Cascading LOV - and order by clause?

Hi, I have a collection that makes use of cascading lovs.
The cascading lov works properly, but I would like the return values sorted alphabetically and cannot figure out why they are not. If I run the query in SQL, it runs perfectly.
My query is:
select......
apex_item.select_list_from_query_xl(15,c015,'select port_name, port
from valid_ports
where state = '
||nvl(c014,0)
*||'order by port_name',*
'style="width:150px;background-color:#FBEC5D;"',
'YES',
'0',
'- Select PORT -',
'f15_' || LPAD (seq_id, 4, '0'),
NULL,
'NO' ) PORT,
c014 is a state code. Order by port_name.
any thoughts? thanks

Hi Varad, thanks for your response. It is the child...here is the full query, it may make more sense.
thanks again!
Karen
{select  apex_item.hidden (1,seq_id) checkbox,
apex_item.hidden (2,seq_id)||
        *apex_item.select_list_from_query(3,c003,'select partner_name d, state_code r*
                                                  *from   partners*
                                                  *where state_code is not null*
                                                  *order by partner_name',*
                           *'style="width:100px;background-color:#FBEC5D; "'*
                            *||'onchange="f_set_casc_sel_list_item_port(this,f4_'||LPAD (seq_id, 4,'0')||')"',*
                             *'YES',*
                                *'0',*
                                *'- Select State -',*
                                *'f3_' || LPAD (seq_id,4, '0'),*
                                *NULL,*
                                *'NO'*
                               *) STATE,*
           *apex_item.select_list_from_query_xl(4,c004,'select port_name, port*
                                                    *from   valid_ports*
                                                    *where  fips_state = '*
                                                    *||nvl(c003,0)*
                                                    *||' order by port_name',*
                                         *'style="width:150px;background-color:#FBEC5D;"',*
                                         *'YES',*
                                         *'0',*
                                         *'- Select PORT -',*
                                         *'f4_' || LPAD (seq_id, 4, '0'),*
                                         *NULL,*
                                         *'NO' )  PORT,*apex_item.POPUPKEY_FROM_LOV(5,c005,'VESSELS_DE',NULL,NULL,NULL,NULL,NULL,
                                'style="width:150px;background-color:#FBEC5D; "') vessel_id,
      apex_item.text(7,c007,8,null,'style="background-color:#FBEC5D;"'
||'onchange="f_set_start_date(this,f7_'||LPAD(seq_id, 4,'0')||')"') trip_start_date,    
        apex_item.text(8,c008,5,null,'style="background-color:#FBEC5D"')  trip_start_time,
        apex_item.text(9,c009,null,10,'style="width:100px;background-color:#FBEC5D"') trip_end_date,
        apex_item.text(10,c010,5,null,'style="background-color:#FBEC5D"')  trip_end_time,
        apex_item.SELECT_LIST_FROM_LOV(11,c011,'TRIP_TYPE','style="width:100px;background-color:#FBEC5D;  "') trip_type,
        apex_item.SELECT_LIST_FROM_LOV(12,c012,'YES_NO','onchange="setMultipleFishermen(#ROWNUM#);"','YES',0,' ','f12_#ROWNUM#') multiple_fishermen,
        apex_item.text(13,c013,3,null,'style="background-color:#FBEC5D"')  days_at_sea,
        apex_item.text(14,c014,3,null,'style="background-color:#FBEC5D"')  nbr_of_crew,
       -- apex_item.hidden(15,c015) supplier_trip_id,
        apex_item.hidden(16,c016,1) trip_nbr,
        apex_item.text(17,c017,5) partner_vtr
  from apex_collections where collection_name = 'TRIP_C'
}

