webmcp
annotate framework/env/param/update.lua @ 28:ea2e8f3a2776
allow webmcp path to be set in cgi script
this allows another script to include the webmcp script when the cwd is not the cgi-bin. the script needs to set the WEBMCP_PATH variable.
this allows another script to include the webmcp script when the cwd is not the cgi-bin. the script needs to set the WEBMCP_PATH variable.
| author | Daniel Poelzleithner <poelzi@poelzi.org> |
|---|---|
| date | Sun Sep 19 01:36:08 2010 +0200 (2010-09-19) |
| parents | 9fdfb27f8e67 |
| children |
| rev | line source |
|---|---|
| jbe/bsw@0 | 1 --[[-- |
| jbe/bsw@0 | 2 param.update( |
| jbe/bsw@0 | 3 record, -- database record to be updated |
| jbe/bsw@0 | 4 key_and_field_name1, -- name of CGI parameter and record field |
| jbe/bsw@0 | 5 key_and_field_name2, -- another name of a CGI parameter and record field |
| jbe/bsw@0 | 6 { |
| jbe/bsw@0 | 7 key3, -- name of CGI parameter |
| jbe/bsw@0 | 8 field_name3 -- name of record field |
| jbe/bsw@0 | 9 } |
| jbe/bsw@0 | 10 ) |
| jbe/bsw@0 | 11 |
| jbe/bsw@0 | 12 This function can update several fields of a database record using GET/POST request parameters (or internal/exchanged parameters). The type of each parameter is automatically determined by the class of the record (_class:get_colums()[field].type). |
| jbe/bsw@0 | 13 --]]-- |
| jbe/bsw@0 | 14 |
| jbe/bsw@0 | 15 function param.update(record, mapping_info, ...) |
| jbe/bsw@0 | 16 if not mapping_info then |
| jbe/bsw@0 | 17 return |
| jbe/bsw@0 | 18 end |
| jbe/bsw@0 | 19 assert(record, "No record given for param.update(...).") |
| jbe/bsw@0 | 20 assert(record._class, "Record passed to param.update(...) has no _class attribute.") |
| jbe/bsw@0 | 21 local key, field_name |
| jbe/bsw@0 | 22 if type(mapping_info) == "string" then |
| jbe/bsw@0 | 23 key = mapping_info |
| jbe/bsw@0 | 24 field_name = mapping_info |
| jbe/bsw@0 | 25 else |
| jbe/bsw@0 | 26 key = mapping_info[1] |
| jbe/bsw@0 | 27 field_name = mapping_info[2] |
| jbe/bsw@0 | 28 end |
| jbe/bsw@0 | 29 assert(key, "No key given in parameter of param.update(...).") |
| jbe/bsw@0 | 30 assert(field_name, "No field name given in parameter of param.update(...).") |
| jbe/bsw@0 | 31 local column_info = record._class:get_columns()[field_name] |
| jbe/bsw@0 | 32 if not column_info then |
| jbe/bsw@0 | 33 error('Type of column "' .. field_name .. '" is unknown.') |
| jbe/bsw@0 | 34 end |
| jbe/bsw@0 | 35 local new_value = param.get(key, column_info.type) |
| jbe/bsw@0 | 36 if new_value ~= record[field_name] then |
| jbe/bsw@0 | 37 record[field_name] = new_value |
| jbe/bsw@0 | 38 end |
| jbe/bsw@0 | 39 return param.update(record, ...) -- recursivly process following arguments |
| jbe/bsw@0 | 40 end |