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  • HttpsURLConnection failing intermittently to the same URL

    - by Arkaitz Jimenez
    I think I'm experiencing the same as http://groups.google.com/group/android-developers/msg/9d37d64aad0ee357 This is Android 1.5 SDK. I happen to call several times below code(which is in a method) with the same url and it fails intermittently. When it fails, there is no exception, the stream is empty so the readConnection fails, and getResponseCode returns -1. Global caching is disabled, setDefaultUseCaches(false); I suppose there must be some kind of url connection object pool somewhere. Any idea on how can I workaround this? HttpURLConnection connection = null; try { URL url = new URL(this.url); connection = (HttpURLConnection) url.openConnection(); connection.setRequestProperty("Authorization", "basic " + Base64Coder.encodeString(user + ":" + password)); connection.setRequestProperty("User-Agent", userAgent); connection.connect(); readConnection(connection.getInputStream()); connection.disconnect(); } catch (IOException ex) { reportException(ex, connection.getResponseCode()) } catch (ParserException ex) { reportException(ex, connection.getResponseCode()) }

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  • Human readable URL causes a problem in Ruby on Rails

    - by TK
    I have a basic CRUD with "Company" model. To make the company name show up, I did def to_param name.parameterize end Then I accessed http://localhost:3000/companies/american-express which runs show action in the companies controller. Obviously this doesn't work because the show method is as following: def show @company = Company.find_by_id(params[:id]) end The params[:id] is american-express. This string is not stored anywhere. Do I need to store the short string (i.e., "american-express") in the database when I save the record? Or is there any way to retrieve the company data without saving the string in the database?

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  • Run java with highest security setting

    - by Ankiov Spetsnaz
    I'm currently writing an in house coding challenge web application and I am wondering if there is any other security precaution I would need to have other than below java option at runtime. java -Djava.security.manager=default Basically, challenges would be more of single threaded math and algorithm focused. So I would need to enable basic data structure objects and disable any file, sockets, threading or any thing that might be not so important. Based on my quick search turning on security manager as above seems to be a solution but since this is a security related I would like to be sure before it goes alive. Is there anything else I could do more?

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  • Using Django view variables inside templates

    - by William
    Hi, this is a rather basic question (I'm new to Django) but I'm having trouble using a variable set in my view inside my template. If I initialize a string or list inside my view (i.e. h = "hello") and then attempt to call it inside a template: {{ h }} there is neither output nor errors. Similarly, if I try to use a variable inside my template that doesn't exist: {{ asdfdsadf }} there is again no error reported. Is this normal? And how can I use my variables within my templates. Thanks!

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  • Securing a REST API

    - by Christopher McCann
    I am in the middle of developing a REST API - the first one I ever have. The data being passed through the API is not of such a critical nature that there will be loss of life, economics etc if it was intercepted but at the same time I would like it to be secure. The data being transferred is simply like the data that would be transferred on Twitter or Facebook - not overly confidential but still should be kept private. What is the best way to secure this data? Am I best to use HTTP Basic Auth over SSL or should I be looking into something like OAuth. I have never really used REST much before so bit of a first for me. Thanks

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  • No-argument method on window.external is invoked when checking with typeof

    - by janko
    Hi, I am trying to display an HTML page with embedded JavaScript code inside a System.Windows.Forms.WebBrowser control. The JavaScript code is expected to interact with the embedding environment through the window.external object. Before invoking a method on window.external, JavaScript is supposed to check for the existance of the method. If it is not there, the code should invoke a generic fallback method. // basic idea if (typeof(window.external.MyMethod) != 'undefined') { window.external.MyMethod(args); } else { window.external.Generic("MyMethod", args); } However, checking for a no-argument method with typeof seems to invoke the method already. That is, if MyMethod accepts any positive number of arguments, the code above will work perfectly; but, if MyMethod is a no-argument method, then the expression typeof(window.external.MyMethod) will not check for its type but invoke it, too. Is there any work-around to this behavior? Can I somehow escape the expression window.external.MyMethod to prevent the method call from occurring?

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  • WPF WebBrowser - How to Zoom Content?

