c# - NHibernate cascade setting on child -

-

i try learn nhibernate first time. i'm using book: nhibernate2

there don't understand. on "contact.hbm.xml" mapping file there defined mapping orderheader table. orderheader table has 2 foreign keys contact table: "billtocontact_id" , "shiptocontact_id".

<bag name="billtoorderheaders" inverse="true" lazy="true"           cascade="all-delete-orphan">       <key column="billtocontact_id"/>       <one-to-many class="ordering.data.orderheader, ordering.data"/>     </bag>     <bag name="shiptoorderheaders" inverse="true" lazy="true"          cascade="all-delete-orphan">       <key column="shiptocontact_id"/>       <one-to-many class="ordering.data.orderheader, ordering.data"/>     </bag>

in mapping have cascade="all-delete-orphan". aa understand, necessary set on primary table.

then mapping on orderheader table is:

<many-to-one name="billtocontact" class="ordering.data.contact, ordering.data">       <column name="billtocontact_id" not-null="false"/>     </many-to-one>     <many-to-one name="shiptocontact" class="ordering.data.contact, ordering.data">       <column name="shiptocontact_id" not-null="false"/>     </many-to-one>

when try save new data:

        isessionfactory sessionfactory = cfg.buildsessionfactory();         isession session = sessionfactory.opensession();         itransaction tx = session.begintransaction();         contact contact = new contact("joe", "jones", "joeyj@waywardone.com");          address address = new address("2000 e. captive way", null, "madville", "ma", "78701");         address.contact = contact;         contact.addresses = new list<address>();         contact.addresses.add(address);          orderheader header = new orderheader();         header.number = "0000001";         header.orderdate = datetime.now;         header.billtocontact = contact;         header.billtoaddress = address;         header.shiptocontact = contact;         header.shiptoaddress = address;         session.saveorupdate(header);         tx.commit();

i error: object references unsaved transient instance - save transient instance before flushing. type: ordering.data.contact, entity: ordering.data.contact

then have defined cascade inside child table mapping:

<many-to-one name="billtocontact" class="ordering.data.contact, ordering.data" cascade="all-delete-orphan">       <column name="billtocontact_id" not-null="false"/>     </many-to-one>     <many-to-one name="shiptocontact" class="ordering.data.contact, ordering.data" >       <column name="shiptocontact_id" not-null="false"/>     </many-to-one>

i don't understand this. if add cascade="all-delete-orphan" billtocontact mapping or shiptocontact mapping, works. doesn't matter, 1 of them must have setting.

as read if cascade define on parent, doesn't have defined on child. if must on child, logically on both mapping not on 1 of them(doesn't matter one).

can explain?

i guess problem of order. if tries store address first, there no cascade on address.contact.

  • either cascade insert-update address.contact,
  • or explicitly add contact before stored.

Comments

Post a Comment

Popular posts from this blog

ios - RestKit 0.20 — CoreData: error: Failed to call designated initializer on NSManagedObject class (again) -

-
this error has shown on many times, seems. prominent answer issue seems restkit 0.20 — coredata: error: failed call designated initializer on nsmanagedobject class however, solution posted doesn't work me. let's start beginning: i want upload file server. want parse response make sure uploaded. if not, try again later. model has boolean variable called nsnumber *senttoserver purpose (in coredata, bool saved nsnumber ) . because don't know whether sending going successful, save entity coredata model first before sending via restkit. when post request successful, server returns json string this: {"id":14,"created":true} notice that, of course, id not set on coredata model yet, both id , created new informations model. here's model: @interface recording : nsmanagedobject @property (nonatomic, retain) nsstring * audiofilepath; @property (nonatomic, retain) nsdate * createdat; @property (nonatomic, retain) nsstring * deviceid; @
Read more

laravel - PDOException in Connector.php line 55: SQLSTATE[HY000] [1045] Access denied for user 'root'@'localhost' (using password: YES) -

-
my .env: app_env=local app_debug=true app_key=myappkey app_url=http://localhost db_connection=mysql db_host=localhost db_port=3306 db_database=gestiontaller db_username=root db_password='root' cache_driver=file session_driver=file queue_driver=sync redis_host=127.0.0.1 redis_password=null redis_port=6379 mail_driver=smtp mail_host=mailtrap.io mail_port=2525 mail_username=null mail_password=null mail_encryption=null i've tried password ", ' , without, restarting server every time. i've tried changing localhost 172.0.0.1. yes, password correct, running mysql -u root -p introducing password root in prompt can go mysql. users table: +------------------+-----------+ | user | host | +------------------+-----------+ | debian-sys-maint | localhost | | mysql.sys | localhost | | root | localhost | | root1 | localhost | +------------------+-----------+ i've added homestead.yaml this: database_port: 3306
Read more

java - Digest auth with Spring Security using javaconfig -

-
so i'm trying create digest authentication spring following documentation trying translate xml "requirements" in java requirements. let's have xml in docs: <bean id="digestfilter" class= "org.springframework.security.web.authentication.www.digestauthenticationfilter"> <property name="userdetailsservice" ref="jdbcdaoimpl"/> <property name="authenticationentrypoint" ref="digestentrypoint"/> <property name="usercache" ref="usercache"/> </bean> <bean id="digestentrypoint" class= "org.springframework.security.web.authentication.www.digestauthenticationentrypoint"> <property name="realmname" value="contacts realm via digest authentication"/> <property name="key" value="acegi"/> <property name="noncevalidityseconds" value="10"/> </b
Read more