Reputation: 14133
Im new to foxpro and it
s work areas are something i dont really don
t get so that`s likely where the problem is.
Basically i have a form that takes 2 .csv files and puts them into foxpro tables.
I get a run time error at the last line of this, can anyone see the problem?
web_file = Thisform.mcFile
web_file2 = thisform.mcfile2
web_letter = Thisform.mcLetter
web_gl = Thisform.mcGl
web_gl2 = Thisform.mcGl2
Set Date To Dmy
Close Data
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
mcFile = Thisform.mcFile
mcFile2 = Thisform.mcFile2
Wait Clear
If File("web_temp.dbf")
Delete File web_temp.Dbf
Endif
Create Table web_temp (;
email1 C(40),;
opentime1 C(40),;
o2idnumb1 C(10))
Use
Select 0
USE web_temp Exclusive
Append From &web_file Delim
If File("web_temp2.dbf")
Delete File web_temp2.Dbf
Endif
Create Table web_temp2 (;
email C(40),;
opentime C(40),;
o2idnumb C(10))
Use
Select 0
USE web_temp2 Exclusive
APPEND FROM &web_file2 Delim
Also, im not the original author, im the maintenance guy. so if things look weird its because ive been using his code without really understanding it.
Upvotes: 0
Views: 6402
Reputation: 48139
Yup, looks like very old code but let me try to help you understand what is going on...
*/ create local memory variables (web_file, web_file2, etc) from properties
*/ that exist on the form (Thisform.mcFile, Thisform.mcFile2) No problems here
web_file = Thisform.mcFile
web_file2 = thisform.mcfile2
web_letter = Thisform.mcLetter
web_gl = Thisform.mcGl
web_gl2 = Thisform.mcGl2
*/ If doing an import of data that is "Date" based, Foxpro will expect it in
*/ Day Month Year format, but you don't appear to be doing anything with it
*/ during your import of CSV file
Set Date To Dmy
*/ Close database(s) that may be open
Close Data
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
*/ Does the exact same as above with "web_file" and "web_file2",
*/ so you now have two variables each with exact same values...
mcFile = Thisform.mcFile
mcFile2 = Thisform.mcFile2
*/ clear the "wait" window
Wait Clear
*/ Look to see if there is an old version of "Web_Temp.dbf", if so,
*/ delete it and recreate it with the provided "create table" structure.
If File("web_temp.dbf")
Delete File web_temp.Dbf
Endif
Create Table web_temp (;
email1 C(40),;
opentime1 C(40),;
o2idnumb1 C(10))
*/ These three lines are not needed. When you "CREATE TABLE", you are
*/ explicitly STARTING the file in exclusive mode, no need to close
*/ and re-open exclusively.
Use
Select 0
USE web_temp Exclusive
*/ Take the content from the file by the name found in the variable "web_file".
*/ This could cause a problem if the file has embedded spaces in the name...
*/ the preferred method is to use ( parens ). The expectation of "Delim" is
*/ that the file is comma delimited between each expected column name
&& Append From &web_file Delim
Append from (web_file) Delim
*/ Do the same here, but for the second file going into a second
*/ "Temp" table for processing
If File("web_temp2.dbf")
Delete File web_temp2.Dbf
Endif
Create Table web_temp2 (;
email C(40),;
opentime C(40),;
o2idnumb C(10))
*/ Again, dont need this
Use
Select 0
USE web_temp2 Exclusive
&& APPEND FROM &web_file2 Delim
append from (web_file2) Delim
Now, all that said, here is some super shortcuts for you, especially if these are in fact temporary tables that you would otherwise be "discarding" when finished...
*/ The above doesn't confirm expected files exist, so I would pre-check
if not file( Thisform.mcFile )
messagebox( "Sorry, the file " + Thisform.mcFile + " does not exist" )
return
endif
if not file( Thisform.mcFile2 )
messagebox( "Sorry, the file " + Thisform.mcFile2 + " does not exist" )
return
endif
*/ In case a cursor/table is already open by the name "Web_Temp", close it
use in select( "Web_Temp" )
*/ Create a new table (temporary table that automatically
*/ erases itself when closed when you are finished with it
create cursor Web_Temp (;
email1 C(40),;
opentime1 C(40),;
o2idnumb1 C(10))
*/ Append from the file as before
append from ( Thisform.mcFile ) delim
*/ Go to another "work area" VFP allows up to 65535 different work areas, but if you
*/ ever needed that many tables open simultaneously, you have bigger problems.
select 0
*/ Same here, but for your SECOND table
use in select( "Web_Temp2" )
Create cursor web_temp2 (;
email C(40),;
opentime C(40),;
o2idnumb C(10))
*/ Append from the file as before
append from ( Thisform.mcFile2 ) delim
*/ Done, continue with rest
If you have a file that is underlying as hex values, they'll just be pulled-in verbatim as would be seen in a notepad editor. (or via MODIFY COMMAND NameOfTheFile) from within VFP
Upvotes: 3