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  • How to route translated URLs to a module with nitrogen

    - by niahoo
    I used to develop in English, but this time, the webApp i'm building is only for people in my city, which is in France. In nitrogen, when you call "/user/login", nitrogen calls user_login:main(). I would like nitrogen to call user_login:main() when the request is "/utilisateur/connexion". I would like nitrogen to call ads_people:main() when the request is "/annonces/personnes", etc. Is there a way to achieve that properly ? Many thanks !

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  • What is your experience with Nitrogen on Erlang?

    - by Yuval A
    I've been checking out the Nitrogen Project which is supposed to be the most mature web development framework for Erlang. Erlang, as a language, is extremely impressive. However, with regards to Nitrogen, what I am not too keen about is using Erlang's rather uncommon syntax (unless you're native in PROLOG) to build UIs. What is your experience with it as opposed to other mainstream web frameworks such as Django or Rails?

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  • How to connect Nitrogen with Couchdb using Ecouch

    - by maryjanne
    I don't understand how to make a connection with nitrogen and couchdb using ecouch, because I have a error on this connection CAUGHT ERROR: error-undef [{ecouch,db_info,["test_suite_db"]} I put ecouch in my erlang library path and I create a symlink to support/include.mk (even I don't know if it has necessary). Or if anyone know a database how can connect with nitrogen and who to make this connection.

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  • Nitrogen: changing targetID breaks lightbox

    - by dewd
    I'm using Nitrogen & lightbox. I'm looking for some guidance after spending way too long trying to understand why a working example breaks as soon as I change the targetID of a lightbox. The fragment below works if I use "name_dialog" or "share_dialog", but not if I use "compose_dialog". I've looked through the source and style sheets, but have not found where those two are defined any differently than what I'm trying to do. In my .hrl: ... -record (compose_dialog, { ?ELEMENT_BASE(compose_dialog_element) }). .. In my element module: ... reflect() -> record_info(fields, compose_dialog). render_element(_HtmlID, _Record) -> #lightbox { id=compose_lightbox, style="display: none;", body = [ .. show() -> wf:wire(compose_lightbox, #show {}).

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  • Nitrogen: changing targetID breaks lightbox

    - by dewd
    I'm using Nitrogen & lightbox. I'm looking for some guidance after spending way too long trying to understand why a working example breaks as soon as I change the targetID of a lightbox. The fragment below works if I use "name_dialog" or "share_dialog", but not if I use "compose_dialog". I've looked through the source and style sheets, but have not found where those two are defined any differently than what I'm trying to do. In my .hrl: ... -record (compose_dialog, { ?ELEMENT_BASE(compose_dialog_element) }). .. In my element module: ... reflect() -> record_info(fields, compose_dialog). render_element(_HtmlID, _Record) -> #lightbox { id=compose_lightbox, style="display: none;", body = [ .. show() -> wf:wire(compose_lightbox, #show {}).

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  • How do I remove nitrogen back to Ubuntu's default wallpaper manager?

    - by jonalmeida
    I was using nitrogen when I using openbox, but now I'm trying to stop it from setting the wallpaper so I can use the Ubuntu default (i.e via the System Settings panel). What I've done so far: sudo apt-get remove nitrogen Removed nitrogen configs at ~/.config/nitrogen/ Checked to make sure that draw_background in /desktop/gnome/background was checked So far it still doesn't work. I can't right-click on the desktop, so I'm guessing that I've missed something to get Nautilus back to drawing icons on the screen. Any help is much appreciated. Thanks!

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  • Nitrogen [Apply] seems to be sent to background. Dual monitors, two wallpapers.

    - by schomper
    I'm trying to get two separate wallpapers for my two monitor set up. I've installed nitrogen which I heard is able to do this. However when I press apply in the nitrogen GUI nothing happens on my screens and the old wallpaper is left up. When I log out I can briefly see the wallpaper set up I designed with nitrogen but then it goes back to the old wallpaper. I feel like something is overriding the nitrogen settings. Any help with how to change this will be greatly appreciated. Thank you.

