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  • error while using cancan in ruby: "uninitialized constant CanCan::Rule::Mongoid"

    - by Ran
    here is my controller: class AdminController < ApplicationController before_filter :require_user authorize_resource :class => false def index end def users_list end end here is my Ability class: class Ability include CanCan::Ability def initialize(user) if user.admin? can :manage, :all else can :read, :all end end end when trying to access "/admin/users_list" (with an admin user or without) i get the following error: uninitialized constant CanCan::Rule::Mongoid any thoughts?

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  • Typing Accent Marker in Hebrew on Mac

    - by zarose
    I'm learning ancient Hebrew and wanted to make a document full of the vocabulary words I need to memorize so that I can study during my other classes. I noticed that OSX's built-in Hebrew fonts do not include the accent marker. An example: the word for "darkness" is ??????. To represent that the accent is on the first syllable, there needs to be a < over the first letter. The accent could be in the middle of the word, so I can't just throw < at the front every time. Does anyone have a free font that includes this? Any other elegant solutions are welcome. Edit: I found that it is unicode character 05AB. Is there a way to add that to the built-in Hebrew fonts?

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  • Graciously shutdown external HDD enclosure?

    - by Jakobud
    I recently purchased a large HDD along with the following HDD enclosure: http://www.newegg.com/Product/Product.aspx?Item=N82E16817173043 It has a simple on-off switch on the back. When I want to turn this thing off, do I simply just flip the switch? I assume the switch simply kills the power to the HDD, but isn't that potentially a bad thing in the case that the HDD is still reading/writing? I used to have a Seagate external HDD and it had a button on the front that I had to hold down for a second or two before it would turn off, but it at least appeared to sort of go through a shutdown procedure where it probably would stop the HDD activity before cutting power. So with this external HDD, I'm a little bit leery about that power switch and understanding exactly what it does. Is this how all HDD enclosures are? EDIT: I'm running the drive in Ubuntu Server. So there is no 'ejecting' the drive lol

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  • ROR heroku PostGres issue

    - by oelbrenner
    getting error: ActiveRecord::StatementInvalid (PGError: ERROR: argument of HAVING must be type boolean, not type timestamp without time zone controller code snippet: def inactive @number_days = params[:days].to_i || 90 @clients = Client.find(:all, :include = :appointments, :conditions = ["clients.user_id = ? AND appointments.start_time <= ?", current_user.id, @number_days.days.ago], :group = 'client_id', :having = 'MAX(appointments.start_time)' ) end

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  • Limit maximum incoming connections to a port using iptables

    - by Harley
    I have a server that has apache listening on a number of ports. Some ports are used for configuring the server, and another is used to download large files. My problem is that when I have a large number of clients downloading files, the web interface is uncontactable. I would like to limit the number of clients connecting on the "large file" port so that apache always has available connections to configure the server. A REJECT is fine, the client trying to download the file will back off and retry later. Each client only has one connection open to the server at a time, so limiting by IP won't work. I know I could put something in front of apache to manage this, but I'd really like to do it in iptables, without adding more software.

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  • Linksys router with multiple external IP's

    - by Adrian Mester
    In an office I've got a network connection with 5 external IPs and a Linksys router (I'm not 100% percent sure of the model). I need 4 of those 5 IPs to be routed to a server, and the fifth to be shared between the other computers at the office. This can probably be done using a switch in front of the router. Connect the server and the router to the switch, and let the router handle the rest of the network. Is there a way to configure the router to route the 4 IPs to the server, and create an internal network the the other computers at the same time?

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  • Chassis fans and power LEDs still work in Hibernate

    - by Jaded
    I have ASRock Z68 Extreme3 Gen3 motherboard recently updated to 2.20 BIOS version. OS is Windows 7 x64. The problem is after that update full hibernation (by that i mean full system power off) stopped working although everything was fine before. Now when I press hibernate, sleep in initiated as usual, monitor goes to sleep, HDD and CPU fan stop spinning, but chassis fans (i have Gigabyte Aurora 3D 570 case with two rear and one front fans) still remain working. Also power leds are lit as if computer is turned on. Tried changing different UEFI settings related to sleep mode, and none of them change above described behaviour. I have "Deep Sleep" (Advanced-South Bridge Configuration) set to "Enabled in S4-S5", "Suspend to RAM" (Advanced-ACPI Configuration) set to "Auto", all fans settings in "H/W Monitor" set to "Auto".

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  • How do I pass a string or data object between two view controllers?

    - by Jonathan
    In my last question i asked how to best send a string from one view controller to another, both which were on a navigation stack: http://stackoverflow.com/questions/2898860/pass-string-from-tableviewcontroller-to-viewcontroller-in-navigation-stack However I just realised I can either pass the path to the file in the app's document's folder as the first (the table view) has already accessed the data in the file should I pass viewcontroller the data to the pushed VC?

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  • Asp.Net MVC and Entity Framework Architecture

    - by Pino
    Hi, I'm working on a fairly large project at the moment and am currently in the planning stages. I've done a lot of reading into the various patterns suggested for development, somthing that has split the team at the moment is when using Entity Framework should the classes be passed through the applciation layers so that a view accepts an Entity Framework class or should these classes be mapped to BLL Classes and if so at which point (Controller or Library) should this be done? I'm interested in hearing some positives and negitives for each solutions.

