func (tr *Transaction) Update(t *table.Table, rowNumber int, row map[string]string) int {
// Execute "before update" triggers.
beforeTable, status := tr.DB.Get("~before")
if status != st.OK {
return status
}
original, status := t.Read(rowNumber)
if status != st.OK {
return status
}
triggerRA := ra.New()
_, status = triggerRA.Load(beforeTable)
if status != st.OK {
return status
}
_, status = triggerRA.Select("TABLE", filter.Eq{}, t.Name)
if status != st.OK {
return status
}
status = trigger.ExecuteTrigger(tr.DB, t, triggerRA, "UP", row, original)
if status != st.OK {
return status
}
// Update the row.
status = t.Update(rowNumber, row)
if status != st.OK {
return status
}
// Execute "after update" triggers.
afterTable, status := tr.DB.Get("~after")
if status != st.OK {
return status
}
triggerRA = ra.New()
_, status = triggerRA.Load(afterTable)
if status != st.OK {
return status
}
_, status = triggerRA.Select("TABLE", filter.Eq{}, t.Name)
if status != st.OK {
return status
}
status = trigger.ExecuteTrigger(tr.DB, t, triggerRA, "UP", row, original)
if status != st.OK {
return status
}
// Log the updated row.
tr.Log(&UndoUpdate{t, rowNumber, original})
return st.OK
}
