private void SetupComponentParts(DynamicComponentPart<IDictionary> part)
{
IList<string> dynamicColumns = GetCustomerColumns();
foreach(string col in dynamicColumns)
{
string temp = col; // Avoid any modified closure issues.
c.Map(x => (string)x[temp]);
}
}
DynamicComponent(x => x.AdditionalFields, c => SetupComponentParts(c));
That's it..
On Sat, Jun 20, 2009 at 5:11 PM, rob <[email protected]> wrote:
>
> Funny...this is exactly my situation. See my post on Dynamic
> components from a couple days ago. Unfortunately, this statement won't
> work:
> c.Map(x => (string)x[temp]);
>
> because the variable temp isn't evaluated in the loop; the statement
> is turned into an expression tree and evaluated later; at which time
> "temp" won't exist. I've been trying all sorts of things the past few
> days, and may be close to a solution involvoing manually building the
> expression tree. Should know more on Monday. Keep me posted if you
> figure something out!
>
> On Jun 20, 8:45 am, Paul Batum <[email protected]> wrote:
> > Hi Silvia,
> >
> > Can the column details be discovered at startup time? I'm thinking of
> > something like this:
> >
> > IList<string> dynamicColumns = GetCustomerColumns();
> > DynamicComponent(x => x.AdditionalFields, c =>{
> > foreach(string col in dynamicColumns)
> > {
> > string temp = col; // Avoid any modified closure issues.
> > c.Map(x => (string)x[temp]);
> > }
> >
> > });
> >
> > Paul Batum
> >
> > On Tue, Jun 16, 2009 at 10:10 AM, Silvia <[email protected]> wrote:
> >
> > > I have the below situation that I need help figure it out.
> > > I am using fluent nhibernate with a legacy database. I need to map
> > > some additional columns to a dictionary(?) property in my entity
> > > dynamically, because I do not know the number of columns and column
> > > names and other specifications at compile time and I dynamically need
> > > to work with those columns(insert,update...).There is another object
> > > which has those information and has a relationship with my main entity
> > > based on the value of two other columns.Is this possible in
> > > nhibernate?
> > > I tried to use DynamicComponent but the problem is I don't know what
> > > would be the properties in my component.
> > > I have something like this:
> >
> > > In Entity.cs :
> > > public virtual IDictionary AdditionalFields { get; set; }
> > > public virtual Info AdditionalFieldsInfo{get; set;}
> >
> > > And in EntityMap.cs:
> > > References(x => x.AdditionalFieldsInfo);
> > > and I supposedly should have something like this:
> > > DynamicComponent(x => x.AdditionalFields , m =>
> > > {
> > > m.Map(?Which I don't know how to map because I dont have the number of
> > > columns to be mapped and column names.These information needs to come
> > > from AdditionalFieldsInfo);
> > > });
> >
> > > I also posted the question to nhusers group([email protected])
> > > but I still not very sure how to implement this.
> > > I do appreciate if someone could help.
> > > Thanks.
> > > Silvia
> >
>
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