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  • Convert a python dict to a string and back

    - by AJ00200
    I am writing a program that stores data in a dictionary object, but this data needs to be saved at some point during the program execution and loaded back into the dictionary object when the program is run again. How would I convert a dictionary object into a string that can be written to a file and loaded back into a dictionary object? This will hopefully support dictionaries containing dictionaries.

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  • Can I update window.location.hash without having the web page scroll?

    - by Jonathon Watney
    Using JavaScript, is there a way to update window.location.hash without scrolling the web page? I have clickable title elements that toggle the visibility of a div directly beneath them. I want the /foo#bar in the history when clicking titles but don't want the page scrolling about. So when navigating away from /foo#bar I'll be able to use the back button and have the div whose ID is in window.location.hash be visible upon return. Is this behavior possible?

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  • Convert NSMutableArray to string and back

    - by Friendlydeveloper
    Hello, in my current project I'm facing the following problem: The app needs to exchange data with my server, which are stored inside a NSMutableArray on the iPhone. The array holds NSString, NSData and CGPoint values. Now, I thought the easiest way to achieve this, was to convert the array into a properly formatted string, send it to my server and store it inside some mySQL database. At this point I'd like to request my data from my server, receive the string, which represents contents of my array and then actually convert it back into a NSMutablArray. So far, I tried something like this: NSString *myArrayString = [myArray description]; Now I send this string to my server and store it inside my mySQL database. That part works really well. However, when I receive the string from my server, I have trouble converting it back into a NSMutableArray. Is there a method, which can easily convert array description back into an array? Unfortunately I couldn't find anything on that so far. Maybe my way of "serializing" the array is wrong right from the start and there is a smarter way to do this. Any help appreciated. Thanks in advance.

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  • In Mercurial, what is the exact step that Peter or me has to do so that he gets back the rolled back

    - by Jian Lin
    The short question is: if I hg rollback, how does Peter get my rolled back version if he cloned from me? What are the exact steps he or me has to do or type? This is related to http://stackoverflow.com/questions/3034793/in-mercurial-when-peter-hg-clone-me-and-i-commit-and-he-pull-and-update-he-g The details: After the following steps, Mary has 7 and Peter has 11. My repository is 7 What are the exact steps Peter or me has to do or type SO THAT PETER GETS 7 back? F:\>mkdir hgme F:\>cd hgme F:\hgme>hg init F:\hgme>echo the code is 7 > code.txt F:\hgme>hg add code.txt F:\hgme>hg commit -m "this is version 1" F:\hgme>cd .. F:\>hg clone hgme hgpeter updating to branch default 1 files updated, 0 files merged, 0 files removed, 0 files unresolved F:\>cd hgpeter F:\hgpeter>type code.txt the code is 7 F:\hgpeter>cd .. F:\>cd hgme F:\hgme>notepad code.txt [now i change 7 to 11] F:\hgme>hg commit -m "this is version 2" F:\hgme>cd .. F:\>cd hgpeter F:\hgpeter>hg pull pulling from f:\hgme searching for changes adding changesets adding manifests adding file changes added 1 changesets with 1 changes to 1 files (run 'hg update' to get a working copy) F:\hgpeter>hg update 1 files updated, 0 files merged, 0 files removed, 0 files unresolved F:\hgpeter>type code.txt the code is 11 F:\hgpeter>cd .. F:\>cd hgme F:\hgme>hg rollback rolling back last transaction F:\hgme>cd .. F:\>hg clone hgme hgmary updating to branch default 1 files updated, 0 files merged, 0 files removed, 0 files unresolved F:\>cd hgmary F:\hgmary>type code.txt the code is 7 F:\hgmary>cd .. F:\>cd hgpeter F:\hgpeter>hg pull pulling from f:\hgme searching for changes no changes found F:\hgpeter>hg update 0 files updated, 0 files merged, 0 files removed, 0 files unresolved F:\hgpeter>type code.txt the code is 11 F:\hgpeter>

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  • popViewController does not autorotate back to allowed orientation

