使用我执行的相同验证/处理,基于此线程:
Calling an Oracle Function via Ajax for on the spot Validation Purposes in Oracle APEX v4.2.2
我现在有一个表格形式,可以有1到n行,但是当用户按下“应用”按钮时,我需要根据上面的线程执行相同类型的验证,即:< / p>
一组示例行可能如下:
Col1 Col2 Col3 Col4
----------------------------
A 10 20 30
B 5 8 9
C 92 88 12
D 1 2 44
E 95 77 88
基于上面的场景,当用户按下“Apply”按钮时,通过Dynamic Action / Ajax(apex.server.process)调用,我需要使用上面的四列(没有复选框)遍历每一行在这里使用,只需选择列表,选择列值),调用我的 ajax进程检查是否:
(Col2 > Col4) for all rows
如果是这样,请通过javascript返回,向用户发送一条警告消息,指出数据存在问题(即来自apex.server.process的INVALID响应)。
在将记录提交到数据库之前,我基本上需要检查所有行的验证。
理想情况下,我想通过DA / Ajax / jQuery来解决这个问题。
答案 0 :(得分:1)
我将如何尝试解决它。请注意,这并未涵盖所有(任何?)可能性或大量错误处理。你必须自己详细说明一下。例如,我使用输入选择器,你需要“选择”。阵列可能不匹配。您可能需要一个完全其他的选择器,例如td [headers]。也许您的返回对象需要包含其他或更多值。您的js可能需要更多扩展 不过它应该为你提供一个良好的基础!
使用Javascript:
function validaterows(){
var arrf01 = [], arrf02 = [];
//fetch all the values from the source columns and put them in
//a javascript array.
$("input[name=f03]").each(function(){
arrf01.push($v(this));
});
$("input[name=f04]").each(function(){
arrf02.push($v(this));
});
//provide the constructed arrays to the on-demand process by using
//the global f## arrays
apex.server.process ( "MY_PROCESS", {
f01: arrf01
, f02: arrf02
}, {
, success: function( pData ) {
//pData should be an object, because jquery will have parsed the returned json-string
apex.debug(pData);
$.each(pData.validationArray, function(index, value){
if ( value === 'INVALID' ) {
// do something here when the result is invalid
// maybe you want to color something red for example
alert('The data at row '+index+' is not valid!');
};
});
}
} );
}
按需plsql进程:
DECLARE
l_return VARCHAR2(4000);
BEGIN
FOR i IN apex_application.g_f01.count
LOOP
-- remember: the f## arrays are varchar arrays. Important for comparisons.
-- Also take into account that the values could NOT be numeric at all.
-- you'll probably want to run each value through an is-number check or else
-- you'll run into ORA errors
IF to_number(apex_application.g_f01(i)) > to_number(apex_application.g_f02(i))
THEN
l_return := l_return || ',"INVALID"';
ELSE
l_return := l_return || ',"VALID"';
END IF;
END LOOP;
IF l_return IS NOT NULL
THEN
-- create a json string
-- holds an object with 1 property (validationArray) with the value being
-- an array holding a value for each row submitted
l_return := '{"validationArray":['||LTRIM(l_return, ',')||']}';
END IF;
-- write the output to the buffer
htp.p(l_return);
END;