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  • What are some ways people deploy relational database changes using Node.js? [closed]

    - by JamesEggers
    I've been diving more and more into Node.js and hosting services like Heroku and Nodejitsu recently and have been trying to figure out how to best deploy database changes for postgres or mysql. There are a few migration projects under npm that I can see; however, all seem to be really buggy or just not work. I currently manage the Monarch migration project on npm, but it's currently buggy itself and my experiences developing such utilities are in other, more procedural, languages. So what do people use to deploy changes to their databases on these environments? What has worked for people? I'm looking for a better understanding of what the current situation/process looks like.

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  • Should a complete newbie use mongoose js? [on hold]

    - by Squirrl
    I drank from the koolaid and jumped aboard the node.js bandwagon even though I barely know javascript. That said, I have the opportunity to work with one of 2 templates. One is just node, express and mongodb, and the second includes mongoose and jade with the other 3 and is easier for me to understand. Yet I'm concerned that if I begin with mongoose, I'll be too high level and miss some of the fundamentals. Is my concern warranted? Should I work my way up or should I just start playing with all the toys from day one?

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  • jquerymobile - include .js and .html

    - by Girija
    Hi, I have described the my problem in the following lines. Kindly clarify me. In my application,I am using more than html page for displaying the content and each page have own .js file. When I call the html page then .js file also included. In the .js,I am using $('div').live('pageshow',function(){}). I am calling the html file from the .js(using $.mobile.changePage("htmlpage")). My problem : consider, I have two html files. second.html file is called with in the one.js. when I show the second.html, that time one.js is reload again. I am getting the alert "one.js" then "second.js" Please help me. Thanks in advance. Please point out my mistake. I have attached the code. one.html <!DOCTYPE html> <html> <head> <title>Page Title</title> <link rel="stylesheet" href="jquery.mobile-1.0a2.min.css" /> <script src="jquery-1.4.3.min.js"></script> <script src="jquery.mobile-1.0a2.min.js"></script> <script src="Scripts/one.js"></script> </head> <body> <div data-role="page"> </div> </body> </html> Second.html <!DOCTYPE html> <html> <head> <title>Sample </title> <link rel="stylesheet" href="../jquery.mobile-1.0a2.min.css" /> <script src="../jquery-1.4.3.min.js"></script> <script src="../jquery.mobile-1.0a2.min.js"></script> <script type="text/javascript" src="Scripts/second.js"></script> </head> <body> <div data-role="page"> <div data-role="button" id="link" >Second</div> </div><!-- /page --> </body> </html> one.js $('div').live('pageshow',function() { alert("one.js"); //AJAX Calling //success result than call the second.html $.mobile.changePage("second.html"); }); second.js $('div').live('pageshow',function(){ { alert('second.js'); //AJAX Calling //success result than call the second.html $.mobile.changePage("third.html"); }); Note : When I show forth.html that time the following files are reload(one.js,second.js,third,js and fourth.js. But I need fourth.js alone). I tried to use the $.document.ready(function(){}); but that time .js did not call. :( :( :(

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  • How to debug node.js applications

    - by Fabian Jakobs
    How do I debug a node.js server application? Right now I'm mostly using alert debugging with print statements like this: sys.puts(sys.inspect(someVariable)); There must be a better way to debug. I know that google Chrome has a command line debugger. Is this debugger available for node.js as well?

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  • Dismount USB External Drive using powershell

    - by JC
    Hello, I am attempting to dismount an external USB drive using powershell and I cannot successfuly do this. The following script is what I use: #get the Win32Volume object representing the volume I wish to eject $drive = Get-WmiObject Win32_Volume -filter "DriveLetter = 'F:'" #call dismount on that object there by ejecting drive $drive.Dismount($Force , $Permanent) I then check my computer to check if drive is unmounted but it is now. The boolean parameters $force and $permanent have been tried with different permutations to no avail. The exit code returned by the dismount command changes when the params are toggled. (0,0) = exit code 0 (0,1) = exit code 2 (1,0) = exit code 0 (1,1) = exit code 2 The documentation for exit code 2 indicates that there are existing mount points as a reason why it cannot dismount. Although I am trying to dismount the only mount point that exists so I am unsure what this exit code is trying to tell me. Having already trawled the web for people experiencing similar problems I have only found one additional command to try and that is the following: # executed after the .Dismount() command $drive.Put() This additional command does not help. I am running out of things to try, so any assistance anyone can give me would be greatly appreciated, Thanks.

