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  • How to change the binding of Meta key which runs the Unity's Dash?

    - by LFC_fan
    Currently, I am using the Unity Qt panel in my Gnome desktop of Ubuntu 10.10, and when I press the Meta a.k.a. Windows key, the Unity's dash launches, and I can't use any compiz based shortcuts. Same behaviour is exhibited when I log in to Unity 2D as well, as the Meta key launches the dash. I have no desire to change my Compiz shortcuts, so is there any way to change the keyboard mapping of Unity 2D's dash to something other or disable this shortcut completely?

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  • How to change the binding of Windows key which runs Unity's Dash?

    - by LFC_fan
    Currently, I am using the Unity Qt panel in my Gnome desktop, and when I press the Windows key, the Unity's dash launches, and I can't use any compiz based shortcuts. Same behaviour is exhibited when I log in to Unity 2D as well, as the Windows key launches the dash. I have no desire to change my Compiz shortcuts, so is there any way to change the keyboard mapping of Unity 2D's dash to something other or disable this shortcut completely?

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  • How to generate an extended F key press (F13-F20)?

    - by Emilien
    I need to submit an extended function key (like F17 or F17 ) to a program that runs in the terminal (I use the default gnome-terminal but could use another if it works there). Is there a way in Ubuntu 11.04 to generate those key hits? I'm searching for something like Shift+F7 to generate F17 (what I currently use in Reflection under Windows). My keyboard is set to generic 105 keys PC with the US Qwerty layout.

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  • Rhythmbox plugin code for hot key not working - why?

    - by Bunny Rabbit
    def activate(self,shell): self.shell = shell self.copy_selected() self.action = gtk.Action ('foo','bar','baz',None) self.activate_id = self.action.connect ('activate', self.call_bk_fn,self.shell) self.action_group = gtk.ActionGroup ('hot_key_action_group') self.action_group.add_action_with_accel (self.action, "<control>E") uim = shell.get_ui_manager () uim.insert_action_group (self.action_group, 0) uim.ensure_update () def call_bk_fn(): print('hello world') I am using the above code in a plugin for Rhythmbox and here I am trying to register the key Ctrl+E so that the call_bk_fn gets called whenever the key combination is pressed but its not working. Why is that so ?

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  • Encrypted home with Ecryptfs - How to store the key file if i missed it on first boot?

    - by Abstaubaer
    I installed Ubuntu 12.04 with encrypted Home-directory. When I first booted I was given the option to store a key file to some Flash-drive (USB) or anything and there was a hint how to do it later. I wanted to do it later but now can't find where to find or how to generate the key file in any documentation. So whats the command, where's the file? Ecryptfs-manger only offers me to generate a new pair. Thanks a lot in advance

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  • Reformating xml document

    - by Joseph Reeves
    I have an xml document in the format below: <key>value</key> <key>value</key> <key>value</key> But need to convert it to the following: <tag k='key' v='value' /> <tag k='key' v='value' /> <tag k='key' v='value' /> The original xml file is roughly 20,000 lines long, so I'm keen to automate as much as possible! I've looked at xmlstarlet, but drew a blank with it. Presumably it would be a good place to start though? Help gratefully received, thanks.

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  • Locking Cache Key without Locking the entire Cache

    - by Gandalf
    I have servlets that caches user information rather then retrieving it from the user store on every request (shared Ehcache). The issue I have is that if a client is multi-threaded and they make more then one simultaneous request, before they have been authenticated, then I get this in my log: Retrieving User [Bob] Retrieving User [Bob] Retrieving User [Bob] Returned [Bob] ...caching Returned [Bob] ...caching Returned [Bob] ...caching What I would want is that the first request would call the user service, while the other two requests get blocked - and when the first request returns, and then caches the object, the other two requests go through: Retrieving User [Bob] blocking... blocking... Returned [Bob] ...caching [Bob] found in cache [Bob] found in cache I've thought about locking on the String "Bob" (because due to interning it's always the same object right?). Would that work? And if so how do I keep track of the keys that actually exist in the cache and build a locking mechanism around them that would then return the valid object once it's retrieved. Thanks.

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  • Entity Framework Adding new record with foreign key constraint

    - by Brono The Vibrator
    In an effort to learn the entity framework I have created two tables in a one to many relationship. The one table (Author) has the following fields - AuthorID, FirstName, LastName. The many table (Payroll) has the following fields - PayrollID, AuthorID, Salary. I have CRUD stored procdures for insert, update and delete. What I am tying to figure-out is how to add new payroll records to the payroll table.

