Coldfusion variables inside variables - coldfusion

I am trying to loop through the 7 days in a week and insert data into a table. I have the 3 day abbreviation for the week but need to get the listlast values being passed through. it doesn't seem to be working though. Any thoughts on what I am doing wrong?
<cfset dayabbrev = #left(dayofweekasstring(DayOfWeek(firstofweek)), 3)#>
In the above variable that would set the 3 character day of week abbreviation like sun, mon, tue etc.
When I insert into the DB I need to get the last part of the form field after the underscore.
,<cfqueryparam value="#listlast(FORM.#dayabbrev#l, '_')#" cfsqltype="CF_SQL_VARCHAR" />
,<cfqueryparam value="#listlast(#dayabbrev#u, '_')#" cfsqltype="CF_SQL_VARCHAR" />
How would I change the form field name dynamically like this and still allow the listlast function to work? In the above example the form fields should be form.sunl and forn.sunu.

Need to use the evaluate() function. This will help to print the variable dynamically.
like this
listlast(evaluate('FORM.#dayabbrev#l'), '_')

Related

ColdFusion CFQuery Looking for Month Only

ColdFusion 9 using Access Database stores the Dates such as 1/12/2015, 2/22/2015, 1/21/2015 etc...
I am looking to only get Month results such as January only, Feb only etc...
I can easily pull the year only If I need it using:
<cfquery name="f" datasource="ds">
select * from master
where eventdate like '%#yr#%'
</cfquery>
Where year is like 2015 - I can easily get year.
But when I switch to:
where eventdate like '%1/%'
I get a Syntax FROM error - I can't get only January. Likely simple solution - but I'm missing it.
Thx for any help.
Use real dates, in a sane format.
yyyy-mm-dd is pretty much the only sane date format, whereas mm/dd/yyyy is pretty much the most insane date representation out there. Don't use that representation for any purpose except end user output.
<cfset date = Now()> <!--- or some other actual date -->
<cfset dtfrom = DateFormat(date, "yyyy-mm-01")>
<cfset dtuntil = DateFormat(DateAdd("m", 1, dtfrom), "yyyy-mm-01")>
<cfquery name="f" datasource="ds">
select * from master
where eventdate >= '#dtfrom#' and eventdate < '#dtuntil#'
</cfquery>
The advantage of using this form >= ... and < ... is that if you have an index on eventdate, it can be used for that. Almost every other variant of expressing the same condition (for example Month(eventDate) = ...) can't use an index.
You escape special characters in access using brackets like so:
WHERE evendate LIKE '%1[/]%'
Also, if your field is an actual DATE (doesn't sound like it) you can tease it out with month() as in:
WHERE MONTH(eventDate) = 1
You might also be able to convert/cast your character field into a data using ASDATE like so:
WHERE MONTH(asDate(eventdate)) = 1
There's the limit of my ancient access experience. good luck. :)
You can use the Format method available in Access.
Try this: Format([eventdate],"yyyy/mm/dd") or if you just want the month and don't care about the year, your query could look like this:
select * from master
where Format([eventdate],"mm") = 1

ColdFusion 11 DateFormat

I am moving one of our applications from ColdFusion 9.01 to ColdFusion 11 and encountered a situation where I cannot get the date formatted the way I want it using "DateFormat". I read through the docs since things have changed in CF versions, but I honestly can't figure out why this isn't working. It worked beautifully in CF 9. I know it's probably something very easy, but I am just not seeing it.
The query (Oracle DB) provides me a list of the last 30 days and the loop is simply to reformat the date output from "2014-07-01 00:00:00.0" to a more friendly looking display of 01-Jul-2014 except that I cannot get it to format as "dd-mmm-yyyy" it just spits back the original output from the query. I hard coded the date where normally there would be a cfquerparam. Any ideas?
<cfquery name="qryDateArray" datasource="#request.db#">
select trunc(to_date('07/01/2014', 'mm/dd/yyyy') + 1 - rownum) as ref_date
from dual connect by rownum <= 30
</cfquery>
<cfloop from="1" to="#qryDateArray.recordcount#" index="j">
<cfset qryDateArray.ref_date[j] = DateFormat(qryDateArray.ref_date[j], "dd-mmm-yyyy")>
</cfloop>
<cfoutput>
<cfdump var="#qryDateArray#">
</cfoutput>
I could not test this on CF11 since I do not have it handy. I did verify that your code though returns results as you explained when I ran it on my CF10 environment here. So what you can do is add a column to the query object and define it as a varchar and add your formatted data to that. This in turn dumped out the formatted dates.
<cfquery name="qryDateArray" datasource="#request.db#">
select trunc(to_date('07/01/2014', 'mm/dd/yyyy') + 1 - rownum) as ref_date
from dual connect by rownum <= 30
</cfquery>
<cfset aryData = [] />
<cfloop from="1" to="#qryDateArray.recordcount#" index="j">
<cfset ArrayAppend(aryData, DateFormat(qryDateArray.ref_date[j], "dd-mmm-yyyy")) />
</cfloop>
<cfset QueryAddColumn(qryDateArray, "STRDATE", "VarChar", aryData) />
<cfoutput>
<cfdump var="#qryDateArray#">
</cfoutput>
If dependent on the query column names then could use something like Ben's method explained here to do some renaming of the columns: http://www.bennadel.com/blog/357-ask-ben-changing-coldfusion-query-column-names.htm
It'd be great if you'd given us a portable test case rather than one that relies on your database, but I suspect it is because ColdFusion has become more rigid with its type management of query columns.
So CF considers your ref_date column to be of type date, so when you try to put the formatted string back into the query column, CF tries (and succeeds) to convert the string back into a date.
Aside:
I have to wonder why you don't format the data string in the DB from the outset, and just return it the way you need it, rather than returning something else, then looping over the thing to adjust it..?

