Thanks for pointing me in the right direction. I had no idea how well passing Flex Objects and CF Structures back-and-forth works. It's so simple, and CF Structures are fast. At the moment it displays object [Object] in the grid :-) but I'm able to bind a form to the properties of the object in that grid column, which is pretty cool.
I'm a couple small steps away from having the complete solution I have been looking for: using LCDS with multiple tables but only ONE generic class. Here's a bonus question. Within a data service can you have "subtopics" like you can have for messaging services? If so, then I'd be able to get away with having only one destination. Otherwise, I'll need a destination for every table, but that's not such a big deal. --- In [email protected], "jer_ela" <g...@...> wrote: > > Just have your cfc return the results as a query, or as an array of structs. > The first will be converted into an ArrayCollection of generic objects in > Flex, and the second into an Array of objects. Each of these objects will > have a property for each column in the record. > > Flex will be quite happy with these object and will let you do pretty much > anything you want to do with them. > > You can use > > for (var key:String in recordObject) > > to get the property names. Since your queries are going to be dynamic you > are going to have to process them dynamically and this is how you do it. > > You could also have your cfc return metadata about the result set, to tell > you which properties are the primary keys, and anything else you need to know > about the result to process it correctly. > > Having the server return objects that automatically get converted to typed > flex objects is great when you know what type of objects are going to be > returned. But if you don't Flex can handle untyped dynamic objects just > fine, and you should use them when the results of a service can't be known at > compile time. > > --- In [email protected], "postwick" <paul@> wrote: > > > > I cannot predict at compile-time what the name (or properties) of the class > > will be. I need to CREATE the class at runtime, AND add the properties to > > it. It seems, so far, that this is not possible. > > > > However, what I'm doing sounds very similar to your project. It's not so > > much the sheer number of tables (although a few dozen) but the fact that > > the application allows the creation of new tables (so I need a new class) > > and columns (so the properties might change). > > > > I can easily have my app write new destinations to the config file for any > > new table created. I can even write the necessary CFCs to disk based upon > > schema changes within the app. But I cannot find a way to get the classes > > I need. > > > > All tables share the same foreign key column name, which is helpful. My > > idea is this...set up one class that has two properties - the foreign key > > and a second column. I would have one destination for each table, but all > > destinations will point to the same class. When my CFCs pull data, I will > > have them return the primary key along with all other data encoded (XML or > > something) into the second property. Then on the client side I can manage > > it by filling an ArrayCollection, then having a function that parses the > > actual columns and rows (from the second property) into a second > > ArrayCollection that my datagrid is actually bound to. Creates/updates > > would go in the reverse direction - placed into the second ArrayCollection > > and then processed up to the two-property format for the first one, at > > which point LCDS will take over. > > > > As I think through it, this should work. Thoughts? > > > > --- In [email protected], "wrhinfl" <wrhinfl@> wrote: > > > > > > Ok, I think the way your question is worded can cause problems with the > > > answer you get. > > > > > > If your real question was "Can a class be modified during runtime and > > > how?" Would this be the same question you are asking? > > > > > > I searched the ASDocs and found Dynamic Class, which allows you to add > > > variables and functions to an instance of a class. I created a simple > > > application and uses one AS class twice, creating different variables and > > > functions in the two instances. > > > > > > The project I am working on is trying to do something very similar where > > > I don't want hundreds of classes to match the hundreds of tables (and > > > would require hundreds of java classes on the server). > > > > > > And your question made me do some searching, so let me know if this > > > question and answer are closer to what you are trying to accomplish in > > > your project and I can share my simple code (two files with 70 lines of > > > code, no comments). > > > > > > --- In [email protected], "postwick" <paul@> wrote: > > > > > > > > I want to store descriptions of classes in an external file (such as > > > > XML) or database, and use them in my Flex application such that I can > > > > add, remove, or change the classes in the external file with recompling > > > > the Flex application. > > > > > > > > Is there any way to do this? In a nutshell, is there a way to create a > > > > class through an Actionscript function, with a for loop where the > > > > information that is looped over contains the definitions of the classes > > > > loaded from an external source? > > > > > > > > > >
