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• Calling one DAO from another DAO?

  - by es11

  Can this ever make sense? Say I need to fetch an object from the DB which has a relation to another object (represented by a foreign key in the DB, and by a composition in my domain object). If in my first DAO I fetch the data for object 1, then call the dao for object 2, and finally (from within the first DAO, call the setter in object 1 and give it the previously fetched object 2). I know I could do a join instead, but it just seems more logical to me to decouple the functionality (which is why I am skeptical about calling one dao from another). Or should I move some of the logic to the service layer? Thanks Update: I think I solved the problem with help from the answers: all I needed to do was add the following to my mapping of Object 1: <one-to-one name="Object2" fetch="join" class="com...Object2"></one-to-one> I didn't have to change anything else. Thanks for the help!

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• Deploying Asp.Net MVC 2 /C# 4.0 application on IIS 6

  - by Mose

  Hi, I got a problem migrating from VS.Net 2008 / MVC 1 to VS.NET 2010 (+C# 4.0) / MVC 2 The web.config has been updated, the site runs well in Cassini, but my problem now is deploying on IIS 6. I updated the web site to run using ASP.Net 4, but whatever URL I try, I always have a 404 error. It's as if the routing was not taken into account (yes, the wildcard mapping has been done). I do not understand this mess and could not google anything interesting... Thanks for your suggestions ! O.

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• fluent nhibernate m-to-m with column

  - by csetzkorn

  Hi, I am used to hbm files and started using fluent nhibernate recently. Creating an m-to-m relationship between two entities A and B is quite simple In A I create: public virtual IList Bs { get; set; } and then I use: mapping.HasManyToMany(x = x.Bs); That’s it and I can do: A a = new A(); a.Bs.Add(b); My problem is that I would like to have an additional column in my dedicated m-to-m database table which holds the two foreign keys. What is the simplest way to achieve this in FNH? Would I have to create a dedicated entity for the m-to-m realtionship or is there a simpler solution? Thanks. Best wishes, Christian

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• XML::LibXML: How to write a xpath with qualified name?

  - by sid_com

  I've found this on http://www.perlmonks.org/?node_id=606909 looking by qualified name ... In this case you can call findnodes method on any node, you don't need the XML::LibXML::XPathContext with its prefix = namespace mapping: $doc-findnodes('///info/fooTransaction/transactionDetail/[name() = "histFile:transactionSummary"]/*'); In which way I have to edit my xpath to get my script working without XPathContext? #!/usr/bin/env perl use warnings; use strict; use 5.012; use XML::LibXML; my $parser = XML::LibXML->new; $parser->recover_silently( 1 ); my $doc = $parser->parse_file( 'http://www.heise.de/' ); my $xc = XML::LibXML::XPathContext->new( $doc->getDocumentElement ); $xc->registerNs( 'xmlns', 'http://www.w3.org/1999/xhtml' ); my $nodes = $xc->findnodes( '//xmlns:h2/xmlns:a' ); for my $node ( $nodes->get_nodelist ) { say $_->getName, '=', $_->getValue for $node->attributes; }

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• navigate through pages in mvvm in silverlight 4

  - by Archie

  Hello, I have been searching on how to navigate through the pages in silverlight 4 (navigation application) when I have implemented MVVM pattern. But nothing I found satisfied me. I have a main page which has frame in it. In that frame I load home page which does simple URI mapping. But now I want to go to New Page on button's click event. Can anyone please give me the solution? Its urgent. Thanks.

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• RegEx for MetaMap in Java

  - by Christian

  MetaMap files have following lines: mappings([map(-1000,[ev(-1000,'C0018017','Objective','Goals',[objective],[inpr],[[[1,1],[1,1],0]],yes,no)])]). The format is explained as mappings( [map(negated overall score for this mapping, [ev(negated candidate score,'UMLS concept ID','UMLS concept','preferred name for concept - may or may not be different', [matched word or words lowercased that this candidate matches in the phrase - comma separated list], [semantic type(s) - comma separated list], [match map list - see below],candidate involved with head of phrase - yes or no, is this an overmatch - yes or no ) ] ) ] ). I want to run a RegEx query in java that gives me the Strings 'UMLS concept ID', semantic type and match map list. Is RegEx the right tool or what is the most efficent way to accomplish this in Java?