    - by Beems
    Trying to test basic browser concepts in a WPF (C#/XAML, .NET 4.0) WebBrowser application. So far, the only problem is programatically zooming. Has anyone had any experience with this? MSDN lists nothing: http://msdn.microsoft.com/en-us/library/system.windows.controls.webbrowser.aspx Additionally, I have tried various things such as RenderTransform options to no avail. Either this is not possible or not documented. I'm hoping for the latter. Note that a WinForm solution isn't acceptable. Thanks in advance for any help, Beems

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  • Produce a script to hit Google once a day and log our position in the results?

    - by hawbsl
    The need has arisen within our organisation to monitor (on a daily basis) where our site appears (both organic and PPC) on the page 1 of Google. Also where a key competitor appears. For certain key words. In the immediate short term a colleague is doing this by hitting Google manually and jotting down the results. Yep. It occurs to us we can write a script (e.g. using C#) to do this. I know Analytics will tell us an awful lot but it doesn't note the competitor's position, plus I don't think it has other data we want. Question is, is there an existing basic tool which does this (for free, I guess)? And if we write it ourselves, where to start and are there obvious pitfalls to avoid (for example can Google detect and block automated requests?)

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  • How to get ListView to grow to the size of content

    - by Jared
    So I have a fairly complex activity the parent being a linearlayout with a table with some basic info and buttons. Then a couple listviews that the user can add items to. So these listviews grow more and more as the user uses the app. The problem I'm running into is the Linearlayout is bigger then the resolution of the screen and so it needs to scroll. So the scrolling doesn't work on the Listviews. I've tried playing with changing the layout_height of the listview and its child element with no success. Is there a way to make these couple listviews expand out to the amount of children? Or am I going about this all wrong? If so what other controls can I use? I'm open to any ideas. I really just don't know how to go about this. Thanks

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  • filter log file by defining regexes

    - by fmpdmb
    I have some HUGE log files (50Mb; ~500K lines) I need to start filtering some of the crap out of. The log files are being produced using log4j and have the basic pattern of: [log-level] date-time class etc, etc log-message I'm looking for a way that I can identify a regex start and regex end (or something similar) that will filter out the matching entries from the file so I can more easily wade through these massive files. I'm sure I could write a java program to accomplish this task, but I thought I'd ask the community before going down that path. Thanks in advance.

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  • SQL script to show addition to tables

    - by andreas
    Hey all I have a 2 MS SQL 2005 databases,a TEST and DEV database. Now our developer added some extra columns,tables etc in the DEV database.This created differences in the TEST database.is there a script i can write tha can tell me what the changes where in the DEV database between certain dates...i found a couple of tools but they are quite basic and dont really generate change scripts etc. Also tried the change script function in management studio but it seems to be working when the change is first made and not later. Appreciate your thoughts. A.

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  • Updating display of elements on the web page without refreshing the whole page

    - by ivorossi3
    Last time I coded a web application was almost 10 years ago. I used Java/JSP/HTML/CSS etc. I've been coding non-web applications only ever since. When I look at modern sites now (like this one), I realize how my web development skills are obsolete. Maybe the most obvious "feature" that I wouldn't know how to implement now is the update of elements on the page after user input without having to refresh the whole page (e.g. the voting/downvoting here updates the vote count without reloading the whole page). What are the basic technologies behind this?

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  • How to change PHP's eregi to preg_match

    - by jasondavis
    I need help, below is a small VERY basic regex to somewhat validate an email, I do realize it does not work the greatest but for my needs it is ok for now. It currently uses PHP's eregi function which php.net says is now a depreciated function and I should use preg_match instead, simply replacing erei with preg_match does not work, can someone show me how to make it work? function validate_email($email) { if (!eregi("^[[:alnum:]][a-z0-9_.-]*@[a-z0-9.-]+\.[a-z]{2,4}$", $email)) { echo 'bad email'; } else { echo 'good email'; } } function validate_email($email) { if (!preg_match("^[[:alnum:]][a-z0-9_.-]*@[a-z0-9.-]+\.[a-z]{2,4}$", $email)) { echo 'bad email'; } else { echo 'good email'; } }

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  • Entity framework using Data Repository pattern

