.createIdSelector(calendarportlet.addNamespace("eventListTable")); var pagerSel = calendarportlet.ut.createIdSelector(calendarportlet.addNamespace("pager")); jQuery(tableSel).tablesorter({ widthFixed: true, headers: { 0: {sorter: false} }, sortList:[[2,1],[1,0]], widgets: ['zebra'] }).tablesorterPager({ <-- error happens in here container: jQuery(pagerSel), positionFixed: false }); Also, the errors only happen in Safari and Chrome when prototype.js is loaded AFTER jQuery. If they are loaded before jQuery, it works fine. However, this is a portlet and it has to play nice with other portlets, so we don't want to modify the header and loading order of the js libs. Anyone have any ideas on how to fix this?

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  • iPhone dev - showing two locations on the map

    - by Brian
    Now I have the coordinate of two locations, let say locationA with latitude 40 and longitude -80, locationB with latitude 30 and longitude -70, I want to create a mapView that I can see both locations with appropriate viewing distance. I got the new coordinate by finding the midpoint (in this example, {35, -75}), but the question is, How can I get an appropriate viewing distance? In particular, how can I calculate CLLocationDistance (if I'm using MKCoordinateRegionMakeWithDistance) or MKCoordinateSpan (if I'm using MKCoordinateSpanMake). Thanks in advance.

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  • Webkit browsers rendering CSS different than Mozilla Firefox...Why??

    - by JAG2007
    I'm styling a form that was already marked up (made some markup changes), and I normally work in Firefox to style so I can use firebug and the web developer toolbar. On this project, I noticed that my styles are displaying quite differently for one particular area (several elements) in webkit based browsers Chrome and Safari, than in Firefox (we won't even get into Internet Explorer, although it is siding with the Firefox display). I can't figure out though why the styles are displaying so differently. Normally there is some rule that I'm neglecting that Firefox just takes for granted, and the others need it specified. But here I'm not getting why it's displaying this way. In particular I'm referring to the bottom area of the form where users can enter their contact info, then submit the form. I'll attach screen shots for reference as to the discrepancy. Here's the URL so feel free to check it out on your own. Although be advised that this is a production page (already released) so if you try out the form, you WILL BE added to CURE's contact database. http://www.helpcurenow.org/survey2010 Here's the screen shots: Firefox (the way I intend it to look) Chrome, and then Safari - strange change to submit button As a bonus, if anybody wants to help me with figuring out why on earth IE7 wants to not show the background behind the questions only, and how to fix that I would be much obliged! Thanks very much.

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  • How to test my GAE site for performance

    - by Sergey Basharov
    I am building a GAE site that uses AJAX/JSON for almost all its tasks including building the UI elements, all interactions and client-server requests. What is a good way to test it for highloads so that I could have some statistics about how much resources 1000 average users per some period of time would take. I think I can create some Python functions for this purpose. What can you advise? Thanks.

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  • Recommendations with hierarchical data on non-relational databases?

    - by Luki
    I'm developing an web application that uses a non-relational database as a backend (django-nonrel + AppEngine). I need to store some hierarchical data (projects/subproject_1/subproject_N/tasks), and I'm wondering which pattern should I use. For now I thought of: Adjacency List (store the item's parent id) Nested sets (store left and right values for the item) In my case, the depth of nesting for a normal user will not exceed 4-5 levels. Also, on the UI, I would like to have a pagination for the items on the first level, to avoid to load too many items at the first page load. From what I understand so far, nested sets are great when the hierarchy is used more for displaying. Adjacency lists are great when editing on the tree is done often. In my case I guess I need the displaying more than the editing (when using nested sets, even if the display would work great, the above pagination could complicate things on editing). Do you have any thoughts and advice, based on your experience with the non-relational databases?

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  • Webkit browser jQuery transformations/transitions not working with jSplitSlider