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  • prefilling data in html.textbox() for editPage aspnet mvc ?

    - by FosterZ
    hi, i have problem in prefilling data into html.textbox for editxxx purpose, i have done following.. Action Controller for Edit public ActionResult EmployeeEdit(Guid userId) { _ASI_Employee employeeEdit = EmployeeRepository.GetEmployeeByUserId(userId); return View(employeeEdit); } View = Html.TextBox("EmployeeId",Model.EmployeeId) % = Html.ValidationMessage("EmployeeId", "*") im getting the value of "Model.EmployeeId" but it is not getting prefilled/displayed in the textbox.

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  • Rails - How do you test ActionMailer sent a specific email in tests

    - by adam
    Currently in my tests I do something like this to test if an email is queued to be sent assert_difference('ActionMailer::Base.deliveries.size', 1) do get :create_from_spreedly, {:user_id => @logged_in_user.id} end but if i a controller action can send two different emails i.e. one to the user if sign up goes fine or a notification to admin if something went wrong - how can i test which one actually got sent. The code above would pass regardless.

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  • replacement drive cage for power edge R710

    - by bumble_bee_tuna
    Hi I'm performance tuning a DB server its a Dell R710 there is a very significant I/O bottleneck. Unfortunately the server was purchased with the 6 x 3.5 inch sata configuration which doesn't give me the leeway I need to address the issue. Before going to DAS does anyone know if it is possible to purchase a replacement front drive enclosure ? I know the server is configurable with something like 12 or 16 2.5 inch drives and it appears to be modular ? I tired contacting dell but the offshore parts department reps are not very bright lol. Thanks.

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  • How do I display a dynamically resized image in Kohana without saving it?

    - by Ygam
    I have an image path string stored in a database It goes like: img/uploads/imagename.jpg I have a controller: $this->image = new Image($wines->image) //this is assuming that I have a wines table with the image property $this->image->resize(60, 250, Image::AUTO) echo $this->image->render(); //the problem is nothing is rendered //Is there a better way of doing this? the image path that I am passing at the Image object //instantiation is the result of a query

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  • Static when metal USB plug touches my case, and other electrical problems.

    - by Archagon
    I have an aluminum PC case. Whenever the metal USB plug from my external drive contacts the front, I get crackling from my speakers, which are connected to an external USB soundcard. (This crackling happens even if they're not connected to the actual output jack.) A few possibly related problems: my audio occasionally starts popping once every few minutes, and my USB devices sometimes play the "connected" sound in Windows even though they're already connected, as if they're briefly disconnecting. My guess is that this has to do with the grounding, but I'm not sure exactly what to do. My case has a round grounding wire, but I don't know where to attach it, and fiddling with it didn't seem to have any effect. Suggestions?

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  • How can I get a custom UITableView to automatically scroll to a selected text field?

    - by nornagon
    I have a UITableView, which I am controlling from a custom UIViewController. When the user clicks the 'add' button, I add a row to the UITableView with a text field in it, and make it the first responder. The problem is, when the bottom of the table is out of view (or hidden by the keyboard), the UITableView doesn't scroll to bring the text field into view. UITableViewController does this automatically, but my View Controller can't be a subclass of UITableViewController.

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  • USB windows xp final USB access issues

    - by Lex Dean
    I basically understand you C++ people, Please do not get distracted because I'm writing in Delphi. I have a stable USB Listing method that accesses all my USB devices I get the devicepath, and this structure: TSPDevInfoData = packed record Size: DWORD; ClassGuid: TGUID; DevInst: DWORD; // DEVINST handle Reserved: DWord; end; I get my ProductID and VenderID successfully from my DevicePath Lists all USB devices connected to the computer at the time That enables me to access the registry data to each device in a stable way. What I'm lacking is a little direction Is friendly name able to be written inside the connected USB Micro chips by the firmware programmer? (I'm thinking of this to identify the device even further, or is this to help identify Bulk data transfer devices like memory sticks and camera's) Can I use SPDRP_REMOVAL_POLICY_OVERRIDE to some how reset these polices What else can I do with the registry details. Identifying when some one unplugs a device The program is using (in windows XP standard) I used a documented windows event that did not respond. Can I read a registry value to identify if its still connected? using CreateFileA (DevicePath) to send and receive data I have read when some one unplugs in the middle of a data transfer its difficult clearing resources. what can IoCreateDevice do for me and how does one use it for that task This two way point of connection status and system lock up situations is very concerning. Has some one read anything about this subject recently? My objectives are to 1. list connected USB devices identify a in development Micro Controller from everything else send and receive data in a stable and fast way to the limits of the controller No lock up's transferring data Note I'm not using any service packs I understand everything USB is in ANSI when windows xp is not and .Net is all about ANSI (what a waste of memory) I plan to continue this project into a .net at a later date as an addition. MSDN gives me Structures and Functions and what should link to what ok but say little to what they get used for. What is available in my language Delphi is way over priced that it needs a major price drop.

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  • Getting memory allocation in segement control

    - by Rani
    Hi guys, I'm getting object allocation at segement control.I used same controller for adding favourites and while in didselect action.In present modelviewcontrol i didn't use segment control and in didselect i used segemnt control .So, am not getting how to release segemnt control . Can any one help to solve this. Thanks in advance.

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