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• How to I create an HQL query to return objects in a many to many relationship?

  - by Dave

  Hi there. I have an application that includes 2 classes Club and Article. These are mapped in Hibernate as a many to many relationship. As a result, hibernate has created a table called CLUB_ARTICLE which it uses to manage the many to many relation ship. The CLUB and ARTILCE tables have no direct reference to each other and the mapping is only represented in the CLUB_ARTICLE table. I need to create an HQL query that returns a list of articles for a particlular club. So I need to supply the club id and get back a list of Article objects that belong to it. For some reason, I just can't work out how to do this. Any help would be very much appriciated! Thanks.

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• AutoMapper with c# 2.0 syntax

  - by Morri

  I'm trying to create a custom mapping with AutoMapper, but I can't use 3.0 syntax with lambdas. How would one convert this 3.0 code into 2.0 ? Mapper.CreateMap<MyClass, MyDto>() .ForMember(dest => dest.Name, opt => opt.MapFrom(src => src.CompanyName)) Edit: Since there was no better solution, we are now using vs2008 on one workstation to make these mappings and build a dll. I hope it won't be long until we upgrade to vs2010.

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• Nhibernate Criteria Ignore Child Collection

  - by CocoB

  I have a simple one to many association in my model. The parent class has a collection of children. In the mapping files, the association is a one to many, eager-loaded, using fetchmode.join. This works fine, but how can I write a criteria query but NOT trigger the loading of the child collection? In other words, I want to query the parent and not have it generate the join in the resulting sql. I tried setting the fetch mode to lazy, but in that case Nhibernate generates two separate queries. I don't want the table for child queried at all.

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• EF 4 - associations with keys that dont match

  - by Steve Ward

  We're using POCOs and have 2 entities: Item and ItemContact. There are 1 or more contacts per item. Item has as a primary key: ItemID LanguageCode ItemContact has: ItemID ContactID We cant add an association with a referrential constraint as they have differing keys. There isnt a strict primary / foreign key as languageCode isnt in ItemContact and ContactID isnt in Item. How can we go about mapping this with an association for contacts for an item if there isnt a direct link but I still want to see the contacts for an item? One of the entities originates in a database view so it is not possible to add foreign keys to the database Thanks Stephen Ward

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• Asp.net 4.0 site fails because no handler mapped with Classic appPool

  - by AndyV

  When I create a Asp.net app and flip the appPool to "ASP.NET v4.0 Classic" it fails with the following error: HTTP Error 404.17 - Not Found The requested content appears to be script and will not be served by the static file handler. After some searching it seems to be the handler not mapping correctly for the Classic mode but I can't find out where or how to fix that. I have the full .Net 4.0 install with VS2010 and the app works fine if I flip the appPool to Integrated. Also, it's a Windows 7 machine (I'm having the same problem on a Vista box). Thanks in advance. Andy

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• How to extract hhp file from a chm file

  - by Sam

  Hi, I have an A.chm file for my windows application which runs as expected. When I decompile it using HTML workshop I get set of html files, .hhc file, .hhk file. When I compile another file B.chm from these extracted files without changing any of the files.((I want to add more html contents to this file but looks like I am losing some information after decompiling)) The output file I get is 72K where as the original file was 75K. B.chm's contents look all file when viewed in the chm viewer but the behavior is lost when when used with the application. After reading around I found that if .hhp can be extracted from a .chm file then it can be re-constructed as it is without losing any mapping or aliases. Is that true? How can I extract .hhp file from a .chm file? Thanks, Sam

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• Ways to generate database full structure based on Fluent NHibernate mappings

  - by Mendy

  I'm looking for ways to generate the application database full structure based on the NHibernate mapping data. The idea is to give the user an option to supply a database-connection string and then to build their a database with the structure that the application needs. The database need to independent - it means that it needs to work with any database that are supported by NHibernate. By full structure I mean that I want to generate also the index fields, and the relationship between tables. Is their few ways to accomplish this with NHibernate? Is so, what are they?

