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• combination of open source licenses

  - by Nicola Montecchio

  Hi I'm about to release some software as open source. It uses Lucene (Apache license) and jopt simple (MIT license). Are there any constraints on the license that I am going to apply to my own software? In particular, it is an adaptation of Lucene for performing content-based search on audio (so, many classes are inherited and in one case copied with a little modification). It only uses jopt simple for handling command line arguments (i.e. no modification at all, just "import" and "new OptionParser..."). Thanks for your help Nicola Montecchio

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• How to stop/override a Jquery TimeOut function?

  - by Tom

  Hi, I have a small jquery snippet that displays notification message at the top of the screen in response to user actions on a page. The notification is often displayed after Ajax actions with dynamic content inside it. For example: $("#mini-txt").html("Thank you!"); $("#mini").fadeIn("fast"); setTimeout(function() {$("#mini").animate({height: "hide", opacity: "hide"}, "medium");}, 3000); The notification works well, except when a user does two or more actions in rapid succession, in which case the TimeOut function will confuse itself and the second message appears to come inside the previous 3000 milliseconds. Is there a way to "kill" the previous notification if a new action is performed. I've got no problem with the actions/selectors, just the TimeOut function.... either stopping it or overriding it somehow. Or perhaps there's a better alternative for getting the message to linger on the screen for a few seconds before disappearing? Thank you.

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• How do I create multiple submit buttons for the same form in Rails?

  - by Angela

  I need to have multiple submit buttons. I have a form which creates an instance of Contact_Call. One button creates it as normal. The other button creates it but needs to have a different :attribute value from the default, and it also needs to set the attribute on a different, but related model used in the controller. How do I do that? I can't change the route, so is there a way to send a different variable that gets picked up by [:params]? And if I do then, what do I do in the controller, set up a case statement?

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• jQuery object are immutable?

  - by Daniel

  Hello a new noob on jQuery here and I was wondering if jQuery objects are immutable. For example: var obj1 = $("<tag></tag>"); var obj2 = obj1.append("something"); Will obj1 and obj2 be the same meaning obj2 will reference obj1? UPDATE: The above example kind of scratches the surface of what i want to know, a more accurate question is : If i chain function from the jQuery api will they return the same object or a new one (as the case with strings in Java)?

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• How to detect if google chrome rss plugin is installed-php?

  - by zeina

  I'm working on a word press project. I noticed that rss is not working fine on google chrome. After I googled about it, it turned out that I need to install a plugin for google chrome so rss works. I want to know how to detect if the plugin is installed or not in case the user is using chrome browser. Currently I'm doing the following: function is_chrome() { return(eregi("chrome", $_SERVER['HTTP_USER_AGENT'])); } if(is_chrome()) { // I want to check if plugin installed or not here. }

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• Can I interpolate two HEX color values without converting them to RGB?

  - by navand

  I'm trying to make a Gradient Class for a Blackberry app. At first I thought about converting the HEX values to RGB and then interpolating them before converting the result back into HEX, but since I will be doing this for every pixel line of an area, and the calculations will be made by a mobile, I thought that maybe there's a more efficient way of doing it. Maybe involving those pesky bitwise operators which I know nothing of... or something. So, is there a way of interpolating without converting to RGB and back? If so, is it faster than the original way? In any case, can you help me make the most efficient color interpolation? Thank you in advance!

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• creating a wordpress dev enviornment and uploading to production

  - by Jeff

  I am an old school java developer who is considering a using wordpress. I'm used to developing locally on my PC (yeah yeah not even a mac) and then ftping my files up to a production environment on a remote server. My high level review of wordpress gives me the impression that typically there is no concept of lower environments and that all updates occur directly in production. Is this the case? If not, can someone explain how one goes about uploading the files to a web site? Thanks, Jeff

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• Is it possible to use an input within a <label> field?

  - by javanix

  I have a bunch of optional "write-in" values for a survey I'm working on. These are basically a radio button with a textbox within the answer field - the idea being that you would toggle the button and write something into the box. What I'd like to do is have the radio button toggled whenever a user clicks in the text field - this seems like a use-case that makes a lot of sense. Doing this: <input type="radio" id="radiobutton"><label for="radiobutton">Other: <input type="text" id="radiobutton_other"></label> works fine in Chrome (and I am guessing, other WebKit browsers as well), but there are weird selection issues in Firefox, so I'm assuming its a non-standard practice that I should stay away from. Is there a way to replicate this functionality without using JavaScript? I have an onclick function that will work, but we're trying to make our site usable for people who might have NoScript-type stuff running.