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  • Erlang web frameworks survey

    - by Zachary K
    (Inspired by similar question on Haskel) There are several web frameworks for Erlang like Nitrogen, Chicago Boss, and Zotonic, and a few more. In what aspects do they differ from each other? For example: features (e.g. server only, or also client scripting, easy support for different kinds of database) maturity (e.g. stability, documentation quality) scalability (e.g. performance, handy abstraction) main targets Also, what are examples of real-world sites / web apps using these frameworks?

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  • Erlang web frameworks survey

    - by Zachary K
    (Inspired by similar question on Haskel) There are several web frameworks for Erlang like Nitrogen, Chicago Boss, and Zotonic, and a few more. In what aspects do they differ from each other? For example: features (e.g. server only, or also client scripting, easy support for different kinds of database) maturity (e.g. stability, documentation quality) scalability (e.g. performance, handy abstraction) main targets Also, what are examples of real-world sites / web apps using these frameworks? EDIT: Starting a bounty in hopes that it will get some conversation going

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  • Matching between product and customer personal information

    - by Yanshof
    I writing some application that find ( according to some question ) information about some person ( lets say that the information are weight, hight and age of the person ). In the other hand i have product list ( can be very big one ) and according to the product information i need to find the best matching between the person information and the product ( the product information that i have are water part, nitrogen part and ext. ) I can't use flow chart algorithm or Breadth-first search because the number of the product is dynamically ( read the product list from DB ... )

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  • The Inebriator: A DIY Arduino-powered Cocktail Machine [Video]

    - by Jason Fitzpatrick
    We’ve seen our fair share of geeky alcohol-related projects over the years but this, this, is something to see. The Inebriator is the slickest automated drink machine we’ve laid eyes on. Before we even start talking specs, check out the video above–don’t forget to first assure your liver that you don’t actually have access to such a magnificent device and it can remain calm. As dazzled as we were? The whole thing is powered by an Arduino Mega 2560, sports a cooler with nitrogen pressurization of drink mix bottles, and relies on a rather ingenious and elegantly simple 12v valve system. It even has an RFID security system to prevent party goers with a few drinks in them from messing up the custom drink menu. Hit up the link below for more information, including photos of the guts and technical specs. The Inebriator [via Hack A Day] Java is Insecure and Awful, It’s Time to Disable It, and Here’s How What Are the Windows A: and B: Drives Used For? HTG Explains: What is DNS?

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  • Xmonad Xsession

    - by AntLord
    My user level: noob-ish, so please bear with me I'm running 12.04 LTS. I have installed and, to some extent, configured xmonad 0.10 The "automagically" created xsession for it works fine as it is, but when I login it won't run a startup script I've created and "call from" /usr/share/xsessions/xmonad.desktop, if that's right. I've read pretty much all I could find about .xinitrc and .xsession, I tried that and it somehow messed up the other "sessions", if I'm explaining myself correctly. Had to $unity --reset to have the "main session" working again. Anyway, my question is, how do I autostart xmobar and set a desktop background after login into xmonad's default Xsession? I tried this script, start-xmonad: #!/bin/bash # #I only used one of the following each time I tried, none worked #Also, do I really need the '&'? I know what they're for, but... nitrogen --restore & feh --bg-scale ~/Pictures/picture.png & #Then I want xmobar to start, again do I need the '&'? I know it's for it to run #in the background, but I tried removing the '&' and xmonad still launched xmobar & #Finally, the only thing that seems to work in this script exec xmonad Yes, I made sure I did chomd +x ~/start-xmonad The xmonad.desktop is [Desktop Entry] Name=XMonad Encoding=UTF-8 Comment=Lightweight tiling window manager Exec=/home/myusername/start-xmonad Icon=custom_xmonad_badge.png Type=XSession So, this didn't work, now I'm here. Please help :s thanks

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  • What web-development platform should I use considering Time-To-Market?

    - by Jonas
    I have been looking at a few differend platforms for my coming web-development project. I would like to hear what web-development platform is recommended when considering Time-To-Maket. Suppose that I already know the programming language well, but not the web-framework. The OS will be Linux. My requirements and priorities: Time-To-Market RESTful Maintainable code Scales-up (not dog-slow) The one I have looked at but never used are: Java and Play! Framework or GWT Python and Django PHP and Zend Framework Ruby and Ruby on Rails Erlang and Nitrogen and Webmachine Scala and Lift C++ and Wt C# and ASP.NET Mono It's a bonus if the framework has support for making sites for mobile phones.

