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  • Paperclip validates_attachment_content_type for mp3 triggered when attaching mp3

    - by zoltarSpeaks
    Hey everyone, Struggling to workout when i add the following validtion to my Voice model using paperclip, it is being triggered when i try and upload an mp3: class Voice < ActiveRecord::Base has_attached_file :clip validates_attachment_presence :clip validates_attachment_content_type :clip, :content_type => [ 'application/mp3', 'application/x-mp3', 'audio/mpeg', 'audio/mp3' ], :message => 'file must be of filetype .mp3' validates_attachment_size :clip, :less_than => 10.megabytes validates_presence_of :title end I have tried a number of different mp3 files but none of them seem to upload because the validation is failing.

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  • How does ASP.Net MVC differ from Classic ASP (not ASP.Net--the original ASP)

    - by LuftMensch
    I'm trying to get a high-level understanding of ASP.Net MVC, and it has started to occur to me that it looks a lot like the original ASP script. Back in the day, we were organizing our "model"/business logic code into VBScript classes, or into VB COM components. Of course, now we have the additional power of c# and the .net framework classes. Besides the high-level oo and other capabilities in c# and .Net, what are the other major differences between the original ASP and ASP.Net MVC?

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  • Databinding to ObservableCollection in a different UserControl?

    - by Dave
    Question re-written on 2010-03-24 I have two UserControls, where one is a dialog that has a TabControl, and the other is one that appears within said TabControl. I'll just call them CandyDialog and CandyNameViewer for simplicity's sake. There's also a data management class called Tracker that manages information storage, which for all intents and purposes just exposes a public property that is an ObservableCollection. I display the CandyNameViewer in CandyDialog via code behind, like this: private void CandyDialog_Loaded( object sender, RoutedEventArgs e) { _candyviewer = new CandyViewer(); _candyviewer.DataContext = _tracker; candy_tab.Content = _candyviewer; } The CandyViewer's XAML looks like this (edited for kaxaml): <Page xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"> <Page.Resources> <DataTemplate x:Key="CandyItemTemplate"> <Grid> <Grid.ColumnDefinitions> <ColumnDefinition Width="120"></ColumnDefinition> <ColumnDefinition Width="150"></ColumnDefinition> </Grid.ColumnDefinitions> <TextBox Grid.Column="0" Text="{Binding CandyName}" Margin="3"></TextBox> <!-- just binding to DataContext ends up using InventoryItem as parent, so we need to get to the UserControl --> <ComboBox Grid.Column="1" SelectedItem="{Binding SelectedCandy, Mode=TwoWay}" ItemsSource="{Binding RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type UserControl}}, Path=DataContext.CandyNames}" Margin="3"></ComboBox> </Grid> </DataTemplate> </Page.Resources> <Grid> <ListBox DockPanel.Dock="Top" ItemsSource="{Binding CandyBoxContents, Mode=TwoWay}" ItemTemplate="{StaticResource CandyItemTemplate}" /> </Grid> </Page> Now everything works fine when the controls are loaded. As long as CandyNames is populated first, and then the consumer UserControl is displayed, all of the names are there. I obviously don't get any errors in the Output Window or anything like that. The issue I have is that when the ObservableCollection is modified from the model, those changes are not reflected in the consumer UserControl! I've never had this problem before; all of my previous uses of ObservableCollection updated fine, although in those cases I wasn't databinding across assemblies. Although I am currently only adding and removing candy names to/from the ObservableCollection, at a later date I will likely also allow renaming from the model side. Is there something I did wrong? Is there a good way to actually debug this? Reed Copsey indicates here that inter-UserControl databinding is possible. Unfortunately, my favorite Bea Stollnitz article on WPF databinding debugging doesn't suggest anything that I could use for this particular problem.

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  • "uninitialized constant Authlogic"

    - by RailAddict
    Just followed the Authlogic tutorial. I am getting "uninitialized constant Authlogic" when I try run the app. After searching, I can see that it has to do with gems/plugins but I can't find a solution. Edit: My UserSession model is: class UserSession < Authlogic::Session::Base end

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  • Multiple selection datagrid before click on datagrid

    - by Jakub Cermoch
    I have wpf datagrid with multiple selection (model has properties IsSelected...) and it works fine, but when I start program, I have to click on the table first and after that work multiple selection. When I first click on the table it select item under cursor (if i have pressed shift, it select the item too, not do multiple selection). I supposed it can be because of datagrid hasnt focus, but when I do datagrid.Focus() on loaded window, it doesnt helped. Thanks a lot

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  • DDD Modeling questions : student, classroom, seats and a favorite seat for a student.

