[reportlab-users] Flowing onto second column

[Robin Becker]

Jim Steil wrote:

> Tim Roberts wrote:

>> Jim Steil wrote:

>>>

>>> Is there an easy way to get data to flow to a second column the way 

>>> you can get it to flow to multiple pages with Platypus?

>>

>> Sure.  You just create multiple frames, one for each column, and add 

>> the collection of frames when you create the PageTemplate.

>>

>> Here's a web page that shows an example:

>>    http://www.hoboes.com/Mimsy/?ART=558

>>

> Ok, I'm trying to get my report working per the instructions at the link 

> above.  However, I've changed it a bit because instead of having 

> paragraphs display in my columns, I have tables that I want to snake 

> around the columns.  So, where this doc refers to paragraphs in the 

> 'items' list, I'm appending tables.  But, when I get to the 

> document.build(posts) statement, I get the following dump:

> 

> Traceback (most recent call last):

>  File "C:\PyWork\Motion\motion\utility\priceSheet.py", line 187, in 

> <module>

>    priceSheets(filename)

>  File "C:\PyWork\Motion\motion\utility\priceSheet.py", line 178, in 

> priceSheets

>    go(doc, c)

>  File "C:\PyWork\Motion\motion\utility\priceSheet.py", line 167, in go

>    doc.build(allData)

>  File "c:\python25\lib\site-packages\reportlab\platypus\doctemplate.py", 

> line 749, in build

>    tr.srcFile,

> AttributeError: Field instance has no attribute 'srcFile'

> 

> I'm stumped as to where I should look for the problem.  Can anyone give 

> me any clues?

.......
well tr is obtained because the erroneous flowable was given some sort of 
_traceInfo. That should be an object with the following attributes

srcFile,startLineNo,endLineNo,endLinePos

if it doesn't have those attributes then an error will result. I don't think 
there's any way that _traceInfo can be non None unless it's being set somewhere 
deliberately. Just create a tracing class and use that instead of a simple 
string or whatever. I suppose we could consider allowing _traceInfo to be a 
simple string of your choosing and using that rather than a structured object. I 
have to confess I know little (or perhaps have forgotten) about this code. I 
suspect in the modern world we'd just make _traceInfo something with a __str__ 
method (or a str).
-- 
Robin Becker