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• Parse and charset: why my script doesn't work

  - by Rebol Tutorial

  I want to extract attribute1 and attribute3 values only. I don't understand why charset doesn't seem to work in my case to "skip" any other attributes (attribute3 is not extracted as I would like): content: {<tag attribute1="valueattribute1" attribute2="valueattribute2" attribute3="valueattribute3"> </tag> <tag attribute2="valueattribute21" attribute1="valueattribute11" > </tag> } attribute1: [{attribute1="} copy valueattribute1 to {"} thru {"}] attribute3: [{attribute3="} copy valueattribute3 to {"} thru {"}] spacer: charset reduce [tab newline #" "] letter: complement spacer to-space: [some letter | end] attributes-rule: [(valueattribute1: none valueattribute3: none) [attribute1 | none] to-space [attribute3 | none] (print valueattribute1 print valueattribute3) | [attribute3 | none] to-space [attribute1 | none] (print valueattribute3 print valueattribute1 valueattribute1: none valueattribute3: none ) | none ] rule: [any [to {<tag } thru {<tag } attributes-rule {>} to {</tag>} thru {</tag>}] to end] parse content rule output is >> parse content rule valueattribute1 none == true >>

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• Generic documentation guide-lines for implementation details

  - by mgj

  Hi..:) For documentation and presentation purposes, we often find professionals/students creating SRS, coding guidelines etc. for these things there is some kind of a checklist which one could use to appropriately match what could relate to a specific case and accordingly one does a documentation for each. On those grounds could you please give me some sort of a checklist( any points/guidelines) one could use for going about Implementation( in the form of Implementation Details) in Python and C++ . Although this might sound specific as the query is "Implementation Details" and is different for different cases as one goes about the REAL implementation, I just want a SET of guidelines one should follow ( Preferably In Python, C++ specific, even for any other language is Welcome) if this( Implementation Details ) has to also be documented or presented. Hope the question is clear, I am sorry if it still sounds ambiguous, I guess this is the best I could do to frame my query. Thank you for your time...:)

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• Uncertain response from Combobox SelectedItem

  - by MSingh

  I am working in winform and using combobox. I set the properties of combobox in this sequence combobox.DisplayMember = "cust_name"; combobox.ValueMember="cust_id"; combobox.datasource=dtCustomer; I have used combobox in my application several times, I don't know where I am making mistake as Sometime SelectedItem property returns exact value (int,string) based on the data type of "ValueMember" property, but sometime it returns "DataRowView". I've read this is because of the sequence in which properties are setting in combobox. But this is not the case now. Binding code is Calling code is

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• New/strange Java "try()" syntax?

  - by Ali

  While messing around with the custom formatting options in Eclipse, in one of the sample pieces of code, I say code as follows: /** * 'try-with-resources' */ class Example { void foo() { try (FileReader reader1 = new FileReader("file1"); FileReader reader2 = new FileReader("file2")) { } } } I've never seen try used like this and I've been coding in Java for 9 years! Does any one know why you would do this? What is a possible use-case / benefit of doing this? An other pieces of code I saw, I thought was a very useful shorthand so I'm sharing it here as well, it's pretty obvious what it does: /** * 'multi-catch' */ class Example { void foo() { try { } catch (IllegalArgumentException | NullPointerException | ClassCastException e) { e.printStackTrace(); } } }

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• Implementing a multi-state planner

  - by MoominTroll

  I've been asked to develop a system wherein employees can mark on a form their availability on a given day of the week - for instance an employee could mark themselves as available on a given time on a given week, and unavailable on some other time. It looks a little like this: Currently this works by rendering checkboxes within the table, picking up click events in each cell and marking the checkbox and hence the cell appropriately. I'm using the JQuery "click n drag checkbox" plugin from here. However, I've been informed that there could well be more than two states for a given cell (for instance available, unavailable, available in a given circumstance), in which case binding to a checkboxes checked value isnt going to be a lot of help. I've never used javascript or asp.net before and am unsure as to the best way to approach this problem. Ideally I could stick a data structure behind each cell which I could update to a certain state and then get my cell colour by binding to this - however I'm at something as a loss as how to best achieve this.

