Best way to implement Entity with translatable properties in NHibernate -

-

consider following class (simplified in order focus in core problem):

public class question {     public virtual string questionid { get; set; }      public virtual string text { get; set; }      public virtual string hint { get; set; } }

and tables:

question - questionid ((primary key, identity column , key) - code  questiontranslation - questiontranslationid (primary key, identity column; not relevant association) - questionid (composite key element 1) - culturename (composite key element 2) (sample value: en-us, en-ca, es-es) - text - hint

how can map question class text , hint properties populated using current thread's culture. if thread's culture changed text , hint properties automatically return appropriate value without need question entity reloaded.

note i'm outlining relevant class , properties business side. i'm totally open new class or property needed achieve desired functionality.

edited reflect changed answer:

public class question {     public virtual string questionid { get; set; }      public virtual string text     {                 {             var currentculture = cultureinfo.currentculture.name;             return translations                 .where(trans => trans.culturename == currentculture)                 .select(trans => trans.text)                 .firstordefault();         }         set         {             var currentculture = cultureinfo.currentculture.name;             var translation = translations                 .where(trans => trans.culturename == currentculture)                 .firstordefault();             if (translation == null)             {                 translation = new questiontranslation();                 translations.add(translation);             }             translation.text = value;         }     }     public virtual string hint     {                 {             var currentculture = cultureinfo.currentculture.name;             return translations                 .where(trans => trans.culturename == currentculture)                 .select(trans => trans.hint)                 .firstordefault();         }         set         {             var currentculture = cultureinfo.currentculture.name;             var translation = translations                 .where(trans => trans.culturename == currentculture)                 .firstordefault();             if (translation == null)             {                 translation = new questiontranslation();                 translations.add(translation);             }             translation.hint = value;         }     }      protected virtual icollection<questiontranslation> translations { get; set; } }  class questiontranslation {     public virtual int id { get; protected set; }     public virtual string culturename { get; set; }     public virtual string text { get; set; }     public virtual string hint { get; set; } }  <class name="question" xmlns="urn:nhibernate-mapping-2.2">   <id name="questionid" column="questionid"/>    <bag name="translations" table="questiontranslation" lazy="true">     <key>       <column name="questionid"/>     </key>     <one-to-many class="questiontranslation"/>   </bag> </class>  <class name="questiontranslation" table="questiontranslation" xmlns="urn:nhibernate-mapping-2.2">   <id name="questiontranslationid"/>   <many-to-one name="parentquestion" column="questionid"/> </class>

if have lot of translations change icollection<questiontranslation> translations { get; set; } idictionary<string, questiontranslation> translations { get; set; } , map <map> above should it


Comments

Post a Comment

Popular posts from this blog

c# - How to set Z index when using WPF DrawingContext? -

-
how set z-index drawing object when using drawingcontext.drawxxx() methods? the object drawn last have higher z index. can't change index of drawn objects. way draw in order. if using wpf (as placed tag), can use, example, canvas control. create shapes need like polyline obj = new polyline(); //... // ... set properties of obj and add them canvas uielementcollection: yourcanvasname.children.add(obj); //or yourcanvasname.children.insert(i, obj); first items of collection have higher z index. advantages in way: no need redraw on window changes, can anytime move objects , change order.
Read more

razor - Is this a bug in WebMatrix PageData? -

-
i think may have found bug in webmatrix's pagedata, not sure. concerns how pass data partial page calling page. in webmatrix documentation (tutorials, e.g. " 3 - creating consistent look ", , example code), pagedata recommended mechanism pass data between pages (e.g. content page layout page, or partial page). however have found not work other way, pass data partial page calling page. modifying or adding entries in pagedata in partial page, not seem calling page. cutting right down simplest possible example, in test page may have this: @{ pagedata["test"] = "initial entry"; } <p>before calling partial page, test value @pagedata["test"]</p> @renderpage("_testpartial.cshtml") <p>after returning calling page, test value @pagedata["test"]</p> and in _testpartial.cshtml page might have this: @{ pagedata["test"] = "modified entry"; } <p>in partial page...
Read more

visual c++ - Using relative values in array sorting ( asm ) -

-
i need sort through array , sort each individual row in array in ascending order. doesn't seem going (surprise!) keep getting hit 2 errors: a2101: cannot add 2 relocatable labels , a2026: constant expected here's sort, makes sense me, think i'm still trying implement high-lvl language techniqes assembly. there way around not being able use relative values? (the array 7 rows 9 columns, btw). mov cx, 7; cx = number of rows outer: ; outer loop walk through rows push cx mov cx, 9 mov row, cx ;rows middle: ; middle-loop walk through columns push cx sub cx, 1 ;cx = cx-1 mov column, cx ;columns inner: ;inner loop - compare , exchange column values cmp marray[row*9 + column], marray[row*9 + column+1] xchg marray[row*9 + column+1], marray[row*9 + column] ; compare , exchange values marray table inc column loop inner pop cx loop mid...
Read more