Upon logging into their accounts, each user has their login date and time stored to the database. What I was looking to do however is figure out the amount of days (or preferably convert into months if greater than a month) so that if a user views their profile they can see how active the band are. Also, this could benefit me in terms of keeping active profiles top of the agenda for content on the site so that it doesn't become stale from inactive users content filling up main page content.
I'm using ColdFusion so i'd be looking for a way to find for example how many days ago #lastLogin# was from #now()#. So say if the date of the last login was 23/04/2013 and todays date is 29/04/2013 it would read "Last Active, 1 day ago." However if the last login was 23/03/2013, it would read "Last Active, 1 month ago".
Anybody know how to do this? Thanks.
P.S I currently have no code from testing this as I have no idea where to start in terms of achieving this.
Use DateDiff
<cfset days = dateDiff("d", LoginDateVariable, now()) />
It's as simple as that.
P.S I currently have no code from testing this as I have no idea where
to start in terms of achieving this.
This doesn't answer your direct question but to help you know where to get started, I would strongly suggest reviewing the built in ColdFusion functions and tags that are available to you.
Tags
Tags by function
Functions
Functions by category
Also, Google searches usually land you at the docs, just add "coldfusion" to your search string. Searching google for coldfusion date functions yields very helpful answers, the first of which are a list of all ColdFusion date functions.
Dale's answer is spot on. But I would also suggest returning it as a variable with your query. Let the SQL server do the work. It's very efficient for those types of calculations. Not that CF can't do them well, too. But it's probably more appropriate for SQL to do that lifting. Especially if you're already returning the lastLogin date.
It would be similar to the CF solution:
SELECT ...., lastLogin, DATEDIFF(d, lastLogin, GETDATE()) AS LastLoginDays
FROM ....
WHERE ....
That would give you the number of days. You'd have to decide how you wanted to define a month if you wanted to break it out by month/day. That would get a bit more complex. You could write a SQL function that could be run on both dates and give you an accurate count of days/months/years since last login.
One other thing to keep in mind: Where are the dates being generated? When you insert loginDate into the database, are you doing a now() in CF before you insert it or are you doing a getDate() in SQL when you insert it? Again, I would let the database do your date logic, but you'd want to compare the two dates from the same source. For instance, if your loginDate was a database getDate() then you may not want to compare that to a CF now(). One goes by the datetime of the SQL server and the other goes by the datetime of the CF server. They could be different.
Related
I have created a simple generic inquiry that shows some data after joining two tables. I am now struggling to implement a condition that should make the result only contain rows where a date field is equal to yesterday date.
I am a bit annoyed as Acumatica has created the method `today()` neatly, but not a `yesterday()` or `tomorrow()`.
Does anyone have a good solution that they care to share?
Help is much appreciated,
Cheers.
P.s
I have made this very hackish solution that somewhat works, but breaks between change in month or year.
=CStr(Year(Today()))+CStr(Month( Today() ))+CStr( Day(Today())-1)
Okay, so I found the solution to my problem!
I read that Acumatica is coded C# and.NET which made me think of how adding dates is done there. You utilise the DateAdd(date, interval, number) under the time tab to create relative changes to date.
In this case, the date is the time source from where you want to change, interval is in which interval/dimension you wanna move, for example, 'd' is for days. You can find more prefixes here: crosspost. Lastly, number is how much you want to change in the interval, in my case -1.
TLDR; Use DateAdd(Today(), 'd', -1) to get the previous date in relation to the current date.
You can simply write Equals to #Today-1 for Yesterday like below:
Context: I am using Microsoft Dynamics (CRM) and Eloqua to send email campaigns. I have a date field in CRM that I want to check against in Eloqua for a specific campaign. This campaign needs to check to see if the date field is <= today's date + 90 days. I am using the campaign UI in Eloqua, not doing anything programmatically at this point.
I have tried using the Compare Custom Object Fields decision in Eloqua by finding the date field, setting the comparator to dynamically on or before, and I want to make the compared value Today + 90 days. I'm not sure how to accomplish this in this type of Decision object because the only options I have to compare the date field to are Yesterday, Today, or Tomorrow. See image below:
I have also tried to use the Compare Date Decision object, but there is no dynamic comparison, just hard-coded date options.
The last thing I tried was a Wait step, but that only waits a hard-coded number of days rather than checking dynamically.
Has anyone run into this issue or know of a solution to this problem?
We were able to find an Eloqua Date App to download that adds a Date Decision step to the program builder which allowed us more flexibility with comparing dates in a custom range.
I have an old app that let's users insert dates so everyone knows when they will be on vacation. Up until now, they had text field where they would enter text as they like ("1.1,5.1,21.1-25.1") or whatever they want as it is simple text field.
This kind of input excludes any chance of filtering or search.
I started playing with Yii not too long ago and this is first time i need to work with multiple dates and or date ranges.
