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• Redirecting part of URL in Nginx

  - by Maca

  Trying to move my blog to a new site and I want to redirect some urls. I use nginx. https://blogurl.com/news/2014-08-19/post-3451/mt-preview-33e2742af1eb.php The /news/2014-08-19/post-3451/mt-preview-33e2742af1eb.php part would be always moving. Redirect to below: https://blogurl.com/content/news/2014-08-19/post-3451/mt-preview-33e2742af1eb.php I basically want to insert /content/ after https://blogurl.com and so far I have rewrite ^(.*)$ /content/ break; But my issue is my CMS sits on the same directory level https://blogurl.com/mt/admin and if I simply apply the rewrite above my CMS address would move too. How could I prevent this.

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• How can I disable the F4 key from showing the items in a ComboBox

  - by Alex

  You might not know this, but pressing the F4 key on a ComboBox makes it's drop-down item list appear. I believe this is the default behavior on Windows. Does anyone know how to override this behavior in WPF (C#)? I know that overriding default behavior is generally seen as bad practice, however in this case I have a rugged-device that runs XP Embedded. It has a handful of prominent Function keys (F1-F6) that need to trigger different events. This works fine, however when focused over a ComboBox the events aren't triggered as the ComboBox drops down. I have tried catching the KeyDown event both on the form and on the ComboBox and listening for the F4 key, however it doesn't get this far as the key press must be handled at a lower level. Any ideas? Thanks.

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• Microphone input

  - by George

  I'm trying to build a gadget that detects pistol shots using Android. It's a part of a training aid for pistol shooters that tells how the shots are distributed in time and I use a HTC Tattoo for testing. I use the MediaRecorder and its getMaxAmplitude method to get the highest amplitude during the last 1/100 s but it does not work as expected; speech gives me values from getMaxAmplitude in the range from 0 to about 25000 while the pistol shots (or shouting!) only reaches about 15000. With a sampling frequency of 8kHz there should be some samples with considerably high level. Anyone who knows how these things work? Are there filters that are applied before registering the max amplitude. If so, is it hardware or software? Thanks, /George

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• Where do I place the launch image "Default.png" in my iPhone app's project directory?

  - by Dr Dork

  In the Apple documentation, it says... iPhone OS looks for a Default.png file, located in the top level of the application bundle. but I'm having a hard time figuring out how to get the image in that location in the bundle (I'm new to all this). I'm assuming my image will end up in the right place in the bundle when I compile it so long as I add it to the project correctly and place it in the right location in the project directory. My questions are... Where in my project directory should I place the "Default.png" image? Do I need add it to the project through Xcode? If so, how? Thanks so much in advance for all your help! I'm going to continue researching this question right now.

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• Controlling when SQL UPDATE is executing on ehcache 'd classes

  - by thomers

  We are using Hibernate and ehcache as 2nd level cache. If I load an entity that is cached (e.g. cache-usage="read-write") and update it, it seems that this immediately results in an SQL UPDATE. (How) Can I influence when this SQL UPDATE happens? hibSession = HibernateUtil.getReadWriteSession(); tx = hibSession.beginTransaction(); User u = (User) hibSession.load(User.class, user_id); u.modify(); hibSession.update(u); tx.commit(); Edit: It seems that setting a CacheMode should have an effect, but each hibSession.update() results in an immediate SQL UPDATE, regardless which CacheMode I set.

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• Creating a Skill Calculator for Runescape

  - by USDblades

  I am beginning C++. I have a long way to go and I am one to never stop learning. I want to create a project for myself that will allow me to learn as I go. It will also give me the motivation and possibly add to my portfolio when I graduate. The runescape skill calculator will ask for your current experience in the current skill of your choosing and your desired level. For Example: my woodcutting experience is 60 and I want to get to lvl 5 which is 120 exp. That means im 60 experience away. by cutting oak logs I get 5 experience per log. The calculator would tell me I need to cut 12 Oak logs. All these numbers are made up. So to my question. Where would I even begin? Hoping it would have buttons to press.

