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Interesting. This is probably something that could be fixed in the database plugin.
Chuck
Is there a way in WO to remove the t0 from the order by clause?
On Jul 14, 2015, at 10:29 AM, Theodore Petrosky < email@hidden> wrote:
interesting this worked in postgresql:
SELECT (EXTRACT(YEAR FROM c_materials_close_ns_timestamp) * 100 + EXTRACT(MONTH FROM c_materials_close_ns_timestamp)) AS t_test FROM t_grid t0 ORDER BY t_test ASC’
notice the ORDER BY t_test has no table listed if I put in t0 it fails i.e. t0.t_test
SELECT (EXTRACT(YEAR FROM c_materials_close_ns_timestamp) * 100 + EXTRACT(MONTH FROM c_materials_close_ns_timestamp)) AS t_test FROM t_grid t0 ORDER BY t0.t_test ASC;
LOG: statement: SELECT (EXTRACT(YEAR FROM c_materials_close_ns_timestamp) * 100 + EXTRACT(MONTH FROM c_materials_close_ns_timestamp)) AS t_test FROM t_grid t0 ORDER BY t0.t_test ASC;
ERROR: column t0.t_test does not exist
LINE 1: ...ns_timestamp)) AS t_test FROM t_grid t0 ORDER BY t0.t_test ...
^
but this did:
colorgrid=# SELECT (EXTRACT(YEAR FROM c_materials_close_ns_timestamp) * 100 + EXTRACT(MONTH FROM c_materials_close_ns_timestamp)) AS t_test FROM t_grid t0 ORDER BY t_test ASC;
LOG: statement: SELECT (EXTRACT(YEAR FROM c_materials_close_ns_timestamp) * 100 + EXTRACT(MONTH FROM c_materials_close_ns_timestamp)) AS t_test FROM t_grid t0 ORDER BY t_test ASC;
t_test
--------
199906
199908
199908
199908
199909
199909
On Jul 14, 2015, at 9:59 AM, Calven Eggert < email@hidden> wrote:
As
it turns out, this method does not work in the WO application. (It does work when executing it from a SQL command line) The fetch spec fails when the new column is included the sort:
EvaluateExpression failed: <com.webobjects.jdbcadaptor.OraclePlugIn$OracleExpression: SELECT (EXTRACT(YEAR FROM APPT_DATE) * 100 + EXTRACT(MONTH FROM APPT_DATE)) AS "YEARMTH", FROM the_table
t0 ORDER BY t0.YEARMTH ASC,
Next exception:SQL State:42000 -- error code: 904 -- msg: ORA-00904: "T0"."YEARMTH": invalid identifier
If the new column is removed from the sort then the select statement works:
SELECT (EXTRACT(YEAR FROM APPT_DATE) * 100 + EXTRACT(MONTH FROM APPT_DATE)) AS “YEARMTH" FROM the_table t0
This is the new column created in EntityModeler:
(EXTRACT(YEAR FROM APPT_DATE) * 100 + EXTRACT(MONTH FROM APPT_DATE)) AS “YEARMTH"
Any other ideas, other than creating a new view in the database or new column in the table?
Le 2015-07-13 à 16:48, Calven Eggert <email@hidden> a écrit :
Thanks Chuck!
I had to add the ŒAS¹ clause to the Read Format, otherwise, I
received an invalid SQL statement. I then took advantage of the
situation by concatenating my two values (year and month) and padded
the month so that I would always get a 6 digit string so I could then
do some comparisons with the value for a report.
Read Format:
EXTRACT(YEAR FROM APPT_DATE) || LPAD(EXTRACT(MONTH FROM APPT_DATE),
2, '0') AS YM
On Jul 13, 2015, at 4:10 PM, Chuck Hill <email@hidden> wrote:
Sorry, not derived. Battling too many tasks this morning. A read
format should do it (so the same column defined as three class
property attributes: theDate, theDateYear and theDateMonth (feel free
to pick better names :-)
<DE4C48C1-45C2-420F-A017-59C3BC72CBD6.png>
On 2015-07-13, 1:05 PM, "Theodore Petrosky" wrote:
I just looked in there. How do you set that up? I tried playing but
I guess I don¹t understand the derived column.
Thanks Chuck!
On Jul 13, 2015, at 2:20 PM, Chuck Hill <email@hidden> wrote:
Just a note that you can use the extract (year from theDate) and
extract (month from theDate) in a derived column in EntityModeler
which avoids the need for a view.
On 2015-07-13, 11:16 AM, "Theodore Petrosky" wrote:
you didn¹t mention your database, but I have done things like this
with a view.
I created a view with the appropriate columns and in the select
statement I put in the order by
CREATE OR REPLACE VIEW myNewView AS SELECT info1, info2, theDate
FROM theTable ORDER BY extract (year from theDate) desc, extract
(month from theDate) asc;
A one point I actually set up some rules to make the ŒVIEW¹
updatable.
YMMV obviously depending on you access to the backend, and if Views
are supported.
Ted
On Jul 13, 2015, at 12:02 PM, Calven Eggert <email@hidden> wrote:
Hi, All
I have a fetch that sorts records by three columns where one of the
columns is a date (timestamp). Is there a way to sort the date by
month & year only?
Thanks,
Calven
Here is the current fetch:
...
EOSortOrdering sortBySource = new EOSortOrdering("source",
EOSortOrdering.CompareCaseInsensitiveAscending);
EOSortOrdering sortByAppt = new EOSortOrdering("appointmentDate",
EOSortOrdering.CompareCaseInsensitiveAscending);
EOSortOrdering sortBySite = new EOSortOrdering(³site",
EOSortOrdering.CompareCaseInsensitiveAscending);
NSMutableArray orderings = new NSMutableArray();
orderings.addObject(sortBySource);
orderings.addObject(sortByAppt);
orderings.addObject(sortBySite);
EOFetchSpecification spec = new EOFetchSpecification(³records",
qual, orderings);
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