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  • ModelBinding to and EntitySet (MVC2 & LinqToSQL)

    - by Myster
    Hi all There seems to be an issue with the default model binder when binding to an EntitySet causes the EntitySet to be empty. The problem is described here and here: Microsoft's response is: ... We have now fixed this and the fix will be included in .NET Framework 4.0. With the new behavior, if the EntitySet passed into Assign is the same object as the one its being assigned to, no action will occur. With a work around being to edit the code generated like so: public override EntitySet<Thing> Things { get { return this._Things; } set { //CORRECTION: _Things= new EntitySet<Thing>(); _Things.Assign(value); //WAS: this._Things.Assign(value); } } As you can imagine this is not ideal as you have to re-add the code every time, does anyone have a better solution?

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  • StackOverflow for President

    - by Earthworm
    I was inspired to create this account today because stackoverflow has been an amazing resource and I have decided that it's time to create an account, and I hope what I can be as helpful to others as they have been to me in my endeavors. ?peace?

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  • Map a column to be IDENTITY in db with EF4 Code-Only

    - by Tomas Lycken
    Although I have marked my ID column with .Identity(), the generated database schema doesn't have IDENTITY set to true, which gives me problems when I'm adding records. If I manually edit the database schema (in SQL Management Studio) to have the Id column marked IDENTITY, everything works as I want it - I just can't make EF do that by itself. This is my complete mapping: public class EntryConfiguration : EntityConfiguration<Entry> { public EntryConfiguration() { Property(e => e.Id).IsIdentity(); Property(e => e.Amount); Property(e => e.Description).IsRequired(); Property(e => e.TransactionDate); Relationship(e => (ICollection<Tag>)e.Tags).FromProperty(t => t.Entries); } } As I'm using EF to build and re-build the database for integration testing, I really need this to be done automatically...

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  • Howto UML: sub methods / calls / operations / procedures

    - by hsmit
    How would you guys model this in UML (in a sequence diagram)? .. car1.drive(); .. ... in Car class: .. drive(){ this.startEngine(); } startEngine(){ this.getKey(); this.insertKey(); } .. a small begin: objx car1 ---- ---- | | | drive() | |-------->| startEngine() | |------------. | | | | |<-----------. | | But where comes the getKey() method? Must this be communicated via another sequence diagram? Or is there a way to include sub procedures?

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  • Getting a WebView to act exactly like Safari

    - by Kelly McDonald
    (edited to give a better description of the answer I gave) I have created a very simple browser in InterfaceBuilder consisting of a nav bar and a webview. Everything works fine except when I try to tab between input fields is the webview, the focus goes to the nav bar. I'm assuming I need to do something with the responder chain, but I haven't been able to figure out what. Any advice? Thanks, Kelly

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  • What are the best Perl Introductions and references?

    - by Kieveli
    I've been programming for 15+ years, and I've done perl programming 3 times in the past. Every time I come back to it, I remember nothing of the language. It's very bizarre. Now it's time to hit perl again, and I'm wondering what the best Intro / Reference / Best Practice sites are that people use. Which Perl Intro / Reference site do you recommend?

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  • Rails polymorphic associations, two assoc types in one class

    - by snitko
    Consider a class: class Link < ActiveRecord::Base has_many :link_votes, :as => :vote_subject, :class_name => 'Vote' has_many :spam_votes, :as => :vote_subject, :class_name => 'Vote' end The problem is, when I'm adding a new vote with @link.link_votes << Vote.new the vote_subject_type is 'Link', while I wish it could be 'link_votes' or something like that. Is this an AR limitation or is there a way to workaround this thing? I've actually found one related answer, but I'm not quite sure about what it says: http://stackoverflow.com/questions/1168047/polymorphic-association-with-multiple-associations-on-the-same-model/1764117#1764117

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  • Yii: Saving date and time in DB

    - by FaisalKhan
    I am having trouble saving the date in DB through Model. In my controller, if I dump the date in log that I receive from $_POST , I get the date in this format "10/Nov/2012 07:30". If I use: $AccountAppointment->start_date=Yii::app()->dateFormatter->format($_POST['AccountAppointment']['start_date'], 'dd/M/yyyy HH:mm'); I get the error: Invalid datetime format: 1292 Incorrect datetime value: '10/NoGMT+5/2012 07:30' for column 'start_date' Changing the format in dateFormatter to 'dd/M/yyyy HH:mm' or 'dd/MM/yyyy HH:mm' or 'dd/MMM/yyyy HH:mm' throws the same error. Db is MySQL 5.0, Yii version 1.1.12. Any help would be greatly appreciated, I am almost stuck....thanks....