CFDump of query column does not display all values

The dumping results for the following QoQ are perfectly fine:
<cfquery datasource = "XX.XX.X.XX" name="master2">
SELECT DATE(Timedetail) as FIRSTCONN
, count(Timedetail) as FIRSTOccurances
, EVENTS
FROM MyDatabase
WHERE EVENTS = "FIRST" GROUP BY FIRSTCONN
<!--- LIMIT 0,10 --->;
</cfquery>
<cfdump var="#master2#">
<cfquery dbtype="query" name="detail2">
SELECT *
FROM master2
WHERE FIRSTCONN >= <cfqueryparam value="#startdate#" cfsqltype="cf_sql_date">
AND FIRSTCONN < <cfqueryparam value="#enddate#" cfsqltype="cf_sql_date">;
</cfquery>
Dumping Result: <cfdump var="#detail2#"><cfabort>
However, when I try to use the following check on the QoQ:
Dumping Result: <cfdump var="#detail2.FIRSTCONN#"><cfabort>
I don't see the full list of FIRSTCONN values. Instead I just see one line:
Dumping Result: {ts '2013-06-29 00:00:00'}
Ideally I should see the list of all the FIRSTCONN in my browser, shouldn't I?
You are looking at the default behaviour of coldfusion. When you output or dump queryname.fieldname, and don't specify a row number, you get the value from the first row. If you want to see all the rows, your choices are:
Look at the value list
Output/dump the entire query
Do another q of q for just that column and cfdump it.
Use cfoutput with a query attribute and just output that field
If you are looking to produce the same structured output that cfdump produces when dumping a query, I have two suggestions:
My First Inclination:
<cfdump var="#ListToArray(ValueList(queryName.columnName))#" />
That one is obviously a, very, minor continuation on Dan's suggestion.
The second is available for CF 8+ and it is
Exactly What You Wanted:
<cfdump var="#queryName#" show="columnName"/>
You may specify either columns to display in the output via the show attributes or you can hide specific columns by assigning a value to the hide attribute.
CFAbort in CF Docs
Granted, this post is almost 18 months old but maybe this will help someone that stumbles onto this page.
This is a little off topic, but I'd like to point out that in my instance of CF2016 the cfdump function suppresses the output of columns (and makes them appear empty) that have lots of text in them (or have the option to have lots of text). I'm not sure if it's the nVarChar(max) setting of the table field or what, but in order to see the content of these big fields, I actually have to make a separate query that selects only this one field, and use a separate cfdump in order to see its contents. This is only for debugging purposes, but it will keep you from going crazy and rewriting your update and insert statements over and over (because they appear to not be working all the way)...

