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  • create a model in create action from a class

    - by Pontek
    As a newbie to rails I can't find how to solve my issue ^^ I want to create a VideoPost from a form with a text field containing a video url (like youtube) I'm getting information on the video thanks to the gem https://github.com/thibaudgg/video_info And I want to save thoses information using a model of mine (VideoInformation). But I don't know how the create process should work. Thanks for any help ! I'm trying to create a VideoPost in VideoPostsController like this : def create video_info = VideoInfo.new(params[:video_url]) video_information = VideoInformation.create(video_info) #undefined method `stringify_keys' for #<Youtube:0x00000006a24120> if video_information.save @video_post = current_user.video_posts.build(video_information) end end My VideoPost model : # Table name: video_posts # # id :integer not null, primary key # user_id :integer # video_information_id :integer # created_at :datetime not null # updated_at :datetime not null My VideoInformation model (which got same attributes name than VideoInfo gem) : # Table name: video_informations # # id :integer not null, primary key # title :string(255) # description :text # keywords :text # duration :integer # video_url :string(255) # thumbnail_small :string(255) # thumbnail_large :string(255) # created_at :datetime not null # updated_at :datetime not null

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  • Please help me convert this C# 2.0 snippet to Linq.

    - by Hamish Grubijan
    This is not a homework ;) I need to both A) optimize the following code (between a TODO and a ~TODO) and B) convert it to [P]Linq. Better readability is desired. It might make sense to provide answers to A) and B) separately. Thanks! lock (Status.LockObj) { // TODO: find a better way to merge these dictionaries foreach (KeyValuePair<Guid, Message> sInstance in newSInstanceDictionary) { this.sInstanceDictionary.Add(sInstance.Key, sInstance.Value); } foreach (KeyValuePair<Guid, Message> sOperation in newSOperationDictionary) { this.sOperationDictionary.Add(sOperation.Key, sOperation.Value); } // ~TODO }

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  • ASUS U24a can't boot without live disk

    - by user98965
    I recently picked up a new ASUS U24a while travelling in asia. I've managed to go through hell with the UEFI setup, and finally now have a working GRUB. However, I can't manage to get past the "Loading initial ramdisk". If I boot the live CD-USB (only in BIOS legacy mode), I get a wonderful, working Ubuntu. I finally managed to get UEFI installed on the hard-drive (no option for legacy BIOS boot, or I'd be there in a flash!), and can boot in UEFI mode into GRUB2. But... I can't manage to get past the "loading initial ramdisk". It appears that the disk drivers are failing (there is no disk activity after this point). Ideas? pastebin from the boot-repair is at: http://paste.ubuntu.com/1290011/ best, -tony

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  • Complex MySQL table select/join with pre-condition

    - by Howard
    Hello, I have the schema below CREATE TABLE `vocabulary` ( `vid` int(10) unsigned NOT NULL auto_increment, `name` varchar(255), PRIMARY KEY vid (`vid`) ); CREATE TABLE `term` ( `tid` int(10) unsigned NOT NULL auto_increment, `vid` int(10) unsigned NOT NULL default '0', `name` varchar(255), PRIMARY KEY tid (`tid`) ); CREATE TABLE `article` ( `aid` int(10) unsigned NOT NULL auto_increment, `body` text, PRIMARY KEY aid (`aid`) ); CREATE TABLE `article_index` ( `nid` int(10) unsigned NOT NULL default '0', `tid` int(10) unsigned NOT NULL default '0' ) INSERT INTO `vocabulary` values (1, 'vocabulary 1'); INSERT INTO `vocabulary` values (2, 'vocabulary 2'); INSERT INTO `term` values (1, 1, 'term v1 t1'); INSERT INTO `term` values (2, 1, 'term v1 t2 '); INSERT INTO `term` values (3, 2, 'term v2 t3'); INSERT INTO `term` values (4, 2, 'term v2 t4'); INSERT INTO `term` values (5, 2, 'term v2 t5'); INSERT INTO `article` values (1, ""); INSERT INTO `article` values (2, ""); INSERT INTO `article` values (3, ""); INSERT INTO `article` values (4, ""); INSERT INTO `article` values (5, ""); INSERT INTO `article_index` values (1, 1); INSERT INTO `article_index` values (1, 3); INSERT INTO `article_index` values (2, 2); INSERT INTO `article_index` values (3, 1); INSERT INTO `article_index` values (3, 3); INSERT INTO `article_index` values (4, 3); INSERT INTO `article_index` values (5, 3); INSERT INTO `article_index` values (5, 4); Example. Select term of a defiend vocabulary (with non-zero article index), e.g. vid=2 select a.tid, count(*) as article_count from term t JOIN article_index a ON t.tid = a.tid where t.vid = 2 group by t.tid; +-----+---------------+ | tid | article_count | +-----+---------------+ | 3 | 4 | | 4 | 1 | +-----+------------ Question: Select terms a. of a defiend vocabulary (with non-zero article index, e.g. vid=1 = term {1,2}) b. given that those terms are linked with articles which are linked with terms under vid=2, e.g. = {1}, term with tid=2 is excluded since no linkage to terms under vid=2 SQL: Any idea? Expected result: +-----+---------------+ | tid | article_count | +-----+---------------+ | 1 | 2 | +-----+---------------+

