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• I think I don't understand git branches

  - by Hans

  Salutations everyone, I have been working on a bash script as a small summer project to learn more about UNIX scripting and on using git. This has been the first time that I have used branches in git, normally I just stick to master. I was viewing the git log with the graph (git log --graph) when I noticed that my 'develop' branch seemed to have merged with 'master'. Something like this: master ----1--------3----4----5----6----HEAD develop \---2---/ but commits 3 onwards were done within the develop branch. Doing git checkout master and git checkout develop showed this to be true. What exactly is going on? Is this what is known as fast-forwarding? P.S.: Commits 1 and 2 are also a mystery to me being that commit 2 is actually an amendment of commit 1 (as far I thought, I used this advice)

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• receive a responseText in ajax but without div tag

  - by kawtousse

  Hi everyone I want to know if there is any other way whithout using a div tag to receive response html when sending parameter whith ajax. I'am asking because when iam building the select in other servlet and returning the result to jsp it receive the responsehtml in a div tag when we use the famous: x = xhr.responseText; document.getElementById('param').innerHTML = x; with param is the id of div tag. Note: this works fine when populating ddl but its constraint are multiple for my case. Thinks.

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• How do I customize the format of git rebase --interactive commit messages?

  - by adamjford

  Hi everyone, I use git for my local work (and love it ever so much), and I follow a workflow similar to the one described in this article. So basically, when starting on a new feature, I create a branch for it, go through the usual hack then commit cycle, and when I think I'm done with it, I squash it into a single commit using git rebase --interactive master, and these squashed commit messages always end up looking like the example in the article, reproduced here: [#3275] User Can Add A Comment To a Post * Adding Comment model, migrations, spec * Adding Comment controller, helper, spec * Adding Comment relationship with Post * Comment belongs to a User * Comment form on Post show page Of course, that's after a bunch of removing # This is the xth commit message lines and copy/pasting * in front of each commit message. Now, what I was wondering, is there any way to customize how git rebase -i outputs the merged commit messages so I don't have to do all that hacking? (I use msysgit, if that matters.) Thanks!

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• After 30 seconds, update MYSQL databse

  - by Sam

  Hello everyone! I've been looking around here on SO and Googling, however I can't find anything that fits my description. What I want to do is update the database if the page has not been refreshed after 30 seconds. I want to email a person with the contents of a form {submitted by a different user} (I can do that) IF the person has NOT visited the page (I can do that) within the last 30 seconds. What I've tried to do is make the page that should be visited refresh every 30 seconds, and so I figured if I did something like after 31 seconds, edit the database (so if the refreshed page was not refreshed, the database editing would run). I'm sorry if this sounds complicated, there's probably a better way to do this, but I'm not sure how. The bigger picture is I'm trying to make a 'on-duty' sort of thing, so that if the person is not actively looking at the page, they will get emailed with whatever the contents of the form is. The page will contain a table of all the entered form results.

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• Sending parameters to other sites

  - by moustafa

  look here first http://stackoverflow.com/questions/2883338/how-can-i-send-a-date-from-one-site-to-other-sites let me change the question a bit, i didnt really explain myself properly. What i intend to do is get z.php to read a text file called 'sites.txt' which has a list of sites: site1.com/a.php site2.com/b.php site3.com/c.php to execute the urls in the sites in 'sites.txt' i want it to go through siteA.com/z.php?ip=xxx.xxx.xx.xxx&location=UK (z.php will then read 'sites.txt') All sites in the 'sites.txt' file will be executed as site1.com/a.php?ip=xxx.xxx.xx.xxx&location=UK site2.com/b.php?ip=xxx.xxx.xx.xxx&location=UK I hope that makes more sense, i have tried looking around but couldnt find what i was looking for. Thanks for your help so far everyone. site3.com/c.php?ip=xxx.xxx.xx.xxx&location=UK

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• Facebook: Requires a valid user is specified (either via the session or via the API parameter for specifying the user.

