nhibernate - Projections with Restrictions.Discjunction -

-

projections restrictions.discjunction() or restrictions.or() produce clause instead of having clause. result in error (the clause cannot refer aggregate expressions).

example:

.createcriteria(typeof(salesorderline), "sol") .createcriteria("deliveryorderlines", "dol", jointype.leftouterjoin) .setprojection(     projections.groupproperty("sol.key").as("salesorderlineid"),     projections.groupproperty("sol.item"),     projections.groupproperty("sol.description"),     projections.groupproperty("sol.unitprice"),     projections.groupproperty("sol.quantity"),     projections.groupproperty("sol.discountpercentage"),     projections.groupproperty("sol.salesorder")) .add(restrictions.or(     restrictions.isnull(projections.sum("dol.quantity")),     restrictions.gtproperty("sol.quantity", projections.sum("dol.quantity")))),  .list();

sql result:

select this_.salesorderlineid y0_, this_.item y1_, this_.description y2_, this_.unitprice y3_, this_.quantity y4_, this_.discountpercentage y5_, this_.salesorderid y6_ salesorderline this_ left outer join deliveryorderline dol1_ on this_.salesorderlineid=dol1_.salesorderlineid  (sum(dol1_.quantity) null or this_.quantity > sum(dol1_.quantity)) group this_.salesorderlineid, this_.item, this_.description, this_.unitprice, this_.quantity, this_.discountpercentage, this_.salesorderid

am doing wrong ? or bug in nhibernate 3.1 ?

thanks in advance :).

last time checked having clause isn't supported criteria api. you'll need use hql, support having.

to use criteria api you'll have modify query this:

select this_.salesorderlineid y0_, this_.item y1_, this_.description y2_, this_.unitprice y3_, this_.quantity y4_, this_.discountpercentage y5_, this_.salesorderid y6_ salesorderline this_ left outer join deliveryorderline dol1_ on this_.salesorderlineid=dol1_.salesorderlineid  (select sum(quantity) deliveryorderline) null or (select sum(quantity) > salesorderline ) > (select sum(quantity) deliveryorderline) group this_.salesorderlineid, this_.item, this_.description, this_.unitprice, this_.quantity, this_.discountpercentage, this_.salesorderid

the solution i've given have performance hit because of multiple sum calculations, it'll job done.

you try this, i'm not sure if it'll run correctly:

select this_.salesorderlineid y0_, this_.item y1_, this_.description y2_, this_.unitprice y3_, this_.quantity y4_, this_.discountpercentage y5_, this_.salesorderid y6_, sum(dol1_quantity) sum1, sum(this_.quantity) sum2 salesorderline this_ left outer join deliveryorderline dol1_ on this_.salesorderlineid=dol1_.salesorderlineid  sum1 null or sum1 > sum2 group this_.salesorderlineid, this_.item, this_.description, this_.unitprice, this_.quantity, this_.discountpercentage, this_.salesorderid

hope helped!


Comments

Post a Comment

Popular posts from this blog

linux - Using a Cron Job to check if my mod_wsgi / apache server is running and restart -

-
my group , running server based upon django , uses mod_wsgi run apache server. not working on project after over, attempting set cronjob similar functionality check if apache server has shut down(system restart or power failure), , if has, restart server me. i've found documentation on how check if apache server down , restart server if is, our server uses https , our start command pretty verbose. can use functionality provided in these examples: https://askubuntu.com/questions/277389/cron-job-to-restart-apache https://www.digitalocean.com/community/tutorials/how-to-use-a-simple-bash-script-to-restart-server-programs or need more complicated process make happen? the command use start server is python manage.py runmodwsgi --host 0.0.0.0 --port 8001 --https-port 8000 --ssl-certificate (certificate location) --server-name (domain name) i'm pretty new linux , using both mod-wsgi apache appreciated. you better off using --setup-only option mod_wsgi-expres
Read more

actionscript 3 - TweenLite does not work with object -

-
i got following problem: i have object called tempscore game. this object blitted canvas renderer via copypixels method. object not display object. it's score-object (self made). score-object extends object called basicblitarrayobject. basicblitarrayobject extends eventdispatcher (therefore no display object). i tried apply several different tweenlite-plugins tempscore-object (i.e. transformaroundcenter, colormatrixfilter, etc.). nothing happens. absolutely nothing. sometimes error messages (when plugin requires display object , object not display object). far good. according greensock (maker of tweenlite) engine can tween numeric property of object. when plugin transformaroundcenter requires display object tweening have modify plugin working non-display object (tempscore). can't because it's way hard me. my game rests upon code: http://www.8bitrocket.com/book/ch11_blastermines.zip try apply tweenlite object called tempmine inside game class blastermines.
Read more

jQuery Ajax Render Fragments OR Whole Page -

-
i'm in throes of building application wraps mess of legacy code. page working on, need substitute fragment divs constructed on back-end -- or else need replace entire page altogether. idea there dynamically controlled flow needs satisfied before can forward legacy product. substituting fragments works fine, seen in below my_body_content swap. trouble comes when i'm trying render not fragment, whole page, in "body" swap. @ point page goes blank. i want similar errors returned server. want nice rest 404 error messages displayed on screen, legacy-product 404s show in legacy-product 404 page. yes, requirements project weird. that's not problem can fix. here's jquery invocation, names changed protect guilty: $.ajax({ url: "places/things", type: "post", data: json.stringify(somebadassobject), datatype: "text", accepts: "text/html", contenttype: "application/json; charset=
Read more