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• Where should I store user config data? Specificaly the path to the data file?

  - by jamone

  I have an app using a SQLite db, and I need the ability for the user to move the data file and point the app to where it moved to. I used the Entity Framework to create the model, and by default it puts the connection string in the App.Config file. From what I've read if I make changes to the connection string there then they won't take effect until the app is restarted. That seems a bit clunky for my use. I see how I can init my model and pass in a custom string but I'm unsure what the best practice is in where to store basic user prefrences such as this? Ini, Registry, somewhere else? I don't want the user to have to "Open" the file each time, just when it relocates and then the app will try to auto open from then on.

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• Passing an array for setting variable

  - by mathk

  Hi, I often see this idiom when reading php code: public function __construct($config) { if (array_key_exists('options', $config)) { ... } if (array_key_exists('driver_options', $config)) { ... } } Here I am concern with the way the parameter is used. If I were in lisp I would do: (defun ct (&key options driver_options) (do-something-with-option-and-driver_option)) But since I am in PHP I would rather have a constructor that take a list of parameter and let them be null if there a not require. So what do you guys think about having an array as parameter in other to do some initialization-or-whatever? In other to answer you have to take in account the point of view of the user of the function and the designer of the API. Also have you ever heard this has a code-smell? thanks

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• How does one advance in programming?

  - by Joe Barr

  I really have the felling as if I'm stuck in my own craft. I've been developing and learning for a while now and keep having the feeling that I should advance more, or even be more knowledgeable. I've started projects I didn't finish because I thought I lacked the knowledge and the skill to make that feature work just right, or to make that code magically appear on my screen. I've read books I didn't finish, thinking I wasn't advanced enough for the subjects they covered. I've been around long enough to know that everything comes with experience, hard work and dedication. Having said this, I just want to be able to work without getting stuck on a particular problem that involves my cluelessness of a language or a tool feature. My question to you would be, how does one advance in programming? What are the secrets (if any) to advance to the point of fluency in a particular language or a task. Thank you!

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• IHTMLTxtRange.execCommand("Copy",false,null) fails due to IE settings

  - by srirambalaji-s

  We have a .Net application that is used for editing/rendering customized HTML documents. It is hosted in IE using the AxSHDocVw.AxWebBrowser controls. We proceed with navigating to "about:blank" page initially then we change the Document by writing our custom values into it. The problem we are facing is the call to IHTMLTxtRange.execCommand("Copy",false,null) is failing if we don't enable the IE Security Settings in the Internet Security zone (Scripting-Allow Programmatic Access to Clipboard ). In order to bypass the security setting ,I tried to point to a local html file initially while navigating. But this fails as soon as I modify the Document. I want to use the IHTMLTxtRange.execCommand("Copy",false,null) command so that I can customize our Copy/Paste operations. Is there any other way I can do this. Please share your ideas inorder to overcome this situation. Thanks. Sriram

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• Reloading Rails Directories: Not Lib!

  - by yar

  I have checked out several questions on this, including all of those you see next to the question. Unfortunately, I'm not working with a plugin, and I don't want to work in lib. I have a directory called File.join(Rails.root, 'classes') and I'd like the classes in this directory to reload automatically in dev. In my environment.rb I have this line config.load_paths << File.join(Rails.root, 'classes') which works fine and blows up if the path isn't there. The reloading line in my development.rb also works fine require_dependency File.join(Rails.root, 'classes', 'blah.rb') which blows up if the file is not there (a good sign). However, the file doesn't reload. This all works if the file is in the root of lib and I use the require_dependency line, but my whole point is to get stuff out of lib as suggested here.

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• Switching Javascript Function states

  - by webzide

  Dear experts, I would like to implement a API of Javascript that sort of resemble a light switch. For instance, there are two buttons on the actual HTML page act as the UI. Both of the buttons have event handlers that invokes a different function. Each function have codes that act like a state, for instance. button1.onclick=function (){ $("div").click( //code effects 2 ) } button2.onclick=function (){ $("div").click( //Code effects 2 ) } I the code works fine on the surface but the 2 state functions overlap. the effects is going to take place for the rest of the way until the next reload of the document. Basically what I want to achieve is that when 1 button is clicked, it will switch "OFF" the state of function invoked by the other button and vice versa. Thus, the effects achieved are unique are not overlapped. Is there anyway to achieve this or could any experts point me to the right direction. Thanks in advance.

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• Possible to map a new file extension to an existing handler in ASP.NET?