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• creating an options menu with quit application function

  - by Domen Tomažin

  Hello, I'm writing an application for android and I would like to insert an options menu, that would have only one function and that is to quit an application. My options_menu.xml looks like this (I created a new folder under res called menu - just like the instructions said): Than I added the following code to my java class file: @Override public boolean onCreateOptionsMenu(Menu menu) { MenuInflater inflater = getMenuInflater(); inflater.inflate(R.menu.options_menu, menu); return true; } @Override public boolean onOptionsItemSelected(MenuItem item) { // Handle item selection switch (item.getItemId()) { case R.id.quit: finish(); return true; default: return super.onOptionsItemSelected(item); } I also defined the @string/quit in values - strings.xml file, but it still says that there is an error: C:\Users\Domen\workspace\Lovne Dobe1.1\res\menu\options_menu.xml:3: error: Error: No resource found that matches the given name (at 'title' with value '@string/quit') So if anybody can help I would be very grateful.

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• Given a string of red and blue balls, find min number of swaps to club the colors together

  - by efficiencyIsBliss

  We are given a string of the form: RBBR, where R - red and B - blue. We need to find the minimum number of swaps required in order to club the colors together. In the above case that answer would be 1 to get RRBB or BBRR. I feel like an algorithm to sort a partially sorted array would be useful here since a simple sort would give us the number of swaps, but we want the minimum number of swaps. Any ideas? This is allegedly a Microsoft interview question according to this.

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• How to build the ViewModel in MVVM not to violate the Single Responsibility Principle?

  - by Przemek

  Robert Martin says: "There should never be more than one reason for a class to change". Let's consider the ViewModel class which is bound to a View. It is possible (or even probable) that the ViewModel consists of properties that are not really related to each other. For small views the ViewModel may be quite coherent, but while the application gets more complex the ViewModel will expose data that will be subject to change for different and unrelated reasons. Should we worry about the SRP principle in the case of ViewModel class or not?

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• Write permission for a specific folder in web.config

  - by Simon Dugré

  My question is preaty simple. Is there any way to give current user (IIS User, in this case, ASP NET USER) permission to write to a specific folder location (folder inside our web application) using web.config? Because, it's getting boring to ask to the web hoster to gain access to a specific folder each time we want to do a file uploader on a website. I know it's maybe preaty simple to find an answer using google, but it keeps returning me how to write INTO web.config instead of permission to write into web.config FOR a specific folder. In addition, I'm french so my english is not at the top.

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• How are variables bound to the body of a define_method?

  - by Chris

  While trying to brush up my Ruby skills I keep running across this case which I can't figure out an explanation for by just reading the API docs. An explanation would be greatly appreciated. Here's the example code: for name in [ :new, :create, :destroy ] define_method("test_#{name}") do puts name end end What I want/expect to happen is that the name variable will be bound to the block given to define_method and that when #test_new is called it will output "new". Instead each defined method outputs "destroy" -- the last value assigned to the name variable. What am I misunderstanding about define_method and its blocks? Thanks!

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• correct way to turn EAR module into OSGI bundle

  - by Osw

  Greetings to all! There is a necessity to turn part of EAR (namely - war) into OSGI bundle and retain it's interoperability. Glassfish 3.0.1 already has osgi-web-container module and I succeeded to deploy standalone OSGI war. But in case of of ex-enterprise war it looks a bit difficult to me. What do I do with EJB calls from inside future OSGI war? Is it enough to replace @EJB injections with true JNDI lookups? What about APIs and libraries shared across EAR? I could split and rearrange them, but still I will have at least one jar needed by both EAR and OSGI war. Duplicate, make it as OSGI-bundle itself and make it available to ear somehow, place it GF domain's library path? Any other ideas, advices which could make that hybrid working? Many thanks in advance, Osw