  - by Stoic

  Hey Everyone, I am receiving this error: Requires a valid user is specified (either via the session or via the API parameter for specifying the user. when I am trying to utilize Facebook's FB.api with JS SDK for method: users.hasAppPermission I am constantly receiving this error, for any uid I pass on. Here is my code: $(document).ready(function() { var perms_requested = <?php echo PERMS;?>; var user_id = <?=$user_id;?>; $('#perms_check').html(loading); ask_for_perms(perms_requested, function(data) { $('#perms_check').html(data); }); function ask_for_perms(perms_requested,cb) { var request = []; $.each(perms_requested,function(i,permission) { FB.api({ method: 'users.hasAppPermission', ext_perm: permission, uid: user_id }, function(response) { if (response == 0) request.push(permission); if (i == perms_requested.length - 1) cb(request.join(', ')); }); }); } }); Also, I am utilizing nearly the same code in some other part of the same application, and I am getting fine results with that.

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• Having trouble getting GET variables from url.

  - by mchl

  Hey everyone, I'm having trouble with this algorithm to extract the get variables from a url and print them each on a new line like: x=y z=hello etc. but instead it prints a seemingly random section of the url with no newlines to the file. There must be a logic error of some kind but i just can't spot it. for(i_m=0;i_m<len_m;i_m++) { if(var_m[i_m]=='&') { fwrite(var_m+offset_m, 1, amp_m, echo_out); fputc('\n',echo_out); offset_m+=amp_m; amp_m=0; } amp_m++; } any help appreciated.

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• Defautlt Contoller in CodeIgniter

  - by gregavola

  Hello everyone, I am wondering if there is any other configuration options for a default controller. For example - if I have a controller called "site" and I set the default controller in the following file: application/config/routes.php to: $route['default_controller'] = "site"; I should be able to go to http://localhost and that brings up the index(); function in the site controller. However, if I try to do go to http://localhost/index.php/index2 to load the index2(); function I get a 404 error. If i change the URL to http://localhost/index.php/site/index2 it works fine - but I thought already set the default controller. Is there any way around this? Any thoughts?

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• Upload files, form within form

  - by Alexd2

  Hello everyone and thanks in advance. I have a problem and I have 2 form into one another, the domestic form is to perform a file upload. As I can do to make when sending in internal form not run the main form. <form name="x" method="post" action="xxx.php"> .... <form action="" method="post" enctype="multipart/form-data" target="xxx"> <input type="file" /> <input type="submit" /> </form> <iframe id="xxx" src="process.php"> </iframe> .... <input type="submit" name="pro" value="Register user"/ > </form> Doing this does not work, as this within another form. Any help or possible solution.

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• Replace <Unknown Source> in Java Rhino (JSR223) with actual file name

  - by Lord.Quackstar

  Hello everyone, In my code, all of the scripts are contained in .js files. Whenever one of the scripts contains an error, I get this: javax.script.ScriptException: sun.org.mozilla.javascript.internal.EcmaError: ReferenceError: "nonexistant" is not defined. (<Unknown source>#5) in <Unknown source> at line number 5 What bugs me is the <Unknown Source>. Multiple files are in one ScriptContext, and it can be hard to track down an error. It also looks horrible. Is there a way to replace <Unknown Source> with the actual file name? None of the methods I see support passing a File object, so I'm really confused here.

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• Android - Opening phone deletes app state

  - by Tom G

  Hey everyone, I'm writing an android application that maintains a lot of "state" data...some of it I can save in the form of onSaveInstanceState but some of it is just to complex to save in memory. My problem is that sliding the phone open destroys/recreates the app, and I lose all my application state in the process. The same thing happens with the "back" button, but I overloaded that function on my way. Is there any way to overload the phone opening to prevent it from happening? Thanks in advance.

