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https://issues.apache.org/jira/browse/FLEX-34209?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Justin Mclean resolved FLEX-34209.
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Resolution: Fixed
Fix Version/s: Apache Flex 4.13.0
Checked into develop branch - final fix needed a few more minor changes.
> DateFormatter's parseDateTime method doesn't handle AM PM properly when time
> is in the 12 PM hour
> -------------------------------------------------------------------------------------------------
>
> Key: FLEX-34209
> URL: https://issues.apache.org/jira/browse/FLEX-34209
> Project: Apache Flex
> Issue Type: Bug
> Affects Versions: Apache Flex 4.12.0
> Reporter: Doug Pierce
> Assignee: Justin Mclean
> Fix For: Apache Flex 4.13.0
>
>
> DateFormatter.parseDateTime does not properly parse strings in the noon hour
> with an AM or PM designator.
> For example, "2/13/2014 12:23:22 PM" does not translate to a date and instead
> returns a null value.
> Upon research into this method, it appears that there is a secondary "catch
> all" conditional for "Other Locales AM PM" that actually overwrites correct
> derivation of the "hour" value that is used to create the return Date value:
> // Other lacales AM/PM
> if (ampm.hasOwnProperty(word))
> {
> isPM = true;
>
> if (hour > 12)
> break; // error
> else if (hour >= 0)
> hour += 12;
> }
> This conditional does not appear to handle any time between 12:00, including,
> and 1:00 PM, excluding, properly as it makes the hour 24. When the final
> return value is calculated, the 24 hour actually rounds the total date value
> UP to the next day, resulting in a failed date derivation validation check
> found near the bottom of this method:
> // create a date object and check the validity of the input date
> // by comparing the result with input values.
> var newDate:Date = new Date(year, mon, day, hour, min, sec, milli);
> if (day != newDate.getDate() || mon != newDate.getMonth())
> return null;
> The check compares the read "day" value against the derived "getDate()" value
> which proves a true value - returning null instead of the derived date.
> I'm unsure of the reasoning for the "other locales" conditional. Therefore
> simply removing it may not be the proper solution. A better solution may be
> to remove the 12 value from the conditional as so:
>
> // Other lacales AM/PM
> if (ampm.hasOwnProperty(word))
> {
> isPM = true;
>
> if (hour > 12)
> break; // error
> else if (hour >= 0 && hour < 12)
> hour += 12;
> }
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