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  • django: how to use many-to-many relationships in values()?

    - by john
    i need to group results by a field that requires a few joins from the original model: // response_filter_args is created dynamically responses = Response.objects.filter(**response_filter_args) \ .values('customer__tags__tag') \ # django doesn't like this .annotate(average_score=Avg('rating__score')) Response - customer - tags (many-to-many field pointing to Tag) - tag (the tag as a string) Models are: class Response(models.Model): customer = models.ForeignKey(Customer) ... class Customer(models.Model): tags = models.ManyToManyField(Tag) ... class Tag(models.Model): tag = models.CharField(max_length=255) ... i'm trying to calculate average ratings. to make it work i need to tell django to group by 'tag', but it refuses to. it gives an error: Invalid field name: 'customer__tags__tag' anyone know how i can get it to group by tag? i've tried all the combinations of underscores in customer_tags_tag that i can think of, but nothing works.

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  • Calling a function when using <button> tag with jQuery Mobile

    - by u2sonderzug
    I already asked a similar question for buttons in tags, but I find that solution doesn't work using tags. So, if I am using a script that references jQuery Mobile I have the following line: <button id="buttonAnswer1" data-inline="true">Click me</button> How would I add a listener for when this button is clicked and lets say call the hello() function? i.e. <button id="buttonAnswer1" data-inline="true">Click me</button> <script> function hello(){ console.log("hello world"); } </script>

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  • "Must Have" Text/Terminal applications?

    - by timepilot
    I spend most of my time in Linux using tiled window managers such as Awesome or DWM. As a result, prefer to use text/terminal applications. Some of my favorites are: Vim, mc, Htop, MOC, GNU Screen, WeeChat, rTorrent, ELinks and Lynx. What are your must-install text/terminal applications?

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  • Great GUI for Apache2?

    - by ajsie
    I wonder if there are great GUI management tools for Apache so you dont have to manually edit files in VIM. It would be great if you could manage Apache over internet. Any suggestions of such tools?

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  • LUKS with LVM, mount is not persistent after reboot

    - by linxsaga
    I have created a Logical vol and used luks to encrypt it. But while rebooting the server. I get a error message (below), therefore I would have to enter the root pass and disable the /etc/fstab entry. So mount of the LUKS partition is not persistent during reboot using LUKS. I have this setup on RHEL6 and wondering what i could be missing. I want to the LV to get be mount on reboot. Later I would want to replace it with UUID instead of the device name. Error message on reboot: "Give root password for maintenance (or type Control-D to continue):" Here are the steps from the beginning: [root@rhel6 ~]# pvcreate /dev/sdb Physical volume "/dev/sdb" successfully created [root@rhel6 ~]# vgcreate vg01 /dev/sdb Volume group "vg01" successfully created [root@rhel6 ~]# lvcreate --size 500M -n lvol1 vg01 Logical volume "lvol1" created [root@rhel6 ~]# lvdisplay --- Logical volume --- LV Name /dev/vg01/lvol1 VG Name vg01 LV UUID nX9DDe-ctqG-XCgO-2wcx-ddy4-i91Y-rZ5u91 LV Write Access read/write LV Status available # open 0 LV Size 500.00 MiB Current LE 125 Segments 1 Allocation inherit Read ahead sectors auto - currently set to 256 Block device 253:0 [root@rhel6 ~]# cryptsetup luksFormat /dev/vg01/lvol1 WARNING! ======== This will overwrite data on /dev/vg01/lvol1 irrevocably. Are you sure? (Type uppercase yes): YES Enter LUKS passphrase: Verify passphrase: [root@rhel6 ~]# mkdir /house [root@rhel6 ~]# cryptsetup luksOpen /dev/vg01/lvol1 house Enter passphrase for /dev/vg01/lvol1: [root@rhel6 ~]# mkfs.ext4 /dev/mapper/house mke2fs 1.41.12 (17-May-2010) Filesystem label= OS type: Linux Block size=1024 (log=0) Fragment size=1024 (log=0) Stride=0 blocks, Stripe width=0 blocks 127512 inodes, 509952 blocks 25497 blocks (5.00%) reserved for the super user First data block=1 Maximum filesystem blocks=67633152 63 block groups 8192 blocks per group, 8192 fragments per group 2024 inodes per group Superblock backups stored on blocks: 8193, 24577, 40961, 57345, 73729, 204801, 221185, 401409 Writing inode tables: done Creating journal (8192 blocks): done Writing superblocks and filesystem accounting information: done This filesystem will be automatically checked every 21 mounts or 180 days, whichever comes first. Use tune2fs -c or -i to override. [root@rhel6 ~]# mount -t ext4 /dev/mapper/house /house PS: HERE I have successfully mounted: [root@rhel6 ~]# ls /house/ lost+found [root@rhel6 ~]# vim /etc/fstab -> as follow /dev/mapper/house /house ext4 defaults 1 2 [root@rhel6 ~]# vim /etc/crypttab -> entry as follows house /dev/vg01/lvol1 password [root@rhel6 ~]# mount -o remount /house [root@rhel6 ~]# ls /house/ lost+found [root@rhel6 ~]# umount /house/ [root@rhel6 ~]# mount -a -> SUCCESSFUL AGAIN [root@rhel6 ~]# ls /house/ lost+found Please let me know if I am missing anything here. Thanks in advance.

