New upstream version 4.0.2upstream/4.0.2

1 files changed, 282 insertions, 0 deletions

diff --git a/src/examples/xb_ex_v3_upd_dbf.cpp b/src/examples/xb_ex_v3_upd_dbf.cpp
new file mode 100755
index 0000000..aa6ec49
--- /dev/null
+++ b/src/examples/xb_ex_v3_upd_dbf.cpp
@@ -0,0 +1,282 @@
+/*  xb_ex_v3_upd_dbf.cpp
+
+XBase64 Software Library
+
+Copyright (c) 1997,2003,2014,2021,2022 Gary A Kunkel
+
+The xb64 software library is covered under the terms of the GPL Version 3, 2007 license.
+
+Email Contact:
+
+    XDB-devel@lists.sourceforge.net
+    XDB-users@lists.sourceforge.net
+
+    This example demonstrates how to open the DBase III table created by xb_ex_v3_create_dbf
+    and apply various updates to the table.
+
+*/
+
+#include <xbase.h>
+
+using namespace xb;
+
+int main()
+{
+
+#ifdef XB_DBF3_SUPPORT
+
+  xbInt16  fld_FIRSTNAME;
+  xbInt16  fld_LASTNAME;
+  xbInt16  fld_BIRTHDATE;
+  xbInt16  fld_AMOUNT;
+  xbInt16  fld_RETIRED;
+  xbInt16  fld_ZIPCODE;
+
+  #ifdef XB_MEMO_SUPPORT
+  xbInt16  fld_MEMO1;
+  xbString sMemoData;
+  #endif
+
+
+  /* define the classes */
+  xbXBase x;                                /* initialize xbase             */
+  x.SetDataDirectory( PROJECT_DATA_DIR );   /* where all the tables live    */
+  x.EnableMsgLogging();
+  x.WriteLogMessage( "Program [xb_ex_v3_upd_dbf] initializing..." );
+
+
+  xbDbf * MyTable = new xbDbf3( &x );                            /* class for V3 table */
+
+  xbInt16 iRc = 0;
+  xbInt16 iErrorStop = 0;
+
+  try{
+
+    if(( iRc = MyTable->Open( "MyV3Table1.DBF" )) != XB_NO_ERROR ){
+      iErrorStop = 1;
+      throw iRc;
+    }
+
+    #ifdef XB_NDX_SUPPORT
+    // V3 NDX style indices can be opened manually  (vs production MDX index files opened automatically)
+    if(( iRc = MyTable->OpenIndex( "NDX", "MYINDEX1.NDX")) != XB_NO_ERROR ){
+      iErrorStop = 2;
+      throw iRc;
+    }
+    if(( iRc = MyTable->OpenIndex( "NDX", "MYINDEX2.NDX" )) != XB_NO_ERROR ){
+      iErrorStop = 3;
+      throw iRc;
+    }
+    if(( iRc = MyTable->OpenIndex( "NDX", "MYINDEX3.NDX" )) != XB_NO_ERROR ){ 
+      iErrorStop = 4;
+      throw iRc;
+    }
+    std::cout << "Current tag = [" << MyTable->GetCurTagName().Str() << "]\n";
+    #endif
+
+
+
+    // get the field numbers for all the fields in the table
+    fld_FIRSTNAME = MyTable->GetFieldNo( "FIRSTNAME" );
+    fld_LASTNAME  = MyTable->GetFieldNo( "LASTNAME" );
+    fld_BIRTHDATE = MyTable->GetFieldNo( "BIRTHDATE" );
+    fld_AMOUNT    = MyTable->GetFieldNo( "AMOUNT" );
+    fld_RETIRED   = MyTable->GetFieldNo( "RETIRED?" );
+    fld_ZIPCODE   = MyTable->GetFieldNo( "ZIPCODE" );
+
+    #ifdef XB_MEMO_SUPPORT
+    fld_MEMO1     = MyTable->GetFieldNo( "MEMO1" );
+    #endif
+
+
+    // Blank the record buffer
+    if(( iRc = MyTable->BlankRecord()) != XB_NO_ERROR ){
+      iErrorStop = 7;
+      throw iRc;
+    }
+
+    // put field examples - using field numbers
+    if(( iRc = MyTable->PutField( fld_LASTNAME, "JONES" )) != XB_NO_ERROR ){
+      iErrorStop = 8;
+      throw iRc;
+    }
+
+    if(( iRc = MyTable->PutField( fld_FIRSTNAME, "JERRY" )) != XB_NO_ERROR ){
+      iErrorStop = 9;
+      throw iRc;
+    }
+
+    if(( iRc = MyTable->PutField( fld_AMOUNT, "12.35" )) != XB_NO_ERROR ){
+      iErrorStop = 10;
+      throw iRc;
+    }
+
+    if(( iRc = MyTable->PutField( fld_BIRTHDATE, "19880208" )) != XB_NO_ERROR ){
+      iErrorStop = 10;
+      throw iRc;
+    }
+
+    if(( iRc = MyTable->PutLogicalField( fld_RETIRED, "Y" )) != XB_NO_ERROR ){
+      iErrorStop = 11;
+      throw iRc;
+    }
+
+    if(( iRc = MyTable->PutLongField( fld_ZIPCODE, 12345 )) != XB_NO_ERROR ){
+      iErrorStop = 12;
+      throw iRc;
+    }
+
+    #ifdef XB_MEMO_SUPPORT
+    sMemoData = "Memo data record 1";
+    if(( iRc = MyTable->UpdateMemoField( fld_MEMO1, sMemoData )) != XB_NO_ERROR ){
+      iErrorStop = 13;
+      throw iRc;
+    }
+    #endif
+
+    // Append the first record
+    if(( iRc = MyTable->AppendRecord()) != XB_NO_ERROR ){