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  • Overriding as_json has no effect?

    - by Ola Tuvesson
    I'm trying to override as_json in one of my models, partly to include data from another model, partly to strip out some unnecessary fields. From what I've read this is the preferred approach in Rails 3. To keep it simple, let's say I've got something like: class Country < ActiveRecord::Base def as_json(options={}) super( :only => [:id,:name] ) end end and in my controller simply def show respond_to do |format| format.json { render :json => @country } end end Yet whatever i try, the output always contains the full data, the fields are not filtered by the ":only" clause. Basically, my override doesn't seem to kick in, though if I change it to, say... class Country < ActiveRecord::Base def as_json(options={}) {foo: "bar"} end end ...I do indeed get the expected JSON output. Have I simply got the syntax wrong?

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  • ASP.NET MVC does not add ModelError when invoking from unit test

    - by Tomas Lycken
    I have a model item public class EntryInputModel { ... [Required(ErrorMessage = "Description is required.", AllowEmptyStrings = false)] public virtual string Description { get; set; } } and a controller action public ActionResult Add([Bind(Exclude = "Id")] EntryInputModel newEntry) { if (ModelState.IsValid) { var entry = Mapper.Map<EntryInputModel, Entry>(newEntry); repository.Add(entry); unitOfWork.SaveChanges(); return RedirectToAction("Details", new { id = entry.Id }); } return RedirectToAction("Create"); } When I create an EntryInputModel in a unit test, set the Description property to null and pass it to the action method, I still get ModelState.IsValid == true, even though I have debugged and verified that newEntry.Description == null. Why doesn't this work?

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  • What software development process do you use and how do you implement it?

    - by clyfe
    Post only what you do use not what you would like to use, so we can see what is the most popular in real life. I am interested only in theese issues: Project Model (waterfall, agile...) How are requirements gathered (and stored)? Revision control - what software, what workflow Build automation, what software, where does it fit ? How is the testing done ? How is the documentation done ? How is the quality assurance done ? Please provide short objective answers, don't speak from the books. EXAMPLE: In my company we are a small team of 5 people and we develop webapps using ruby. agile PM cucumber requirements git SCM - Integration Manager Workflow integrity CI rspec automated tests the project lead creats the documentation skeleton then it is filled by the developers ensure quality by peer reviewing code and manual peer-testing

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  • Dynamic data validation in ASP.NET MVC

    - by user252160
    I've recently read about the model validation capabilities of ASP.NET MVC which are all very cool until a certain point. What happens if the application doesn't know the data that it works with because it is all stored in DB and built together at runtime. Just like in Drupal, I'd like to be able to define custom types at runtime, and assign runtime validation rules as well. Obviously, the idea of assigning attributes to well established models is now gone. What else could be done ? I am thinking in terms of rules being stored as JSON objects in the DB fields or something like that.

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  • Stuck with the first record while parsing an XML in Java

