JSFoundSetUpdater
Methods Summary
Type | Name | Summary |
---|---|---|
Go to next record in this updater, returns true if successful.. | ||
Do the actual update in the database, returns true if successful.. | ||
void | Start over with this iterator 'next' function (at the foundset selected record).. | |
Set the column value to update, returns true if successful.. |
Methods Details
next()
Go to next record in this updater, returns true if successful. NOTE: this method doesn't take into account deletes and inserts that may happen at same time. For more reliable iterator see foundset.forEach
Returns Boolean true if proceeded to next record, false otherwise
Sample
performUpdate()
Do the actual update in the database, returns true if successful. It will first try to save all editing records (from all foundsets), if cannot save will return false before doing the update. There are 3 types of possible use with the foundset updater
update entire foundset by a single sql statement; that is not possible when the table of the foundset has tracking enabled then it will loop over the whole foundset. When a single sql statement is done, modification columns will not be updated and associated Table Events won't be triggered, because it does the update directly in the database, without getting the records. NOTE: this mode will refresh all foundsets based on same datasource
update part of foundset, for example the first 4 row (starts with selected row)
safely loop through foundset (starts with selected row)
after the perform update call there are no records in edit mode, that where not already in edit mode, because all of them are saved directly to the database, or in mode 1 the records are not touched at all and the database is updated directly.
Returns Boolean true if succeeded, false if failed.
Sample
resetIterator()
Start over with this iterator 'next' function (at the foundset selected record).
Returns void
Sample
setColumn(name, value)
Set the column value to update, returns true if successful.
Parameters String name The name of the column to update. Object value The new value (can be an array with data for x number of rows) to be stored in the specified column.
Returns Boolean true if succeeded, false if failed.
Sample
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