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• Wastage of resources in Virtualization

  - by Sabeen Malik

  I am not sure if this is the write place to ask the question. However i hope it is. When looking for a VPS earlier today, I was trying to understand how each container would work in the background. Keeping in mind the fact that the operating system uses most of the power and power on a system, wouldn't having multiple operating systems in the same machine mean more wastage of resources. For instance if i was running centOS on a dedicated box and it was running lets say 20 background OS level processes. Then i go and install a virtualization platform and install 5 more centOS virtual machines in the same system which are exactly the same as the host operating system. Doesn't this mean duplication of those 20 processes 6 times? So internally the context switching is happening between 120 processes instead of 20?

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• Jsp cache problem

  - by idiotgenius

  I use javascript and css to build a multi-level drop down menu with following markups: <ul> <li>menu item 1</li> <ul> <li><a href="#">sub menu menu item 1</a></li> ................. This markup is generated by a custom JSTL tag <mui:menu .../> which loads menu data from a database. I hope my jsp page can behave like this: if menu data has not changed since last time I visited the page, just use browser's cache otherwise load from database... How can I do it? I don't know much detail about cache mechanism.

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• write cache and write sequence order

  - by excanoe

  ok, here i have some weird question: let say we have some binary file (.log), and sequence of write operations, for example log1, log2, log3 and each has some block size n (raw data). question: can I be sure that log1,log2 and log3 sequences can be written in the correct order in ONE file, even if i have few cache levels (disk hardware and os level)? update very interested in what will be with records order (not with records) if we have software or hardware failure (reboot or another reason). update there can be some percent of write failures, but main question is: will write order stay correct?

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• Should a protected property in a C# child class hide access to a public property on the parent?

  - by Tim

  I have the following code: public class Parent { public string MyField { get; set; } } public class Child : Parent { protected new int MyField { get; set; } } I try and access this with: static void Main(string[] args) { Child child = new Child(); child.MyField = "something"; } Visual studio 2008 compiles this without comment, but under Mono (2.4.2, Ubuntu) I get the error message 'HideTest.Child.MyField' is inaccessible due to its protection level (CS0122) Is one implementation or the other more compliant with the standard here?

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• Are self-described / auto-descriptive services loosely or tightly coupled in a SOA architecture ?

  - by snowflake

  I consider a self-described / auto-descriptive service as a good thing in a SOA architecture, since (almost) everything you know to call the service is present in the service contract (such a WSDL). Sample of a non self-described service for me is Facebook Query Language (FQL http://wiki.developers.facebook.com/index.php/FQL), or any web service exchanging XML flow in a one String parameter for then parsing XML and performing treatments. Last ones seem further more technically decoupled, since technically you can switch implementations without technical impact on the caller, handling compatibility between implementations/versions at a business level. On the other side, having no strong interface (diluted into the service and its version), make the service tightly coupled to the existing implementation (more difficulty to interchange the service and to ensure perfect compatibility). This question is related to http://stackoverflow.com/questions/2503071/how-to-implement-loose-coupling-with-a-soa-architecture So, are self-described / auto-descriptive services loosely or tightly coupled in a SOA architecture ? What are the impacts regarding ESBs ? Any pointer will be appreciated.

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• What experience is the most valued in a programmer?

  - by Christo

  I've been coding application level software for a while now. I've had some experience with internet (server/client based) applications, but that has been fairly scant. The field doesn't scare although I know that experience can be almost be measured in gold. I see myself as a highly qualified and experienced programmer, but I also see my short comings in these fields. Does this count against me (and others like me?) and would this cut anyone from obtaining the shortlist or are there other factors which bear more weight?

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• Function chaining depending on boolean result

  - by Markive

  This is just an efficiency question really.. I'm interested to know if there is a more efficient or logical way that people use to handle this sort of scenario. In my asp.net application I am running a script to generate a new project my code at the top level looks like this: Dim ok As Boolean = True ok = createFolderStructure() If ok Then ok = createMDB() If ok Then ok = createProjectConfig() If ok Then ok = updateCompanyConfig() I create a boolean and each function returns a boolean result, the next function in this chain will only run if the previous one was successful. I do this because an asp.net application will continue to run through the page life cycle unless there is an unhandled exception and I don't want my whole application to be screwed up if something in the chain goes wrong (there is a lot of copying and deleting of files etc.. in this example). I was just wondering how other people handle this scenario? the vb.net single line if statement is quite succinct but I'm wondering if there is a better way?