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  • Unable to create a permanent alias in Mac OS

    - by Alex
    In Linux I can well to add alias to bashrc and it will become a permanent alias. In Mac OS I tried to do the same thing: vim ~/.bashrc export PATH="$PATH:$HOME/.rvm/bin" # Add RVM to PATH f or scripting alias prj="cd ~/Documents/projects" ### Added by the Heroku Toolbelt export PATH="/usr/local/heroku/bin:$PATH" That being said, I got this: $ alias alias rvm-restart='rvm_reload_flag=1 source '\''/Users/alex/.rvm/scripts/rvm'\''' So where is my prj alias? I rebooted the laptop but nothing has changed.

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  • Varnish + Plesk : vhost broken

    - by Raphaël
    I have an e-commerce site with 300,000 products and 20,000 categories. It is slow and currently in production. I decided to install Varnish to speed up. The trouble is that during installation, I got a Guru Meditation. Since the site is in production, I am not allowed to leave this error more than a second, thinking to have made an enormous stupidity. I followed the following tutorial: http://www.euperia.com/linux/setting-up-varnish-with-apache-tutorial I'm sure I followed all without error. I say that there may be a specific configuration with plesk. Has anyone already installed Varnish on a ubuntu 11.04 server with plesk 10? Does anyone have a better resource? I know it is "very vague" as an error, but maybe some of you have had this problem. edit 24/11/2011 I continued to work on Varnish + Plesk ... but it still does not work. 1) I changed the port for apache in plesk General # mysql -uadmin -p`cat /etc/psa/.psa.shadow` -D psa -e'replace into misc (param, val) values ("http_port", 8008)' 1.1) I rebuild the server conf # /usr/local/psa/admin/bin/httpdmng --reconfigure-all 2) I changed the apache conf files (if those were not taking full plesk top) vim /etc/apache2/ports.conf NameVirtualHost *:8008 Listen 8008 2.1) I do the same with /etc/apache2/sites-enables/000-default 3) I changed the port of my vhost (a single server) vim /var/www/vhosts/MYDOMAIN.COM/conf/XXXXXXXXX.http.include Replace the port 80 by this I want. Rebuild the vhost conf /usr/local/psa/admin/sbin/websrvmng --reconfigure-vhost --vhost-name=<domain_name> with without www (See my issue in serverfault: Edit vhost port in plesk 10.3 ) 4) I installed varnish by following this tutorial : http://www.euperia.com/linux/setting-up-varnish-with-apache-tutorial 5) I restart apache 2 + varnish service apache2 restart service varnish restart When I go to my site, I come across a page of apache It works! This is the default web page for this server. The web server software is running but no content has been added, yet. Can somebody help me ? This means that my vhost does not point to the right place. Why? What to do? How?

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  • How can I open a file whose name starts with "-"?

    - by PJ
    I am running Ubuntu, and would like to open a file whose file name starts with "-"(minus). When I try to open the file with pico or vim, the command thinks that the "-" sign is an option for the command. I tried enclosing the file name with quotes ('), but I still get the same error. I tried with bash and zsh, but still the same error.

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  • Sublime Text 2 'text bubbling'?

    - by Alex Mcp
    In vim and Notepad++ I have an awesome feature either mapped or built in that I've seen called text bubbling. I know about the Sublime documentation for mapping my own, but wanted to make sure I wasn't duplicating functionality: Basically when I have either block of text selected, or just a cursor on a line, I push (ctrl + up/down) or some other mapping, and the text is moved up or down, in a block, and the rest of the text 'flows' around it. Is this a native feature in Sublime Text or should I script it in?

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  • I've set an editor as default, how do I call it to open files in a shell?

    - by iight
    EDIT I thought of a better way to phrase the question. How can I find the alias that Ubuntu is using for a different text editor? Rather than using nano by typing nano file.txt, i'd like to be able to type sublime file.txt to open sublime editor. I don't know where to look to find these aliases. sudo update-alternatives --config editor does not show it as a choice, I only see the 'default' editors, like Nano and vim.tiny.

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  • Best terminal unix editor to suggest to someone?

    - by Rory McCann
    What's the best terminal editor to suggest to a unix newbie? i.e. not vim or emacs. There are a few editors, joe, nano, etc. Some have easy to remember commands / keyboard shortcuts, others don't. I'm looking for an editor that one could talk someone through over the phone with, for remote sysadminning.

