Also, Conversation per Business Transaction (CpBT) and Identity ID generators don't play nice together. In general, you should avoid Identity whenever possible. It will NOT work with CpBT under any circumstances.
Thanks, Jason On Sun, Dec 5, 2010 at 5:39 AM, Fabio Maulo <[email protected]> wrote: > LOL.. > well... in some place you are creating a new User then you are > assigning it a Title. > That Title should be a persistent entity coming from a NHibernate > query, if the title should exists. > Where you are assigning a new Title you have to persist it > (session.Save) before persist the User or you have to specify the > cascading action in the mapping (cascade="save-update,persist") > > -- > Fabio Maulo > > > El 05/12/2010, a las 05:53, megaman <[email protected]> > escribió: > > > here is the classes: > > > > public class User > > { > > private int Key; > > private string name; > > private Title title; > > > > public Spender() > > { > > > > name = string.Empty; > > title = null; > > } > > > > public Spender(Spender spender) > > { > > key = spender.Key > > name = spender.Name; > > title = spender.Title; > > } > > > > public virtual int Key > > { > > get { return key; } > > set { name = key; } > > } > > > > public virtual string Name > > { > > get { return name; } > > set { name = value; } > > } > > > > public virtual Title Title > > { > > get { return title; } > > set { title = value; } > > } > > } > > > > and title class is: > > pubic class Title > > { > > private int key; > > private string name; > > > > public Title() > > { > > name = ""; > > } > > > > public Title( Title title ) { > > key = title.Key; > > description = title.Description; > > } > > > > public virtual int Key > > { > > get { return key; } > > set { name = value; } > > } > > > > public virtual Title Title > > { > > get { return title; } > > set { title = value; } > > } > > > > > > } > > > > The way how i save that is like defined in the book, i mean > > i have the class UserModel; > > > > [PersistenceConversational( > > MethodsIncludeMode = MethodsIncludeMode.Implicit)] > > public class UserModel : IUserModel > > { > > private readonly IDao<User> _userDAO; > > > > public virtual void Save(User user) > > { > > _userDAO.Save(user); > > } > > > > > > } > > The implementation of DAO and DaoImp ist just like this found in the > > book in chapter 3 pages (94,95,96) > > Thanks again Fabio > > On 5 Dez., 01:18, Fabio Maulo <[email protected]> wrote: > >> Can we see your classes and what you are doing to persist a User ? > >> > >> -- > >> Fabio Maulo > >> > >> El 04/12/2010, a las 20:48, megaman <[email protected]> > >> escribió: > >> > >> yes: > >> User mapping-File: > >> <class name="Spender" table="user" lazy="false" > > >> <id name="Key" column="user_id" type="Int32" > > >> <generator class="identity" /> > >> </id> > >> <many-to-one > >> name="Title" > >> column="TITLE_ID" > >> class="Title" > >> not-found="ignore" /> > >> </class> > >> > >> Title mapping-File: > >> <class name="Title" table="TITLE"> > >> <id name="Key" column="TITLE_ID" type="Int32" > > >> <generator class="identity" /> > >> </id> > >> > >> <property name="Name" type="String" > > >> <column name="DESCRIPTION" /> > >> </property> > >> </class> > >> > >> On 5 Dez., 00:21, Fabio Maulo <[email protected]> wrote: > >> > >> advise: switch your mind. > >> > >> When you are working with a tool as NHibernate you have to talk about > >> > >> entities, components (aka valueObjects), with properties and relations > >> > >> between classes. > >> > >> Can we see your classes and what you are doing to persist a User ? > >> > >> On Sat, Dec 4, 2010 at 6:32 PM, megaman < > [email protected] > >> > >>> wrote: > >> > >> Hi Jason, > >> > >> glad to hear from you and thank you for the book, great tips > >> > >> there ;-). > >> > >> So the problem is why nhibernate try to update the title table. This > >> > >> is an unidirectional many-one relationship. > >> > >> I just wanna update the table user, i mean the entity user has a > >> > >> reference to the entity title thats clear but in the db the table > >> > >> user > >> > >> has only the fk titleId. > >> > >> Please i need you help and thanks again. > >> > >> On 4 Dez., 21:46, Jason Dentler <[email protected]> wrote: > >> > >> The instructions in the exception message are clear. Title is transient, > >> > >> and > >> > >> it is referenced in the graph of objects to be saved. You