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• AutoMapper How to map nested object from an ObjectId

  - by RayMartinsHair

  I am trying to map the ReferralContract.AssessmentId property to Referral.Assessment.Id The below code works but I am sure that there is a cleaner way to do.... Please tell me this is so ;-) // Destination classes public class Referral { public Referral() { Assessment = new Assessment(); } public int Id { get; set; } public Assessment Assessment { get; set; } } public class Assessment { public int Id { get; set; } } // Source Class public class ReferralContract { public int Id { get; set; } public int AssessmentId { get; set; } } The Automapper mapping I am using is Mapper.CreateMap<ReferralContract, Referral>() .ForMember(x => x.Assessment, opt => opt.MapFrom(scr => new Assessment { Id = scr.AssessmentId }));

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• Fluent Nhibernate Automap convention for not-null field

  - by user215015

  Hi, Could some one help, how would I instruct automap to have not-null for a cloumn? public class Paper : Entity { public Paper() { } [DomainSignature] [NotNull, NotEmpty] public virtual string ReferenceNumber { get; set; } [NotNull] public virtual Int32 SessionWeek { get; set; } } But I am getting the following: <column name="SessionWeek"/> I know it can be done using fluent-map. but i would like to know it in auto-mapping way. Many thanks. Regards Robie

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• Excel Object in asp.net

  - by Xyz

  Hi I have a serious issue. I am using excel object for opening the excel file it works fine i my PC. when i make application as a website and running the page and uploading it gives the error "'C:\Documents and Settings\Administrator\Desktop\Work\SABRE MSO Mapping Request Template.xlsx' could not be found. Check the spelling of the file name, and verify that the file location is correct. If you are trying to open the file from your list of most recently used files, make sure that the file has not been renamed, moved, or deleted. ". I think it taking server path...but i want to open client excel file before saving the file to the server. Plz help.

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• Using Mate's RemoteObjectInvoker with C# classes

  - by FigBug

  I'm using the Mate framework for Flex and communicating with a server running C#. I'm having trouble mapping C# classes to ActopnScript classes. I've got it working fine for simple classes and built in datatypes. If I have a C# method in my API that returns a API.Foo.Result what name do I use for my RemoteClass alias? Do I need to make a separate ActionScript class for each variation of the API.Foo.Result? How do I call C# method that takes a class as a parameter? Making an ActionScript class with members with the same names doesn't seem to work. What is the best way to handle C# classes that contain arrays of objects? The seem to get converted to ArrayCollections of Object. Is there a way to get them converted to an ArrayCollection of my specific class?

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• Cstom handler on IIS 7.5 doesn't work

  - by Amit

  Hi, I am new to IIS 7.5. I have an application in asp.net 2.0, which has its own custom URL rewriting mechanism. All the requests on the browser with .htm will be mapped to .aspx. It works fine on IIS 6, but somehow I could not get it working on IIS 7.5. On IIS 6, I go to Application PropertiesConfigurationMappings and add a new extension .htm with the executable as aspnet_isapi.dll On IIS 7.5 i added a handler mapping, with path as .htm and executable as aspnet_ispai.dll But the request does not even come to global.asax. If i try the URL with .aspx extension, pages load properly. Any idea how to set up custom mappings in iis 7.5?

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• Is JAX-RS suitable as a MVC framework?

  - by deamon

  JAX-RS has some MVC support, but I wonder if JAX-RS is really a good choice to build web application for human use. If a user enters wrong or incomplete information in a form, it should be displayed again like with Grails or Wicket. Is there a comfortable way to do this with JAX-RS? As far as I know the URI mapping doesn't work correctly, if not all required parameters are given or there are type conversion problems (with Date for example). Is that correct? Is there support for internationalized templates?