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    <POqid>5</POqid>
    <popid>450</popid>
    <POtext>Yes</POtext>
    <POto>6</POto>
    </PO>
    <PO>
    <POoid>2</POoid>
    <POqid>5</POqid>
    <popid>450</popid>
    <POtext>No</POtext>
    <POto>8</POto>
    </PO>
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    <PI>
    <PIqid>6</PIqid>
    <PIpid>450</PIpid>
    <PItext>Is the customer having a problem with a specific website?</PItext>
    <PItype>Question</PItype>
    <PIfrom>5.1</PIfrom>
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    <POoid>1</POoid>
    <POqid>6</POqid>
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    <PO>
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    <POqid>6</POqid>
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    <PI>
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    <PIpid>450</PIpid>
    <PItext>1536: CBB1008 - Browser Setup and Daignostics</PItext>
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    <PIpid>450</PIpid>
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    <PItype>Question</PItype>
    <PIfrom>8.1</PIfrom>
    <PIto>9.2,9.1</PIto>
    <PIc>280</PIc>
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    <POoid>1</POoid>
    <POqid>9</POqid>
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    <popid>450</popid>
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    <popid>450</popid>
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    <POto>16</POto>
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    <POoid>2</POoid>
    <POqid>14</POqid>
    <popid>450</popid>
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    <POto>15</POto>
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    <PIqid>15</PIqid>
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    <PIe1>1</PIe1>
    <PIe2>6</PIe2>
    <PIe3>123</PIe3>
    <PO />
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    Hi,
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    EMEA     Inactive     21
    *APAC     Inactive     2
    *APAC     Inactive     1
    EMEA     Inactive     2
    EMEA     Inprogress     220
    LAD     Inprogress     19
    LAD     Other     2
    LAD     Other     0
    LAD     Other     5
    LAD     Recruited     182
    APAC     Recruited     191
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      2  (x int)
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      3  /
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    Oracle9i Enterprise Edition Release 9.2.0.7.0 - 64bit Production
    PL/SQL Release 9.2.0.7.0 - Production
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  • 3 Table Join with group by and order by clauses

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    Is it ok(I mean design wise) to pass the 'where clause' conditions and order by clause as a parameter to the method of DAO class?