    - by JoeGaggler
    I have two UIViewControllers, "A" and "B", where "A" overrides the shouldAutorotateToInterfaceOrientation to return YES for UIInterfaceOrientationPortrait, and "B" returns YES for all orientations. In my example "A" is the root navigation view controller, and I then use pushViewController for "B". After that I rotate the device into landscape, which successfully autorotates "B", then I pop "B" (back button or via popViewController) to return to "A". When targetting iPhone OS 3.1.3, "A" returns to the portrait orientation as expected. When targetting iPhone OS 3.2, I have two side-effects: "A" is displayed in landscape. The navigation bar does not update even though "A" is now displayed. The navigation bar still shows the items for "B". Only after trying to go back/pop one more time will the navigation bar animate to show the items for "A". If I instead attempt to push "B" again and go back, I have to pop twice before the navigation bar animates to show the items for "A". During these "intermediate pops" the view for "A" remains displayed. While researching this issue, I have seen other answers suggesting performing the rotation manually ([UIDevice setOrientation] or via a tranformation), however this does not help understand what the problem is, especially why it behaves differently between the two OS's. So my question is: must all of my UIViewControllers on the UINavigationController stack support exactly the same orientations going forward? And if not, then is there something that I need to do to make it behave as it did for OS 3.1.3?

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  • Issue with clipping rectangles and back to front rendering

    - by Milo
    Here is my problem. My rendering algorithm renders from back to front. But logically, clipping rectangles need to be applied from front to back. Hence why the following does not work: void AguiWidgetManager::recursiveRender(const AguiWidget *root) { //recursively calls itself to render widgets from back to front AguiWidget* nonConstRoot = (AguiWidget*)root; if(!nonConstRoot->isVisable()) { return; } //push the clipping rectangle if(nonConstRoot->isClippingChildren()) { graphicsContext->pushClippingRect(nonConstRoot->getClippingRectangle()); } if(nonConstRoot->isEnabled()) { nonConstRoot->paint(AguiPaintEventArgs(true,graphicsContext)); for(std::vector<AguiWidget*>::const_iterator it = root->getPrivateChildBeginIterator(); it != root->getPrivateChildEndIterator(); ++it) { recursiveRender(*it); } for(std::vector<AguiWidget*>::const_iterator it = root->getChildBeginIterator(); it != root->getChildEndIterator(); ++it) { recursiveRender(*it); } } else { nonConstRoot->paint(AguiPaintEventArgs(false,graphicsContext)); for(std::vector<AguiWidget*>::const_iterator it = root->getPrivateChildBeginIterator(); it != root->getPrivateChildEndIterator(); ++it) { recursiveRenderDisabled(*it); } for(std::vector<AguiWidget*>::const_iterator it = root->getChildBeginIterator(); it != root->getChildEndIterator(); ++it) { recursiveRenderDisabled(*it); } } //release clipping rectangle if(nonConstRoot->isClippingChildren()) { graphicsContext->popClippingRect(); } } I could ofcourse go to the top of the tree, then apply clipping rectangles inward until I get to the currently rendered widget, but that would involve lots of clipping rectangles @ 60 frames per second. I want to minimize calls to pushing and popping rectangles. What could I do, Thanks

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  • Rotating an object in OpenGL ES for iPhone [translate to origin --> rotate --> translate back is not

    - by ayanonagon
    I recently started working with OpenGL ES for the iPhone, and I am having a bit of trouble with it. I want to be able to rotate an object with your fingers. My problem is that I have my object placed at (0, 0, -3), and I would like to rotate it about its center. I know that I need to translate back to the origin, rotate, and then bring it back to the original place. I think I am facing a problem because I am using a matrix to keep track (?) of all of my rotations/translation/scaling etc, and I think it may be combining the operations in a way that order is not even considered (so the two translations would cancel each other). I just started learning OpenGL a day ago and am a complete newbie, so my assumption may be wrong. Here is the part of the in drawView that I am having trouble with: GLfloat matrix[16]; glGetFloatv(GL_MODELVIEW_MATRIX, matrix); glLoadIdentity(); glTranslatef(0, 0, 3); // bring to origin glRotatef(self.angle, self.dy, self.dx, 0); // rotate glTranslatef(0, 0, -3); // put it back in place glMultMatrixf(matrix); // save the transformations performed Help would be much appreciated, thank you!

