OpenX数据表添加字段

OpenX的版本是2.8.9。在数据表加完数据库之后，还不能读取和保存字段。OpenX使用scheme来管理数据库表和字段，修改数据库结构同时也要修改相关schema，一个是etc/tables_core.xml, 另一个是lib/max/Dal/DataObjects/db_schema.ini。

在 etc/tables_core.xml 加入<field>结点，用来把数据读出到对象；

在 lib/max/Dal/DataObjects/db_schema.ini 相关表声明，等号左边是字段，右边是表示数据类型的代号。具体代号的含义是什么，慢慢研究去。

[zones]

zoneid = 129

affiliateid = 1

zonename = 130

description = 130

delivery = 129

zonetype = 129

category = 162

width = 129

height = 129

ad_selection = 162

chain = 162

prepend = 162

append = 162

appendtype = 129

forceappend = 2

inventory_forecast_type = 129

comments = 34

cost = 1

cost_type = 1

cost_variable_id = 2

technology_cost = 1

technology_cost_type = 1

updated = 142

block = 129

capping = 129

session_capping = 129

show_capped_no_cookie = 129

what = 162

as_zone_id = 1

is_in_ad_direct = 145

rate = 1

pricing = 130

oac_category_id = 1

ext_adselection = 130

show_capped_no_cookie = 129

priority = 130     // char or varchar