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  • Why I can't open folders copied from Ubuntu on Windows?

    - by user37805
    Is not possible for me to open whatever folder I copy from Ubuntu to my Windows partition or whatever usb memory. Windows says the folder's location is either disconnected or doesn't exist. Can't copy, cut or delete the folder on Windows but with Ubuntu I can. This happens even if I create the folder on the ntfs disc. I have never had this problem before. Files are openable however, but not if they are inside a folder. This started after I haven't made any other changes except for the update to kernel 3.2.0-30-generic, I am using 12.04, never installed Samba, after this problem started I tried to fix it by installing ntfs-3f, ntfsprogs, ntfs-config, but It didn't work.

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  • Ubuntu not picking up wireless networks [Ubuntu 12.10]

    - by user114772
    i am new to Ubuntu & just installed it on my DELL mini laptop, when i open the network tab it does not show the wireless networks around me, neither does it show mine, i have enabled networking but it still does not pick up any wireless. I am pretty sure my wireless network is not hidden, since i can connect to it on my other laptop, anyone have any idead on what i could be? It worked once when i was running Ubuntu on my USB, but when i installed it to the hard drive as a main OS it did not list any wireless networks.

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  • Is there a tool that will show diagrams of my SQL database in real-time?

    - by Rising Star
    I've created some diagrams of SQL tables using the "Reverse Engineer" feature of Microsoft Office Visio. I like being able to visualize my relational databases in this manner. However, what I get is just a static document that I can print, e-mail to colleagues, and click widgets on. Earlier this year, I saw at a demo that the new version of Visual Studio 2010 has a new feature called the "Architect Explorer", which allows developers to view relationships among .net classes on the fly. It has many features for filtering the data that the developer is interested in. It would be really awesome if I could visually browse my tables and stored procedures and see what is related to what by primary key, foreign key, and referenced in stored procedures. I realize that I'm talking about two entirely different technologies and it's not a perfect analogy, but is there some similar tool that would allow me to visualize tables in my SQL database?

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  • Uninstalling Wubi

    - by DvoglaviOrao3
    I installed wubi in a 30GB partition and I wanted to delete that so that I could install Ubuntu via usb with a larger partition. So I went to the control panel to find Ubuntu but it wasn’t there. I decided to go into the c drive and deleted the Ubuntu file. BUT now every time i boot up it asks me to choose windows 7 and Ubuntu (like I still have dual boot) and if I choose Ubuntu it says "windows could not find this file" and then says the path of the file. what should I do to remove this old wubi/ubuntu?

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  • MySQL Full-text Search Workaround for innoDB tables

    - by Rob
    I'm designing an internal web application that uses MySQL as its backend database. The integrity of the data is crucial, so I am using the innoDB engine for its foreign key constraint features. I want to do a full-text search of one type of records, and that is not supported natively with innoDB tables. I'm not willing to move to MyISAM tables due to their lack of foreign key support and due to the fact that their locking is per table, not per row. Would it be bad practice to create a mirrored table of the records I need to search using the MyISAM engine and use that for the full-text search? This way I'm just searching a copy of the data and if anything happens to that data it's not as big of a deal because it can always be re-created. Or is this an awkward way of doing this that should be avoided? Thanks.

