grails - GORM abstract domain class -

-

i have 2 abstract grails domain classes like

abstract class {    static hasmany = [ b : b ]    static mapping = {      tableperhierarchy false    } }  class achild extends { }  abstract class b {    static belongsto =    static mapping = {      tableperhierarchy false    } }  class bchild extends b { }

i have code does

a = new achild() a.b << new bchild() a.save(flush:true)

this works expected

now, when try do

b.delete(flush:true)

this fails because of referential integrity violation in join table created between a/b. looks first query gorm part of delete delete b table, not join table, , join has reference b table id, causes violation.

delete b id=? , version=?

the reason keep a , b in domain folder can things a.list(), moving out src/groovy last option.

i think bug in gorm abstract classes. have opened issue https://github.com/grails/grails-core/issues/593


Comments

Post a Comment

Popular posts from this blog

How to run C# code using mono without Xamarin in Android? -

-
i want create program uses mono runtime run c# code (binary not application). i copied libmono.so unity app , i'm write code using documentation: http://www.mono-project.com/docs/advanced/embedding/ and it's working have problems references can access classes mscorlib.dll , have problems system.reflection.assembly class throwing exception, when print console see: system.missingmethodexception: method not found: 'system.reflection.assembly.op_inequality' can fix it? can use mono runtime in c binary on android? ps. i'm using android tests. edit: found solution loading libraries, need set environment variable mono_path libraries path. but have still problems assembly class. the system.missingmethodexception error have seems .net profile mismatch error, 1 explained here . can use mono runtime in c binary on android? yes, using ndk guess. there alternatives can use instead of rolling own, such xmadevlab .
Read more

c# - SharpSsh Command Execution -

-
Image
i trying create ssh client using c#. using tamir.sharpssh library. having issues sending command , getting appropriate response server. the way have been testing sending on ls command, followed cd.. command, followed ls command again -- see whether or not cd.. command being executed properly. however, there no difference between first ls command , second ls command. not entirely sure doing wrong. perhaps using wrong ssh type. have provided code , output getting. have added output expect. using tamir.sharpssh; namespace sshnetexample { class program { static void main(string[] args) { sshexec ssh = null; try { console.write("-connecting..."); ssh = new sshexec(host, username, password); ssh.connect(); console.writeline("ok ({0}/{1})", ssh.cipher, ssh.mac); console.writeline("server version={0}, client versio...
Read more

python - Specify path of savefig with pylab or matplotlib -

-
i struggling on how find correct way specify save path (or repository) when calling function savefig in matplotlib or pylab. i tried several syntaxes, everytime python console returns : filenotfounderror: [errno 2] no such file or directory: '../mydocs/resource/frames/myimage.png' currently, have written following : pylab.savefig('../mydocs/resource/frames/myimage.png') does know how it? thanks in advance! the tilde operator , variable $home entered strings , therefore not function while saving. have provide either relative path (as did) or provide full path. eg. pylab.savefig("/home/username/desktop/myfig.png") .
Read more