+      iErrorStop = 15;
+      throw iRc;
+    }
+
+    // put field to the record buffer using field name (slightly less efficient than using field numbers)
+
+    // Blank the record buffer
+    if(( iRc = MyTable->BlankRecord()) != XB_NO_ERROR ){
+      iErrorStop = 20;
+      throw iRc;
+    }
+
+    if(( iRc = MyTable->PutField( "LASTNAME", "EINSTIEN" )) != XB_NO_ERROR ){
+      iErrorStop = 21;
+      throw iRc;
+    }
+
+    if(( iRc = MyTable->PutField( "FIRSTNAME", "ALBERT" )) != XB_NO_ERROR ){
+      iErrorStop = 22;
+      throw iRc;
+    }
+
+    if(( iRc = MyTable->PutField( "AMOUNT", "987.55" )) != XB_NO_ERROR ){
+      iErrorStop = 23;
+      throw iRc;
+    }
+
+    if(( iRc = MyTable->PutField( fld_BIRTHDATE, "19890209" )) != XB_NO_ERROR ){
+      iErrorStop = 24;
+      throw iRc;
+    }
+
+    if(( iRc = MyTable->PutLogicalField( "RETIRED?", "N" )) != XB_NO_ERROR ){
+      iErrorStop = 25;
+      throw iRc;
+    }
+
+    if(( iRc = MyTable->PutLongField( "ZIPCODE", 44256 )) != XB_NO_ERROR ){
+      iErrorStop = 26;
+      throw iRc;
+    }
+
+    #ifdef XB_MEMO_SUPPORT
+    sMemoData = "Memo data record 2";
+    if(( iRc = MyTable->UpdateMemoField( fld_MEMO1, sMemoData )) != XB_NO_ERROR ){
+      iErrorStop = 27;
+      throw iRc;
+    }
+    #endif
+
+    // Append the second record 
+    if(( iRc = MyTable->AppendRecord()) != XB_NO_ERROR ){
+      iErrorStop = 30;
+      throw iRc;
+    }
+
+    // get a field with a field number
+    xbString FirstName;
+    if(( iRc = MyTable->GetField( fld_FIRSTNAME, FirstName )) < 0 ){
+      iErrorStop = 40;
+      throw iRc;
+    }
+    std::cout << "First Name is [" << FirstName.Str() << "]" << std::endl;
+
+    xbString LastName;
+    if(( iRc = MyTable->GetField( "LASTNAME", LastName )) < 0 ){
+      iErrorStop = 41;
+      throw iRc;
+    }
+    std::cout << "Last Name is [" << LastName.Str() << "]" << std::endl;
+
+    xbInt16 iNoOfDecimals;
+    if(( iRc = MyTable->GetFieldDecimal( "AMOUNT", iNoOfDecimals )) != XB_NO_ERROR ){
+      iErrorStop = 42;
+      throw iRc;
+    }
+    std::cout << "There are " << iNoOfDecimals << " decimals in the AMOUNT field" << std::endl;
+
+    xbString FieldName;
+    if(( iRc = MyTable->GetFieldName( 4, FieldName )) != XB_NO_ERROR ){
+      iErrorStop = 43;
+      throw iRc;
+    }
+    std::cout << "Field #4 name is " << FieldName.Str() << std::endl;
+
+    xbString sRetired;
+    if(( iRc = MyTable->GetLogicalField( "RETIRED?", sRetired )) < 0 ){
+      iErrorStop = 45;
+      throw iRc;
+    }
+    std::cout << "Switch value = [" << sRetired.Str() << "]" << std::endl;
+
+    xbInt32 lZip;
+    if(( iRc = MyTable->GetLongField( "ZIPCODE", lZip )) < 0  ){
+      iErrorStop = 46;
+      throw iRc;
+    }
+    std::cout << "Long value = [" << lZip << "]" << std::endl;
+
+    // Initialize the record buffer in preparation for another record
+    if(( iRc = MyTable->BlankRecord()) != XB_NO_ERROR ){
+      iErrorStop = 48;
+      throw iRc;
+    }
+
+    // Append another record (it will be blank)
+    if(( iRc = MyTable->AppendRecord()) != XB_NO_ERROR ){
+      iErrorStop = 49;
+      throw iRc;
+    };
+
+    // mark current record for deletion
+    if(( iRc = MyTable->DeleteRecord()) != XB_NO_ERROR ){
+      iErrorStop = 50;
+      throw iRc;
+    };
+
+    // save current record
+    if(( iRc = MyTable->PutRecord()) != XB_NO_ERROR ){
+      iErrorStop = 51;
+      throw iRc;
+    }
+    // pack the table with no options
+    if(( iRc = MyTable->Pack()) != XB_NO_ERROR ){
+      iErrorStop = 52;
+      throw iRc;
+    }
+
+    /* Close database and associated indexes */
+    if(( iRc = MyTable->Close())   != XB_NO_ERROR ){
+      iErrorStop = 53;
+      throw iRc;
+    }
+
+  }
+  catch( xbInt16 rc ){
+    std::cout << "xb_ex_v3_upd_dbf error.  Error stop point = [" << iErrorStop << "] iRc = [" << rc << "]" << std::endl;
+    std::cout << x.GetErrorMessage( rc ) << std::endl;
+  }
+
+#endif // XB_DBF3_SUPPORT
+
+  return 0;
+}