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  • flex combobox backspace or delete key does not delete highlighted text

    - by crazy horse
    Context: I am implementing a flex auto-suggest combobox - as the user types in each character: Consider the string 'Stackoverflow' and user input = 'st' 1) the data provider is filtered to show all items starting with 'st' 2) text is set to auto-suggest string such that the un-typed part is highlighted. So for instance, the combobox text may contain st'ackoverflow', where 'ackoverflow' is highlighted using setSelectedIndex() Issue: When I hit back-space or delete, and check the 'this.text' value, I expect that the last un-highlighted character ('t' in the above case) gets deleted and the data provider is filtered to show all items starting with 's'. However the text property contains 'st', as before Question: what am I missing? What else can I try out?

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  • Composite Key Dictionary

    - by AaronLS
    I have some objects in List, let's say List<MyClass> and MyClass has several properties. I would like to create an index of the list based on 3 properties of of MyClass. In this case 2 of the properties are int's, and one property is a datetime. Basically I would like to be able to do something like: Dictionary< CompositeKey , MyClass > MyClassListIndex = Dictionary< CompositeKey , MyClass >(); //Populate dictionary with items from the List<MyClass> MyClassList MyClass aMyClass = Dicitonary[(keyTripletHere)]; I sometimes create multiple dictionaries on a list to index different properties of the classes it holds. I am not sure how best to handle composite keys though. I considered doing a checksum of the three values but this runs the risk of collisions.

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  • Django: UserProfile with Unique Foreign Key in Django Admin

    - by lazerscience
    Hi, I have extended Django's User Model using a custom user profile called UserExtension. It is related to User through a unique ForeignKey Relationship, which enables me to edit it in the admin in an inline form! I'm using a signal to create a new profile for every new user: def create_user_profile(sender, instance, created, **kwargs): if created: try: profile, created = UserExtension.objects.get_or_create(user=instance) except: pass post_save.connect(create_user_profile, sender=User) (as described here for example: http://stackoverflow.com/questions/44109/extending-the-user-model-with-custom-fields-in-django) The problem is, that, if I create a new user through the admin, I get an IntegritiyError on saving "column user_id is not unique". It doesnt seem that the signal is called twice, but i guess the admin is trying to save the profile AFTERWARDS? But I need the creation through signal if I create a new user in other parts of the system!

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  • Key Coder/Observer example for Iphone

    - by ReduxDJ
    I'm trying to implement KVO into an application, yet, I've followed the documentation provided by Apple, however I can't get it to work. I'm hoping to see a bare minimal example of how to use this with my NSObjects. My use case, is I want one item in a table-cell to update without loading the entire data in a tableView because I am loading images from URLs and I don't want to reload all of the image, while I am polling a server. Thanks,

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  • datamapper secondary key

    - by Luc
    Hello, I am using datamapper in a ruby application and I'm facing a problem I do not understand. I have a Appartment model and a Location model. An appartment is at a given location and several appartments can be at the same location. This typically described a 1-n relationship (I guess :-) ) My feeeling is that in the Appartement sql table I need a location_id but I do not want any Appartment pointers within the Location table. For me, Location should live on its own and should not reference appartment. In the Appartement ruby class, I have added: has n, Location but it then creates an appartment_id within the Location ruby class, which I do not want. Would you have any clue ? Thanks a lot, Luc

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  • Fluent NHibernate - How to map a non nullable foreign key that exists in two joined tables

    - by vakman
    I'm mapping a set of membership classes for my application using Fluent NHibernate. I'm mapping the classes to the asp.net membership database structure. The database schema relevant to the problem looks like this: ASPNET_USERS UserId PK ApplicationId FK NOT NULL other user columns ... ASPNET_MEMBERSHIP UserId PK,FK ApplicationID FK NOT NULL other membership columns... There is a one to one relationship between these two tables. I'm attempting to join the two tables together and map data from both tables to a single 'User' entity which looks like this: public class User { public virtual Guid Id { get; set; } public virtual Guid ApplicationId { get; set; } // other properties to be mapped from aspnetuser/membership tables ... My mapping file is as follows: public class UserMap : ClassMap<User> { public UserMap() { Table("aspnet_Users"); Id(user => user.Id).Column("UserId").GeneratedBy.GuidComb(); Map(user => user.ApplicationId); // other user mappings Join("aspnet_Membership", join => { join.KeyColumn("UserId"); join.Map(user => user.ApplicationId); // Map other things from membership to 'User' class } } } If I try to run with the code above I get a FluentConfiguration exception Tried to add property 'ApplicationId' when already added. If I remove the line "Map(user = user.ApplicationId);" or change it to "Map(user = user.ApplicationId).Not.Update().Not.Insert();" then the application runs but I get the following exception when trying to insert a new user: Cannot insert the value NULL into column 'ApplicationId', table 'ASPNETUsers_Dev.dbo.aspnet_Users'; column does not allow nulls. INSERT fails. The statement has been terminated. And if I leave the .Map(user = user.ApplicationId) as it originally was and make either of those changes to the join.Map(user = user.ApplicationId) then I get the same exception above except of course the exception is related to an insert into the aspnet_Membership table So... how do I do this kind of mapping assuming I can't change my database schema?

