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Reference/es_mbb_mbu_v
Syntax
int es_mbb_mbu_v( struct es_mbb *fb, const char *fieldname, void **pvar );
Arguments
struct es_mbb *fb |
Field-binding collection. |
|---|---|
const char *fieldname |
Database field name. |
void **pvar |
Reference to program variable. |
Return Codes
ES_ERROR_NONE |
Success. No errors. |
|---|---|
ES_ERROR_INVALIDFIELDTYPE |
Field is not defined as a user-defined field (i.e. ES_FLDTYPE_MBU). |
ES_ERROR_UNKNOWNFIELD |
Unknown database field in this class. |
Description
Bind by value the void* program variable with the user-defined database field fieldname. The field-binding fb must have been previously constructed via es_mbb_new().
Binding by value means that the value referenced by pvar (i.e. *pvar) is copied to the database during an insert/update operation and fieldname's value is copied to *pvar during a fetch operation.