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Search found 1214 results on 49 pages for 'jeff sheldon'.

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  • How do I restrict foreign keys choices to related objects only in django

    - by Jeff Mc
    I have a two way foreign relation similar to the following class Parent(models.Model): name = models.CharField(max_length=255) favoritechild = models.ForeignKey("Child", blank=True, null=True) class Child(models.Model): name = models.CharField(max_length=255) myparent = models.ForeignKey(Parent) How do I restrict the choices for Parent.favoritechild to only children whose parent is itself? I tried class Parent(models.Model): name = models.CharField(max_length=255) favoritechild = models.ForeignKey("Child", blank=True, null=True, limit_choices_to = {"myparent": "self"}) but that causes the admin interface to not list any children.

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  • Converting ASP.NET MVC to n-Tiered Architecture

    - by Jeff
    I just built an application using ASP.NET MVC. The programmers at my company want to build all future modules using n-Tiered (Presentation Layer, Business Logic Layer, Data Access Layer) architecture. I am not the programmer and need to know why this makes sense? Do I have to completely rewrite the entire code or can it be converted? We are building an HRIS system with Business Intelligence. Somebody please explain why or why not this approach does or does not make sense.

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  • What is an overloaded operator in c++?

    - by Jeff
    I realize this is a basic question but I have searched online, been to cplusplus.com, read through my book, and I can't seem to grasp the concept of overloaded operators. A specific example from cplusplus.com is: // vectors: overloading operators example #include <iostream> using namespace std; class CVector { public: int x,y; CVector () {}; CVector (int,int); CVector operator + (CVector); }; CVector::CVector (int a, int b) { x = a; y = b; } CVector CVector::operator+ (CVector param) { CVector temp; temp.x = x + param.x; temp.y = y + param.y; return (temp); } int main () { CVector a (3,1); CVector b (1,2); CVector c; c = a + b; cout << c.x << "," << c.y; return 0; } from http://www.cplusplus.com/doc/tutorial/classes2/ but reading through it I'm still not understanding them at all. I just need a basic example of the point of the overloaded operator (which I assume is the "CVector CVector::operator+ (CVector param)"). There's also this example from wikipedia: Time operator+(const Time& lhs, const Time& rhs) { Time temp = lhs; temp.seconds += rhs.seconds; if (temp.seconds >= 60) { temp.seconds -= 60; temp.minutes++; } temp.minutes += rhs.minutes; if (temp.minutes >= 60) { temp.minutes -= 60; temp.hours++; } temp.hours += rhs.hours; return temp; } from "http://en.wikipedia.org/wiki/Operator_overloading" The current assignment I'm working on I need to overload a ++ and a -- operator. Thanks in advance for the information and sorry about the somewhat vague question, unfortunately I'm just not sure on it at all.

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  • How to set initial size of a TreeViewer?

    - by Jeff
    Hello, I'm using a TreeViewer within a jface WizardPage and the initial input into the tree causes the WizardPage to grow vertically so that it can show all of the tree's values. When expanding one of the tree's values, then the vertical scrollbar works as expected. I'd like to be able to set the tree's size initially so that it is fixed and the scrollbar is already shown when the WizardPage is first drawn, but doing this isn't particularly obvious to me - the setSize method on the TreeViewer's Tree doesn't seem to do anything. Any help would be appreciated!

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  • How can I support conditional validation of model properties

    - by Jeff
    I currently have a form that I am building that needs to support two different versions. Each version might use a different subset of form fields. I have to do this to support two different clients, but I don't want to have entirely different controller actions for both. So, I am trying to come up with a way to use a strongly typed model with validation attributes but have some of these attributes be conditional. Some approaches I can think of is similar to steve sanderson's partial validation approach. Where I would clear the model errors in a filter OnActionExecuting based on which version of the form was active. The other approach I was thinking of would to break the model up into pieces using something like class FormModel { public Form1 Form1Model {get; set;} public Form2 FormModel {get; set;} } and then we would validate appropriately depending on

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  • Java serialization testing

    - by Jeff Storey
    Does anyone know if there is a library that exists to help test if an object graph is fully serializable? It would probably be as simple as writing it out and reading it back in, but I figured someone must have abstracted this already - I just can't find it.

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  • Retrieve class name hierarchy as string

    - by Jeff Wain
    Our system complexity has risen to the point that we need to make permission names tied to the client from the database more specific. In the client, permissions are referenced from a static class since a lot of client functionality is dependent on the permissions each user has and the roles have a ton of variety. I've referenced this post as an example, but I'm looking for a more specific use case. Take for instance this reference, where PermissionAlpha would be a const string: return HasPermission(PermissionNames.PermissionAlpha); Which is great, except now that things are growing more complex the classes are being structured like this: public static class PermissionNames { public static class PermissionAlpha { public const string SubPermission; } } I'm trying to find an easy way to reference PermissionAlpha in this new setup that will act similar to the first declaration above. Would the only way to do this be to resort to pulling the value of the class name like in the example below? I'm trying to keep all the names in one place that can be reference anywhere in the application. public static class PermissionAlpha { public static string Name { get { return typeof(PermissionAlpha).Name; } } }