    - by Ritwik G
    I am parsing the following XML : <table ID="customer"> <T><C_CUSTKEY>1</C_CUSTKEY><C_NAME>Customer#000000001</C_NAME><C_ADDRESS>IVhzIApeRb ot,c,E</C_ADDRESS><C_NATIONKEY>15</C_NATIONKEY><C_PHONE>25-989-741-2988</C_PHONE><C_ACCTBAL>711.56</C_ACCTBAL><C_MKTSEGMENT>BUILDING</C_MKTSEGMENT><C_COMMENT>regular, regular platelets are fluffily according to the even attainments. blithely iron</C_COMMENT></T> <T><C_CUSTKEY>2</C_CUSTKEY><C_NAME>Customer#000000002</C_NAME><C_ADDRESS>XSTf4,NCwDVaWNe6tEgvwfmRchLXak</C_ADDRESS><C_NATIONKEY>13</C_NATIONKEY><C_PHONE>23-768-687-3665</C_PHONE><C_ACCTBAL>121.65</C_ACCTBAL><C_MKTSEGMENT>AUTOMOBILE</C_MKTSEGMENT><C_COMMENT>furiously special deposits solve slyly. furiously even foxes wake alongside of the furiously ironic ideas. pending</C_COMMENT></T> <T><C_CUSTKEY>3</C_CUSTKEY><C_NAME>Customer#000000003</C_NAME><C_ADDRESS>MG9kdTD2WBHm</C_ADDRESS><C_NATIONKEY>1</C_NATIONKEY><C_PHONE>11-719-748-3364</C_PHONE><C_ACCTBAL>7498.12</C_ACCTBAL><C_MKTSEGMENT>AUTOMOBILE</C_MKTSEGMENT><C_COMMENT>special packages wake. slyly reg</C_COMMENT></T> <T><C_CUSTKEY>4</C_CUSTKEY><C_NAME>Customer#000000004</C_NAME><C_ADDRESS>XxVSJsLAGtn</C_ADDRESS><C_NATIONKEY>4</C_NATIONKEY><C_PHONE>14-128-190-5944</C_PHONE><C_ACCTBAL>2866.83</C_ACCTBAL><C_MKTSEGMENT>MACHINERY</C_MKTSEGMENT><C_COMMENT>slyly final accounts sublate carefully. slyly ironic asymptotes nod across the quickly regular pack</C_COMMENT></T> <T><C_CUSTKEY>5</C_CUSTKEY><C_NAME>Customer#000000005</C_NAME><C_ADDRESS>KvpyuHCplrB84WgAiGV6sYpZq7Tj</C_ADDRESS><C_NATIONKEY>3</C_NATIONKEY><C_PHONE>13-750-942-6364</C_PHONE><C_ACCTBAL>794.47</C_ACCTBAL><C_MKTSEGMENT>HOUSEHOLD</C_MKTSEGMENT><C_COMMENT>blithely final instructions haggle; stealthy sauternes nod; carefully regu</C_COMMENT></T> </table> with the following java code: package xmlparserformining; import java.util.List; import java.util.Iterator; import org.dom4j.Document; import org.dom4j.DocumentException; import org.dom4j.Node; import org.dom4j.io.SAXReader; public class XmlParserForMining { public static Document getDocument( final String xmlFileName ) { Document document = null; SAXReader reader = new SAXReader(); try { document = reader.read( xmlFileName ); } catch (DocumentException e) { e.printStackTrace(); } return document; } public static void main(String[] args) { String xmlFileName = "/home/r/javaCodez/parsing in java/customer.xml"; String xPath = "//table/T/C_ADDRESS"; Document document = getDocument( xmlFileName ); List<Node> nodes = document.selectNodes( xPath ); System.out.println(nodes.size()); for (Node node : nodes) { String customer_address = node.valueOf(xPath); System.out.println( "Customer address: " + customer_address); } } } However, instead of getting all the various customer records, I am getting the following output: 1500 Customer address: IVhzIApeRb ot,c,E Customer address: IVhzIApeRb ot,c,E Customer address: IVhzIApeRb ot,c,E Customer address: IVhzIApeRb ot,c,E Customer address: IVhzIApeRb ot,c,E Customer address: IVhzIApeRb ot,c,E Customer address: IVhzIApeRb ot,c,E Customer address: IVhzIApeRb ot,c,E Customer address: IVhzIApeRb ot,c,E Customer address: IVhzIApeRb ot,c,E Customer address: IVhzIApeRb ot,c,E Customer address: IVhzIApeRb ot,c,E Customer address: IVhzIApeRb ot,c,E Customer address: IVhzIApeRb ot,c,E Customer address: IVhzIApeRb ot,c,E Customer address: IVhzIApeRb ot,c,E Customer address: IVhzIApeRb ot,c,E Customer address: IVhzIApeRb ot,c,E Customer address: IVhzIApeRb ot,c,E Customer address: IVhzIApeRb ot,c,E Customer address: IVhzIApeRb ot,c,E Customer address: IVhzIApeRb ot,c,E Customer address: IVhzIApeRb ot,c,E Customer address: IVhzIApeRb ot,c,E Customer address: IVhzIApeRb ot,c,E and so on .. What is wrong here? Why is it printing only the first record ?