Handling CFSELECT

I'm totally unused to Cold Fusion, I'd like to know how to handle a multiple CFSELECT, in particular how to know how many rows I've selected and taking them one by one.
Actually I've managed to see all the rows togheter:
<!--- page_a.cfm --->
<cfform name="fooform" ........>
<cfselect query="myquery" name="fornitori" multiple="yes"></cfselect>
<!--- page_b.cfm --->
<cfoutput>#form.fornitori#</cfoutput>
And, if it's not too much, I'd like to know why it's not correct to write:
<!--- page_b.cfm --->
<cfoutput>#fooform.fornitori#</cfoutput>
Since it is a multiple selection list, the options you select will be submitted to page_b.cfm as a comma delimited list. This means you can use list functions to calculate the total items selected and cfloop to iterate through the selections individually. Note, when using "multiple" select lists, if you select nothing the form field will not exist.
<cfparam name="form.fornitori" default="">
<cfoutput>
Total Items Selected = <cfoutput>#listLen(form.fornitori)#</cfoutput>
Individual Selections:<br>
<cfloop list="#form.fornitori#" index="theSelection">
#theSelection#<br>
</cfloop>
</cfoutput>
why it's not correct to write ..
Because FORM refers to a special system structure, not the name of your html form (ie fooform). FORM contains any form fields submitted via method=POST.
#myquery.recordcount#
btw, use cfdump to display anything. you see some really interesting stuff (I'm not sure whether recordcount is in there though)
getting to the elements:
<cfoutput query="queryname">#title#<br />#content#</cfoutput>
inside the cfoutput you have access to the variables of an element.
coldfusion 9 help

Session Variables, welcome messages

Why does this not work? My welcome message, it just doesn't show up:
<p>Welcome <cfoutput>#Recordset1.UserID#</cfoutput>.</p>
The session variable on the login page I created is:
<cflock timeout=999 scope="Session" type="Exclusive">
<cfset Session.IDUsers =''>
</cflock>
is this incorrect? On the index page where I'm trying to display my welcome message I have:
<cfquery name="Recordset1" datasource="cfGossip">
SELECT *
FROM users
WHERE users.IDUsers = <cfqueryparam value="#Session.IDUsers#">
</cfquery>
I'm not sure if this works, or is necessary?
If you set the userid stored in the session to be the empty string, when you query on it, you will only get users for whom the id is the empty string, which shouldn't be any of them. Therefore, the query is returning an empty set, and your page is (correctly) not displaying a user id.
How are you initially identifying the user? Are you querying against a database when they log in? Are you storing a cookie? Reading Tarot cards? For this to work, at some point, you have to store the correct userid, probably in the session. To do that, you need to first identify who the user is.
Also, if you are using CF6+, you probably do not need the cflock. It is now used to prevent race conditions, as CF is now thread-safe.
Looks like you're just starting with CF, welcome to the community.
My understanding of your code makes the structure look like the following, if I'm understanding you correctly:
<cfset session.idUsers = '' />
<cfquery datasource = "cfgossip" name = "recordset1">
SELECT * FROM USERS WHERE USERS.ID_USERS = <cfqueryparam cfsqltype = "cf_sql_integer" value = "#session.idUsers# />
</cfquery>
<cfoutput>Welcome #recordset1.userID#</cfoutput>
The reason this doesn't work is because your session.idUsers value is blank. Assuming you have a user in your database with an ID_USERS value of 1, you could change the CFSET to look like and it should return results.
Additionally, while it's great to see you using CFQUERYPARAM, I'd recommend including a CFSQLTYPE attribute in the tag whenever possible to provide an added line of defense against injection attacks. You can check out http://livedocs.adobe.com/coldfusion/8/htmldocs/help.html?content=Tags_p-q_18.html to see the list of available types.
Is there anywhere in your code where you set your session.IDUsers? You initialize it as a blank ''. Coldfusion does not populate it for you. The session scope is a place that will remember things for that user that you put there for a specified period of time inactivity, usually 20 minutes. So hopefully, somewhere before you run your query you have additional logic that fills that in, otherwise you are asking the database for a user named, ''.
This is just a point of style, but the following may work better for you:
<cfset Session.IDUsers =''>
<!--- Do something here to populate Session.IDUsers --->
<!--- Creates a blank query - not necessary, but can reduce errors later --->
<cfset Recordset1 = queryNew("UserID")>
<!--- Populate the query from the database --->
<cfquery name="Recordset1" datasource="cfGossip">
SELECT *
FROM users
WHERE users.IDUsers = <cfqueryparam value="#Session.IDUsers#">
</cfquery>
<!--- If the query has data, use it, otherwise show generic message --->
<cfoutput>
<cfif Recordset1.recordcount>
<p>Welcome #Recordset1.UserID#.</p>
<cfelse>
<p>Welcome new user!</p>
</cfif>
</cfoutput>
<!--- OR since we used queryNew("userID"), we can simplify without throwing an error. ---->
<cfoutput>
<p>Welcome <cfif len(Recordset1.userID)>#Recordset1.userID#.<cfelse>new user!</cfif></p>
</cfoutput>
Putting the cfoutput outside the paragraph block will make it easier if you have additional variables to insert into the text. (but will work either way)
Regardless of all that, unless you forgot to share a bit more of the code, I think the issue is that the session.IDUsers is blank and needs to be populated before the query. I hope this helps!