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  • Inside what the TexBox value is posted back? ViewState or post back data?

    - by burak ozdogan
    In one article I was reading on ViewState, I saw a sentence saying that I should not fall into a mistake to believe that the value of a TextBox is stored in ViewState; it is stored in PostBack data. From here what I understand is when I post back a web form, the input controls values are stored in HTTP Request body. Not in the Viewstate. But as far as I know ViewState values are stored in an hidden field called __VIEWSTATE anyway. Then does it mean that __VIEVSTATE value is not posted in HTTP POST Request body as a postback data? Sounds nonesense to me. In another words, basically if I say the ViewState mechanism for such scenerio works like this, am I seeing it right or skipping something: You enter a value on an empty TextBox and submit the page The value of text box is posted back inside POST HTTP Request body. Nothing inside __VIEWSTATE at this point from the TextBox On the server side, the TextBox is created with the default value on OnInit method of the page The TrackChange property of ViewState is set to true. The posted back data of TextBox is loaded. Because it is different than the TextBox defalut value(because the user entered something), the ViewState of this text box is marked as DIRTY. The new value of the textbox is written into __VIEWSTATE hidden field From now on __VIEWSTATE hiddenfeild contains the last given value of the TextBox The page is sent to the user's browser having the __VIEWSTATE hidden field. But this time containing the last value entered by user which will be ready to be rendered Thanks guys! burak ozdogan

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  • how can i change the back arrow in navigation toolbar function

    - by jackrobert
    hi i have developed simple web application using jsp... Step 1 : I have one login page : (contains username ,password and sumbit button) Step2 : I have one logout page : it has one link (Go to login page), just u click this link go to login page.. step3 : And i have some pages like (page1,page2,page3, page4.....) Normal application working following way : after login comes page1.. Then click some action and it will go to page2 Then i click some action and it will goto page3 Then i click some action and it will goto page4 So now i am in page4... now click back arrow in navigation toolbar in browser, generally go to previous page (page3). For example... If u seeing gmail inbox msg... that time u click back arrow..then automatically go to previous page.. But i need , if click back arrow in navigation toolbar (from any page in my application) ,then go to logout page... For example.... Suppose i am in page4... here i click backarrow in browser then i want to go logout page, don't go to page3 how to acheive this... Is there any possible....Any javascript or any otherway pls help me...

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  • Jquery animate negative top and back to 0 - starts messing up after 3rd click

    - by Daniel Takyi
    The site in question is this one: http://www.pickmixmagazine.com/wordpress/ When you click on one of the posts (any of the boxes) an iframe will slide down from the top with the content in it. Once the "Home" button in the top left hand corner of the iframe is clicked, the iframe slides back up. This works perfectly the first 2 times, on the 3rd click on of a post, the content will slide down, but when the home button is clicked, the content slides back up normally but once it has slid all the way up to the position it should be in, the iframe drops straight back down to where it was before the home button was clicked, I click it again and then it works. Here is the code I've used for both sliding up and sliding down functions: /* slide down function */ var $div = $('iframe.primary'); var height = $div.height(); var width = parseInt($div.width()); $div.css({ height : height }); $div.css('top', -($div.width())); $('.post').click(function () { $('iframe.primary').load(function(){ $div.animate({ top: 0 }, { duration: 1000 }); }) return false; }); /* slide Up function */ var elm = parent.document.getElementsByTagName('iframe')[0]; var jelm = $(elm);//convert to jQuery Element var htmlElm = jelm[0];//convert to HTML Element $('.homebtn').click(function(){ $(elm).animate({ top: -height }, { duration: 1000 }); return false; })

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  • Are there any simple, stupid, module based, cross-platform, c++ projects that I can check out of a r

    - by leeand00
    I'm looking for one just to get a general idea of how a standard C++ project should be properly setup. (If that's possible... :-p) Here are my requirements for this project: module-based (has libraries/modules that compile into a main program module) compiles cross-platform I'd like to do this so that I can get a hold on the basics of how a good C++ project is setup, and so that I can test out Premake.