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  • In Django, how to create tables from an SQL file when syncdb is run

    - by Sidney
    Hi, How do I make syncdb execute SQL queries (for table creation) defined by me, rather then generating tables automatically. I'm looking for this solution as some particular models in my app represent SQL-table-views for a legacy-database table. So, I've created their SQL-views in my django-DB like this: CREATE VIEW legacy_series AS SELECT * FROM legacy.series; I have a reverse engineered model that represents the above view/legacytable. But whenever I run syncdb, I have to create all the views first by running sql scripts, otherwise syncdb simply creates tables for them (if a view is not found). How do I make syncdb run the above mentioned SQL?

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  • Combining Two Models in Rails for a Form

    - by matsko
    Hey Guys. I'm very new with rails and I've been building a CMS application backend. All is going well, but I would like to know if this is possible? Basically I have two models: @page { id, name, number } @extended_page { id, page_id, description, image } The idea is that there are bunch of pages but NOT ALL pages have extended_content. In the event that there is a page with extended content then I want to be able to have a form that allows for editing both of them. In the controller: @page = Page.find(params[:id]) @extended= Extended.find(:first, :conditions = ["page_id = ?",@page.id]) @combined = ... #merge the two somehow So in the view: <%- form_for @combined do |f| % <%= f.label :name % <%= f.text_field :name % ... <%= f.label :description % <%= f.text_field :description % <%- end This way in the controller, there only has to be one model that will be updated (which will update to both). Is this possible?

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  • How do I do a grouping by year?

    - by kibyegn
    I have a books model with a date type column named publish_date. On my views I'm iterating through the books and I want to group the books by year such that I have a heading for every year and books that were published on that year to be listed below the year heading. So by starting with "2010" all books published on 2010 would be listed, then another heading "2009" with all books published in 2009 listed below it and so forth. <% @all_books.each do |book| %> <%=link_to book.title + ", (PDF, " + get_file_size(book.size) + ")" %> <% end %> By doing a book.publish_date.strftime("%Y") I am able to get the year but I do not know how to group the entries by year. Any help on this would be appreciated.

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  • Does Ruby on Rails "has_many" array provide data on a "need to know" basis?

    - by Jian Lin
    On Ruby on Rails, say, if the Actor model object is Tom Hanks, and the "has_many" fans is 20,000 Fan objects, then actor.fans gives an Array with 20,000 elements. Probably, the elements are not pre-populated with values? Otherwise, getting each Actor object from the DB can be extremely time consuming. So it is on a "need to know" basis? So does it pull data when I access actor.fans[500], and pull data when I access actor.fans[0]? If it jumps from each record to record, then it won't be able to optimize performance by doing sequential read, which can be faster on the hard disk because those records could be in the nearby sector / platter layer -- for example, if the program touches 2 random elements, then it will be faster just to read those 2 records, but what if it touches all elements in random order, then it may be faster just to read all records in a sequential way, and then process the random elements. But how will RoR know whether I am doing only a few random elements or all elements in random?

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  • Assigning document.getElementById to another function

    - by Andreas Grech
    I am trying to do the following in JavaScript: var gete = document.getElementById; But I am getting the following error (From FireBug's Console): uncaught exception: [Exception... "Illegal operation on WrappedNative prototype object" nsresult: "0x8057000c (NS_ERROR_XPC_BAD_OP_ON_WN_PROTO)" location: "JS frame :: http://localhost:8080/im_ass1/ :: anonymous :: line 15" data: no] Now obviously I can wrap the function as follows: var gete = function (id) { return document.getElementById(id); }; But what is the reason I'm getting the above exception when assigning the function to another name?