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• Convert Date with characters to mm/dd/yyyy

  - by peter

  I have a columns called Submit_Date in table Tickets and the datatype of it is Varchar(200) and I am trying to convert it to MM/DD/YYYY format and when i do that i get the following error: Msg 242, Level 16, State 3, Line 1 The conversion of a varchar data type to a datetime data type resulted in an out-of-range value. Sample Data of the table is: Submit_Date 27-09-2013 16:15:00 CST 30-09-2013 16:30:24 CST 27-09-2013 10:03:46 CST 30-09-2013 14:35:55 CST 25-09-2013 16:28:48 CST 24-09-2013 09:29:45 CST I tried doing the following: Select Convert(datetime,Submit_date,101) from dbo.Tickets Let me know where I am doing wrong.

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• How to prevent command/script from changing global environment

  - by guillermooo

  I need to run scriptblocks/scripts from the current top-level shell and I want them to leave the global environment unmodified. So far, I've only been able to think of the following possibilities: powershell -file <script> powershell -noprofile -command <scriptblock> The problem is, that they are very slow. For instance, I would like to be able to do: mkdir newdir cd newdir $env:NEW_VAR = 100 ni -item f 'newfile.txt' ...so that my shell's working dir wouldn't change and $env:NEW_VAR wouldn't be set in the global environment. Are there any more alternatives to accomplish this?

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• measuring uncertainty in matlabs svmclassify

  - by Mark

  I'm doing contextual object recognition and I need a prior for my observations. e.g. this space was labeled "dog", what's the probability that it was labeled correctly? Do you know if matlabs svmclassify has an argument to return this level of certainty with it's classification? If not, matlabs svm has the following structures in it: SVM = SupportVectors: [11x124 single] Alpha: [11x1 double] Bias: 0.0915 KernelFunction: @linear_kernel KernelFunctionArgs: {} GroupNames: {11x1 cell} SupportVectorIndices: [11x1 double] ScaleData: [1x1 struct] FigureHandles: [] Can you think of any ways to compute a good measure of uncertainty from these? (Which support vector to use?) Papers/articles explaining uncertainty in SVMs welcome. More in depth explanations of matlabs SVM are also welcome. If you can't do it this way, can you think of any other libraries with SVMs that have this measure of uncertainty?

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• Creating an Application to Save Arbitrary Application State

  - by ashes999

  See this SuperUser question. To summarize, VM software lets you save state of arbitrary applications (by saving the whole VM image). Would it be possible to write some software for Windows that allows you to save and reload arbitrary application state? If so (and presumably so), what would it entail? I would be looking to implement this, if possible, in a high-level language like C#. I presume if I used something else, I would need to dump memory registers (or maybe dump the entire application memory block) to a file somewhere and load it back somewhere to refresh state. So how do I build this thing?

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• Sql server execute permission; failure to apply permissions

  - by WestDiscGolf

  I've just migrated from SQL2000 to SQL2008 and I have started getting an execute permission issue on a stored proc which uses sp_OACreate. The rest of the system works fine with the db login which has been setup and added to the database. I've tried: USE master GO GRANT EXEC ON sp_OACreate TO [dbuser] GO But this fails with the following error: Msg 15151, Level 16, State 1, Line 1 Cannot find the user 'dbuser', because it does not exist or you do not have permission. I'm logged into the server as sa with full permissions. I can execute a similar sql statement and apply the permissions to a server role, however not a login/user. How do I apply the changes to the specific user/login? I can apply the permissions to the public role and it resolves my issue; however this seems to be a security issue to me which I don't really want to apply to the live server.

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• Including non-Python files with setup.py

  - by cool-RR

  How do I make setup.py include a file that isn't part of the code? (Specifically, it's a license file, but it could be any other thing.) I want to be able to control the location of the file. In the original source folder, the file is in the root of the package. (i.e. on the same level as the topmost __init__.py.) I want it to stay exactly there when the package is installed, regardless of operating system. How do I do that?

