Re: NSDictionary Within An NSDictionary - Getting Values
Re: NSDictionary Within An NSDictionary - Getting Values
- Subject: Re: NSDictionary Within An NSDictionary - Getting Values
- From: Jonathan Rochkind <email@hidden>
- Date: Tue, 20 Jan 2004 11:25:09 -0600
There's nothing special about a dictionary of dictionaries, and no
special API on NSDictionary to allow you to treat it specially.
NSDictionary dictOfDicts; //assume exists
NSDictianary subDictionary = (NSDictionary) dictOfDicts.valueForKey("item");
Object value = subDictionary.valueForKey("itemPrice");
Or, in one line:
Object itemPrice = ((NSDictionary)
dictOfDicts.valueForKey("item")).valueForKey("itemPrice");
--Jonathan
At 12:50 AM +0000 1/20/04, Jonathan Fleming wrote:
I want to be able to get the itemPrice value out of this dictionary
so I'm using valueForKeyPath("item.itemPrice") and I've even used
valueForKeyPath("item.values.itemPrice") but I just get the
exception saying:
error1
com.webobjects.foundation.NSKeyValueCoding$UnknownKeyException:
valueForKey(): lookup of unknown key: 'itemPrice'. This class does
not have an instance variable of the name values or _values, nor a
method of the name values, _values, getValues, or _getValues
error2
com.webobjects.foundation.NSKeyValueCoding$UnknownKeyException:
valueForKey(): lookup of unknown key: 'values'. This class does not
have an instance variable of the name values or _values, nor a
method of the name values, _values, getValues, or _getValues
{item = {values = {attr1 = "Adult Male"; attr2 =
<com.webobjects.foundation.NSKeyValueCoding$Null>; attr3 =
<com.webobjects.foundation.NSKeyValueCoding$Null>; attr4 =
<com.webobjects.foundation.NSKeyValueCoding$Null>; attr5 =
<com.webobjects.foundation.NSKeyValueCoding$Null>; productid =
"AV-SB-02"; listPrice = 15.000000000000000000000000000000; supplier
= "<com.webobjects.eocontrol.EOGenericRecord 50988
(com.webobjects.eoaccess.EOAccessFaultHandler
_EOIntegralKeyGlobalID[Supplier (java.lang.Integer)1])>"; itemid =
"EST-19"; product = "<com.webobjectsexamples.petstore.Product 941f7
_EOVectorKeyGlobalID[Product (java.lang.String)AV-SB-02]>"; unitCost
= 2.000000000000000000000000000000; status = "P"; inventory =
"<com.webobjectsexamples.petstore.Inventory 34e29b
_EOVectorKeyGlobalID[Inventory (java.lang.String)EST-19]>"; }; this
= "<com.webobjectsexamples.petstore.Item 7a1576
_EOVectorKeyGlobalID[Item (java.lang.String)EST-19]>"; }; total =
30.0; qty = 3; }
Kind regards
Jonathan
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