must > explicitly > >> > >> save the title before flushing -or- use a cascade option that will do > >> > >> this > >> > >> for you automatically. > >> > >> Thanks, > >> > >> Jason > >> > >> On Sat, Dec 4, 2010 at 10:56 AM, megaman < > >> > >> [email protected]>wrote: > >> > >> hi everyone, > >> > >> i have already set the cascade to none but when i save the user , i > >> > >> always get the exception object references an unsaved transient > >> > >> instance - save the transient instance before flushing. maybe i have > >> > >> to disable the auto dirty checking option? i am using the cbpt pattern > >> > >> to deal with multiple sessions management. > >> > >> Guys i need some help here. > >> > >> Thanks in advance > >> > >> On 4 Dez., 17:53, megaman <[email protected]> wrote: > >> > >> hi everyone, > >> > >> i implemented the tip of the book "nhibernate 3 cookbook" > >> > >> concerning "CbpT" pattern. In my modell i have an unidirectional > >> > >> many- > >> > >> to-one association in the child. Here is the example: > >> > >> Title > >> > >> ----- > >> > >> TitleId > >> > >> Description > >> > >> User > >> > >> ----- > >> > >> UserId > >> > >> TitleId > >> > >> The class user has a reference to the object Title because i want to > >> > >> display in my gui the description. So user has a unidirectional > >> > >> many- > >> > >> to-one association with the table Title. > >> > >> if i save the User say Session.save( User ) and ten call SaveAll() > >> > >> which flush the session, i get the exception "save transient entity > >> > >> Title" and dont get that because the cascade option is set to none. > >> > >> The definition of this association in the user mapping file is: > >> > >> many-to-one > >> > >> name="Title" > >> > >> column="TitleId" > >> > >> class="Title" > >> > >> cascade="none" > >> > >> not-found="ignore" > >> > >> Thanks in advance > >> > >> -- > >> > >> You received this message because you are subscribed to the Google > >> > >> Groups > >> > >> "nhusers" group. > >> > >> To post to this group, send email to [email protected]. > >> > >> To unsubscribe from this group, send email to > >> > >> [email protected]<nhusers%[email protected]> > <nhusers%[email protected]<nhusers%[email protected]> > <nhusers%[email protected]<nhusers%[email protected]> > > > >> > >> > >> > >> <nhusers%[email protected]<nhusers%[email protected]> > <nhusers%[email protected]<nhusers%[email protected]> > > > >> <nhusers%[email protected]<nhusers%[email protected]> > <nhusers%[email protected]<nhusers%[email protected]> > > > >> > >> > >> > >> . > >> > >> For more options, visit this group at > >> > >> http://groups.google.com/group/nhusers?hl=en. > >> > >> -- > >> > >> You received this message because you are subscribed to the Google > Groups > >> > >> "nhusers" group. > >> > >> To post to this group, send email to [email protected]. > >> > >> To unsubscribe from this group, send email to > >> > >> [email protected]<nhusers%[email protected]> > <nhusers%[email protected]<nhusers%[email protected]> > <nhusers%[email protected]<nhusers%[email protected]> > > > >> > >> > >> > >> . > >> > >> For more options, visit this group at > >> > >> http://groups.google.com/group/nhusers?hl=en. > >> > >> -- > >> > >> Fabio Maulo > >> > >> -- > >> You received this message because you are subscribed to the Google > Groups > >> "nhusers" group. > >> To post to this group, send email to [email protected]. > >> To unsubscribe from this group, send email to > >> [email protected]<nhusers%[email protected]> > . > >> For more options, visit this group athttp:// > groups.google.com/group/nhusers?hl=en. > > > > -- > > You received this message because you are subscribed to the Google Groups > "nhusers" group. > > To post to this group, send email to [email protected]. > > To unsubscribe from this group, send email to > [email protected]<nhusers%[email protected]> > . > > For more options, visit this group at > http://groups.google.com/group/nhusers?hl=en. > > > > -- > You received this message because you are subscribed to the Google Groups > "nhusers" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]<nhusers%[email protected]> > . > For more options, visit this group at > http://groups.google.com/group/nhusers?hl=en. > > -- You received this message because you are subscribed to the Google Groups "nhusers" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/nhusers?hl=en.