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• How to prepare for an interview for Ruby on Rails?

  - by Snehal

  Background about myself: I have about 3 years experience working in Java/J2EE. I am currently pursuing MS in Software Engineering at a reputed university. I have done several classwork projects on Ruby on Rails and can be considered at Intermediate level expertise with ROR. I have an interview coming up next week for a Ruby on Rails developer position at a startup. I have already prepared all the basics of Ruby on Rails but didn't get a lot input on the questions asked for ROR developers. Can you guys help me with the preparation? Any materials, suggestions would be welcome.

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• Questions about "casting operation" in OOP

  - by rhapsodyn

  When programming, we usually use some type-casting operations. When the casting happens on the objects "on the same level", it feels ok. But when it happens on the ojects "on the different levels"(mainly between father and son), it feels weird. Considering this: Class Son extends Father WhenSon s = (Son)father;, it's absolutely unreasonable. Because a "Son" is not a "Father" anymore, "Son" may grow up with some new properties "Father" doesn't have, the casting operation makes these properties unknown. On the other hand, Father f = (Father)son seems reasonable, but according to LSP "An instance of a derived should be able to replace any instance of its superclass" A "Son" can do anything his "Father" can, so the casting operation seems useless. So can i say that these casting operations are agaisnt OO design principle but necessary?

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• Segmentation fault problem (C)

  - by user228938

  I have a struct named Game with an array of levels, defined like this: typedef struct { Level levels[x]; } Game; When I compile the code, if x is 1, 2 or 3, the program runs normally. If it's any other value (4, for instance), I get a segmentation fault. I'm not accessing the array anywhere. Main is something like this at the moment (commented everything except the initialization): int main (...) { Game g; return 0; } Any clue of what this might be? Thanks in advance.

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• WordPress > microsites use main site's menu (same domain, multiple subdirectories, multiple WP insta

  - by Scott B

  I have a main site at site.com and several subdirectory "microsites" at site1.site.com, site2.site.com, etc. These are all on the same server. Each site is set up in its own folder under public_html and each with its own separate wordpress install. I'd like for each microsite to share the same top level menu (the page's menu) with the main site. I'm sure there are several approaches and I'd like to ask you for a few ideas. As an aside, I'd also like to ask if the new WordPress 3.0 beta would make this simpler to do (since it combines wordpress MU into the main wordpress core)

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• What is a valid and reasonable alternative to a massive storage approach?

  - by Backo

  I am using Ruby on Rails 3.2.2 and MySQL. After my previous question on "how to handle massive storage of records in database for user authorization purposes", since related answers (on how to solve the issue or how to accomplish to that I am looking for) aren't sufficiently detailed or require to much resources (at least for me), I would like to know what are valid and reasonable alternatives to that approach. In few words, this question could be phrase as: how to handle "complex" (at level of SQL querying) user authorizations when you have to fetch "authorized" records? That is, for example, how to retrieve records when you would use code like the following (the following code would be used mostly in index controller actions): Article.readable_by_user(@current_user) # => Returns all articles readable by the current user.

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• Exclude subexpression from regexec in c++

  - by wyatt

  Suppose I was trying to match the following expression using regex.h in C++, and trying to obtain the subexpressions contained: /^((1|2)|3) (1|2)$/ Suppose it were matched against the string "3 1", the subexpressions would be: "3 1" "3" "1" If, instead it were matched against the string "2 1", the subexpressions would be: "2 1" "2" "2" "1" Which means that, depending on how the first subexpression evaluates, the final one is in a different element in the pmatch array. I realise this particular example is trivial, as I could remove one of the sets of brackets, or grab the last element of the array, but it becomes problematic in more complicated expressions. Suppose all I want are the top-level subexpressions, the ones which aren't subexpressions of other subexpressions. Is there any way to only get them? Or, alternatively, to know how many subexpressions are matched within a subexpression, so that I can traverse the array irrespective of how it evaluates? Thanks

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