    Well, I would suggest you write seperate methods in your dao , one to select data without the where clause and one to select data with the where clause thrown in. If you have different 'where' clauses for selecting different kinds of data, have that many dao methods. The dao methods being specific know exactly what is the data that's coming in.
    Lets assume you have a list of purchase orders and each purchase order is indetified by a unique id called PURCHASE_ORDER_ID.
    1. The following code would populate a purchase order's details given an id.
    private statis final String QUERY_1 = "select * from PURCHASE_ORDERS where PURCHASE_ORDER_ID = ? ";
    PurchaseOrderModel getPurchaseOrderData(long poId){
         //get a prepared statement from your connection
         PreparedStatement pst = conn.prepareStatement(QUERY_1);
         //set the poId passed as params to your query
         pst.setLong(1, poId);
         ResultSet rs = pst.executeQuery();
         if(rs.next()){
              //populate data into a model          
         finally{
              //clean up resources
         return model;    
    }2. The following code would return a list of PurchaseOrderModel's whose shipping date falls between a set of dates selected by the user.
    private statis final String QUERY_2 = "select * from PURCHASE_ORDERS where SHIPPING_DATE between ? and ? ";
    PurchaseOrderModel getPurchaseOrdersBetweenDates(list bindValues){
         //get a prepared statement from your connection
         PreparedStatement pst = conn.prepareStatement(QUERY_1);
         //set the dates passed as params to your query
         //we know that the List ought to contain only 2 dates
         pst.setDate(1, (Date)bindValues.get(0));
         pst.setDate(2, (Date)bindValues.get(1));
         ResultSet rs = pst.executeQuery();
         if(rs.next()){
              //iterate and populate data into a model          
              //add model to a list
         finally{
              //clean up resources
         return list;    
         3. This is more interesting - the dao method searches a list of Purchase Orders starting with a set of specific words. The words themselves may be one or many. This means that the number of '?' in your prepared statement may be dynamic. Each element of the list is a String that contains the start substring of a purcahse order name. For example - the list may contain elements like ["a", "ab", "c", "gh"] and the dao method returns all purchase order starting with these names.
    private statis final String QUERY_3 = "select * from PURCHASE_ORDERS where ";
    PurchaseOrderModel getPurchaseOrderNameMatches(list bindValues){
         //construct the query dynamically
         StringBuffer query = new StringBuffer(QUERY_3);
         int count = 0;
         for(Iterator itr = bindValues.iterator(); itr.hasNext();;){
              String value = (String)itr.next();
              query.append ("name like 'value%' ");
              if (count != 0 and (count+1 != bindValues.length)){
                   query.append(" or ");
              count ++;          
         //get a prepared statement from your connection
         PreparedStatement pst = conn.prepareStatement(query.toString());     
         ResultSet rs = pst.executeQuery();
         if(rs.next()){
              //iterate and populate data into a model          
              //add model to a list
         finally{
              //clean up resources
         return list;    
    To sum up,
    1. You need as many methods as you have different kinds of searches (one method for each kind of 'where' clause).
    2. The ejb/business layer would examine the data and decide on which method to call.
    3. Increases coding effort, but makes the code clean and readable. Each layer does it's job. Thus we dont have ejbs forming 'where' clauses and so on.
    Having said that, it really is your decision - you should take into consideration the following factors -
    1. How big is the project ? If its a huge codebase developed by many people, then segregate the responsibilities clearly in each layer as I have outlined. For a small scale project, you could go with your approach.
    2. Whats the take on maintenance and future add-ons ? Do you see the codebase growing with time ?
    3. Is your project a commercial one - is it a product that needs to be maintained or is it a one-off development - develop once and you are done with it.
    4. What are the design considerations ? Is somebody going to audit code for quality ? Or is it a academic one ?
    You should take into account all these before deciding to go one way or the other.
    A general thumb rule should be that you should be convinced that your code readable (maintainable), scalable and efficient. Anything that you do towards these ends is good code/design despite what people/books/patterns say, IMO.
    cheers,
    ram.

  • Need help in completing Denes Kubicek code: cascading lov in tabular form

    Hi, I have been working off of Denes Kubicek demo for cascading lovs and have finally (!) gotten it working....sort of.
    Denes's instructions indicate that you must request an account in order to receive the code. I have done so, but have not had a response....can anyone help me on what needs to be done in oder to complete his instructions?
    thanks!!
    here is his helpful code:
    http://htmldb.oracle.com/pls/otn/f?p=31517:176:2537143614094776