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• .htaccess rewrite issue with P

  - by Cyclone

  This is a followup for this question. When I used the proxy flag, I did not know all of its effects. Now I have two more problems, which need to be fixed! The main problem is with user IP addresses, everyone appears to use the server IP. I can't trust http-x-forwarded-for because it is easy to forge headers, and the REMOTE_ADDR just shows the server IP. I used the P flag because it acted as a mask, but Google loads everything with the actual URL. How can I use this subdomain rewrite without the P flag? It needs to be internal. Thank you for your help!

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• TFS as source-control: what do you love? what do you hate?

  - by jcollum

  I've used TFS for about 18 months now and I'm really not excited about it. It seems like the worst of the current versions of SCMs on the market. I think this thread will help people decide if TFS is for them vs. other source control systems. While TFS does a lot more than that, I think that source control is so critical to software development that any system (or combination thereof) that you pick needs to consider source control first. What are the good things about TFS vs. other source controls -- what does it do well that no one else does? What are the things that TFS is bad at that everyone else seems to do just fine?

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• Call a non member funcion on an instance before is constructed.

  - by Tom

  Hi everyone. I'm writing a class, and this doubt came up. Is this undef. behaviour? On the other hand, I'm not sure its recommended, or if its a good practice. Is it one if I ensure no exceptions to be thrown in the init function? //c.h class C{ float vx,vy; friend void init(C& c); public: C(); ~C(); }; //c.cpp C::C() { init(*this); } void init(C& c) //throws() to ensure no exceptions ? { c.vx = 0; c.vy = 0; } Thanks in advance

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• For each element A[i] of array A, find the closest j such that A[j] > A[i]

  - by SamH

  Hi everyone. Given : An array A[1..n] of real numbers. Goal : An array D[1..n] such that D[i] = min{ distance(i,j) : A[j] > A[i] } or some default value (like 0) when there is no higher-valued element. I would really like to use Euclidean distance here. Example : A = [-1.35, 3.03, 0.73, -0.06, 0.71, -0.21, -0.12, 1.49, 1.41, 1.42] D = [1, 0, 1, 1, 2, 1, 1, 6, 1, 2] Is there any way to beat the obvious O(n^2) solution? The only progress I've made so far is that D[i] = 1 whenever A[i] is not a local maxima. I've been thinking a lot and have come up with NOTHING. I hope to eventually extend this to 2D (so A and D are matrices).

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• Prevent Apache from answering invalid requests

  - by nickdnk

  I have an Apache web-server that acts as a web front-end for iPhone and iPad applications that communicate by POST and JSON only. Is there any way to prevent Apache from answering requests that are invalid? I can see my error log is filled with attempts to open files such as /admin.php /index.php etc - files that don't exist on my server. I believe this is possible with IIS, but can you do the same thing with Apache? Basically I want the request to appear timed out unless you post exactly the right content to the right file - or at least if you do not request an existing file. This would make the server appear non-existing to everyone but my iPhone users as all communication is SSL and directories are not really guess-able. I did disable the ServerTokens and all that, but I still get File not found etc. when I access the server requesting a random file, which is what these bots do constantly.

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• Catch all javascript errors and send them to server

  - by ssaboum

  Hi everyone, i wandered if anyone had experience in handling javascript errors globally and send them from the client browser to a server. I think my point is quite clear, i want to know every exceptions, errors, compilation errors, ... that happens on the client side and send them to the server to report them. I'm mainly using mootools and head.js (for the js side) and django for the server side (not that it matters...). Thank you for your help. Regards.

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• PHP callback function not being called

  - by Industrial

  Hi everyone, I've got the following code: function _callback_memcache_failure($host, $port) { print "memcache '$host:$port' failed"; } $this->memcache = new Memcache; $this->memcache->addServer('192.168.1.35', '11211', 0, 50, 10, TRUE, _callback_memcache_failure('192.168.1.35','11211')); The server is online and running (verified!), but the Failure callback function is being called at each connection. Why is that? Reference: PHP documentation: Memcache::addServer - failure_callback Allows the user to specify a callback function to run upon encountering an error. The callback is run before failover is attempted. The function takes two parameters, the hostname and port of the failed server .

