I have a report stored as an .cfm file. I have been able to retrieve it fine with a cffile read. Now I want the option of retrieving only part of the report, say the first 50 lines. I decided to try a fileReadLine():
<cfset repname = url['rep']>
<cfset type = url['type']>
<cfset dataFile = fileOpen("/var/www/reports/moxrep/#repname#.cfm", "read" ) >
<cfset i = 0>
<cfoutput>
<cfloop
condition = "NOT FileIsEOF(dataFile) AND i LT 100">
<cfset i = i + 1>
<cfset inf = fileReadLine( dataFile ) >
#inf#
</cfloop>
</cfoutput>
<cfset fileClose( dataFile ) >
It did not retrieve things at all correctly. The formatting was messed up. All the dynamic data in the report was missing. The CSS links did not operate. And there were many extra blank lines.
Am I doing something wrong? Or is fileReadLine just not meant for retrieving a formatted report? And if not, is there any way to retrieve just part of the report with cffile?
Use cfhttp to get the report, then take that result and strip it down to what you need.
I am not sure you realize that the FileOpen() function is actually reading the raw CFML template and not actually executing the queries that populate your report. Using the CFHTTP tag is definitely a better approach, but be careful because your rendered page is likely to contain all your CSS that would be necessary for the report to render properly so use View Source on your report to see if you want just 50 lines.
The question burning in my mind is "why" do you want just 50 lines? are you previewing the report? it is only 1 page long? Are you embedding it into a dashboard? You may want to consider modifying the .cfm "report" so that the area you want to display elsewhere is wrapped with a specific tag (such as a Span or even something custom) and then when you fetch the report using CFHTTP, then you can parse the results with XMLParse() function (assuming it is properly formatted) and render the section of the report you actually want.
Related
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)...
The code below will generate the file with two notable errors:
The SpreadSheetSetColumnWidth appears to stop working after 21 lines on the second tab
The image does not appear on the second tab
Hopefully this is just a rookie mistake and not something along the lines of the date formatting issue. Any help or constructive criticism to fix/improve would be greatly welcomed.
<!--- We cannot directly reference the image --->
<cfimage source="img/A2LA_Logo.jpg" name="A2LA_Logo">
<!--- We need an absolute path, so get the current directory path. --->
<cfset theFile=GetDirectoryFromPath(GetCurrentTemplatePath()) & "Final_Report.xlsx">
<cfscript>
/*********************************************************************** Page 1 ***********************************************************************/
//Create a new Excel spreadsheet object - SpreadsheetNew("Tab name", "yes=2007+ no=2003");
Tab1 = SpreadsheetNew("Final Report Page 1","yes");
SpreadSheetSetRowHeight(Tab1,1,45);
SpreadsheetSetCellValue(Tab1,"Final Test Report",1,1); SpreadsheetMergeCells(Tab1,1,1,1,10);
SpreadsheetAddImage(Tab1, A2LA_Logo,"jpg","1,12,2,20");
SpreadsheetSetCellValue(Tab1,"Confidential",1,21); SpreadsheetMergeCells(Tab1,1,1,21,30);
</cfscript>
<cfscript>
/*********************************************************************** Page 2 ***********************************************************************/
//Create a new Excel spreadsheet object - SpreadsheetNew("Tab name", "yes=2007+ no=2003");
Tab2 = SpreadsheetNew("Final Report Page 2","yes");
SpreadSheetSetRowHeight(Tab2,1,45);
SpreadsheetSetCellValue(Tab2,"Final Test Report",1,1); SpreadsheetMergeCells(Tab2,1,1,1,10);
SpreadsheetAddImage(Tab1, A2LA_Logo,"jpg","1,12,2,20");
SpreadsheetSetCellValue(Tab2,"Confidential",1,21); SpreadsheetMergeCells(Tab2,1,1,21,30);
</cfscript>
<!--- There must be a better way --->
<cfscript>
for(index=1; index LTE 30; index++) {SpreadSheetSetColumnWidth(Tab1,index,3);}
for(index=1; index LTE 30; index++) {SpreadSheetSetColumnWidth(Tab2,index,3);}
</cfscript>
<!--- Write the spreadsheet to a file, replacing any existing file, then append the other tabs. --->
<cfspreadsheet action="write" filename="#theFile#" name="Tab1" overwrite=true>
<cfspreadsheet action="update" filename="#theFile#" name="Tab2">
<!--- Needs to be at the bottom --->
<cfheader name="Content-disposition" value="attachment;filename=Final_Report.xlsx">
<cfcontent type="application/vnd.openxmlformats-officedocument.spreadsheetml.sheet" file="#theFile#">
<!--- Clean up your mess after it is served to the browser --->
<cffile action="delete" file="#theFile#">
(From the comments)
The images show up when saved separately. So I am guessing it is an update bug. My usual recommendation is "do not use update if you can avoid it". Create a single workbook, add multiple sheets and save it with a single write action.
Update: As for why, in your original code, you are creating two separate workbook objects. Conceptually think of it like creating two separate Excel files, with one sheet each. Then trying to merge them into one file:
c:/path/to/MyWorkbookNamedTab1.xlsx
| Sheet1 /
c:/path/to/MyWorkbookNamedTab2.xlsx
| Sheet1 /
That is different than creating a single workbook, with multiple sheets (like in the link above):
c:/path/to/MySingleWorkbook.xlsx
| Sheet1 / Sheet2 /
There is no easy way to merge separate files (or workbooks). You basically have to copy everything from one workbook into another (which is a lot more involved than it sounds). That is what action=update does. Somewhere in the copying process it loses one of the images. I am not sure if it that is due to a CF bug one in POI.
In any case, the simplest solution is to avoid the need for copying altogether. If you stick with a single workbook (and add multiple sheets to it) then there is no need for copying or merging. Everything is already contained in one workbook. So all action=write has to do is save it to disk, exactly "as is".
I have a query which I'd like to output in a spreadsheet in Excel. I'd like some of the cell columns to be formatted in a certain way, which is thousands grouping and in Number format so that sums, additions etc can be done on that row without any further alteration.
I have read through the documentation but it has left me a bit confused on how to output to Excel in the first place.
I started out with a comment but it will be easier to read as an answer.
What have you tried? Have you read through the CFSpreadsheet documentation? Should be pretty straight forward. One of the parameters to the CFSpreadsheet tag is 'query'. Why not start with that and see how it formats the columns for you by default to see what needs tweaking.
Here is an example taken directly from the referenced documentation page:
<cfquery name="courses" datasource="cfdocexamples">
SELECT CORNUMBER, DEPT_ID, COURSE_ID, CORNAME
FROM COURSELIST
</cfquery>
<cfscript>
//Use an absolute path for the files. --->
theDir=GetDirectoryFromPath(GetCurrentTemplatePath());
theFile=theDir & "courses.xls";
//Create an empty ColdFusion spreadsheet object. --->
theSheet = SpreadsheetNew("CourseData");
//Populate the object with a query. --->
SpreadsheetAddRows(theSheet,courses);
</cfscript>
<!--- Write the sheet to a file --->
<cfspreadsheet action="write" filename="#theFile#" name="theSheet" sheetname="courses" overwrite=true>
See the documentation for SpreadsheetFormatColumn, SpreadsheetFormatColumns, SpreadsheetFormatRow and SpreadsheetFormatRows to read about formatting particular cells.
You just need to use the cfspreadsheet tag to create the file, and you can format the cells with the spreadsheetFormat* functions. You can find an example of how to do this at Ray Camden's site.
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
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!