    - by Erik Ashepa
    Hi, i'm not sure how to model this relationship... A classroom contains many seats, every student studies in a classroom and have a favorite seat within it. The way i see it, i have two aggregate roots: classroom and student, seats a are entities aggregatged by classroom... And for a student to have a fovorite seat, it must hold a reference to it (seat isn't an aggregate root). Any suggestions? Thanks in advance, Erik.

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  • What can tables do that CSS positioning cannot?

    - by Jeremy Lew
    I know there are various good arguments preferring css positioning over table-based layouts. What I'm wondering is whether the CSS model is complete (assuming a relatively modern browser) with respect to ALL of the capabilities of tables. Are there layouts that tables can achieve that are impossible or impractical with CSS?

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  • Linq 2 SQL One to Zero or One relationship possible?

    - by Mr. Flibble
    Is it possible to create a one to zero or one relationship in Linq2SQL? My understanding is that to create a one to one relationship you create a FK relationship on the PK of each table. But you cannot make the PK nullable, so I don't see how to make a one to zero or one relationship work? I'm using the designer to automatically create the model - so I would like to know how to set up the SQL tables to induce the relationship - not some custom ORM code.

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  • Fluid CSS: floating column with max-width and overflow

    - by Ates Goral
    I'm using a fluid layout in the new theme that I'm working on for my blog. I often blog about code and include <pre> blocks within the posts. The float: left column for the content area has a max-width so that the column stops at a certain maximum width and can also be shrunk: +----------+ +------+ | text | | text | | | | | | | | | | | | | | | | | | | | | +----------+ +------+ max shrunk What I want is for the <pre> elements to be wider than the text column so that I can fit 80-character-wrapped code without horizontal scroll bars. But I want the <pre> elements to overflow from the content area, without affecting its fluidity: +----------+ +------+ | text | | text | | | | | +----------+--+ +------+------+ | code | | code | +----------+--+ +------+------+ | | | | +----------+ +------+ max shrunk But, max-width stops being fluid once I insert the overhanging <pre> in there: the width of the column remains at the specified max-width even when I shrink the browser beyond that width. I've reproduced the issue with this bare-minimum scenario: <div style="float: left; max-width: 460px; border: 1px solid red"> <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit</p> <pre style="max-width: 700px; border: 1px solid blue"> function foo() { // Lorem ipsum dolor sit amet, consectetur adipisicing elit } </pre> <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit</p> </div> I noticed that doing either of the following brings back the fluidity: Remove the <pre> (doh...) Remove the float: left The workaround I'm currently using is to insert the <pre> elements into "breaks" in the post column, so that the widths of the post segments and the <pre> segments are managed mutually exclusively: +----------+ +------+ | text | | text | +----------+ +------+ +-------------+ +-------------+ | code | | code | +-------------+ +-------------+ +----------+ +------+ +----------+ +------+ max shrunk But this forces me to insert additional closing and opening <div> elements into the post markup which I'd rather keep semantically pristine. Admittedly, I don't have a full grasp of how the box model works with floats with overflowing content, so I don't understand why the combination of float: left on the container and the <pre> inside it cripple the max-width of the container. I'm observing the same problem on Firefox/Chrome/Safari/Opera. IE6 (the crazy one) seems happy all the time. This also doesn't seem dependent on quirks/standards mode. Update I've done further testing to observe that max-width seems to get ignored when the element has a float: left. I glanced at the W3C box model chapter but couldn't immediately see an explicit mention of this behaviour. Any pointers?

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  • Ruby on Rails: models that do not have a table

    - by randombits
    What's the best way to create a model in Ruby on Rails that doesn't have an underlying implementation in as far as a database table goes? It's very common to write classes that perform behavior on a particular problem domain, yet can use some of the benefits that ActiveRecord has such as validation. Is it best to just create it as a module or helper? What is the best practice here?

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  • django views getid

    - by Hulk
    class host(models.Model): emp = models.ForeignKey(getname) def __unicode__(self): return self.topic In views there is the code as, real =[] for emp in my_emp: real.append(host.objects.filter(emp=emp.id)) This above results only the values of emp,My question is that how to get the ids along with emp values. Thanks..

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  • Edit links in GridModel (MVCContrib)

    - by DucDigital
    http://stackoverflow.com/questions/1458782/mvccontrib-gridmodel-is-it-possible-to-do-actionsyntax-in-a-gridmodel I've read this article and it's quite useful but I can't apply this. I don't know if in the newest MVCContrib, they removed the ".Action()" because somehow I cannot access this. Is there someway i can put the ActionLink of the edit link into a grid model? Thank you

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  • Fluent Nhibernate - Mapping two entities to same table

    - by Andy
    Hi, I'm trying to map two domain entities to the same table. We're doing a smart entity for our domain model, so we have the concept of an Editable Address and a readonly Address. I have both mapped using Classmaps, and everything seems to go fine until we try to export the schema using the SchemaExport class from NHibernate. It errors out saying the table already exists. I assume it's something simple that I'm just not seeing. Any ideas? Thanks

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  • Asp.net Dynamic Data - Field not rendered on List page

    - by Christo Fur
    I have created a Dynamic Data site against an Entity Framework Model I have 2 fields which are nvarchar(max) in the DB and they do not get rendered on the list view This is probably a sensible default But how do I overide this? Have tried adding various attributes to my MetaData class e.g [ScaffoldColumn(true)] [UIHint("RuleData")] But no joy with that Any ideas?