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  • C++: casting to void* and back

    - by MInner
    * ---Edit - now the whole sourse* When I debug it on the end, "get" and "value" have different values! Probably, I convert to void* and back to User the wrong way? #include <db_cxx.h> #include <stdio.h> struct User{ User(){} int name; int town; User(int a){}; inline int get_index(int a){ return town; } //for another stuff }; int main(){ try { DbEnv* env = new DbEnv(NULL); env->open("./", DB_CREATE | DB_INIT_MPOOL | DB_THREAD | DB_INIT_LOCK | DB_INIT_TXN | DB_RECOVER | DB_INIT_LOG, 0); Db* datab = new Db(env, 0); datab->open(NULL, "db.dbf", NULL, DB_BTREE, DB_CREATE | DB_AUTO_COMMIT, 0); Dbt key, value, get; char a[10] = "bbaaccd"; User u; u.name = 1; u.town = 34; key.set_data(a); key.set_size(strlen(a) + 1 ); value.set_data((void*)&u); value.set_size(sizeof(u)); get.set_flags(DB_DBT_MALLOC); DbTxn* txn; env->txn_begin(NULL, &txn, 0); datab->put(txn, &key, &value, 0); datab->get(txn, &key, &get, 0); txn->commit(0); User g; g = *((User*)&get); printf("%d", g.town); getchar(); return 0; }catch (DbException &e){ printf("%s", e.what()); getchar(); } solution create a kind of "serializator" what would convert all POD's into void* and then will unite these pieces PS Or I'd rewrite User into POD type and everything will be all right, I hope. Add It's strange, but... I cast a defenetly non-pod object to void* and back (it has std::string inside) and it's all right (without sending it to the db and back). How could it be? And after I cast and send 'trough' db defenetly pod object (no extra methods, all members are pod, it's a simple struct {int a; int b; ...}) I get back dirted one. What's wrong with my approach? Add about week after first 'add' Damn... I've compiled it ones, just for have a look at which kind of dirt it returnes, and oh! it's okay!... I can't ! ... AAh!.. Lord... A reasonable question (in 99.999 percent of situations right answer is 'my', but... here...) - whos is this fault? My or VSs?

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  • SQL SERVER – Transcript of Learning SQL Server Performance: Indexing Basics – Interview of Vinod Kumar by Pinal Dave

    - by pinaldave
    Recently I just wrote a blog post on about Learning SQL Server Performance: Indexing Basics and I received lots of request that if we can share some insight into the course. Here is 200 seconds interview of Vinod Kumar I took right after completing the course. We have few free codes to watch the course, please your comment at http://facebook.com/SQLAuth and we will few of first ones, we will send the code. There are many people who said they would like to read the transcript of the video. Here I have generated the same. Pinal: Vinod, we recently released this course, SQL Server Indexing. It is about performance tuning. So tell me – how do indexes help performance? Vinod: I think what happens in the industry when it comes to performance is that developers and DBAs look at indexes first.  So that’s the first step for any performance tuning exercise, indexing is one of the most critical aspects and it is important to learn it the right way. Pinal: Correct. So what you mean to say is that if you know indexing you can pretty much tune any server and query. Vinod: So I might contradict my false statement now. Indexing is usually a stepping stone but it does not lead you to the end. But it’s good to start with indexing and there are lots of nuances to indexing that you need to understand, like how SQL uses indexing and how performance can improve because of the strategies that you have made. Pinal: But now I’m confused. First you said indexes are good, and then you said that indexes can degrade your performance.  So what is this course about?  I mean how does this course really make an impact? Vinod: Ok -so from the course perspective, what we are trying to do is give you a capsule which gives you a good start. Every journey needs a beginning, you need that first step.  This course is that first step in understanding. This is the most basic, fundamental course that we have tried to attack. This is the fundamentals of indexing, some of the key things that you must know about indexing.   Some of the basics of indexing are lesser known and so I think this course is geared towards each and every one of you out there who wants to understand little bit more about indexing. Pinal: So what I understand is that if I enrolled in this course I will have a minimum understanding about indexing when dealing with performance tuning.  Right? Vinod: Exactly. In this course is we have tried to give you a nice summary. We are talking about clustered indexing, non clustered indexing, too many indexes, too few indexes, over indexing, under indexing, duplicate indexing, columns tune indexing, with SQL Server 2012. There’s lot’s to learn. Pinal: You can see the URL [http://bit.ly/sql-index] of the course on the screen. Go ahead, attend, and let us know what you think about it. Thank you. Vinod: Thank you. Reference: Pinal Dave (http://blog.sqlauthority.com) Filed under: PostADay, SQL, SQL Authority, SQL Index, SQL Performance, SQL Query, SQL Server, SQL Tips and Tricks, SQLServer, T SQL, Technology, Video