    sorry. my query is now:
    select
    apex_item.hidden(11,seq_id) seq,
    apex_item.hidden (12,seq_id)||
    apex_item.select_list_from_query_XL(13,c013,'select distinct s.common_name d, s.species_itis r
    from species s, species_qc c
    where partner_id = '||:f200_issuing_agency||' and
    c.species_itis = s.species_itis order by s.common_name',
    'style="width:220px" '
    || 'onchange="f_set_casc_sel_list_item(this,'
    || 'f16_'
    || LPAD (seq_id, 4, '0')
    || ')"',
    'YES',
    '0',
    '- Select Species -',
    'f13_' || LPAD (seq_id,4, '0'),
    NULL,
    'NO'
    ) SPECIES_ITIS,
    apex_item.select_list_from_query(14,c014,'select disposition_desc d, disposition_code r
    from dispositions
    where displayed = 1 order by disposition_desc') DISPOSITION_CODE,
    apex_item.text(15,c015) reported_quantity,
    apex_item.select_list_from_query(16,c016,'SELECT DISTINCT unit_desc ,unit_of_measure
    FROM species_Qc s, units_of_measure u
    WHERE s.unit_of_measure = u.unit_measure
    AND species_itis = '||c013||'AND partner_id = '||:F200_ISSUING_AGENCY,
    'style="width:220px"',
    'YES',
    '0',
    '- Select Unit -',
    'f13_' || LPAD (seq_id, 4, '0'),
    NULL,
    'NO' ) UNIT_MEASURE,
    apex_item.SELECT_LIST_FROM_LOV(17,c017,'SALE_DISPOSITION') SALE_DISPOSITION_FLAG,
    apex_item.text(18,c018) PRICE,
    apex_item.text(19,c019) PERMIT_ID,
    apex_item.select_list_from_query(20,c020,'select market_desc d, market_code r
    FROM market_categories
    where market_code in (select distinct market_code
    from species_qc
    where species_itis = '||c013||'
    and partner_id = '||:F200_ISSUING_AGENCY||')',
    'style="width:220px"',
    'YES',
    '0',
    '- Select Market -',
    'f13_' || LPAD (seq_id, 4, '0'),
    NULL,
    'NO' ) MARKET_CODE,
    apex_item.text(21,c021) GRADE_CODE,
    apex_item.text(22,c022) trip_id
    from apex_collections c
    where collection_name = 'CATCH_C' and
    c.c022 = :F200_CURRENT_TRIP_ID
    UNION ALL
    select
    apex_item.hidden(11,null) seq,
    apex_item.hidden (12,null)||
    apex_item.select_list_from_query_XL(13,0,'select distinct s.common_name d, s.species_itis r
    from species s, species_qc c
    where partner_id = '||:f200_issuing_agency||' and
    c.species_itis = s.species_itis order by s.common_name',
    'style="width:220px" '
    || 'onchange="f_set_casc_sel_list_item(this,'
    || 'f16_'
    || LPAD (9900 + LEVEL, 4, '0')
    || ')"',
    'YES',
    '0',
    '- Select Species -',
    'f13_' || LPAD (9900 + LEVEL,4, '0'),
    NULL,
    'NO'
    ) SPECIES_ITIS,
    apex_item.select_list_from_query(14,null,'select disposition_desc d, disposition_code r
    from dispositions
    where displayed = 1 order by disposition_desc') DISPOSITION_CODE,
    apex_item.text(15,null) reported_quantity,
    apex_item.select_list_from_query(16,null,'SELECT DISTINCT unit_desc ,unit_of_measure
    FROM species_Qc s, units_of_measure u
    WHERE s.unit_of_measure = u.unit_measure
    AND species_itis = '||0||'AND partner_id = '||:F200_ISSUING_AGENCY,
    'style="width:220px"',
    'YES',
    '0',
    '- Select Unit -',
    'f13_' || LPAD (9900 + LEVEL, 4, '0'),
    NULL,
    'NO' ) UNIT_MEASURE,
    apex_item.SELECT_LIST_FROM_LOV(17,null,'SALE_DISPOSITION') SALE_DISPOSITION_FLAG,
    apex_item.text(18,null) PRICE,
    apex_item.text(19,null) PERMIT_ID,
    apex_item.select_list_from_query(20,null,'select market_desc d, market_code r
    FROM market_categories
    where market_code in (select distinct market_code
    from species_qc
    where species_itis = '||0||'
    and partner_id = '||:F200_ISSUING_AGENCY||')',
    'style="width:220px"',
    'YES',
    '0',
    '- Select Market -',
    'f13_' || LPAD (9900 + LEVEL, 4, '0'),
    NULL,
    'NO' ) MARKET_CODE,
    apex_item.text(21,null) GRADE_CODE,
    apex_item.text(22,null) trip_id
    FROM DUAL
    WHERE :request = 'ADD'
    CONNECT BY LEVEL = 2
    I have two issues:
    1. the item tab_cascading_item is not populated when the value of c013 (species) is changed.
    2. I receive an error when trying to add a row to the collection. My code for doing so is:
    begin
    for i in 1..1 LOOP
    apex_collection.add_member (p_collection_name => 'CATCH_C',
    p_c013 => null,
    p_c014 => null,
    p_c015 => null,
    p_c016 => null,
    p_c017 => null,
    p_c018 => null,
    p_c019 => null,
    p_c020 => null,
    p_c021 => null,
    p_c022 => :F200_CURRENT_TRIP_ID );
    end loop;
    end;
    I am so close on getting this....any help would be appreciated.

