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xml import

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    #1

    xml import

    The attachment is a cobbled together effort during an attempt to study and practice with the extract_string() function. While it is functional it would greatly benefit from someone else's polishing and extension.

    To use this script first use table.xml_export(), on a table with some combination of character, numeric, date, logical, and plain text memo fields, to create an .xml file. (alternatively only export those field types with the optional parameters)

    Next run this script, navigate to the recently created .xml file and then supply a new table name.

    The newly named table should be created, added to the current database, and should contain the records from the original table.

    As it exists it will only parse an xml file created within Alpha. Maybe someone else can make it do more.
    Last edited by Stan Mathews; 03-28-2006, 03:24 PM.
    There can be only one.
    Tags: None
    #2
    Stan,

    I think you meant to post a different script. You inadvertantly posted my Excel to DBF script that is in another thread. But thanks for thinking of me... :-).

    Bill.

    Comment

      #3
      sure did

      Originally posted by Bill Parker
      Stan,

      I think you meant to post a different script. You inadvertantly posted my Excel to DBF script that is in another thread. But thanks for thinking of me... :-).

      Bill.
      Trying again.

      Thanks for straightening me out.
      Last edited by Stan Mathews; 03-28-2006, 03:24 PM.
      There can be only one.

      Comment

        #4
        Originally posted by Stan Mathews
        Trying again.

        Thanks for straightening me out.
        And finally, the script.

        Code:
        'Date Created: 03-Mar-2006 02:01:54 PM
'Last Updated: 03-Mar-2006 03:23:58 PM
'Created By  : Stan Mathews
'Updated By  : Stan Mathews
'can be used in conjunction with table.xml_export()
'as in TABLE.XML_EXPORT("cat_prc","c:\test\cat_prc.xml")
'then run this script, navigating to "c:\test\cat_prc.xml"
'you will be prompted for the table name to create from the xml and
'that table will be added to the current database
filn = ui_get_file("Choose xml file","XML(*.xml)","","X")
IF filn > ""
	fil = file.open(filn,FILE_RW_EXCLUSIVE)
ELSE
	end
END IF
a_tbl = ui_get_file("Choose new table name","Table(*.dbf)"," ","N")
IF a_tbl = ""
	fil.close()
	end
END IF
flds_count = 0
line = fil.read_line()
line = fil.read_line()
line = fil.read_line()
tst1 = "<field" $ line .or. "</field" $ line
WHILE tst1
	IF alltrim(extract_string(line,"<",">")) = "field_name"
		flds_count = flds_count + 1
	END IF
	line = fil.read_line()
	tst1 = "<field" $ line .or. "</field" $ line .or. line = ""
END WHILE
'ui_msg_box("",""+flds_count)
line = fil.read_line()
line = fil.read_line()
line = fil.read_line()
rec_count = 0
tst2 = "<record" $ line .or. "</field" $ line .or. "<value" $ line
WHILE tst2
	IF left(alltrim(line),6) = "<value"
		rec_count = rec_count + 1
	END IF
	line = fil.read_line()
	tst2 = "<record" $ line .or. "</record" $ line .or. "<value" $ line .or. line = ""
END WHILE
rec_count =  rec_count/flds_count
'ui_msg_box("",""+rec_count)
fil.close()
fil = file.open(filn,FILE_RW_EXCLUSIVE)
FOR i = 1 TO 2
	line = fil.read_line()
NEXT i
IF line = "<a5_field_name_list>"
	FOR i = 1 TO 2
		line = fil.read_line()
	NEXT i
	dim fld_name[flds_count] as C
	dim fld_type[flds_count] as C
	dim fld_width[flds_count] as C
	dim fld_dec[flds_count] as C
	dim def[flds_count] as C
	dim tbl_def as C
	tbl_def = ""
	FOR i = 1 TO flds_count
		fld_name[i] = alltrim(extract_string(line,"<field_name>","</field_name>"))
		line = fil.read_line()
		fld_type[i] = alltrim(extract_string(line,"<field_type>","</field_type>"))
		line = fil.read_line()
		fld_width[i] = alltrim(extract_string(line,"<field_width>","</field_width>"))
		line = fil.read_line()
		fld_dec[i] = alltrim(extract_string(line,"<field_dec_places>","</field_dec_places>"))
		def[i] = fld_name[i]+","+fld_type[i]+","+fld_width[i]+","+fld_dec[i]
		tbl_def = tbl_def+crlf()+def[i]
		line = fil.read_line()
		WHILE alltrim(extract_string(line,"<",">")) <> "field_name" \
			.and. (alltrim(extract_string(line,"<",">")) <> "/a5_field_name_list")
			line = fil.read_line()
		END WHILE
	NEXT i
END IF
tbl_def = remove_blank_lines(tbl_def)
valid = create_table(a_tbl,tbl_def)
file_add_to_db(a_tbl+".dbf")
line = fil.read_line()
line = fil.read_line()
line = fil.read_line()
line = fil.read_line()

FOR i = 1 TO flds_count
	dim val[i] as fld_type[i]
NEXT i
tbl = table.open(a_tbl,FILE_RW_EXCLUSIVE)
dim f[flds_count] as c
dim	fld_ptr[flds_count] as P
FOR x = 1 TO flds_count
	fld_ptr[x].fldnm = tbl.field_get(fld_name[x])
NEXT x
FOR i = 1 TO rec_count
	FOR m = 1 TO flds_count
		f[m] = alltrim(extract_string(line,"<value>","</value>"))
		line = fil.read_line()
	NEXT m
	tbl.enter_begin()
	FOR r = 1 TO flds_count
		fld_ptr[r].fldnm.value_put(convert_type(f[r],fld_type[r]))
	NEXT r
	tbl.enter_end(.t.)
	WHILE alltrim(extract_string(line,"<",">")) <> "value" .and. \
		alltrim(extract_string(line,"<",">")) <> "/a5_record_set"
		line = fil.read_line()
	END WHILE
NEXT i
tbl.close()
fil.close()
        There can be only one.