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  • Software buttons in the android 4.2 emulator not showing up (tablet)

    - by The_Unknown
    I'm getting crazy right now. I just installed the latest android adt bundle from http://developer.android.com/sdk/index.html. It's version v21.0.0. Now I wanted to test my tablet app (designed for 10.1" xlarge mdpi) in the emulator, but I cannot get any software buttons for home/back/... Here's my device configuration. This config is afterwards assigned to the avd. http://i.stack.imgur.com/Q7xvP.png Hardware-buttons don't work as well (you cannot set hardware buttons in a tablet-like emulator). The target api is level 15 (android 4.0.3). I searched stackoverflow, but didn't find any help concerning the latest version of android. Since time's running away a little, any quick help would be great! Thanks in advance. Bye The_Unknown

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  • MySQL replication hung after slave goes offline and comes back online again

    - by Ed Manet
    I have a master server and several slave servers replicating a single database. I am using in MySQL 5.0 in SLES 11. During fault tolerance testing I found that when the slave's network connection is broken (cable un-plugged) and then restored, replication hangs. It shows no errors and the slave appears to be running but the Read_Master_Log_Pos and Exec_Master_Log_Pos values do not match the log postion on the master server. The Slave_IO_State is "Waiting for master to send event". The Slave_IO_Running and Slave_SQL_Running values are both are "Yes". The Master_Log_File and Relay_Master_Log_File match. If I stop and start the slave or restart the mysql daemon, replication starts working again. Any ideas on what I can do about this?

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  • Automatically Snapshoting AWS instances (or other back up strategy)

    - by user1172468
    I just realized that my aws instance count has risen into the double digits. I'm currently backing portions of my folders and dbs and moving them off to a backup instance. What I think I should be doing is taking a snapshot of the instances (automatically) and persisting them on S3 so I have a running 7 day collection of daily backups. There is a question asking the same thing here, however the answers don't go into depth. So the closest answer seems to be: use a cron job to snapshot the instance. So do I run the cron job on the instance itself? or do I have a micro instance to run these snapshots? Could I get an example script or the command for say a linux flavor? what software must I have installed to get this to run? Thanks.

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  • Excel shortcut: switching back and forth between that last active sheet and the current exit sheet

    - by thomasssssss
    I know the shortcut CRTL + page up/down but I need the similar function that exists eg in internet explorer: Shift + alt I found a macro that is close but does not entirely solve the problem: If ActiveSheet.Name = "To Do" Then Sheets("Budget").Activate ElseIf ActiveSheet.Name = "Budget" Then Sheets("To Do").Activate I can name the A1 cell with the sheet name and use search (f5) and type the name, but this is to cumbersome. Any ideas, guys?

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  • Ubuntu, trouble getting back from lock screen

    - by Navid
    My problem is that after being idle for a while, the screen is locked and after this happened I get a black screen from which I can't get rid of. I mean after black screen comes, typing and moving mouse does not bring any new screen, and even alt+ctrl+F1 to F7 changes nothing. All I can do is to restart the system. Can anybody help me with this?

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  • How to back up server with rsync, preserving ownership/permissions without root login

    - by olilarkin
    I am setting up a backup server on which I want to run rsync over ssh to backup content on other servers every night. I would like to set up ssh keys to make it password-less, but I want to preserve ownership of files and permissions. There are a number of users on the server to be backed up which won't all exist on the backup server. What would be the best way to do this? I guess the backup job will need to connect as root to , but I don't want to enable root ssh access on the servers. thanks for any tips, oli ps, all servers are running UBUNTU Server 12.04 LTS and are behind a university firewall.