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• SQL Injection with Plain-Vanilla NHibernate

  - by James D

  Hello, Plain-vanilla NHibernate setup, eg, no fluent NHibernate, no HQL, nothing except domain objects and NHibernate mapping files. I load objects via: _lightSabers = session.CreateCriteria(typeof(LightSaber)).List<LightSaber>(); I apply raw user input directly to one property on the "LightSaber" class: myLightSaber.NameTag = "Raw malicious text from user"; I then save the LightSaber: session.SaveOrUpdate(myLightSaber); Everything I've seen says that yes, under this situation you are immune to SQL injection, because of the way NHibernate parameterizes and escapes the queries under the hood. However, I'm also a relative NHibernate beginner so I wanted to double-check. *waves hand* these aren't the droids you're looking for. Thanks!

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• What is the iPad user agent?

  - by Yoric

  Now that the iPad craze is officially open, it's time to think websites also for the iPad. From what I gather, the iPad is using iPhone OS, but with a different screen resolution from the iPhone/iPod touch. So suddenly, the assumption that iPhone OS = iPhone screen resolution becomes false. Sounds like many sites may have to revise their user-agent - css mapping. So, can anyone with access to the iPad or the iPad SDK give us the user-agent string? Thanks in advance.

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• How to temporarily disable read-only 2nd level cache hibernate strategy in Grails ?

  - by fabien7474

  In my grails application, some of my domain classes will never be changed by Users. However, some maintenance work is sometimes necessary, and administrator should be able to create/edit few instances from time to time (let's say twice a year). I would like to set a read-only 2nd level cache strategy for these domain classes (static mapping = { cache usage: 'read-only' } ) AND I would like to be able to 'disable' (in very particular situations) the read-only strategy in order to udate some instances via Grails scaffolding edit view. Is it possible? What do you advise me to do? EDIT: The solution I am implementing is a mix of Pascal and Burt answers (see comments). Both answers are great and helpful. So I got a dilemna for choosing the accepted answer! Anyway, thank you.

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• DataTable to Object collection

  - by Kenneth Cochran

  I'm working on a data import feature and I've been able to load an excel sheet into a DataTable using Ado.NET with the MSJet db engine. I created a simple one-to-one mapping dialog, in which the user drags column headings from their spreadsheet to a list of object properties. What's stumping me is how to turn each DataRow into a business object. Is there an easy way to do this? If there is a better way than using a DataTable as a middleman I'm open to suggestion? I use NHibernate extensively through out the rest of my program but I couldn't find any attempts to map to an excel spreadsheet. I went with a DataTable because the technique was well documented.

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• Is there a standard Java utility to parse XSD files at runtime?

  - by Andrew

  I've been looking around for a way to programmatically parse XSD files to generate an XML mapping so that I can take any XSD file and create a parser that will parse any XML file that conforms to it, and my google-fu has been coming up short. XSOM looks promising, as it will parse an XSD file and make all its attributes available in a straight forward way. Are there any other options or standard libraries available that will produce an XML file parser from an XSD file? [Conclusion] Thanks everyone for your responses, they were a real help. I was able to write implementations using JAXP, Eclipses EMF and in XSOM that all worked as desired. JAXP was very straight forward and easy to learn and do. EMF was actually a pain to get going properly, there were so many jars that had to be included for it to work standalone that I would not recommend it. XSOM was even simpler than the JAXP implementation, so I went with it in the end.

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• Hibernate: @UniqueConstraint with @ManyToOne field???

  - by Misha Koshelev

  Dear All: Using the following code: @Entity @Table(uniqueConstraints=[@UniqueConstraint(columnNames=["account","name"])]) class Friend { @Id @GeneratedValue(strategy=GenerationType.AUTO) public Long id @ManyToOne public Account account public String href public String name } I get the following error: org.hibernate.AnnotationException: Unable to create unique key constraint (account, name) on table Friend: account not found It seems this has to do with the @ManyToOne constraint, which I imagine actually creates a separate UniqueConstraint??? In any case, if I take this out, there is no complaint about the UniqueConstraint, but there is another error which makes me believe it must be left in. org.hibernate.MappingException: Could not determine type for: com.mksoft.fbautomate.domain.Account, at table: Friend, for columns: [org.hibernate.mapping.Column(account)] Any hints how I can create such a desired constraint (i.e., that each combination of account and name occurs only once???) Thank you! Misha

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