What i need is advice on how to store those dates / date ranges into database? I know Yii has it's way to store single date (i have done it before), but i have no idea if it can work with date ranges and or multiple dates.
If any of you out there had similar problem i would apriciate your advice on how to store those dates and maybe extensions you used etc.
Of course i would like to make it user friendly with date pickers and search capabilities, but i'm taking it step by step. Once i have it stored correctly, searching and filtering wont be huge pain.
What i need is advice on how to store those dates / date ranges into database?
Well that depends on how do you want to use the date range. It depends on what is the criteria for searching. Because If you dont need to search the dates regularly then there may be some dirty ways to accomplish this task.
But if you need to search it frequently then you should make explicit columns for starting and end dates in the database table.By making explicit tables you can search in date ranges easily. for example you can run an sql query like
SELECT * FROM yourtable WHERE startDate<="some date" AND endDate>="some date"
NOTE:
You have to be careful about the format of date in your php code and format of date in database.
If you need to use date range just for calculation purposes then you can use simple php code to accomplish that.
$startDate = '2014-02-20';
$endDate = '2014-03-20';
$inputDate = '2014-02-28';
$start = strtotime($startDate);
$end = strtotime($endDate);
$input = strtotime($inputDate);
bool $isBetween=(($user >= $start) && ($user <= $end));
Yii way:
Actually there is not yii way to work with date range through one window. Actually each framework provide basic independent access to all attributes.That does not mean you cant change the behavior. Yes you can, but you need to code more. There are some extensions which you may find helpful in future
Adding a date range search for CGridView the easy way
How to filter CGridView with From Date and To Date datepicker
I need to get timestamps from Axapta-tables in TSQL, without timezone and / or daylight-bias-offsets for each time, eg from table JMGABSENCECALENDAR.
Taking this as initial approach, and regaring this, it works for current time. But reading data from the table referring to other timestamps, the solution provided in the second link doesn't get the information about daylight to the specified time.
For example:
I add an absence for today ( 2012-01-07 ).
Now, using SSMS, reading this dataset leads to
starttime = 2013-01-06 23:00:00.000
and endtime = 2013-01-07 23:00:00.000
That's ok, and I can use
DECLARE #UTCOffset SMALLINT
EXEC master..xp_regread
'HKEY_LOCAL_MACHINE',
'SYSTEM\CurrentControlSet\Control\TimeZoneInformation',
'ActiveTimeBias',
#UTCOffset OUTPUT
SELECT DATEADD(MINUTE, #UTCOffset, GETDATE()) AS UTCTime
to remove offset. This works fine on actual dates, but what's the right way to remove offset for past or future times, eg 2012-07-01 ?
Here, the offset is 120 minutes, because of summertime. Reading Reg-Value only returns current offset.
The task has to be solved in TSQL 2008.
I had a same problem, but it was in a complete different setting. I had nothing to do with axapta.
However, i had the problem that i had to know the UTC offset of different times. The tricky part here is the fact that different countries use a different approach towards daylight saving times, and therefor a difference in the offset may occur for different countries at the same time.
What i did was to create a lookup table where i put in the dates that UTC offsets change, these are known dates. I gave it an offset column so i could easily look up the offset that i needed for a certain date, using the between operator.
It worked for me, maybe this solution can provide you something?
Ps. You don't have to lookup the UTC date offset from out of the registry. Using the function getutcdate() will give you the same ;) Using that inside a DATADD makes it a little more readable ;)
Have fun and i hope i could contribute to your problem...
Just because the daylight savings switch dates change from year to year and state to state, your only viable option is a lookup table.
You can find the data for example here http://www.timeanddate.com/time/dst/2013a.html
However, you might not have to maintain that list yourself. timeanddate.com has a calculator on their site. Others offer similar services. You could look for a public API and then use a few lines of CLR code to call that API from your database.
Or you could use such a service to maintain your own copy of that data. Having your own lookup table will be by far the fastest solution.
In my application I have to store data month wise and year wise. So for this, I have to store the data along with date into database.
My requirement is how to store in terms of date and how to retrieve data with group by month and year. In my app I am showing a table of years and months, based on selected month and year. I have to show the data in a dashboard.
My problem is in storing and retrieving date data types.
Use the following syntax
SELECT * FROM DATABASE WHERE REQUIREDDATEFIELD LIKE '%2011-01%';
2011 is supposed to be the year
01 is supposed to be the month
DATABASE is supposed to be your mysql database name
REQUIREDDATEFIELD is supposed to be the field you are hoping to sort from month and year.
like '%2011-01%' is supposed to be meaning, all the records containing 2011-01 in the given field. It could be in the beginning or the end or in the middle of a large text, so having % in both the beginning and end of the search criteria is a good habit.
You just select either for a specific month or year or month and year. Or if you want all, you use GROUP BY.
I know this answer is quite vague and generic, but that's because your question is vague. You probably need to be more specific. Explain not only what you want to do, but what you have tried, and in which way that didn't work.