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  • significance of index name in creating an index (mySQL)

    - by Will
    I've done something like this in order to use on duplicate key update: CREATE UNIQUE INDEX blah on mytable(my_col_to_make_an_index); and its worked just fine. I'm just not sure what the purpose of the index name is -- in this case 'blah'. The stuff I've read says to use one but I can't fathom why. It doesn't seem to be used in queries, although I can see it if I export the schema. So ... what purpose does the index name serve? If it helps the line in the CREATE TABLE ends up looking like: UNIQUE KEY `clothID` (`clothID`)

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  • Validation controls error message from Resource file and parameterized

    - by BigBoss
    Hi, I would like to get validation messages for validation controls from resource files. I know I can do that easily by following code snippet. <%$ Resources:[filename prefix,]resource-key %> or <asp:Label ID="Label1" runat="server" meta:resourcekey="resource-key-prefix" /> But I would also like to parameterized it. e.g. Above Resource Expression will give me message like "Fill Information.". What I have in resource file is "Fill {0} Information." which should show end user message like "Fill Address Information.".

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  • Inverted Cursor with ARM OpenJDK 7 in Chromium, and clicking issues?

    - by Espionage724
    So I have a strange issue. When using Chromium on the Nexus 7 port of Ubuntu, Java apps in the browser have the cursor flipped, literally (not just inverted movement, but the cursor itself flipped too). Also, clicking in java apps, both in the web browser and standalone, clicks don't register when using a USB mouse. I have to tap the screen itself to click. And another issue with the mouse; it seems Minecraft is unable to run, and freezes with an error similar to being unable to "GetInput", possibly related to the clicking issue above.

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  • Clean Ubuntu 14.04 install taking longer to boot after kernel upgrade

    - by mvburgos
    Hello this is my first post. I own an Asus Chromebox (2gb ram, 16 gb sdd, 3.0 usb ports) and fresh installed Ubuntu 14.04 x64. I decided to upgrade kernel because I was experiencing some freezing issues with XBMC, So first i installed stable kernel 3.14.04 from mainline and boot time was fine (it booted very fast I would say about 5 seconds) then after a while I installed kernels 3.15 and 3.14.06 BUT this time I also removed OLD STOCK KERNELS (dunno if that has something to do) after that the problem began, boot time is taking way longer, I would say about 30 seconds. Finally today I installed kernel 3.14.07, set grub to boot with that by default but same thing :( I post boot.log and dmesg, hope it is correct for this matter, if you need any other log just let me know. boot.log dmesg

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  • retrieving data from memcache

    - by Adnan
    Hello, I am starting to learn the benefits of memcache, and would like to implement it on my project. I have understood most of it, such as how data can be retrieved by a key and so on. Now I get it that I can put a post with all of its details in memcache and call the key POST:123, that is OK, and I can do it for each post. But how to deal with the case when I query the table posts to get the list of all posts with their titles. Can this be done with memcache, or should this always be queried from the table?

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  • Android/ORMLite Insert Row with ID

    - by Joe M
    I'm currently using ORMLite to work with a SQLite database on Android. As part of this I am downloading a bunch of data from a backend server and I'd like to have this data added to the SQLite database in the exact same format it is on the backend server (ie the IDs are the same, etc). So, my question to you is if I populate my database entry object (we'll call it Equipment), including Equipment's generatedId/primary key field via setId(), and I then run a DAO.create() with that Equipment entry will that ID be saved correctly? I tried it this way and it seems to me that this was not the case. If that is the case I will try again and look for other problems, but with the first few passes over the code I was not able to find one. So essentially, if I call DAO.create() on a database object with an ID set will that ID be sent to the database and if it is not, how can I insert a row with a primary key value already filled out? Thanks!

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  • Which Single Board Computer vendors do you recommend? [closed]

    - by jamiec
    We are a small company looking to run our software on devices with a Single Board Computer. We are deciding which vendor to go with. It would be nice to hear your recommendations. Doing a quick search for "Single Board Computer vendors" yields several options. WinSystems, Tri-M, etc. Based on your experience which of these companies do you recommend? We need to run Windows XPe. The board needs to be x86, with USB and ethernet interfaces. I agree that this is really close to off-topic. And almost like asking which car company do you like?

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  • Export Certificate Windows Server 2008

    - by user1432032
    I need to export the private key of a self-created SSL-certificate on a Windows Server 2008. However at Microsoft Management Console (the certificate is located, if it matter, in Personal-Certificate folder) the option "Yes, export the private key" is greyed out. Reading the provided help section it tells that the certificate needed to "be made exportable" during creation. However it also says that it is ONLY a limitation if it was created using Windows Server 2003. It doesn´t say anything how to fix it though on a Windows 2008 Server. The certificate is self-signed. I want to export to PKCS12 format. I´m accessing MMC as administrator so there should not be any permission issues. How can I make this certificate "exportable"?