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  • Stream data with Node.js

    - by Saif Bechan
    I want to know if it is possible to stream data from the server to the client with Node.js. From what I can understand all over the internet is that this has to be possible, yet I fail to find a correct example or solution. What I want is a single http post to node.js with AJAX. Than leave the connection open and continuously stream data to the client. The client will receive this stream and update the page continuously.

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  • PHP Form POST to external URL with Redirect to another URL

    - by Marlon
    So, what I am trying to accomplish is have a self-posting PHP form, POST to an external page (using CURL) which in turn redirects to another page. Currently, what is happening is that once I click "Submit" on the form (in contact.php) it will POST to itself (as it is a self-posting form). The script then prepares the POST using CURL and performs the post. The external page does its processing and then, the external page is supposed to redirect back to another page, in a referring domain. However, what happens instead, is that it seems like the contact.php page loads the HTML from the page the external page redirected to, and then, the contact.php's HTML loads after that, ON THE SAME PAGE. The effect, is what looks like two separate pages rendered as one page. Naturally, I just want to perform the POST and have the browser render the page it is supposed to redirect to as specified by the external page. Here is the code I have so far: <?php if(isset($_POST['submit'])) { doCURLPost(); } function doCURLPost() { $emailid = "2, 4"; $hotel = $_POST['hotel']; //you will need to setup an array of fields to post with //then create the post string $data = array ( "recipient" => $emailid, "subject" => "Hotel Contact Form", "redirect" => "http://www.localhost.com/thanx.htm", "Will be staying in hotel: " => $_POST['hotel'], "Name" => $_POST['Name'], "Phone" => $_POST['Phone'], "Comments" => $_POST['Comments']); $ch = curl_init(); curl_setopt($ch, CURLOPT_URL, "http://www.externallink.com/external.aspx"); curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true); curl_setopt($ch, CURLOPT_POST, true); curl_setopt($ch, CURLOPT_POSTFIELDS, $data); curl_setopt($ch, CURLOPT_HTTPHEADER, array("Referer: http://www.localhost.com/contact.php")); $output = curl_exec($ch); $info = curl_getinfo($ch); curl_close($ch); } ?>

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  • Force spin-down of external hard-drive on linux (raspberry pi)

    - by user258346
    I'm currently setting up a home-server using a Raspberry Pi with an external hard-disk connected via usb. However, my hard-drive will never spin down when being idle. I tried already the hints provided at raspberrypi.org ... without any success. 1.) sudo hdparm -S5 /dev/sda returns /dev/sda: setting standby to 5 (25 seconds) SG_IO: bad/missing sense data, sb[]: 70 00 04 00 00 00 00 0a 00 00 00 00 44 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 2.) sudo hdparm -y /dev/sda returns /dev/sda: issuing standby command SG_IO: bad/missing sense data, sb[]: 70 00 04 00 00 00 00 0a 00 00 00 00 44 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ...and 3.) sudo sdparm --flexible --command=stop /dev/sda returns /dev/sda: HDD 1234 ... without spin-down of the drive. I use the following hardware: Inateck FDU3C-2 dual Ports USB 3.0 HDD docking station Western Digital WD10EZRX Green 1TB Is it possible, that the sent spin-down-signals are somewhere overwritten/lost/ignored?

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  • Toshiba External Hard Drive freezes computer

    - by Ephraim
    I bought a Toshiba Canvio Basics E05A032BAU2XK Portable External 320GB 2.5 Hard Drive: My computer has two Os's on it Win7 and Win XP. I need both. The main one I use is XP. When booting my computer in any OS the computer and hard drive work fine. The same holds true for plugging in the hard drive while running Win7. However, when running WinXP, if the hard drive gets plugged in the computer freezes(my main point is that the HD is portable so it is essential that it does not do this, as I said I usually run XP). After reading some online forums I was informed that there is a compatibility issue with the newest version of Eset Smart Security(I still don't understand this because it works fine in Win7 or when connected on boot...). I disabled the AV and plugged in the HD... Walla! The comnputer did not freeze. However the disk is not recognized in explorer or disk management. In device manager I removed the device and did a scan and installation of device failed. It pretty much sounds like a driver issue but I cannot find any drivers for this HD. In fact, Toshiba claims that there are no downloadable drivers for it and that XP should take care of the drivers itself. What to do? As far as I can tell, all other USB devices work just fine on both OS. Please Help!