  - by Dave

  I have a scenario where my application is going to be publishing services that are consumed by both PC's and mobile devices, and I have a HTTPModule that I want to only perform work on only the mobile requests. So I thought the best way of doing this was to point the mobile requests to a different file extension and have the HTTPModule decide to process only if the request targets this new extension. I don't need a custom HTTPHandler for the new extension; I want to program the services like a normal .ASMX service, just with a different extension. First, can I do this? If so, how do I do it so that requests to my new extension are handled just like .ASMX requests? Second, is this the right approach? Am I going about separating and managing the mobile vs. PC requests the wrong way? Thanks, Dave

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• Customising Symfony Admin Generator Form

  - by Rich

  Hi, I've generated the backend of my application, and am now just 'jazzing' the forms up (adding correct labels, validation rules etc). One thing I'd like to do is add a map (Google) which updates the marker as an address is entered into the form, then allows the user to drag it to correct the lat/lng should it be a little off. My question is, how can I customise the output of the form - I've read the docs (1.0,1.1,1.2 also) and it all seems very confusing. Customising forms not generated with the admin generator I know how to do using renderRow(); etc; but finding a way to add a little bit of HTML to the forms is making my eyes hurt! There's so much out of date stuff on the web regarding Symfony it's hard to know what to trust! If anyone can point me in the right direction that'd be great. Best Regards, Rich

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• Detect whether certain IIS features are present from InstallScript

  - by Christian Hayter

  I have an InstallScript project written in InstallShield 2010, which, amongst other things, shells out to several .NET MSI installers that install web apps. If any of these web apps are selected for installation by the end user, I need to check for the following optional IIS features from InstallScript code before allowing the install to proceed: ASP.NET (IIS 6+) WCF HTTP Activation (IIS 7+) IIS Metabase and IIS 6 configuration compatibility (IIS 7+) Can anyone point me in the right direction please? Ideally I'm looking for registry values that I can check directly from InstallScript code, but I guess some kind of WMI or COM check would be OK as well. PS: In case it's relevant, we need to support all versions of IIS from 5.1 onwards at this time. If 5.1 support is a problem, we may consider dropping it if we have to.

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• Multiple developers on a Titanium project

  - by Cybear

  I'm making an iPhone app with Appcelerator Titanium and I want to share the source code with a few more programmers. I will use a SCM repository which at some point might be open to the general public. Now my question is, are there any files which I should not commit to the repository? In project root I can tell that tiapp.xml and mainfest are telling the app GUID, is there any reason for me to keep that private? (this value is also shown many places in the build/ folder) I've added everything in the Resources/ folder. If I skip the build/iphone/build/ folder, will developers still be able to build the project? Side question - When another programmer downloads this code, it seems to me that (s)he has to have the same directory structure as I do? Any workarounds for this?

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• Sharing variable within different javascript file at client side

  - by Aman

  I was actually going through this link. which explains how we can share global variable across multiple js. but the point is what need to be done if I am getting some variable into one js and need to pass to another one mentioned in same document after the 1st one. approach which followed was: Script 1 <script type="text/javascript" src="js/client.js"></script> body added some hidden input with id myHiddenId, where values are set using client.js Script 2 <script type="text/javascript" src="js/anotherJS.js"></script> inside script 2 I am simply using $("#myHiddenId").val(); and using for my purpose. I want to know whether I am following correct approach, because that hidden field may have some data which client should not get aware of. is there any other way through which I can pass the variable values across the js files ? Since I am at beginner level hence digging up some resources/books but still no luck.

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• JDBC CLASSPATH Not Working

  - by AeroDroid

  I'm setting up a simple JDBC connection to my working MySQL database on my server. I'm using the Connector-J provided by MySQL. According to their documentation, I'm suppose to create the CLASSPATH variable to point to the directory where the mysql-connector-java-5.0.8-bin.jar is located. I used export set CLASSPATH=/path/mysql-connector-java-5.0.8-bin.jar:$CLASSPATH. When I type echo $CLASSPATH to see if it exists, everything seems fine. But then when I open a new terminal and type echo $CLASSPATH it's no longer there. I think this is the main reason why my Java server won't connect to the JDBC, because it isn't saving the CLASSPATH variable I set. Anyone got suggestions or fixes on how to set up JDBC in the first place?