  • Cascading lovs in Jdeveloper  R2

    on Jdev R2.
    I was doing several different Test with Jdev R2 regarding to cascading Lov and lovs components.
    here are results.
    lets split them in two flavors.
    I. Forms.
    a) cascading lovs works fine only if you use : input text item with lovs. (this one works fine even if you do not set autosubmit on the master and partial trigger on dependent lovs, .......cool)
    b) if you choose selectOneChoise, "what is really nice for short list" it does not work. not even if you set autosubmit and partial trigger.
    II. af:table
    a) on editing mode: editAll
    * using input text with lov works (you do not need to set autosubmit/partial triggers) but every time when you select a value from a list, an ugly error araise saying : field1 is required. field2 is required...to all require attributes (you can work after click)
    * using selectOneChoise did not work. after you select the first lov the next lov is surrounded by red square and never get refreshed.
    b) on editing mode: clickToEdit :
    this is really cool and fast, but cascading lovs does not work at all. not even input text with lovs
    has anybody any feedback/workaround/idea on this one, or should we wait until these bug get fixed, hopefully in the new release.
    also I was wondering what is the best approuch to execute some java code on load/unload.?
    thank you for any help.
    Luis

    to call java on load use af:clientlistener along with af:serverlistener.. use the type as load
    http://blogs.oracle.com/jdevotnharvest/entry/how-to_call_server_side_java_from_javascript
    or use the beforephase and afterphase property of f:view, refer navaneeth code here
    popup on page load using managed bean, using jdev-11.4
    use af:document's onunload property for unloading event and java calls

  • Cascading LOV in BEx Query OLAP Universe + BEx variable

    Hi gurus,
    we have an universe where a Cascading LOV has been defined based on a BO Hierarchy ( based on a BW hierarchy), the OLAP universe is based on a BEx query.
    Now, when the users create a WebI report selecting a value from the value list, the Cascading LOV appears and the user selects the value, descending by the nodes.
    We are analyzing the universe performance and we are testing to add some time BEx variables in the query ( in the current version no variables are used).
    Everything works properly but when we try to select a value from the Cascading LOV and try to select a lower level the webI returns a mdx error indicanting that the time variable is not informed. (WIS 10901: A database error ocurred; MDX query can not be executed: specify a value for the variable Z... )
    We thought that the mdx for the LOV get values from the MD table because in the infoobject definition, it has the Business Explorer Settings:
       Query Def. Filter Value Selection = Value in Master Data Table
       Query Execution Filter Val. Selectn  = Value in Master Data Table
    The Query Execution Filter Val. Selectn  can be defined at the infoprovider also (with the provider specific Properties of the infoobject) and also at the query, whe have not modify none of them.
    My first question is which settings has efect at OLAP Universes, the infoobject settings; the infocube settings or the query settings ?
    Are the Cascading LOV integrated with BEx Query OLAP Universe?
    Is it an application error?
    Many Thanks in advanced.
    Best Regards,
    Nuria

    Hi Ingo,
    many thanks for your quick answer.
    That was one of the possibilities we have analized but the problem is that the user has to inform the hierarchy level for all the reports, that kind of variables is translated in the universe as a prompt
    Now we have only one universe and some business analists users create reports themselves for the business area based on that universe.
    The users create WebI filters without prompts,just filtering the hierarchy node. If we add the BEx variable then the user sould inform the prompt for all the reports based on that universe.
    We want to avoid that prompt, we have several hierarchies in the query for different infoobjects.
    Thanks again.
    Best Regards,
    Nuria

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