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  • What was missing from the Content Strategy Forum?

    - by Roger Hart
    In April, Paris hosted the first ever Content Strategy Forum. The event's website proudly proclaims: 170 attendees, 18 nationalities, 17 speakers, 1 volcano... Content Strategy Forum 2010 rocked the world! The volcano was in Iceland, and the closest we came to rocking the world was a cursory mention in the Huffington Post, but I'll grant the event was awesome. One thing missing from that list, however, is "94 companies" (Plus a couple of universities and freelancers, and what have you). A glance through the attendees directory reveals a fairly wide organisational turnout - 24 students from two Parisian universities, countless design and marketing agencies, a series of tech firms, small and large. Two delegates from IBM, two from ARM, an appearance from RIM, Skype, and Facebook; twelve from the various bits of eBay. Oh, and, err, nobody from Google, Microsoft, Yahoo, Amazon, Play, Twitter, LinkedIn, Craigslist, the BBC, no banks I noticed, and I didn't spot a newspaper. You get the idea. Facebook notwithstanding, you have to scroll through a few pages to Alexa rankings to find company names from the attendee list. I find this interesting, and I'm not wholly sure what to make of it. Of the large, web-centric, content-rich organizations conspicuously absent, at least one of two things is true: They didn't know about the event They didn't care about the event Maybe these guys all have content strategy completely sorted, and it's an utterly naturalised part of their business process. Maybe nobody at say, Apple or Play.com ever publishes a single piece of content that isn't neatly tailored to their (clearly defined, of course) user and business goals. Wouldn't that be lovely? The thing is, in that rosy and beatific world, there's still a case for those folks to join the community. There are bound to be other perspectives, and things to learn. You see, the other thing achingly conspicuous by its absence was case studies. In her keynote address, Kristina Halvorson made the point that what content strategy really needs is some big, loud success stories. A point I'd firmly second as a content strategist working within an organisation. Sarah Cancilla's presentation on content strategy at Facebook included some very neat, specific examples, and was richer for it. It didn't hurt that the example was Facebook - you're getting impressively big numbers off base. What about the other big boys? Is there anybody out there with a perspective? Do we all just look very silly to you, fretting away over text and images and users and purposes? Is content validation and maintenance so accustomed a part of your business that calling attention to it is like sniffing the air and saying "Hmm, a lot of nitrogen about today."? And if it is, do you have any wisdom to share?

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  • How does Windows 7 DNS client work?