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  • Can't compile grails Tomcat plugin

    - by Jeff Beck
    I'm using Netbeans to build a Grails app, while I have used this fine before on this new computer I can not get even the basic project to compile and run. I am getting errors around compiling the Tomcat plugin. If I uninstall the plugin it and use Jetty instead it will compile but the project isn't set up for Jetty and is missing files. Below is the error I'm getting I'm thinking it is some issue with my classpath but I just don't know where to start any help would be much appreciated. java.lang.NoClassDefFoundError: org/apache/catalina/startup/Tomcat$ExistingStandardWrapper

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  • Change string in SQL Server to abbreviate

    - by jeff
    How do I return the everything in a string from a sql query before a certain character? My data looks like this: HD TV HM45VM - HDTV widescreen television set with 45" lcd I want to limit or truncate the string to include everything before the dash. So the final result would be "HD TV HM45VM"

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  • A 4-byte Unsigned Int for Sql Server 2008?

    - by Jeff Meatball Yang
    I understand there are multiple questions about this on SO, but I have yet to find a definitive answer of "yes, here's how..." So here it is again: What are the possible ways to store an unsigned integer value (32-bit value or 32-bit bitmap) into a 4-byte field in SQL Server? Here are ideas I have seen: 1) Use a -1*2^31 offset for all values Disadvantages: need to perform math on the values before reading/writing/aggregating. 2) Use 4 tinyint fields Disadvantages: need to concatenate values to perform any operations 3) Use binary(4) Disadvantages: actually uses 4 + 2 bytes of space

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  • Returning currently displayed index of an array Javascript...

    - by Jeff Kindred
    I have a simple array with x number of items. I am displaying them individually via a link click... I want to update a number that say 1 of 10. when the next one is displayed i want it to display 2 of 10 etc... I have looked all around and my brain is fried right now... I know its simple I just cant get it out. <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/> <title>Page Title</title> <link rel="stylesheet" href="style.css" type="text/css" media="screen" charset="utf-8"/> <script type="text/javascript"> var quotations = new Array() quotations[0]= "1" quotations[1]= "2" quotations[2]= "3" quotations[3]= "4" quotations[4]= "5" quotations[5]= "6" quotations[6]= "7" numQuotes = quotations.length; curQuote = 1; function move( xflip ) { curQuote = curQuote + xflip; if (curQuote > numQuotes) { curQuote = 1 ; } if (curQuote == 0) { curQuote = numQuotes ; } document.getElementById('quotation').innerHTML=quotations[curQuote - 1]; } var curPage = //this is where the current index should go </script> </head> <body> <div id="quotation"> <script type="text/javascript">document.write(quotations[0]);</script> </div> <div> <p><a href="javascript();" onclick="move(-1)">GO back</a> <script type="text/javascript">document.write(curPage + " of " + numQuotes)</script> <a href="javascript();" onclick="move(1)">GO FORTH</a></p> </div> </body> </html>

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  • Adding css class to jspDrag on scroll

    - by Jeff
    Today I implemented the horizontal jScrollPane script and the element I intended to scrolls like a charm. Via CSS I'm using an image for the jspDrag element. Now for my question; I see that there are a few css classes added to the jspDrag like jspHover and jspActive. Is it also possible to add css classes when I scroll to the left or right? I would like to do this, so I can change the image according to the scroll. (Hoping my question is clear, a reaction would be highly appreciated. Kind regards)

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  • [Rails] checkbox to update attribute

    - by Jeff
    [Updated a bit] I have a Task model that has a :completed boolean attribute. If I click on it I want it to execute the 'finish' method. The main problem is that I am displays a series of checkboxes in a list and subsequent checkboxes after the first one are ignored. The method is never called for the given task/checkbox combo. I have this chunk of code in my view: <% current_user.tasks.each do |t|%> <% if t.completed == false %> <%= check_box_tag :completed, true, checked = false %> <%= observe_field :completed, :url => { :controller => 'tasks', :action => :finish , :id => t.id }, :frequency => 0.25, :update => :completed, :with => true %> and my finish method looks like this: def finish @task = Task.find(params[:id]) new = {:completed => true} @task.update_attributes(new) render :update do |page| page.replace_html "taskListing", :partial => 'home/task_listing' end

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  • Parse multiple filters in SQL

    - by Jeff Meatball Yang
    I have a problem parsing a stored procedure parameter in the form: declare @S varchar(100) set @S = '4=2,24=1534' Here's the query: select cast(idx as varchar(100)) 'idx' , value , SUBSTRING(value, 1, charindex(value, '=')+1) 'first' , SUBSTRING(value, charindex(value, '=')+1, LEN(value)-charindex(value, '=')-1) 'second' from Common.SplitToTable(@S, ',') -- returns (idx int, value varchar(max)) where len(value) > 0 But here is the result I get: idx value first second 0 4=2 4 4= 1 24=1534 2 24=153 Here's what I expected: idx value first second 0 4=2 4 2 1 24=1534 2 1534 Help?

