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Klik op het logo voor hulp op afstand
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Database objects - interfacing the JoPPS database |
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The database object classes can be used to:
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iterate through the different databasetables of the selected JoPPS database
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find, delete, edit or insert records
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export and/or import data using JoPPS-Script
A database object interfaces with an underlaying table. It has an in-memory recordbuffer holding
the field values for the current record.
The recordbuffer can be used to:
Database objects: An example
The following example prompts the user to enter the code for an action and add it to each filling record in the filling table.
new_action := AskStr('Specify action code..','','',32);
IF new_action = '' THEN halt;
f := filling.Create(); /* instanciate filling table object */
f.First(); /* position at first record */
WHILE !f.Eof DO /* iterate till at end of file */
{
i := 0;
WHILE i < 10 DO
{
IF Trim(f.action[i].Code.Code)='' THEN
{
f.action[i].Code.Code := new_action;
f.Action[i].Reference := 3;
BREAK;
};
i := i + 1;
};
f.Edit(); /* change the record */
f.Next(); /* position at next record */
};
f.Free();
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Constructor
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CREATE ( ? )
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Destructor
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FREE ()
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Methods
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ADDFIELD
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ADDINDEX
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APPEND
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CANCEL
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CANCELRANGE
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CLEARFIELDS
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CLOSE
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CREATETABLE
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DELETE
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DELETETABLE
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EDIT
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EMPTYTABLE
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FINDKEY
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FINDNEAREST
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FIRST
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INSERT
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LAST
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LOCATE
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MOVEBY
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NEXT
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OPEN
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OPENEXCLUSIVE
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POST
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PRIOR
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REFRESH
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RENAMETABLE
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SETRANGE
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Properties
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ACTIVE
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BOF
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CANMODIFY
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DATABASENAME
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EOF
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EXCLUSIVE
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EXISTS
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FIELD
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FIELDCOUNT
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FILTER
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FILTERED
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FILTEROPTIONS
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INDEXNAME
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ISEMPTY
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READONLY
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RECORDCOUNT
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STATE
TABLESTATE_INACTIVE
TABLESTATE_BROWSE
TABLESTATE_EDIT
TABLESTATE_INSERT
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table is not active (closed)
table in browse modus
table in edit mode
table in edit mode (insert new record)
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TABLENAME
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TABLEPATH
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TABLETYPE
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To be documented
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History
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