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• Rewrite Mod issue

  - by Caro Fiedler

  I have the follow code: if (isset($_GET['preis']) && $_GET['preis']==="0-100-euro"){ $preis = "WHERE preis >= 0 and preis <= 100"; } elseif (isset($_GET['preis']) && $_GET['preis']==="100-200-euro"){ $preis = "WHERE preis >= 100 and preis <= 200"; } elseif (isset($_GET['preis']) && $_GET['preis']==="200-300-euro"){ $preis = "WHERE preis >= 200 and preis <= 300"; } elseif (isset($_GET['preis']) && $_GET['preis']==="300-500-euro"){ $preis = "WHERE preis >= 300 and preis <= 500"; } else { } $abfrage = "SELECT * FROM outfits $preis LIMIT $start, $eintraege_pro_seite"; $ergebnis = mysql_query($abfrage); example.com/?preis=100-200-euro works but example.com/preis-100-200-euro/ is not This is my htaccess: RewriteEngine On RewriteRule ^preis-([^-]*)/seite-([^-]*)/$ ?preis=$1&seite=$2 [L] RewriteRule ^preis-([^-]*)/$ ?preis=$1 [L] RewriteRule ^seite-([^-]*)/$ ?seite=$1 [L] I use the same rules for many other links and it works fine, but only in this case not

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• Implementing 1 to n mapping for ORM c++

  - by karan

  I am writing a project where I need to implement a stripped down version of an ORM solution in C++. I am struck in implementing 1-n relationships for the same. For instance, if the following are the classes: class A { ... } class B { ... std::list<A> _a_list; ... } I have provided load/save methods for loading/saving to the db. Now, if I take the case of B and the following workflow: 1 entry from _a_list is removed 1 entry from _a_list is modified 1 entry is added to _a_list Now, I need to update the db using something like "b.save()". So, what would be the best way to save the changes, i.e, identify the additions, deletions and updates to _a_list.

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• Resetting Objects vs. Constructing New Objects

  - by byronh

  Is it considered better practice and/or more efficient to create a 'reset' function for a particular object that clears/defaults all the necessary member variables to allow for further operations, or to simply construct a new object from outside? I've seen both methods employed a lot, but I can't decide which one is better. Of course, for classes that represent database connections, you'd have to use a reset method rather than constructing a new one resulting in needless connecting/disconnecting, but I'm talking more in terms of abstraction classes. Can anyone give me some real-world examples of when to use each method? In my particular case I'm thinking mostly in terms of ORM or the Model in MVC. For example, if I would want to retrieve a bunch of database objects for display and modify them in one operation.

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• Registering a delegate function with an ISO C++ callback (on mono)

  - by Stick it to THE MAN

  I am thinking of wrapping ISO C++ code in C# class. The only problem so far is how to deal with the C++ callbacks. In .Net languages (C# and Vb.Net), I believe the callback equivalent. Sticking with C# for now, can anyone recommend a way that I can register the C# delegate functions with my ISO C++ code. The ISO C++ code is a notification library, and I want to be able to "push" the notifications to the mono framework (i.e. C# delegates in this case). My underlying assumption is that the mechanism/steps to implement this would be the same for the .Net languages - I'll just have to code the actual delegates in the .Net language of choice - is that assumption correct? Last but not the least, is the question of thread saftey. The underlying ISO C++ code that I am exposing to .Net (mono to be more specific), is both re-ntrant and thread safe - do I have to do anything "extra" to call .Net delegate from my ISO C++ code?

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• Retrieving Top 10 rows ans sum all others in row 11

  - by Mario

  Hello all, I have the following query that retrieve the number of users per country; SELECT C.CountryID AS CountryID, C.CountryName AS Country, Count(FirstName) AS Origin FROM Users AS U INNER JOIN Country AS C ON C.CountryID = U.CountryOfOrgin GROUP BY CASE C.CountryName, C.CountryID What I need is a way to get the top 10 and then sum all other users in a single row. I know how to get the top 10 but I`m stuck on getting the remaining in a single row. Is there a simple way to do it? For example if the above query returns 17 records the top ten are displayed and a sum of the users from the 7 remaining country should appear on row 11. On that row 11 the countryid would be 0 and countryname Others Thanks for your help!

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• Is there a faster TList implementation ?

  - by dmauric.mp

  My application makes heavy use of TList, so I was wondering if there are any alternative implementations that are faster or optimized for particular use case. I know of RtlVCLOptimize.pas 2.77, which has optimized implementations of several TList methods. But I'd like to know if there is anything else out there. I also don't require it to be a TList descendant, I just need the TList functionality regardless of how it's implemented. It's entirely possible, given the rather basic functionality TList provides, that there is not much room for improvement, but would still like to verify that, hence this question.

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