    - by JamesStuddart
    Hi all, I have been implementing a new project which I have decided to use the repository pattern and Entity Framework. I have sucessfuly implemented basic CRUD methods and I have no moved onto my DeepLoads. From all the examples and documentation I can find to do this I need to call something like this: public Foo DeepLoadFoo() { return (from foobah in Context.Items.Include("bah").Include("foo").Include("foofoo") select foo).Single(); } This doesnt work for me, maybe I am trying to be too lazy but what I would like to achieve would be something along the lines of this: public Foo DeepLoadFoo(Foo entity, Type[] childTypes) { return (from foobah in Context.Items.Include(childTypes).Single(); } Is anything like this possible, or am I stuck with include.include.include.include? Thanks

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  • iPhone MVC Question

    - by HM1
    Hi, I'm bit of a newbie and had a basic question regarding adhering to the MVC model in iPhone coding. How do I setup a Model class that holds my data and connect it to different controllers in the following setup: Using Interface Builder, I created a tab controller in which - Tab #1 has a Nav Controller and a hierarchy of View Controllers. - Tab #2 has a View Controller So with what I have now, the View Controller under Tab #1 alloc init's the model class and I know how to pass the model from one ViewController to the next in the Navigation Hierarchy where it can pass the data and/or be updated with new data. Question is how to pass it from Tab #1's View Controller to Tab #2 View Controller as there is no code linking the two??? Thanks in advance, Hiren.

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  • What's a good book for learning BCPL?

    - by paxdiablo
    A long time ago, I worked on some BCPL code (very similar to C although even more basic, difficult though that is to imagine). Now, as part of a compiler course, we're going to be setting assignments for building some of the parts of the compiler (lexical and semantic analysis) and I'd like to know what the community thinks is the best book for learning about the language (and concrete why you think it's the best). Not how to write compilers for it, just on how to program in it. It'll be up to the students themselves to figure out how best to develop a compiler. We're using BCPL since the chance of people being able to plagiarise code for a compiler is very slim. Any suggestions?

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  • What would you like to see in a book about Rails 3?

    - by Ryan Bigg
    Hello, I'm thinking of writing a book about Rails 3 and I have a basic idea of what I want to write about, but really what I need is that little bit of polish from the community. The book is planned to cover: A little bit of Ruby Version control using Git Testing using RSpec & Cucumber Life without Rails (Rack) Developing an application in Rails (vague, I know, sorry! Work in progress) Javascript testing using Selenium Background processing Document databases (a tentative maybe, at this stage) Monitoring an application And a little more. So, I leave this question for you: What do you want to see in a book about Rails 3, which goes from "This is Rails" to "This is how Rails scales"?

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  • Where is a Web Development Career fueled by Passion? [closed]

    - by JMC Creative
    Quick Background Since learning basic html 5 years ago, I've become completely obsessed with the technology, the logic, and the thrill of solving problems involved with building websites. I am still stuck at a thoroughly non-programming type job, but would really like to move into the field of web programming/design. I have no educational background in the field (was trained as a fine artist and tutor), but in the past few years have progressed fully self-taught (and self-motivated) from html to css to php, mysql, jquery, and am now building rich web applications. The Question How can I prove to a company that even though I have no education, I have a passion to learn whatever is thrown my way? ...That essentially I would come at every issue with not only knowledge, but with a passionate desire to solve it, whether that means tackling a new language or debugging code for hours at a time? p.s. Sorry for the stupid title.

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  • Silverlight Binding: User controls inside datagrid.

    - by Eric
    I have a DataGrid in my silverlight app that has a few columns. A couple basic columns bound with no issues. One column has a UserControl in it and the XAML is as follows: <data:DataGridTemplateColumn Header="" CanUserSort="True" Width="107"> <data:DataGridTemplateColumn.CellTemplate> <DataTemplate> <local:StaticPageEnlistment EnlistmentName="{Binding SiteName}" Width="400" Height="150"/> </DataTemplate> </data:DataGridTemplateColumn.CellTemplate> </data:DataGridTemplateColumn> So I have a public property that's a string called EnlistmentName that I have bound to the SiteName value. I use this same "{Binding SiteName}" in all my other colums with no issues, why can't the user control accept the same binding string?

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  • Using Session State in Public Class in ASP.NET?

    - by davemackey
    I'm trying to move some reusable portions of code into a class. This is working okay except when I attempt to use Session within this class. I get an error: "Cannot refer to an instance member of a class from within a shared method or shared member initializer without an explicit instance of the class." My code looks something like this: Public Class webHousing Inherits System.Web.UI.Page Public Sub GetUserInfo() Dim x as String x = 10 Session("x")= x End Sub End Class I've simplified this code significantly - but the basic problem is present - trying to set a session value from within a class. I found the following MSDN article1 but don't believe Public/Shared can be used on Session?