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  • Django: Summing values of records grouped by foreign key

    - by Dan0
    Hi there In django, given the following models (slightly simplified), I'm struggling to work out how I would get a view including sums of groups class Client(models.Model): api_key = models.CharField(unique=True, max_length=250, primary_key=True) name = models.CharField(unique=True, max_length=250) class Purchase(models.Model): purchase_date = models.DateTimeField() client = models.ForeignKey(SavedClient, to_field='api_key') amount_to_invoice = models.FloatField(null=True) For a given month, I'd like to see e.g. April 2010 For Each Client that purchased this month: * CLient: Name * Total amount of Purchases for this month * Total cost of purchases for this month For each Purchase made by client: * Date * Amount * Etc I've been looking into django annotation, but can't get my head around how to sum values of a field for a particular group over a particular month and send the information to a template as a variable/tag. Any info would be appreciated

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  • Can the public ssh key from my local machine be used to access two different users on a remote serve

    - by Nick
    I have an new ubuntu (hardy 8.04) server, it has two users, User1 and User2. User1 is listed in sudoers. I appended my public ssh key (my local machine's public key local/Users/nick/.ssh/id_rsa.pub) to authorized_keys in remote_server/home/user1/.ssh/authorized_keys, changed the permissions on user1/.ssh/ to 700 and user1/.ssh/authorized_keys to 600 and both file and folder are owned my User1. Then added I User1 to sshd_config (AllowUsers User1). This works and I can login into User1 debug1: Offering public key: /Users/nick/.ssh/id_rsa debug1: Server accepts key: pkalg ssh-rsa blen 277 debug1: Authentication succeeded (publickey). debug1: channel 0: new [client-session] debug1: Entering interactive session. Last login: Mon Mar 15 09:51:01 2010 from ..*.* I then copied the authorized_keys file remote_server/home/user1/.ssh/authorized_keys to remote_server/home/user2/.shh/authorized_keys and changed the permissions and ownership and added User2 to AllowUsers in sshd_config (AllowUsers User1 User2). Now when I try to login to User2 it will not authenticate the same public key. debug1: Offering public key: /Users/nick/.ssh/id_rsa debug1: Authentications that can continue: publickey debug1: Trying private key: /Users/nick/.ssh/identity debug1: Trying private key: /Users/nick/.ssh/id_dsa debug1: No more authentication methods to try. Permission denied (publickey). Am I missing something fundamental about the way ssh works? Thanks in advance, Nick

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  • gVim doesn't recognize the Meta (Alt) Key in an imap after changing the encoding

    - by René Nyffenegger
    In order to edit html files, I have the following three imaps in a file that I source for filetype html: imap <buffer> <M-[> &uuml; imap <buffer> <M-;> &ouml; imap <buffer> <M-'> &auml; This works fine until I change the encoding of the html file with set enc=utf-8. Now, pressing Alt-[ for example gives me a Û. Interestingly, after sourcing the same file again, it expands the imaps correctly. This doesn't really make sense to me. So, why is this and how can I have a more constistent environment regarding imap and utf-8. This is occuring with gVim 7.1 for Windows.

