How to return the values of LOV to items in forms

Question

Hi,
I have created an LOV based on a select statment that return 3 columns
I want to return theses 3 values to 3 items in the form?
I'll appreciate any suggestion.
Imad.

Answer 1

An LOV has only two components: text and value. You can see them in the html page's source. A work around is to use a procedure to query the data and create a cursor, count the # of records in the query. Create a javascript function to create parallel arrays to hold the data on the html page and pass the function parameters via an event on the page. Create the procedure in the db.
procedure follows...
CURSOR c_customer
/* use a cursor to get all the prices */
IS
SELECT
c.customer_number, c.customer_name, NVL(a.address1, 'N/A') ADDRESS1,
NVL(a.address2, 'N/A') ADDRESS2, NVL(a.city, 'N/A') CITY, NVL(a.state, 'N/A') STATE,
NVL(a.province, 'N/A') PROVINCE, NVL(a.country, 'N/A') COUNTRY, NVL(a.postal_code, 'N/A') POSTAL_CODE
FROM table1 b, table2 a, table3 c;
v_count NUMBER;
BEGIN
SELECT COUNT(*)
INTO v_count
FROM table1 b, table2 a, table3 c
where ...;
/*where clause and table names have been removed, use your's. They should be identical in both queries */
/* begin your Javascript, substituting values from the
cursor as necessary into parallel arrays*/
HTP.p('<script language="JavaScript1.1">');
HTP.p('<!-- ');
/* initialize the arrays */
HTP.p(' var customer_no_arr = new Array('||v_count||'); ');
HTP.p(' var customer_name_arr = new Array('||v_count||'); ');
HTP.p(' var address1_arr = new Array('||v_count||'); ');
HTP.p(' var address2_arr = new Array('||v_count||'); ');
HTP.p(' var city_arr = new Array('||v_count||'); ');
HTP.p(' var state_arr = new Array('||v_count||'); ');
HTP.p(' var province_arr = new Array('||v_count||'); ');
HTP.p(' var country_arr = new Array('||v_count||'); ');
HTP.p(' var postal_code_arr = new Array('||v_count||'); ');
/* populate the arrays */
FOR r IN c_customer LOOP
HTP.p ('customer_no_arr['||to_char(c_customer%ROWCOUNT - 1) ||'] = "'||r.customer_number||'";');
HTP.p('customer_name_arr['||to_char(c_customer%ROWCOUNT - 1)||'] = "'||r.customer_name||'";' );
HTP.p('address1_arr['||to_char(c_customer%ROWCOUNT - 1)||'] = "'||r.address1||'";' );
HTP.p('address2_arr['||to_char(c_customer%ROWCOUNT - 1)||'] = "'||r.address2||'";' );
HTP.p('city_arr['||to_char(c_customer%ROWCOUNT - 1)||'] = "'||r.city||'";' );
HTP.p('state_arr['||to_char(c_customer%ROWCOUNT - 1)||'] = "'||r.state||'";' );
HTP.p('province_arr['||to_char(c_customer%ROWCOUNT - 1)||'] = "'||r.province||'";' );
HTP.p('country_arr['||to_char(c_customer%ROWCOUNT - 1)||'] = "'||r.country||'";' );
HTP.p('postal_code_arr['||to_char(c_customer%ROWCOUNT - 1)||'] = "'||r.postal_code||'";' );
END LOOP;
/* use this variable to determine the size of the array */
HTP.p ('var num_customers = '||v_count);
/* create the function--accept a parameter that tells
you which customer has been selected from the select_co
combo box */
HTP.p ('function get_customer (form, field, customer_num)
var pieces = field.split(".");
var address1field = new String(pieces[0] + ".MASTER_BLOCK.ADDRESS1.01");
var address2field = new String(pieces[0] + ".MASTER_BLOCK.ADDRESS2.01");
var cityfield = new String(pieces[0] + ".MASTER_BLOCK.CITY.01");
var statefield = new String(pieces[0] + ".MASTER_BLOCK.STATE.01");
var provincefield = new String(pieces[0] + ".MASTER_BLOCK.PROVINCE.01");
var countryfield = new String(pieces[0] + ".MASTER_BLOCK.COUNTRY.01");
var zipcodefield = new String(pieces[0] + ".MASTER_BLOCK.POSTAL_CODE.01");
/* Get the customer number and pass it to the array to look up the address.*/
var customer_no = customer_num;
/* loop through the array until you find the right product ID */
for (var i=0 ; i < num_customers; i++)
if (customer_no_arr[i] == customer_no)
/* return the correct customer information */
form.elements[eval(address1field)].value = address1_arr;
form.elements[eval(address2field)].value = address2_arr[i];
form.elements[eval(cityfield)].value = city_arr[i];
form.elements[eval(statefield)].value = state_arr[i];
form.elements[eval(provincefield)].value = province_arr[i];
form.elements[eval(countryfield)].value = country_arr[i];
form.elements[eval(zipcodefield)].value = postal_code_arr[i];
/* close out the Javascript */
HTP.p ('//-->');
HTP.p ('</SCRIPT>');
END gen_customerlookup;
A specific example is found in the ORACLE Press book by Steve Vandiver & Kelly Cox "ORACLE9i Application Server Portal Handbook" ISBN # 0-07-222249-2 pages 358 - 361. Several lines, and better explaination than room for here.
get_customer (this.form, this.name, this.value); is placed in the appropriate event. Put "sales.gen_customer_lookup;" in the "before displaying the page" section. sales is the schema where the procedure gen_customer_lookup is created.
Ken