    - by user3689793
    I am helping to build a site and i'm having an issue with the functionality of an add-in called jsplitslider when running it in chrome. Right now, when I navigate between the slides, the div's get stuck on top of each other and never clear the webkit transformations/animations: <div class="sl-content-slice" style="transition: all 800ms ease-in-out; -webkit-transition: all 800ms ease-in-out;"> I think the problem is due to timing of the functions, but I can't seem to figure out where I would need to add a setTimeout(). I only think this because I exhausted a lot of the other options like display: inline-block, notransitions css, etc. I'm desperate to figure out how to make this work in chrome. It works in FF and IE(surprisingly enough). I'm not great at webcoding, so any help will be appreciated! The code on the site isn't minimized. Here is the jQuery where I think the problem lies: var cssStyle = config.orientation === 'horizontal' ? { marginTop : -this.size.height / 2 } : { marginLeft : -this.size.width / 2 }, // default slide's slices style resetStyle = { 'transform' : 'translate(0%,0%) rotate(0deg) scale(1)', opacity : 1 }, // slice1 style slice1Style = config.orientation === 'horizontal' ? { 'transform' : 'translateY(-' + this.options.translateFactor + '%) rotate(' + config.slice1angle + 'deg) scale(' + config.slice1scale + ')' } : { 'transform' : 'translateX(-' + this.options.translateFactor + '%) rotate(' + config.slice1angle + 'deg) scale(' + config.slice1scale + ')' }, // slice2 style slice2Style = config.orientation === 'horizontal' ? { 'transform' : 'translateY(' + this.options.translateFactor + '%) rotate(' + config.slice2angle + 'deg) scale(' + config.slice2scale + ')' } : { 'transform' : 'translateX(' + this.options.translateFactor + '%) rotate(' + config.slice2angle + 'deg) scale(' + config.slice2scale + ')' }; if( this.options.optOpacity ) { slice1Style.opacity = 0; slice2Style.opacity = 0; } // we are adding the classes sl-trans-elems and sl-trans-back-elems to the slide that is either coming "next" // or going "prev" according to the direction. // the idea is to make it more interesting by giving some animations to the respective slide's elements //( dir === 'next' ) ? $nextSlide.addClass( 'sl-trans-elems' ) : $currentSlide.addClass( 'sl-trans-back-elems' ); $currentSlide.removeClass( 'sl-trans-elems' ); var transitionProp = { 'transition' : 'all ' + this.options.speed + 'ms ease-in-out' }; // add the 2 slices and animate them $movingSlide.css( 'z-index', this.slidesCount ) .find( 'div.sl-content-wrapper' ) .wrap( $( '<div class="sl-content-slice" />' ).css( transitionProp ) ) .parent() .cond( dir === 'prev', function() { var slice = this; this.css( slice1Style ); setTimeout( function() { slice.css( resetStyle ); }, 150 ); }, function() { var slice = this; setTimeout( function() { slice.css( slice1Style ); }, 150 ); } ) .clone() .appendTo( $movingSlide ) .cond( dir === 'prev', function() { var slice = this; this.css( slice2Style ); setTimeout( function() { $currentSlide.addClass( 'sl-trans-back-elems' ); if( self.support ) { slice.css( resetStyle ).on( self.transEndEventName, function() { self._onEndNavigate( slice, $currentSlide, dir ); } ); } else { self._onEndNavigate( slice, $currentSlide, dir ); } }, 150 ); }, function() { var slice = this; setTimeout( function() { $nextSlide.addClass( 'sl-trans-elems' ); if( self.support ) { slice.css( slice2Style ).on( self.transEndEventName, function() { self._onEndNavigate( slice, $currentSlide, dir ); } ); } else { self._onEndNavigate( slice, $currentSlide, dir ); } }, 150 ); } ) .find( 'div.sl-content-wrapper' ) .css( cssStyle ); $nextSlide.show(); }, _validateValues : function( config ) { // OK, so we are restricting the angles and scale values here. // This is to avoid the slices wrong sides to be shown. // you can adjust these values as you wish but make sure you also ajust the // paddings of the slides and also the options.translateFactor value and scale data attrs if( config.slice1angle > this.options.maxAngle || config.slice1angle < -this.options.maxAngle ) { config.slice1angle = this.options.maxAngle; } if( config.slice2angle > this.options.maxAngle || config.slice2angle < -this.options.maxAngle ) { config.slice2angle = this.options.maxAngle; } if( config.slice1scale > this.options.maxScale || config.slice1scale <= 0 ) { config.slice1scale = this.options.maxScale; } if( config.slice2scale > this.options.maxScale || config.slice2scale <= 0 ) { config.slice2scale = this.options.maxScale; } if( config.orientation !== 'vertical' && config.orientation !== 'horizontal' ) { config.orientation = 'horizontal' } }, _onEndNavigate : function( $slice, $oldSlide, dir ) { // reset previous slide's style after next slide is shown var $slide = $slice.parent(), removeClasses = 'sl-trans-elems sl-trans-back-elems'; // remove second slide's slice $slice.remove(); // unwrap.. $slide.css( 'z-index', 10 ) .find( 'div.sl-content-wrapper' ) .unwrap(); // hide previous current slide $oldSlide.hide().removeClass( removeClasses ); $slide.removeClass( removeClasses ); // now we can navigate again.. this.isAnimating = false; this.options.onAfterChange( $slide, this.current ); }, Sorry if I missed any conventions when posting, this is my first S.O. post. Thanks in advance for any help.

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  • Appengine JDO dataclasses to python model

    - by M.A. Cape
    Does anyone have tried to implement an app in GAE having both java and python? I have an existing app and my front end is in java. Now I want to use the existing datastore to be interfaced by python. My problem is i don't know how to define the relationships and model that would be equivalent to the one in java. I have tried the one-to-many relationship in python but when stored in the datastore, the fields are different than the one-to-many of java. My data classes are as follows. //one-to-many owned Parent Class public class Parent{ @PrimaryKey @Persistent private String unitID; //some other fields... @Persistent @Order(extensions = @Extension(vendorName="datanucleus", key="list-ordering", value="dateCreated desc")) private List <Child> child; //methods & constructors were omitted } Child public class Child{ @PrimaryKey @Persistent(valueStrategy = IdGeneratorStrategy.IDENTITY) private Key uId; @Persistent private String name; /* etc... */ }

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  • Vertically center CSS techniques don't work in Chrome

    - by at.
    I've gone through stackoverflow questions and a whole bunch of articles on vertically centering text like the following: http://blog.themeforest.net/tutorials/vertical-centering-with-css/ None of the techniques seem to work with the latest version of Chrome. Is that just the nature of Chrome? My text just always appears at the top. It seems that whenever I use 50% or 100% as values for CSS's height or top, nothing happens. I just need a single line of text vertically centered. line-height isn't helpful because I want it centered in the middle of the browser window... I don't know how tall the browser window is going to be. UPDATE: The problem is apparently Foundation 4. Once I delete the following everything works as expected: <link href="/assets/foundation_and_overrides.css?body=1" media="screen" rel="stylesheet" /> Any idea on how to make it work with Foundation 4?

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