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  • ios - UISegmentedControl and NSString

    - by Jeff Kranenburg
    Hello I have the following code: if(_deviceSegmentCntrl.selectedSegmentIndex == 0) { deviceOne = [[NSString alloc] initWithFormat:@"string01"]; } if(_deviceSegmentCntrl.selectedSegmentIndex == 1) { deviceOne = [[NSString alloc] initWithFormat:@"string02"]; } if(_deviceSegmentCntrl.selectedSegmentIndex == 2) { deviceOne = [[NSString alloc] initWithFormat:@"string03"]; } NSString *deviceType = [[NSString alloc] initWithFormat:_deviceSegmentCntrl]; I am wanting to have the NSString output the string the user selects in the segmented control. How do I append the initWithFormat: so that it reflects the chosen index? Cheers

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  • NotApplicable marker with display pattern

    - by Jeff Barger
    Ok, so I'm pretty new to Cocoa, especially Bindings, but here's what I'm trying to do. I've got a Core Data model consisting of two entities: Category and Item. Category has a to-many relationship to Item called children, and Item has a relationship to Category called parent. Item has two attributes that Category does not have: quantity and desiredQuantity. What I'd like to do is display the tree in an NSOutlineView with two columns. One column is bound to the name of either the Category or the Item. I want to the second column to display something along the lines of 2 of 5 for the Item rows and nothing at all for the Category rows. When I use a display pattern, the Category rows end up showing of I noticed that if I don't use a display pattern for the second column, and instead just bind its Value to either the quantity or the desiredQuantity, the Category rows show nothing; its only if I try to use the display pattern. How can I make it display nothing for the Category rows and still use the display pattern? Or can I? Edit: I guess I didn't explain what the NotApplicable marker has to do with anything - Category does have properties for quantity and desiredQuantity, but they just return NSNotApplicableMarker.

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  • XSLT: moving a grouping html elements into section levels

    - by Jeff
    Hello there, I'm trying to write an XSLT that organizes an HTML file into different section levels depending on the header level. Here is my input: <html> <head> <title></title> </head> <body> <h1>HEADER 1 CONTENT</h1> <p>Level 1 para</p> <p>Level 1 para</p> <p>Level 1 para</p> <p>Level 1 para</p> <h2>Header 2 CONTENT</h2> <p>Level 2 para</p> <p>Level 2 para</p> <p>Level 2 para</p> <p>Level 2 para</p> </body> </html> I'm working with a fairly simple structure at the moment so this pattern will be constant for the time-being. I need an output like this... <document> <section level="1"> <header1>Header 1 CONTENT</header1> <p>Level 1 para</p> <p>Level 1 para</p> <p>Level 1 para</p> <p>Level 1 para</p> <section level="2"> <header2>Header 2 CONTENT</header2> <p>Level 2 para</p> <p>Level 2 para</p> <p>Level 2 para</p> <p>Level 2 para</p> </section> </section> </document> I had been working with this example: Stackoverflow Answer However, I cannot get it to do exactly what I need. I'm using Saxon 9 to run the xslt within Oxygen for dev. I'll be using a cmd/bat file in production. Still Saxon 9. I'd like to handle up to 4 nested section levels if possible. Any help is much appreciated! I need to append onto this as I've encountered another stipulation. I probably should have thought of this before. I'm encountering the following code sample <html> <head> <title></title> </head> <body> <p>Level 1 para</p> <p>Level 1 para</p> <p>Level 1 para</p> <p>Level 1 para</p> <h1>Header 2 CONTENT</h1> <p>Level 2 para</p> <p>Level 2 para</p> <p>Level 2 para</p> <p>Level 2 para</p> </body> </html> As you can see, the <p> is a child of <body> while in my first snippet, <p> was always a child of a header level. My desired result is the same as above except that when I encounter <p> as a child of <body>, it should be wrapped in <section level="1">. <document> <section level="1"> <p>Level 1 para</p> <p>Level 1 para</p> <p>Level 1 para</p> <p>Level 1 para</p> </section> <section level="1"> <header1>Header 2 CONTENT</header1> <p>Level 2 para</p> <p>Level 2 para</p> <p>Level 2 para</p> <p>Level 2 para</p> </section> </document>

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  • change string in mssql to abbreviate

    - by jeff
    How do I return the everything in a string from a sql query before a certain character? My data looks like this: HD TV HM45VM - HDTV widescreen television set with 45" lcd I want to limit or truncate the string to include everything before the dash. So the final result would be "HD TV HM45VM"

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  • How to access a website's url programmatically from within the page

    - by Jeff
    For work, I am working on a site that has a feature that lets users make custom instances of the site depending on who they want to show it to. So if they want to show their potential employer a little bit about themselves, they can send them a custom url, that has a uid on the end of it that tells the database what to show and what not to when the site is loaded up. Now, I need to be able to take the value that is on the end of the url, this unique uid that corresponds with their preferences in the db, accessable on run time. Meaning that when someone types in this custom url, I need to be able to show the name of the person whose portfolio is being viewed BEFORE password authentication takes place... If I could get the URL, I suppose I could parse through it to find the necessary UID...but how do I get the url? Maybe I am just missing something here, but if anyone has any thoughts or ideas, it would be appreciated!! Thanks

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