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  • A better understanding of the relations beetween database tables

    - by Nistor Alexandru
    Hi I am trying to get a better understanding of relational databases and there is something that I keep bumping into and don't understand.Let's take this two tables: In this case Login.ID is the primary key with auto_increment set and Profile.ID_LOGIN is the Foreign KEY.When a user is created and it's username and password is stored in the login database does the ID coresponding to the curesnt username and password get automaticly added into ID_LOGIN or do I have to create an SQL statement to do this? If I have to create a SQL statement how should I aproach adding the ID_LOGIN to make sure I am adding it corectly?

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  • Password protect web pages on Windows CE 6

    - by Chris
    I am using the default web server for WinCE 6 and wish to password protect certain folders. The default VROOT /remoteadmin/ is password protected, and this works but my configuration doesn't work. I have tried mimicking these settings on my own folders but to little success. Here is how one looks: In the HKLM\Comm\HTTPD\VROOTS key I have created a subkey called /web/configuration (this folder actually exists on the box). The following values are in this key A = 1 DefaultPage = config.html Path = /hard disk/webroot/web/configuration/ UserList = ADMIN This is nigh on identical to the settings in /RemoteAdmin/ but /RemoteAdmin/ requests a password and /web/configuration doesn't (even after reboot).

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  • How secure is encryption?

    - by Stomped
    Let me preface this by saying I know nothing about encryption. I understand the basic concept of public key / private key encryption but I don't how easily it can be broken, if at all. If one were to believe the movies, encrypted data can be broken by a teenager with a decent computer in a few hours. I have a client who wants credit card information sent via email - encrypted of course, but I'm still not feeling terribly good about the idea. I feel it would be safer to store the info on the VPS, but even then its an unmanaged server and there's nobody watching it who knows much about security. So can anyone tell me if there's a safe way to store and/or send this data out? Thanks

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  • Sun Broadband Wireless and Ubuntu

    - by Verge Riviero
    Good day! I recently installed 12.04. I am having a hard time connecting to the Internet using my Sun Broadband Wireless. I installed the 64-bit version. I am from the Philippines. When I plug in my USB stick, it does not show up on the Network Manager/ no new connection can be detected. I try to edit it using Edit Connections but still to no avail. I have tried doing these steps from kenji08, kartonista, and from review-ninja (for this one, I can't seem to get pass the first step.) I hope those information can help.

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  • Unknown file system: grub Rescue

    - by samba
    I deleted the partition which contains the Ubuntu 12.0.4 OS. I have windows one other drive. When I reboot the system, It shows the following. unknown filesystem. grub rescue I read the previous questions about this topic and I tried to install Linux again using usb flash drive but was unable to boot from flash drive. I do not have a DVD ROM... what Shall I do now to boot from windows...? thank you in advance....

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  • How to debug wifi connection?

    - by mmb
    I am using Ubuntu's Network Manager to connect to a local wifi router. My problem is, that it often disconnects without any visible reason (router is on, internet connection seems to be working, wifi diodes are blinking). I mostly have to disable wifi from Network Manager, enable it again to get wifi connecting again. Plus I am often experiencing Network Manager trying to connect to my wifi, trying several times but then giving up. I even tried an external usb-wifi card, but with the very same results. My question is: How can I debug this? Which logs should I read to see what is really happening when all of these errors occur - so I can post them here and see how to proceed?

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  • How can I use Ubuntu to rescue files from an NTFS drive?

    - by dago
    I reinstalled windows on the laptop of my daughter. Before doing this we made a copy of her music, pictures and so on. Unfortunately, the folder we created for the backup was empty (I checked after I reinstalled windows). Today a miracle happened, as suddenly the data were back but when Itried to copy them to another place thez disappeared again. Checking the drive with disk utility I got the message "filesystem is not clean". Is there a way to recover the data? Preferred solution would be a tool with a gui. The drive I need to repair is formatted in NTFS and is connected via usb to laptop.

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  • ethernet problems in ubuntu 12.04

    - by h4x0rj3ff
    so today i popped out my hdd with ubuntu on it and put in a fresh hdd and installed win8 (wanted to try it). i got everything installed, upp and running and decided to go back to ubuntu (for obvious reasons lol) but when i boot back into ubuntu my internet connection will not connect. i booted into a live cd of ubuntu and it still would not work. i thought i blew up my onboard port so i booted back into win8 and the internet worked without flaw. so i booted back into my ubuntu install and i have a usb to ethernet adapter that im using but i still cant get my onboard to connect. any ideas?

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