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• Java SOAP WSDL 1.1 message sending all the parameters (even future ones)

  - by Eduardo

  I have to communicate with a SOAP Web Service defined in a WSDL 1.1. All the parameters are optional in the WSDL like: <xsd:element name="Submitter" type="xsd:string"/> but if I do not send them I get an error because the parameter was not sent, so instead I have to send an empty string for any parameter I do not intent to send. So instead of not sending the element I have to send: <Submitter></Submitter> The problem is that the WebService publisher does not have any problem adding new parameters at any point in time but I must sent at least an empty string for all the parameters. How may I call this WebService in Java so every time I call the WebService the WSDL is read so that all the parameters are sent having the parameters I care for are actually filled with the data I provide? I am currently using Apache CXF but I am open to anything to solve this problem.

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• How to roll my own index in c#?

  - by bill seacham

  I need a faster way to create an index file. The application generates pairs of items to be indexed. I currently add each pair as it is generated to a sorted dictionary and then write it out to a disk file. This works well until the number of items added exceeds one million, at which time it slows to the point that is unacceptable. There can be as many as three million data items to be indexed. I prefer to avoid a database because I do not want to significantly increase the size of the deployment package, which is now less than one-half of one megabyte. I tried Access but it is even slower than the sorted dictionary -if it had an efficient bulk load utility then that might work, but I do not find such a tool for Access. Is there a better way to roll my own index?

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• MySQL date query only returns one year, when multiple exist

  - by Bowman

  I'm a part-time designer/developer with a part-time photography business. I've got a database of photos with various bits of metadata attached. I want to query the database and return a list of the years that photos were taken, and the quantity of photos that were taken in that year. In short, I want a list that looks like this: 2010 (35 photos) 2009 (67 photos) 2008 (48 photos) Here's the query I'm using: SELECT YEAR(date) AS year, COUNT(filename) as quantity FROM photos WHERE visible='1' GROUP BY 'year' ORDER BY 'year' DESC Instead of churning out all the possible years (the database includes photos from 2010-2008), this is the sole result: 2010 (35 photos) I've tried a lot of different syntax but at this point I'm giving in and asking for help!

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• Django User "per project" group assignation

  - by Ben G

  Hi, Here's my problem : my site has users, which can create projects, and access other user's projects. Each project can assign different rights to users. So, i could have Project A : user "John" is in group "manager" , and Project "B" user "John" is in group "worker". How could I use the Django User authentication model to do that ? From a SQL point a view, what i would like is to be able to add "project_id" in the primary key for the "auth_user_groups" table. I don't think profile is of any help here. Any advice ? UPDATE : "worker" and "manager" are just two examples of the permission group (or "roles") that my application defines. There will be more in the future. Eg : i will probably also have "admin", "reporting", etc...

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• UIWebview handle popup view

  - by Tuan Nguyen

  I've a webpage with one text-box and one button. Click on button will show a popup for searching. On popup page,has 2 buttons, "Search" and "Close". Input the text and click Search, the result will display on a list on this popup, click on a row will close the popup and fill the value to text-box on main-page. On Destop browser, it works fine On Safari on iPad, it will open new tab instead of a popup but work fine. UIWebview in my app, on main-page, click the button, I will go to Search page, but when click Search button and close button, nothing happened, I know because 2 buttons will close the popup or the tab, but I don't know how to handle on my Webview, and also I can fill data to main-page or not? Could anyone point me away? Thanks,

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• Is it possible to run javascript with other target?

  - by Kristoffer Nolgren

  I have a facebook app that I authenticate using a general-purpose authentification. Like this: // Fixar oAuth jso_configure({ "facebook": { client_id: "393963983989013", redirect_uri: "http://resihop.herokuapp.com/", authorization: "https://www.facebook.com/dialog/oauth", presenttoken: "qs" } }); // Make sure that you have jso_ensureTokens({ "facebook": [""] }); // This dumps all cached tokens to console, for easyer debugging. //jso_dump(); jso_ensureTokens({ "facebook": [""] }); It's tirggered on document.ready. Because it's a facebook app I can't run the authentification in the iFrame. Facebook denies this using X-Frame-Options. The solution, if you authenticate with a link is to use target="_top". How do i Achieve the same effect in javascript? Maybe I need to edit one of the funcitons (though ideally not, as they are part of a library) in that case please point me in the right direction.