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  • How to get my W2003-server (back) into the web (after setting up bridged networking)

    - by MBaas
    I have recently set up Virtualbox on a W2003-Server (which is also used as webserver, accessed from the web). My vbox worked nicely, but then I wanted more, I wanted to have the vm appear in the intranet like any ordinary pc. I was advised to setup bridged networking as opposed to NAT. I did so, and in the server's network connections have bridged the LAN-Connection and the "VirtualBox Host-Only Network" (yes, it says "host only network", but I assure that VBox networking is configured to use network bridge). So now my VM is visible in the intranet and it also has www-accesss, the server can also access the web. The only problem that came up is that the server is no longer accessible from the web. I've traced an HTTP-Request and it says "Can't connect to *:80 (connect: No route to host)". So maybe something in the router's config needs to be adjusted (yeah, well, the server's IP-Address changed from 192.168.1.199 to ...198). So I went into the router-config, reviewed port-forwarding for port 80 and adjusted the IP there, but it still didn't work. Unsure if it was a router-problem or rather something in the server's config, I've setup a "demilitarized zone" in the router and have put the server into it. (My understanding is that this would put the server straight into the web...) But the result of the HTTP-Requests is still the same :(

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  • Bash Script to Back Up Backs Up Itself

    - by Jay LaCroix
    I have the following bash script that creates a tar.gz of my filesystem on a Kubuntu PC. The problem is, that it also tries to backup the tar.gz backup file, even though I am storing the backup in /tmp and omitting /tmp from the backup. I am wondering why it's backing up the file in /tmp even though I told it not to. #!/bin/bash # init DATE=$(date +20%y%m%d) sudo tar -cvpzf /tmp/`hostname`_$DATE.tar.gz \ --exclude=/proc \ --exclude=/lost+found \ --exclude=/sys \ --exclude=/mnt \ --exclude=/media \ --exclude=/dev \ --exclude=/tmp \ --exclude=/home/jlacroix/Desktop \ --exclude=/home/jlacroix/Documents \ --exclude=/home/jlacroix/Music \ --exclude=/home/jlacroix/Pictures \ --exclude=/home/jlacroix/Projects \ --exclude=/home/jlacroix/Roms \ --exclude=/home/jlacroix/Videos \ --exclude=/home/jlacroix/.VirtualBox\ VMs \ --exclude=/home/jlacroix/.SpiderOak \ / scp /tmp/`hostname`_$DATE.tar.gz jlacroix@Pluto:/share/Recovery/Snapshots sudo rm /tmp/`hostname`_$DATE.tar.gz

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  • Mozilla Thunderbird 3.0.10: Messages are being sent back to me

    - by punkinette64
    When I send an email and I get a response, more often than not, in the To: is my email address. However, my email address also ends up in the From: column.The reply-from address is nowhere to be found;so I don't have any address with which I can send my reply, as both of them have just my email address. What am I doing wrong here? Is there some set-up in my Tools Options which is incorrect? The set-up in Options is pretty difficult to understand and it doesn't offer any to or reply-from choices. This is critical because I just cannot answer my emails because there is no one I can send a reply to.

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  • Rework filename from mod_pagespeed back to normal files

    - by British Sea Turtle
    I am hoping someone can help me with this problem. I am moving to a new server and not using mod_pagespeed any more. However We not that we have lots of external links that link to images on our server using the strange mod_pagespeed filenames. This is not an issue but we do not want to have lots of 404 errors. So I have lots of links like the following : http://www.domain.com/images/150x150xlink.png.pagespeed.ic.pPXw45HSQm.png http://www.domain.com/images/paris_01.gif.pagespeed.ce.vfrkuKUaj0.gif http://www.doamin.com/images/1st2.gif.pagespeed.ce.OUg38q6VbZ.gif How can I redirect them to : http://www.domain.com/images/150x150xlink.png http://www.domain.com/images/paris_01.gif http://www.doamin.com/images/1st2.gif There are thousands of files like this so I am hoping for a simple solution with mod_rewrite, I tried this but it does not work. So any help would be appreciated. RewriteCond %{REQUEST_URI} \.gif\.pagespeed\. [NC] RewriteRule ^(.*?\.gif)\..*\.gif$ $1 [NC,L]

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