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• How to identify/handle text file newlines in Java?

  - by rafrafUk

  Hi Everyone! I get files in different formats coming from different systems that I need to import into our database. Part of the import process it to check the line length to make sure the format is correct. We seem to be having issues with files coming from UNIX systems where one character is added. I suspect this is due to the return carriage being encoded differently on UNIX and windows platform. Is there a way to detect on which file system a file was created, other than checking the last character on the line? Or maybe a way of reading the files as text and not binary which I suspect is the issue? Thanks Guys !

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• Performance of Serialized Objects in C++

  - by jm1234567890

  Hi Everyone, I'm wondering if there is a fast way to dump an STL set to disk and then read it back later. The internal structure of a set is a binary tree, so if I serialize it naively, when I read it back the program will have to go though the process of inserting each element again. I think this is slow even if it is read back in correct order, correct me if I am wrong. Is there a way to "dump" the memory containing the set into disk and then read it back later? That is, keep everything in binary format, thus avoiding the re-insertion. Do the boost serialization tools do this? Thanks! EDIT: oh I should probably read, http://www.parashift.com/c++-faq-lite/serialization.html I will read it now... no it doesn't really help

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• Call a non member function on an instance before is constructed.

  - by Tom

  Hi everyone. I'm writing a class, and this doubt came up. Is this undef. behaviour? On the other hand, I'm not sure its recommended, or if its a good practice. Is it one if I ensure no exceptions to be thrown in the init function? //c.h class C{ float vx,vy; friend void init(C& c); public: C(); }; //c.cpp C::C() { init(*this); } void init(C& c) //throws() to ensure no exceptions ? { c.vx = 0; c.vy = 0; } Thanks in advance

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• Adding a comment system to my website

  - by MJ93

  Hey everyone, I'm trying to add some type of comment system to my website for the news that I post on the main page. What I would like it to do is have anybody comment on it (they don't need to login). The comment submission form just required a Name and comment. What would be the simplest way to do this? It would also be nice to have it display how many comments there currently are on the news post. I dont need anything fancy. Thanks!

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• What is a 'best practice' backup plan for a website?

  - by HollerTrain

  I have a website which is very large and has a large user-base. I am trying to think of a 'best practice' way to create a back up or mirror website, so if something happens on domain.com, I can quickly point the site to backup.domain.com via 401 redirect. This would give me time to troubleshoot domain.com while everyone is viewing backup.domain.com and not knowing the difference. Is my method the ideal method, or have you enacted better methods to creating a backup site? I don't want to have the site go down and then get yelled at every minute while I'm trying to fix it. Ideally I would just 'flip the switch' and it would redirect the user to a backup. Any insight would be greatly appreciated.

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• PHP display progress messages on the fly

  - by XaviEsteve

  Hi everyone, I am working in a tool in PHP that processes a lot of data and takes a while to finish. I would like to keep the user updated with what is going on and the current task processed. What is in your opinion the best way to do it? I've got some ideas but can't decide for the most effective one: The old way: execute a small part of the script and display a page to the user with a Meta Redirect or a JavaScript timer to send a request to continue the script (like /script.php?step=2). Sending AJAX requests constantly to read a server file that PHP keeps updating through fwrite(). Same as above but PHP updates a field in the database instead of saving a file. Does any of those sound good? Any ideas? Thanks!

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• Zoom controls not showing when using a MapView with fill_parent

  - by Joe

  Hey everyone I am working on an applications and I am using the built in zoom controls. When using a specific size I can see the zoom controls. When using fill_parent the zoom controls are not visible. How it is setup is a mapview inside of a frame layout(also using fill parent for the height and width but with an offset down the screen. The only thing I can think of is the fill parent issue is with the framelayout and the zoom controls are off the screen. Sorry if this is confusing, I confused myself writing it. Thanks in advance

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