    - by Mark Allison
    I am using a local DHCP and DNS server on my home network on a linux machine. It is running CentOS 6.3 with dnsmasq 2.48. It's all working fine except for local DNS lookups for Windows machines only. I have a mix of Ubuntu, CentOS and Windows machines on the network, some virtual, some physical. I have a machine called boron and the domain is called localdomain If I ping boron from any linux machine, I get [root@lithium lists]# ping -c3 boron PING boron.localdomain (10.0.0.5) 56(84) bytes of data. 64 bytes from boron.localdomain (10.0.0.5): icmp_seq=1 ttl=64 time=0.740 ms 64 bytes from boron.localdomain (10.0.0.5): icmp_seq=2 ttl=64 time=0.478 ms 64 bytes from boron.localdomain (10.0.0.5): icmp_seq=3 ttl=64 time=0.458 ms --- boron.localdomain ping statistics --- 3 packets transmitted, 3 received, 0% packet loss, time 2000ms rtt min/avg/max/mdev = 0.458/0.558/0.740/0.131 ms If I do it from my Windows 7 machine, I get: Ping request could not find host boron. Please check the name and try again. If I try ping boron.localdomain I get: Pinging boron.localdomain [67.215.65.132] with 32 bytes of data: Reply from 67.215.65.132: bytes=32 time=16ms TTL=57 Reply from 67.215.65.132: bytes=32 time=188ms TTL=57 Reply from 67.215.65.132: bytes=32 time=15ms TTL=57 Reply from 67.215.65.132: bytes=32 time=14ms TTL=57 Ping statistics for 67.215.65.132: Packets: Sent = 4, Received = 4, Lost = 0 (0% loss), Approximate round trip times in milli-seconds: Minimum = 14ms, Maximum = 188ms, Average = 58ms which is clearly wrong. Why is it going out to the internet? Why can't my windows machine resolve the boron hostname to a FQDN? My Windows machines and linux machines get their network config from DHCP. UPDATE If I do ipconfig /all in Windows, it looks as I would expect: Windows IP Configuration Host Name . . . . . . . . . . . . : lanthanum Primary Dns Suffix . . . . . . . : Node Type . . . . . . . . . . . . : Hybrid IP Routing Enabled. . . . . . . . : No WINS Proxy Enabled. . . . . . . . : No DNS Suffix Search List. . . . . . : .localdomain Ethernet adapter Local Area Connection: Connection-specific DNS Suffix . : .localdomain Description . . . . . . . . . . . : Realtek PCIe GBE Family Controller Physical Address. . . . . . . . . : 50-E5-49-38-FC-A2 DHCP Enabled. . . . . . . . . . . : Yes Autoconfiguration Enabled . . . . : Yes IPv4 Address. . . . . . . . . . . : 10.0.0.57(Preferred) Subnet Mask . . . . . . . . . . . : 255.255.255.0 Lease Obtained. . . . . . . . . . : 23 August 2012 13:58:45 Lease Expires . . . . . . . . . . : 24 August 2012 07:58:48 Default Gateway . . . . . . . . . : 10.0.0.6 DHCP Server . . . . . . . . . . . : 10.0.0.6 DNS Servers . . . . . . . . . . . : 10.0.0.6 208.67.222.222 208.67.220.220 NetBIOS over Tcpip. . . . . . . . : Enabled When I do an nslookup I get: Server: carbon.localdomain Address: 10.0.0.6 *** carbon.localdomain can't find boron: Unspecified error However if I do ifconfig -a in Linux I get: [root@nitrogen ~]# ifconfig -a eth0 Link encap:Ethernet HWaddr 00:0C:29:AF:EC:2A inet addr:10.0.0.7 Bcast:10.0.0.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:187687 errors:0 dropped:0 overruns:0 frame:0 TX packets:5857 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:23910700 (22.8 MiB) TX bytes:712964 (696.2 KiB) lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:329894 errors:0 dropped:0 overruns:0 frame:0 TX packets:329894 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:67153143 (64.0 MiB) TX bytes:67153143 (64.0 MiB) and nslookup: [root@nitrogen ~]# nslookup boron Server: 10.0.0.6 Address: 10.0.0.6#53 Name: boron Address: 10.0.0.5 Both machines are on the same network using the same DHCP server. UPDATE 2 I thought the issue was resolved but I am getting intermittent DNS resolving issues but only on my Windows 7 machine. All my linux boxes are fine. This is what happens when I ping and nslookup from Windows to a Windows 2008 Server: C:\Users\mark>nslookup magnesium Server: carbon.localdomain Address: 10.0.0.6 Name: magnesium.localdomain Address: 10.0.0.12 C:\Users\mark>ping magnesium Pinging magnesium.localdomain [67.215.65.132] with 32 bytes of data: Reply from 67.215.65.132: bytes=32 time=267ms TTL=57 Reply from 67.215.65.132: bytes=32 time=162ms TTL=57 Reply from 67.215.65.132: bytes=32 time=510ms TTL=57 Reply from 67.215.65.132: bytes=32 time=146ms TTL=57 Ping statistics for 67.215.65.132: Packets: Sent = 4, Received = 4, Lost = 0 (0% loss), Approximate round trip times in milli-seconds: Minimum = 146ms, Maximum = 510ms, Average = 271ms And from Linux: [root@beryllium ~]# ping -c4 magnesium PING magnesium.localdomain (10.0.0.12) 56(84) bytes of data. 64 bytes from magnesium.localdomain (10.0.0.12): icmp_seq=1 ttl=128 time=0.176 ms 64 bytes from magnesium.localdomain (10.0.0.12): icmp_seq=2 ttl=128 time=0.634 ms 64 bytes from magnesium.localdomain (10.0.0.12): icmp_seq=3 ttl=128 time=0.685 ms 64 bytes from magnesium.localdomain (10.0.0.12): icmp_seq=4 ttl=128 time=0.263 ms --- magnesium.localdomain ping statistics --- 4 packets transmitted, 4 received, 0% packet loss, time 3002ms rtt min/avg/max/mdev = 0.176/0.439/0.685/0.223 ms [root@beryllium ~]# nslookup magnesium Server: 10.0.0.6 Address: 10.0.0.6#53 Name: magnesium.localdomain Address: 10.0.0.12 UPDATE 3 I stopped the Windows DNS client on my Windows 7 machine with net stop dnscache and it is now working fine. It would be nice to get DNS working with the DNS client on, but I might be OK without it, what do you think?