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  • JS: I'm not getting the scope

    - by Manuel
    Hi there, I'm trying to modify CouchDB's JS API to work asynchronous, but there is an error I cannot solve: Please find my JS API find at pastebin. If I call (new CouchDB("dbname")).designDocs() (line 193) I get an error because the okCallback function is not defined in the callback function. I don't know why; it should be defined in this scope.. Any hints are very welcome! Cheers, Manuel

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  • Formatting an external HDD stuck at 70%

    - by mahmood
    My external HDD which is a 250GB WD (powered by USB) seems to have problem! Whenever i try to copy some files, it stuck while copying. I decided to format it. So I used windows tool and performed the format (not quickly) however at nearly 70% it stuck. Then I decided to perform a low level format with lowlevel. Again it stuck at 70%. I endup that the HDD has bad sector. So is there any tool that mark the bad sectors and bypass them? It is not very reasonable to through 250GB because of some bad sectors! P.S: I saw a similar topic but there were no conclusion there either. The smart data is Attribute, raw value, value, threshold, status Read Error Rate, 50, 200, 51, OK Spin-Up Time, 3275, 154, 21, OK Start/Stop Count, 2729, 98, 0, OK Reallocated Sectors Count,0, 200, 140, OK Seek Error Rate, 0, 100, 51, OK Power-On Hours (POH), 1057, 99, 0, OK Spin Retry Count, 0, 100, 51, OK Recalibration Retries ,0, 100, 51 , OK Power Cycle Count, 1385, 99, 0, OK Power-off Retract Count, 425, 200, 0, OK Load /Unload Cycle Count,12974, 196, 0, OK Temperature, 43, 43, 0, OK Reallocation Event Count,0, 200, 0, OK Current Pending Sector Count,23,200, 0, Degradation Uncorrectable Sector Count, 0, 100, 0, OK UltraDMA CRC Error Count,6, 200, 0, OK Write Error Rate/Multi-Zone Error Rate,0,100,51, OK It seems that the most important thing is this line Current Pending Sector Count,23,200, 0, Degradation Any idea on that?

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  • Clientside going serverside with node.js

    - by Sveisvei
    Hello, I`ve been looking for a serverside language for some time, and python got my attention somewhat. But as I already know and love javascript, I now want learn to code on the server with js and node.js. Now, what books and what subjects do I need to learn to understand the serverside world better? (let me know if Im to vague)

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  • SIFR vs Cufon vs Typeface.js

    - by Abi Noda
    With browser support / licensing issues of @font-face (a feature of CSS3), which intermediate option do you prefer? Cufon,Typeface.js, or SIFR? Cufon is new but has been getting a lot of praise from the web design community, how does it differ from Typeface.js ?

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  • Dropped WD External Harddisk, now it's shown as "Not initialized"

    - by Phelios
    So, the WD my passport external harddisk is dropped, and after that, the computer is unable to read it anymore. I was hopping if I can just find another case to try if the harddisk is still readable, but looks like the hard drive itself is not a normal SATA or PATA drive. I think it's modified. So, I can't find another case that I can try on. In the computer, I still can see the drive in the "Disk Management", but it's shown as Uninitialized, no size, and no drive letter. I've also tried a couple of recovery tools. Some can't detect at all, there is one (find and mount software) that can detect but shows 0 size. None of them can recover the data. WD is willing to replace it with a new one, but I still need to recover the data. Any way I can recover the data? UPDATE: I tried initialized it from the windows Disk Manager, but it give error "The request could not be performed because of an I/O device error."