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  • I'm looking for a linux text editor

    - by just_wes
    Preface: I like Vim... a lot Requirements: Remote editing capabilities S/FTP or SSH Text coloring As you can see my requirements are specific but slim. I have been using TextWrangler on MacOSX and I love it. It's that remote editing feature that really does it for me. This post is community-wiki, and if another topic that has an answer that meats my requirements exists, please kindly redirect me. Thank you all very much!

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  • black backgrounds appear grey on gnome-terminal

    - by Martin DeMello
    Running gnome under Ubuntu Lucid $ env | grep TERM TERM=xterm COLORTERM=gnome-terminal I had to edit both my .muttrc and my vim colorscheme to change the background color from black to none in order to get a proper black background (or, more accurately, to retain the terminal's default black background). Setting it to black resulted in a dark grey background. This only happens with gnome-terminal; konsole, xterm and rxvt are fine.

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  • Text editor on Windows for editing remote files

    - by Doug Harris
    I've got a team of web programmers that need to edit HTML and CSS that is stored on a linux server. They're all using Windows on their desktops. Rather than either teaching them to use vi/vim in a shell window or editing locally and copying using an SFTP client, I think it'd be easier to install a text editor which can transparently do the network negotiation. To reiterate, here are the requirements: Runs on Windows Can open file over sftp/ssh syntax highlighting for css/html

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  • Firefox Addon to follow links by keyboard?

    - by Marten Veldthuis
    I like the "Hit-a-hint like navigation of links (start with f to follow a link)" feature of vimperator, but using that addon breaks some sites for me. And though I use Vim as an editor, I don't really need it in my browser. Does anyone know of a Firefox Addon that does just that hit-a-hint like navigation?

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  • Linux ncurses outliner options

    - by geek
    I'm looking for a replacement for hnb, which served me well but seems to be abandoned. Please do not suggest text-editor based approaches like emacs org mode or vim outliner. I want a stand-alone tool, preferably written in Python, with ncurses interface (so it could run on Linux with no X server).

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  • tmux and screen-256 TERM not supported on remote hosts

    - by Yoav Aner
    I have set up my tmux to use screen-256colors and it works great with vim. However, when I ssh to a remote host from within tmux, screen-256colors isn't recognized, so I'm getting errors like this: E558: Terminal entry not found in terminfo 'screen-256color' not known. Available builtin terminals are: builtin_ansi builtin_xterm builtin_iris-ansi builtin_dumb defaulting to 'ansi' Other than editing each remote .bashrc (similarly to this suggestion), is there any way to set the TERM correctly and automatically on the remote host?

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  • Having Textmate warn me when writing to a file that was modified since Textmate last read it

    - by emm
    Scenario: I open a file, I edit it. After I began editing, the file is modified by another program. Finally, I save the file. In that case, Vim would provide that helpful warning: WARNING: The file has been changed since reading it Do you really want to write to it (y/n)? But Textmate will overwrite the file silently, which can result in unpleasant data loss (in my case, a de facto revert on Git). How can I prevent that?

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  • I need a TSE (The Semware Editor) replacement for Windows / Linux / OS X / Solaris (one to edit them

    - by lexu
    My text and programmers editor of choice, when working on a windows box is TSE (The Semware Editor). It is small, it is fast, it is configurabel, and since I've used it (and it's predecessor QEdit) for over twenty years, my fingers can do the editing on autopilot, while the brain is busy with syntax and design. Do you know of a similar editor preferably one that runs on Windows, Linux and OS X (and Solaris ..) I've tried to use VIM (I know how to use VI even longer thant TSE) but it doesn't feel right.

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  • the kvm's terminal works weirdly

    - by Lai Yu-Hsuan
    I connect to a remote machine from the local machine and use virsh console to enter the virtual machine. I don't know how to exactly depict how it works. Normally it works well, but when I run VIM: Then it can't be recovered unless I cut the connection up: It's very hard to work with a broken terminal. Any advice? My terminal works well on my local machine and the remote machine in which the virtual machine runs.

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  • How do I force deletion of a file on Windows 7?

    - by thehawk90
    Hello all. I opened a file using Vim from MinGW's MSYS on Windows 7, and it crashed, and it's left behind a .filename.swp file which I cannot delete! I'm in the local admin group, and I tried following this, in an administrator command propmpt, and that didn't work. Nor did logging on as the local admin and performing the same actions. Any suggestions?

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  • How can I increase Emacs key repeat rate in OS X Mountain Lion

    - by Rob Jones
    Emacs does not seem to respect the OS's key repeat rate. I'm using emacs in the terminal. I've set the repeat rate to as fast as possible by directly editing the settings in the following file (I restarted after making the change): open ~/Library/Preferences/.GlobalPreferences.plist The rest of the system observes the repeat rate. The terminal works as expected, as does vim. But, when I use emacs I still get the annoyingly slow repeat rate.

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