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  • YUI Datatable Not Taking JSON

    - by Pete Herbert Penito
    I am trying to fill a Datatable with a JSON using YUI, I have this JSON: [{"test":"value1", "test2":"value2", "test3":"value3", "topic_id":"123139007E57", "gmt_timestamp":1553994442, "timestamp_diff":-1292784933382, "status":"images\/statusUp.png", "device_id":"568FDE9CC7275FA"}, .. It continues like this with about 20 different devices, and I close it with a ] I just want to print select keys in the datatable so my Column Definitions look like this: var myColumnDefs = [ {key:"test", sortable:true, resizeable:true}, {key:"test2", sortable:true, resizeable:true}, {key:"topic_id", sortable:true, resizeable:true}, {key:"status", sortable:true, resizeable:true}, {key:"device_id", sortable:true, resizeable:true}, ]; var myDataSource = new YAHOO.util.DataSource(bookorders); myDataSource.responseType = YAHOO.util.DataSource.TYPE_JSARRAY; myDataSource.responseSchema = { fields: ["test","test2","topic_id","status","device_id"] }; var myDataTable = new YAHOO.widget.DataTable("basic", myColumnDefs, myDataSource); It's print Data Error for some reason, what am I doing wrong? Thanks! I have tested the validity of the JSON at JSONLint and it says it is valid.

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  • Resources for dashboard app backend design

    - by Nix
    I am looking for examples of code/data/infrastructure design for a dashboard-style webapp. I am designing an interface for staff and faculty at a university to access departmental resources and be alerted of cyclical processes, events, deadlines, etc. Technologies I am working with: apache tomcat 6 and a mySQL database, JSP (including JSTL), bootstrap 3, and javascript/jquery. I have basic experience most of these technologies building smaller web apps but was hoping someone could direct me towards a book or other resource that discusses how to design the db architecture (and maybe how to template) for a dashboard, esp. for something like a notification systems. Any suggestions?

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  • Deserialising Json to derived types in Asp.Net Web API

    - by IoChaos
    I'm calling a method of my WebAPI sending a json that I would like to match (or bind) with a model. In the controller I have a method like: public Result Post([ModelBinder(typeof(CustomModelBinder))]MyClass model); 'MyClass', wich is given as a parameter is an abstract class. I would like that at, depending of the type of json passed, the correct inherited class is instantiated. To achieve it, I'm trying to implement a custom binder. The problem is that (I don't know if it's very basic but I can't find anything) I don't know how to retrieve the raw Json (or better, some kind of serialization) that comes in the request. I see: actionContext.Request.Content But all methods are exposed as async. I don't know who this fits with passing the generate model to the controller method... Thanks a lot!

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  • iPhone - Landscape Only App

    - by Robert
    Hello all! I am trying to make an app that will only be viewed in Landscape. I have looked up some tutorials (albeit older ones) and have done the following: -set up the info.plist to include a key for uiinterfaceorientation -in the main view controller I have set the frame to be 480 x 320 Now, the first screen loads up ok. Everything is where it should be and whatnot. However, if I click a button that is set to present a modal view controller nothing happens. Everything is linked and coded correctly but nothing happens when I press the button. Am I doing something wrong with trying to force landscape? At it's basic, this question is a how do you effectively make an app that will only be in landscape mode? Thanks for any help.

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  • variable being weirdly deleted

    - by calccrypto
    im having a weird problem with one variable: its not being recognized but its still printing. i would post my code, but it is massive. the basic idea is: # pseudocode def function(stuff): <do stuff> # These are the only 2 conditions if tag == 3: pka = <a string> if tag == 4: pka = <a string> print pka # (1) print pka # (2) <do stuff not modifying pka> print pka # (3) if pka == 'RSA': <do stuff> elif pka == 'DSA': <do stuff> my code will error at (2). however, it will print out (1), (2), and (3), all of which are the same. is there any general explanation of why this is happening? if my code is really needed, i will post it, but otherwise, i would rather not due to its size update: now the code will error at the if statement after (3), saying UnboundLocalError: local variable 'pka' referenced before assignment even though (1),(2),(3) just printed

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