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  • external drive and CentOS - Reset high speed USB device number

    - by Phil
    I have 2 external drives (3TB) and both will not work with my centOS Box. Tested them in windows ( different machine ) No problems ( 2.6.32-279.9.1.el6.i686 ) dmesg reports: usb 2-2: new high speed USB device number 3 using ehci_hcd usb 2-2: New USB device found, idVendor=2109, idProduct=0700 usb 2-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3 usb 2-2: Product: USB 3.0 SATA Bridge usb 2-2: Manufacturer: VIA Labs, Inc. usb 2-2: SerialNumber: 0000000000006121 usb 2-2: configuration #1 chosen from 1 choice scsi6 : SCSI emulation for USB Mass Storage devices usb-storage: device found at 3 usb-storage: waiting for device to settle before scanning usb-storage: device scan complete scsi 6:0:0:0: Direct-Access ST3000DM 001-9YN166 CC4B PQ: 0 ANSI: 2 sd 6:0:0:0: Attached scsi generic sg3 type 0 sd 6:0:0:0: [sdd] Very big device. Trying to use READ CAPACITY(16). sd 6:0:0:0: [sdd] 5860533165 512-byte logical blocks: (3.00 TB/2.72 TiB) sd 6:0:0:0: [sdd] Write Protect is off sd 6:0:0:0: [sdd] Mode Sense: 00 06 00 00 sd 6:0:0:0: [sdd] Assuming drive cache: write through sd 6:0:0:0: [sdd] Very big device. Trying to use READ CAPACITY(16). sd 6:0:0:0: [sdd] Assuming drive cache: write through sdd: sdd1 sd 6:0:0:0: [sdd] Very big device. Trying to use READ CAPACITY(16). sd 6:0:0:0: [sdd] Assuming drive cache: write through sd 6:0:0:0: [sdd] Attached SCSI disk Tyring to use cfdisk / fdisk / gdisk or even fdisk -l results in the program hanging and dmesg reports: usb 2-2: reset high speed USB device number 3 using ehci_hcd usb 2-2: reset high speed USB device number 3 using ehci_hcd usb 2-2: reset high speed USB device number 3 using ehci_hcd I have the same 2 drives physically installed in the computer via SATA Any Ideas?

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  • node.js database

    - by Justin
    I'm looking for a database to pair with a node.js app. I'm assuming a json/nosql db would be preferable to a relational db [I can do without any json/sql impedence mismatch]. Considering couchdb mongodb redis Anyone have any views / war stories re compatiability/deployability of the above with node.js ? Any clear favourites ?

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  • External Dell Display doesn't work with MacBook Pro (2011) after Thunderbolt Firmware Update (1.0 and 1.2)

    - by tom
    Today two Thunderbolt Firmware Updates (1.0 and 1.2) became available for my MacBook Pro (Early 2011). After installing both, my external monitor, a Dell U2713HM, does no longer work. The system detects the display, but the display shows only black. An Apple Thunderbolt display works fine and a MacBook Air can use the Dell monitor without problems. My MacBook Pro can use the Dell monitor just fine when I boot from a USB stick. Therefore, clearly the Thunderbolt Firmware Update seems to be the problem. Does anyone have the same problem? Any solutions or workarounds? I guess there is no way to remove a Thunderbolt Firmware Update once it's installed, right? Update 24.10.2013: Is there no one else with this problem? In the meantime I tried three different cables – none worked. My colleague with the same generation MacBook Pro also can't use my display after installing the firmware update. All colleagues with MacBook Airs and newer MacBook Pros (all didn't receive the firmware update) can use the display. Update 29.10.2013: Wow, ok today my new MacBook Pro Retina 13' (Late 2013) arrived. Guess what, I cannot use the display with it. Only HDMI works – not with the full resolution.

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  • External-Harddisk drive couldn't run unless in safe mode

    - by zfm
    This is the strangest thing ever happened to me... I have an external harddisk drive (ext-HDD), bought around 2 years ago (don't know whether this is an important issue or not). Here, I have a video file (.avi) in my internal harddisk dive (HDD), it worked very well, then I copy it to my ext-HDD, but I couldn't run the file directly from my ext-HDD! I tried to copy it back to my HDD (from the ext-HDD), and now the copy couldn't be run on my HDD too. Remember that I copy the file, so the original one was still there. I tried to go to safe mode (forget to mention, I use Windows 7 Pro), and this is where the strange thing happened, the copied files (both in ext-HDD and HDD) can be run in this safe mode. So, my question is, what could actually be happened there? PS: My ext-HDD is Axioo, 250 GB, exFAT... Edited: Currently I used MacOSX, and the file in the harddisk still can't be run. I haven't tried safe mode for Mac (is there one?), but will try later (if there is)

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  • Capture node.js crash reason

    - by dfilkovi
    I have a script written in node.js, it uses 'net' library and communicates with distant service over tcp. This script is started using 'node script.js log.txt' command and everything in that script that is logged using console.log() function gets written to log.txt but sometimes script dies and I cannot find a reason and nothing gets logged in log.txt around the time script crashed. How can I capture crash reason?