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  • Linq to Entities and POCO foreign key relations mapping (1 to 0..1) problem

    - by brainnovative
    For my ASP.NET MVC 2 application I use Entity Framework 1.0 as my data access layer (repository). But I decided I want to return POCO. For the first time I have encountered a problem when I wanted to get a list of Brands with their optional logos. Here's what I did: public IQueryable<Model.Products.Brand> GetAll() { IQueryable<Model.Products.Brand> brands = from b in EntitiesCtx.Brands.Include("Logo") select new Model.Products.Brand() { BrandId = b.BrandId, Name = b.Name, Description = b.Description, IsActive = b.IsActive, Logo = /*b.Logo != null ? */new Model.Cms.Image() { ImageId = b.Logo.ImageId, Alt = b.Logo.Alt, Url = b.Logo.Url }/* : null*/ }; return brands; } You can see in the comments what I would like to achieve. It worked fine whenever a Brand had a Logo otherwise it through an exception that you can assign null to the non-nullable type int (for Id). My workaround was to use nullable in the POCO class but that's not natural - then I have to check not only if Logo is null in my Service layer or Controllers and Views but mostly for Logo.ImageId.HasValue. It's not justified to have a non null Logo property if the id is null. Can anyone think of a better solution?

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  • How do I get the same key bindings in vmware's Window and Mac [closed]

    - by ragnarius
    I have a macbook but sometimes I run Windows in vmware to program in Visual Studio. I have a swedish keyboard, to get the curly brace '{' I press alt(=option)+shift+8 in mac, but to get the same character in vmware/windows I should press alt+7. Obviously, I would like to have the same keyboard layout in mac and windows, how can I make this happen? I have been recommended to use autohotkey on Windows, but I have a problem mapping AltGr shift 8 to a character (i.e. <^!+8:{ does not work) (I state the question in this forum because I think that only programmers can answer it, we are the only ones that use the characters []{} )

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  • Mapping a child collection without indexing based on database primary key or using bag

    - by Colin Bowern
    I have a existing parent-child relationship I am trying to map in Fluent Nhibernate: [RatingCollection] -- [Rating] Rating Collection has: ID (database generated ID) Code Name Rating has: ID (database generated id) Rating Collection ID Code Name I have been trying to figure out which permutation of HasMany makes sense here. What I have right now: HasMany<Rating>(x => x.Ratings) .WithTableName("Rating") .KeyColumnNames.Add("RatingCollectionId") .Component(c => { c.Map(x => x.Code); c.Map(x => x.Name); ); It works from a CRUD perspective but because it's a bag it ends up deleting the rating contents any time I try to do a simple update / insert to the Ratings property. What I want is an indexed collection but not using the database generated ID (which is in the six digit range right now). Any thoughts on how I could get a zero-based indexed collection (so I can go entity.Ratings[0].Name = "foo") which would allow me to modify the collection without deleting/reinserting it all when persisting?

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  • Django foreign key question

    - by Hulk
    All, i have the following model defined, class header(models.Model): title = models.CharField(max_length = 255) created_by = models.CharField(max_length = 255) def __unicode__(self): return self.id() class criteria(models.Model): details = models.CharField(max_length = 255) headerid = models.ForeignKey(header) def __unicode__(self): return self.id() class options(models.Model): opt_details = models.CharField(max_length = 255) headerid = models.ForeignKey(header) def __unicode__(self): return self.id() AND IN MY VIEWS I HAVE p= header(title=name,created_by=id) p.save() Now the data will be saved to header table .My question is that for this id generated in header table how will save the data to criteria and options table..Please let me know.. Thanks..

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  • The ViewData item that has the key 'MY KEY' is of type 'System.String' but must be of type 'IEnumerable<SelectListItem>'.

    - by JBibbs
    I am trying to populate a dropdown list from a database mapped with Linq 2 SQL, using ASP.NET MVC 2, and keep getting this error. I am so confused because I am declaring a variable with the type IEnumerable<SelectListItem> on the second line, but the error makes me think this is not the case. I feel like this should be very simple, but I am struggling. Any help is appreciated. Here are the interesting bits of my controller: public ActionResult Create() { var db = new DB(); IEnumerable<SelectListItem> basetypes = db.Basetypes.Select(b => new SelectListItem { Value = b.basetype, Text = b.basetype }); ViewData["basetype"] = basetypes; return View(); } And here are the interesting bits of my view: <div class="editor-label"> <%: Html.LabelFor(model => model.basetype) %> </div> <div class="editor-field"> <%: Html.DropDownList("basetype") %> <%: Html.ValidationMessageFor(model => model.basetype) %> </div> Here is the Post action when submitting the Form // POST: /Meals/Create [HttpPost] public ActionResult Create(Meal meal) { if (ModelState.IsValid) { try { // TODO: Add insert logic here var db = new DB(); db.Meals.InsertOnSubmit(meal); db.SubmitChanges(); return RedirectToAction("Index"); } catch { return View(meal); } } else { return View(meal); } } Thanks.

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