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  • Printing special / extended characters on web page - Firefox or printer issue?

    - by edmicman
    My dad brought this to my attention and I'm looking into it, but thought I'd post here and see if anyone has any ideas... He's running Win7, using Firefox and printing to a wireless connected Brother HL-2170W printer. He's got a web page (http://cornandsoybeandigest.com/inputs/fertilizer/applying-nitrogen-after-planting-0512/index.html) that has extended/special characters in it - the funny "a" in Fernandez. The characters show correctly in Firefox on the page. He printed it, and the extended "a" printed as a diamond with a question mark. He says it shows that way in the print preview, too. I pulled up the same page in Ubuntu, Firefox, and it displayed in my print preview and physically printed everything correctly. I just checked on my wife's Win7 PC in Firefox and the print preview looked correct on her system, too. We have a Brother 2040 here. Soooo, my question is, is this possibly a problem in the browser somehow, or the printer driver? I'm leaning towards the printer driver now, but I can't say I've run into this before. Is it a setting somewhere? I just installed this printer for him the other day, using the CD that came with it; I could try updating the driver from Brother's website I guess. Is there anything else I should look at or check? Thanks!

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  • What hash algorithms are paralellizable? Optimizing the hashing of large files utilizing on mult-co

    - by DanO
    I'm interested in optimizing the hashing of some large files (optimizing wall clock time). The I/O has been optimized well enough already and the I/O device (local SSD) is only tapped at about 25% of capacity, while one of the CPU cores is completely maxed-out. I have more cores available, and in the future will likely have even more cores. So far I've only been able to tap into more cores if I happen to need multiple hashes of the same file, say an MD5 AND a SHA256 at the same time. I can use the same I/O stream to feed two or more hash algorithms, and I get the faster algorithms done for free (as far as wall clock time). As I understand most hash algorithms, each new bit changes the entire result, and it is inherently challenging/impossible to do in parallel. Are any of the mainstream hash algorithms parallelizable? Are there any non-mainstream hashes that are parallelizable (and that have at least a sample implementation available)? As future CPUs will trend toward more cores and a leveling off in clock speed, is there any way to improve the performance of file hashing? (other than liquid nitrogen cooled overclocking?) or is it inherently non-parallelizable?

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  • What hash algorithms are parallelizable? Optimizing the hashing of large files utilizing on multi-co

    - by DanO
    I'm interested in optimizing the hashing of some large files (optimizing wall clock time). The I/O has been optimized well enough already and the I/O device (local SSD) is only tapped at about 25% of capacity, while one of the CPU cores is completely maxed-out. I have more cores available, and in the future will likely have even more cores. So far I've only been able to tap into more cores if I happen to need multiple hashes of the same file, say an MD5 AND a SHA256 at the same time. I can use the same I/O stream to feed two or more hash algorithms, and I get the faster algorithms done for free (as far as wall clock time). As I understand most hash algorithms, each new bit changes the entire result, and it is inherently challenging/impossible to do in parallel. Are any of the mainstream hash algorithms parallelizable? Are there any non-mainstream hashes that are parallelizable (and that have at least a sample implementation available)? As future CPUs will trend toward more cores and a leveling off in clock speed, is there any way to improve the performance of file hashing? (other than liquid nitrogen cooled overclocking?) or is it inherently non-parallelizable?

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