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  • Recovering data from an external hard drive

    - by CCallaghan
    I have a WD Elements 2GB hard drive (formatted NTFS). I accidentally kicked out the USB cable while writing data to the disk, and now I can't access most of the data. Although this was ostensibly my backup drive, there is a great deal of important material on there which was only on there. I realise how idiotic this makes me. (So, formatting is not an option.) Things I've tried/information I've gathered: Windows Explorer will recognise the drive itself. However, it will not access most directories therein (and will sometimes crash when exploring). I can access all of the directories through the command line, but the dir command will often report that it can't read any files in most of the directories. The situation was similar when I hooked it up to an Ubuntu machine: the file explorer crashed, but I could access directories - but not files in those directories - via terminal commands. Several files I tried to copy out either resulted in an I/O error being reported or resulted in the command line crashing. The Disk Management utility on Windows reports a healthy disk formatted as NTFS and not RAW. It also indicates the correct amount of space used up and its capacity (so it seems that the files are not deleted). I've tried to run chkdsk, but that hangs on Step 2 (checking indexes) at 74%. Step 1 reported no bad sectors. I tried Recuva, but that didn't seem to work (stalled at 0% for half an hour). I should also note that the disk doesn't seem to be spinning smoothly; it seems to be chopping back, like it's reading the same sector over and over again. I noticed this after I kicked out the cable. Any help would be greatly appreciated. Update: It would seem the problem has taken a turn for the worse. The external hard drive now shows up on my computer as a local disk and is not mountable by Linux.

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  • Can the Visual Studio (2010) Command Window handle "external tools" with project/solution relative p

    - by ee
    I have been playing with the Command Window in Visual Studio (View-Other Windows-Command Window). It is great for several mouse-free scenarios. (The autocompleting file "Open" command rocks in a non-trivial solution.) That success got me thinking and experimenting: Possibility 1.1: You can use the Alias commands to create custom commands Possibility 1.2: You can use the Shell command to run arbitrary executables and specify parameters (and pipe the result to the output or command windows) Possibility 2: A previously setup external tool definition (with project-relative path variables) could be run from the command window What I am stuck on is: There doesn't appear to be a way to send parameters to an aliased command (and thus the underlying Shell call) There doesn't appear to be a way to use project/solution relative paths ($SolutionDir/$ProjectDir) on a Shell call Using absolute paths in Shell works, but is fragile and high-maintenance (one alias for each needed use case). Typically you want the command to run against a file relative to your project/solution. It seems you can't run the traditional external tools (Tools-External Tools...) in the command window Ultimately I want the external tool functionality in the command window in some way. Can anyone see a way to do this? Or am I barking up the wrong tree? So my questions: Can an "external tool" of some sort (using relative project/solution path parameters) be used in the Command Window? If yes, How? If no, what might be a suitable alternative?

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  • how to set cache for css/js file.

    - by coderex
    Hi all, I have to use the cache for the css files and js file which i used in the site. my site running in a shared hosting server. nothing can be done with server. so what could be the solution for use cache and compression for js and css files.

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  • Moving an external hard drive while running

    - by user1108939
    I mean physically moving the drive around. I've never dealt with external hard drives before. Just plugged this wd mypassport to test the transfer rate. At one point I 'safely ejected' the drive. A minute later I decide to check the underside of the drive, not realizing the disk is still spinning. I lift the drive, rotating my writs about 70 degrees to the left... I hear a sequence of three high pitched sounds. I couldn't determine whether that was an indication beep by an internal security feature or the head scratching the plate (oh god...). Drive stops and usb power is disconnected. I reconnect it - it shows up fine - reads/writes. The drive was not reading/writing when i moved it. Did I damage my drive? Are these things that fragile? I thought them to be at least as durable as a standard 2.5" internal drive. Am I mistaken?

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