On Mar 12, 2010, at 10:23 AM, Chuck Hill wrote:
> On Mar 12, 2010, at 7:23 AM, Kieran Kelleher wrote:
>
>> Hi Chuck,
>>
>> Resurrecting this old thread
>>
>> What do you mean by "moderate"? For example a virtual table with 20 fields,
>> half being numbers and half being varchar255 strings,
On Mar 12, 2010, at 10:23 AM, Chuck Hill wrote:
On Mar 12, 2010, at 7:23 AM, Kieran Kelleher wrote:
Hi Chuck,
Resurrecting this old thread
What do you mean by "moderate"? For example a virtual table with 20
fields, half being numbers and half being varchar255 strings, how
many virt
On Mar 12, 2010, at 7:23 AM, Kieran Kelleher wrote:
Hi Chuck,
Resurrecting this old thread
What do you mean by "moderate"? For example a virtual table with 20
fields, half being numbers and half being varchar255 strings, how
many virtual records would be regarded as too much?
It is
Hi Chuck,
Resurrecting this old thread
What do you mean by "moderate"? For example a virtual table with 20 fields,
half being numbers and half being varchar255 strings, how many virtual records
would be regarded as too much?
Regards, Kieran
On Jan 19, 2009, at 3:22 PM, Chuck Hill wrote:
Yes. if model changes can be made by data changes, we're done.
So we want to make eomodel somewhat more abstract and move model details
into (relational)database as data.
In that way, we want to make eo evolvable.
Every eo has its native class defined by eomodel. But we can assign a
runtime c
On Tuesday, January 20, 2009, at 05:50AM, "Susanne Schneider"
wrote:
>There is a lot of advantage of beeing mostly generic, but there are
>restrictions too. For example the implementation of "simple" new
>features, like a new report, can be more complex than desirable.
...but still simpler
Am 18.01.2009 um 17:44 schrieb Stamenkovic Florijan:
A question to the rest of the list: has anyone ever even tried
doing this with WO? And I don't mean just fiddling with the in-
memory model, but also saving the model, changing the DB schema on
the fly etc...
One can do that, but you'd
On 20.01.2009, at 11:50, Susanne Schneider wrote:
funny: our system is for healthcare too ;-)
Our software is for creating, managing and data collection of
clinical studies where the customers can do everything from setup to
export on their own without any programming needed from our side.
John Ours schrieb:
On Jan 19, 2009, at 2:33 PM, Stavros Panidis wrote:
my customer is a major department in a public hospital. Each time they
decide to perform an experiment and take in account different
measurements. No one can predict this. So they need to have the
ability to create and/o
On Jan 16, 2009, at 12:20 PM, Stavros Panidis wrote:
Hi all,
I am developing an application where I want to give to the end user
the ability to alter EOModel and database, that is to add fields in
a table, or to add a new table and to be able to insert and/or edit
data on this table.
I
On Jan 19, 2009, at 2:33 PM, Stavros Panidis wrote:
my customer is a major department in a public hospital. Each time
they decide to perform an experiment and take in account different
measurements. No one can predict this. So they need to have the
ability to create and/or alter existing
Well, EOF coupled with a "standard" SQL RDBMS is not the same thing as
Access, FileMaker or 4D. FileMaker and Access was build for non-
technical people so that they can build small databases themselves.
But why don't you store extra information in plist or XML stored in a
single field in a
On 19.01.2009, at 20:33, Stavros Panidis wrote:
Hi Susanne,
I fully understand!
But it is hard to accept that I can do it very easily with ACCESS or
4D and not with WebObjects.
Imagine,
my customer is a major department in a public hospital. Each time
they decide to perform an experimen
Hi Susanne,
I fully understand!
But it is hard to accept that I can do it very easily with ACCESS or
4D and not with WebObjects.
Imagine,
my customer is a major department in a public hospital. Each time they
decide to perform an experiment and take in account different
measurements. No
Hi Stravros,
having done this I would rather recommend not to go this road unless you
are really shure there is no other way. You will find a lot of pitfalls
you did not even imagine now ;-)
At least, yes: it is possible. The API of EOF allows you to dynamically
create or alter any EOModel o
On Jan 16, 2009, at 16:20, Stavros Panidis wrote:
Hi all,
I am developing an application where I want to give to the end user
the ability to alter EOModel and database, that is to add fields in
a table, or to add a new table and to be able to insert and/or edit
data on this table.
I am
On 18-Jan-09, at 9:16 AM, Mike Schrag wrote:
not to mention if you alter the model, presumably you have to then
REWRITE the model at runtime, which presents all sorts of weird
security implications.
And that even if you do update and save the new model, having the
application use this upd
What about using a semantic database?
Relationnal databases are defined by a fixed schema, and they are not
made to have a changing schema. A good alternative is to use semantic
databases. You can't use them with the EOModel (I think), but they are
powerful for this kind of work. You can "ad
Are you really sure that you want to alter the MODEL on the fly? I
have really seen a need for something like that as it can normally
be done in better ways by making the model generic enough to handle
additional information or so. Every application that does for
example surveys does things
On 16.01.2009, at 21:20, Stavros Panidis wrote:
Hi all,
I am developing an application where I want to give to the end user
the ability to alter EOModel and database, that is to add fields in
a table, or to add a new table and to be able to insert and/or edit
data on this table.
I am su
Stavros -
The documentation on this should really be pretty clear. Look in the
API references. Do you want to change the model? Look at the EOModel
class (full name = com.webobjects.eoaccess.EOModel). That will lead
you to other classes, for example, EOModelGroup, EOEntity,
EOAttribute,
Hi all,
I am developing an application where I want to give to the end user
the ability to alter EOModel and database, that is to add fields in a
table, or to add a new table and to be able to insert and/or edit data
on this table.
I am sure that there is a way to do it but as with the wh
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