MiniVend databases can be written in the normal course of events, either
using the [import ...] tag or with a tag like
[data table=table column=field key=code value=new-value].
If you wish to control writing of a global database, or to a certain catalog within a series of subcatalogs, or make one read only, you can do so.
To enable write control:
Database products WRITE_CONTROL 1
Once that is done, you can make a database read only, which won't allow
writing even if [tag flag write]products[/tag] is specified:
Database products READ_ONLY 1
If you want to have control with [tag flag write]products[/tag]:
Database products WRITE_TAGGED 1
If you want to limit write to certain catalogs, you can set:
Database products WRITE_CATALOG simple=0, sample=1
The ``simple'' catalog will not be able to write, while ``sample'' will if [tag flag write]products[/tag] is enabled.
If you want a database to be always writable without having to specify [tag flag write] ... [/tag], then you can define:
Database products WRITE_ALWAYS 1
The default behavior of SQL datbases is equivalent to WRITE_ALWAYS, while the default for GDBM_File, DB_File, and Memory databases is equivalent to:
Database products WRITE_CONTROL 1
Database products WRITE_TAGGED 1