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  • Matlab Simulink version control with multiple developers

    - by Jon Mills
    We're using Matlab Simulink for model development (and Real-Time Workshop autocoding) within a team of several developers. We currently use Visual Source Safe (yes, I know its terrible) for version control, using locks to prevent conflicting changes. We'd like to migrate our programme to a different version control system (svn, hg or git), but we're concerned about performing merges and diffs on Simulink .mdl files. Does anybody have useful experience in performing merges on Simulink files?

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  • Dojo JsonRest store and dijit.Tree

    - by user1427712
    I'm having a some problem making JSonRest store and dijit.Tree with ForestModel. I've tried some combination of JsonRestStore and json data format following many tips on the web, with no success. At the end, taking example form here http://blog.respondify.se/2011/09/using-dijit-tree-with-the-new-dojo-object-store/ I've made up this simple page (I'm using dojotolkit 1.7.2) <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> <title>Tree Model Explorer</title> <script type="text/javascript"> djConfig = { parseOnLoad : true, isDebug : true, } </script> <script type="text/javascript" djConfig="parseOnLoad: true" src="lib/dojo/dojo.js"></script> <script type="text/javascript"> dojo.require("dojo.parser"); dojo.require("dijit.Tree"); dojo.require("dojo.store.JsonRest"); dojo.require("dojo.data.ObjectStore"); dojo.require("dijit.tree.ForestStoreModel"); dojo.addOnLoad(function() { var objectStore = new dojo.store.JsonRest({ target : "test.json", labelAttribute : "name", idAttribute: "id" }); var dataStore = new dojo.data.ObjectStore({ objectStore : objectStore }); var treeModel = new dijit.tree.ForestStoreModel({ store : dataStore, deferItemLoadingUntilExpand : true, rootLabel : "Subjects", query : { "id" : "*" }, childrenAttrs : [ "children" ] }); var tree = new dijit.Tree({ model : treeModel }, 'treeNode'); tree.startup(); }); </script> </head> <body> <div id="treeNode"></div> </body> </html> My rest service responds the following json { data: [ { "id": "PippoId", "name": "Pippo", "children": [] }, { "id": "PlutoId", "name": "Pluto", "children": [] }, { "id": "PaperinoId", "name": "Paperino", "children": [] } ]} I've tried also with the following response (actually my final intention n is to use lazy loading for the tree) { data: [ { "id": "PippoId", "name": "Pippo", "$ref": "author0", "children": true }, { "id": "PlutoId", "name": "Pluto", "$ref": "author1", "children": true }, { "id": "PaperinoId", "name": "Paperino", "$ref": "author2", "children": true } ]} Neither of the two works. I see no error message in firebug. I simply see the root "Subject" on the page. Thanks to anybody could help in some way.

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  • SQL Server "User-Schema Separation" and Entity Framework issues

    - by Ryan
    I have been fooling around with EF with a database that has implemented user-schema separation with a twist, there are multiple tables with the same name but are separated via the schema. So like: admin.tasks staff.tasks contractor.tasks When I created my EF model I noticed that there were 3 tasks tables: tasks tasks1 tasks2 Is this by design? Also is there a way to tell EF to add the schema to the name of the entity or am I SOL and doing it myself?

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  • Modelling class realtions

    - by phenevo
    Hi, I have a few classes: Article: Content, ID, Magazine: Name Code, And 3 tables in database: Articles, Magazines and ArticlesinMagazines (two fields: IDArticle and CodeMagazine) In App, I've got module to manage Articles, and datagridview to relate their with magazines DataGridView has twofields: MagazineCode, IsPublished. The same article can be in many magazines (1:n) How would you implement on model ? Article have to has a field : List ?? I concern because Magazine associates articles

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  • Multiple dependent select boxes, the Rails way?

    - by Adam Carlile
    Hey Guys I am trying to create a car application, each car belongs to a make and model, but only certain makes have certain models. So I would like a series of select boxes that are populated dynamically based on the previous, however I also would like to add another record to that select box if you cant find the one you want. I would just like to know your thoughts on how to accomplish this in a rails way? Cheers Adam

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