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  • MVC2 IModelBinder and parsing a string to an object - How do I do it?

    - by burnt_hand
    I have an object called Time public class Time{ public int Hour {get;set;} public int Minute {get;set;} public static Time Parse(string timeString){ //reads the ToString()'s previous output and returns a Time object } override protected string ToString(){ //puts out something like 14:50 (as in 2:50PM) } } So what I want is for the automatic model binding on the Edit or Create action to set this Time instance up from a string (i.e. feed the Parse method with the string and return the result). The reason I am doing this is that I will have a DropDownList with selectable times. The value of each option will be the parser readable string. Can anyone provide an example BindModel method from the IModelBinder interface?

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  • ibatis domain modelling

    - by josh
    Hi team; I am working on the domain model for a project. I have a class named user that has a class named UserType as one of the properties. I know when i want to select all users, i will use joins to pick up all corresponding usertypes. How do i do inserts? Do i have to write a handler for userType? or can i do something like INSERT INTO users(... usertype_id ...) VALUES(... #{usertype.usertype_id}...) Please help; I have spent the whole day trying to figure this out. Am using ibatis 3.0 and am new to ibatis. Regards Josh

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  • Zend without Database

    - by dbemerlin
    Hi, i googled for an hour now but maybe my Google-Fu is just too weak, i couldn't find a solution. I want to create an application that queries a service via JSON requests (all data and backend/business logic is stored in the service). With plain PHP it's simple enough since i just make a curl request, json_decode the result and get what i need. This already works quite well. A request might look like this: Call http://service-host/userlist with body: {"logintoken": "123456-1234-5678-901234"} Get Result: { "status": "Ok", "userlist":[ {"name": "foo", "id": 1}, {"name": "bar", "id": 2} ] } Now we want to get that into the Zend Framework since it's a hobby project and we want to learn about Zend. The problem is that all information i could find use a Database. Is there even a way to create a Zend Project that does not use a Database? And how can i write a model that represents the actions instead of objects and object-relations?

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  • Typed DefaultListModel to avoid casting

    - by Thomas R.
    Is there a way in java to have a ListModel that only accepts a certain type? What I'm looking for is something like DefaultListModel<String> oder TypedListModel<String>, because the DefaultListModel only implements addElement(Object obj) and get(int index) which returns Object of course. That way I always have to cast from Object to e.g. String and there is no guarantee that there are only strings in my model, even though I'd like to enforce that. Is this a flaw or am I using list models the wrong way?

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  • Controlling CodeModel's code output formatting: putting lines between namespace declarations

    - by devoured elysium
    I'm making some experiments with Visual Studio's CodeModel. I tried creating a file with two namespaces in there through VS's Code Model: CodeModel codeModel = projItem.ContainingProject.CodeModel; codeModel.AddNamespace("Namespaces.FirstNamespace", "namespacestest.cs"); codeModel.AddNamespace("Namespaces.SecondNamespace", "namespacestest.cs"); the output of such code is: //file namespacestest.cs namespace Namespaces.FirstNamespace { } namespace Namespaces.SecondNamespace { } Which is almost what I'm looking for. The only catch here is that I'd like to control the spacing: having at least one line between the first and the second namespace. Does by chance anyone know of a way of achieving this? This is what I want: //file namespacestest.cs namespace Namespaces.FirstNamespace { } namespace Namespaces.SecondNamespace { } Thanks

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  • Django complex queries

    - by Josh K
    I need to craft a filter for an object that checks date ranges. Right now I'm performing a very inefficient loop which checks all the objects. I would like to simplify this to a database call. The logic is you have a start and an end date objects. I need to check if the start OR the end is within the range of an appointment. if (start >= appointment.start && start < appointment.end) || (end > appointment.start && end <= appointment.end) I could do this in SQL, but I'm not as familiar with the Django model structure for more complex queries.

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