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• how to fetch a range of files from an FTP server using C#

  - by user260076

  hello all, i'm stuck at a point where i am using a wildcard parameter with the FtpWebRequest object as suck FtpWebRequest reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri("ftp://" + ftpServerIP + "/" + WildCard)); now this works fine, however i now want to fetch a specific range of files. say the file naming structure is *YYYYMMDD.* and i need to fetch all the files prior to today's date. i've been searching for a wildcard pattern for that with no good results, one that will work in a simple file listing. and it doesn't look like i can use regex here. any thoughts ?

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• killing a separate thread having a socket

  - by user311906

  Hi All I have a separate thread ListenerThread having a socket listening to info broadcasted by some remote server. This is created at the constructor of one class I need to develop. Because of requirements, once the separate thread is started I need to avoid any blocking function on the main thread. Once it comes to the point of calling the destructor of my class I cannot perform a join on the listener thread so the only thing I can do is to KILL it. My questions are: what happens to the network resoruces allocated by the function passed to the thead? Is the socket closed properly or there might be something pending? ( most worried about this ) is this procedure fast enough i.e. is the thread killed so that interrupt immediately ? I am working with Linux ...what command or what can I check to ensure that there is no networking resource left pending or that something went wrong for the Operating system I thank you very much for your help Regards MNSTN NOTE: I am using boost::thread in C++

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• Problem with finding the next word in RichTextBox

  - by paradisonoir

  As I enter a character in my RichTextBox, I want to get the next character from the its TextRange. So here is how I do it: TextPointer ptr1= RichTextBox.CaretPosition; char nextChar = GetNextChar(); while (char.IsWhiteSpace(nextChar)) { ptr1= ptr1.GetNextInsertionPosition(LogicalDirection.Forward); nextChar = GetCharacterAt(Ptr1); } then I get the ptr1 of the next character and from the TextPointer, I get the TextRange, and do my changes. So here is the problem? when the next word is spelled correctly, I have no problem, but if it's not spelled properly then ptr1 would not point to the first character of the next word (the second character), and if I use GetNextContextPosition(LogicalDirection.Forward) it would give me the first letter of the next word if it's misspelled. So depending on the spelling only one of them works? I was just wondering if you have any idea about this problem? Is there anything wrong I am doing here?

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• jquery dropdownbox auto populated with mysql data

  - by Xin

  I've got 2 dropdownboxes. Dropdownbox 1 shows all the tables from a database. When dropdownbox 1 is selected; dropdownbox 2 will be populated with tablefields from the selected table. dropdownbox 1: This dropdown is populated with the following mysql query: "show tables from testdb" dropdownbox 2: This dropdown will auto populate when dropdownbox 1 is selected. Dropdownbox 2 will be populate with the following query: "describe tablename" //tablename selected from dropdownbox 1 I want to make this using jquery. Can anyone point me into the right direction?

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• Is it secure to use malloc?

  - by Felix Guerrero

  Somebody told me that allocating with malloc is not secure anymore, I'm not a C/C++ guru but I've made some stuff with malloc and C/C++. Does anyone know about what risks I'm into? Quoting him: [..] But indeed the weak point of C/C++ it is the security, and the Achilles' heel is indeed malloc and the abuse of pointers. C/C++ it is a well known insecure language. [..] There would be few apps in what I would not recommend to continue programming with C++."

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• Link to pdf within app

  - by Thijs

  I've got an iOS app that at one point opens a link to a website in a webview. These links are kept in a plist file (so it is easy to maintain them as the app evolves). What I want to do next is to also link to PDF's (or any picture of text file format, of even a html format, this is flexible) that are kept within the app. And I would like to do this as much as possible from within the existing app structure. So, is it possible to create a link that can be put in the plist as a web-link, but instead opens a file on the device itself (possibly in the webview)? And how would I go about that? Any ideas? Thanx in advance for your help!

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• REST - why we need million urls and different HTTP request?

  - by Andre

  I asked this question. But I still don't understand why we need to utilize different HTTP requests: DELETE/PUT/POST/GET in order to build nice API Wouldn't it be a lot simpler to pass all information in request parameters and have a SINGLE ENTRY-POINT for your api?: GET www.example.com/api?id=1&method=delete&returnformat=JSON GET www.example.com/api?id=1&method=delete&returnformat=XML or POST www.example.com/api {post data: id=1&method=delete&returnformat=JSON} POST www.example.com/api {post data: id=1&method=delete&returnformat=XML} and then - we can handle all methods and data internally without the need for hundreds of urls... how would you call this type of API - It's not REST apparently, it's not SOAP. then - what is it? UPDATE I'm not proposing any new standards here. I merely asking a question in order to better understand why web services work the way they work.

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