        Comment

          #5
          Re: xml import

          Hello Stan;

          I tried running this script and I get the following error:




          The code creates a DBF file, but no data is in the table.

          Any ideas?

          thx, awj



          Code:
          'Date Created: 03-Mar-2006 02:01:54 PM
'Last Updated: 03-Mar-2006 03:23:58 PM
'Created By  : Stan Mathews
'Updated By  : Stan Mathews
'can be used in conjunction with table.xml_export()
'as in TABLE.XML_EXPORT("cat_prc","c:\test\cat_prc.xml")
'then run this script, navigating to "c:\test\cat_prc.xml"
'you will be prompted for the table name to create from the xml and
'that table will be added to the current database
filn = ui_get_file("Choose xml file","XML(*.xml)","","X")
IF filn > ""
    fil = file.open(filn,FILE_RW_EXCLUSIVE)
ELSE
    end
END IF
a_tbl = ui_get_file("Choose new table name","Table(*.dbf)"," ","N")
IF a_tbl = ""
    fil.close()
    end
END IF
flds_count = 0
line = fil.read_line()
line = fil.read_line()
line = fil.read_line()
tst1 = "<field" $ line .or. "</field" $ line
WHILE tst1
    IF alltrim(extract_string(line,"<",">")) = "field_name"
        flds_count = flds_count + 1
    END IF
    line = fil.read_line()
    tst1 = "<field" $ line .or. "</field" $ line .or. line = ""
END WHILE
'ui_msg_box("",""+flds_count)
line = fil.read_line()
line = fil.read_line()
line = fil.read_line()
rec_count = 0
tst2 = "<record" $ line .or. "</field" $ line .or. "<value" $ line
WHILE tst2
    IF left(alltrim(line),6) = "<value"
        rec_count = rec_count + 1
    END IF
    line = fil.read_line()
    tst2 = "<record" $ line .or. "</record" $ line .or. "<value" $ line .or. line = ""
END WHILE
rec_count =  rec_count/flds_count
'ui_msg_box("",""+rec_count)
fil.close()
fil = file.open(filn,FILE_RW_EXCLUSIVE)
FOR i = 1 TO 2
    line = fil.read_line()
NEXT i
IF line = "<a5_field_name_list>"
    FOR i = 1 TO 2
        line = fil.read_line()
    NEXT i
    dim fld_name[flds_count] as C
    dim fld_type[flds_count] as C
    dim fld_width[flds_count] as C
    dim fld_dec[flds_count] as C
    dim def[flds_count] as C
    dim tbl_def as C
    tbl_def = ""
    FOR i = 1 TO flds_count
        fld_name[i] = alltrim(extract_string(line,"<field_name>","</field_name>"))
        line = fil.read_line()
        fld_type[i] = alltrim(extract_string(line,"<field_type>","</field_type>"))
        line = fil.read_line()
        fld_width[i] = alltrim(extract_string(line,"<field_width>","</field_width>"))
        line = fil.read_line()
        fld_dec[i] = alltrim(extract_string(line,"<field_dec_places>","</field_dec_places>"))
        def[i] = fld_name[i]+","+fld_type[i]+","+fld_width[i]+","+fld_dec[i]
        tbl_def = tbl_def+crlf()+def[i]
        line = fil.read_line()
        WHILE alltrim(extract_string(line,"<",">")) <> "field_name" \
            .and. (alltrim(extract_string(line,"<",">")) <> "/a5_field_name_list")
            line = fil.read_line()
        END WHILE
    NEXT i
END IF
tbl_def = remove_blank_lines(tbl_def)
valid = create_table(a_tbl,tbl_def)
file_add_to_db(a_tbl+".dbf")
line = fil.read_line()
line = fil.read_line()
line = fil.read_line()
line = fil.read_line()
 
FOR i = 1 TO flds_count
    dim val[i] as fld_type[i]
NEXT i
tbl = table.open(a_tbl,FILE_RW_EXCLUSIVE)
dim f[flds_count] as c
dim    fld_ptr[flds_count] as P
FOR x = 1 TO flds_count
    fld_ptr[x].fldnm = tbl.field_get(fld_name[x])
NEXT x
FOR i = 1 TO rec_count
    FOR m = 1 TO flds_count
        f[m] = alltrim(extract_string(line,"<value>","</value>"))
        line = fil.read_line()
    NEXT m
    tbl.enter_begin()
    FOR r = 1 TO flds_count
        fld_ptr[r].fldnm.value_put(convert_type(f[r],fld_type[r]))
    NEXT r
    tbl.enter_end(.t.)
    WHILE alltrim(extract_string(line,"<",">")) <> "value" .and. \
        alltrim(extract_string(line,"<",">")) <> "/a5_record_set"
        line = fil.read_line()
    END WHILE
NEXT i
tbl.close()
fil.close()
          [/quote]

          Comment

            #6
            Re: xml import

            I just ran it here on the attached table. I'd be glad to look at the table you are working with to see if I have missed something.
            There can be only one.

            Comment

              #7
              Re: xml import

              Originally posted by Stan Mathews
              I just ran it here on the attached table. I'd be glad to look at the table you are working with to see if I have missed something.
              I did experiment a bit and even found that the table.xml_export() creates a non-displayable file (error shown in attachment) when the table contains a jpg image field (not a reference). The data where the export stumbles is �.

              I imagine something of the same type is happening with your table during import.
              There can be only one.

              Comment

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