internal RdbColumnInfo(
string name,
EntityPropertyMeta propertyMeta,
ColumnMeta columnMeta,
RdbTableInfo table,
DbType dbType
)
{
this.Table = table;
this.Name = name;
this.Meta = columnMeta;
this.PropertyType = TypeHelper.IgnoreNullable(propertyMeta.PropertyType);
this.DbType = dbType;
this.Property = propertyMeta.ManagedProperty as IProperty;
}
internal static IRdbTableInfo CreateTableInfo(EntityMeta em, string dbProvider)
{
if (em.TableMeta == null)
{
throw new ORMException(string.Format("类型 {0} 没有映射数据库，无法为其创造 ORM 运行时对象。", em.EntityType.FullName));
}
var identifierProvider = DbMigrationProviderFactory.GetIdentifierProvider(dbProvider);
var dbTypeConverter = DbMigrationProviderFactory.GetDbTypeConverter(dbProvider);
var name = identifierProvider.Prepare(em.TableMeta.TableName);
var res = new RdbTableInfo(name, em.EntityType);
ProcessManagedProperties(res, em, identifierProvider, dbTypeConverter);
return(res);
}
private static void ProcessManagedProperties(
RdbTableInfo table,
EntityMeta em,
IDbIdentifierQuoter identifierProvider,
DbTypeConverter dbTypeConverter
)
{
foreach (var property in em.EntityProperties)
{
var columnMeta = property.ColumnMeta;
if (columnMeta == null)
{
continue;
}
var propertyName = property.Name;
var epm = em.Property(propertyName);
if (epm == null)
{
throw new ArgumentNullException(string.Format("{0}.{1} 属性需要使用托管属性进行编写。", em.EntityType.FullName, propertyName));
}
var columnName = identifierProvider.Prepare(columnMeta.ColumnName);
var dbType = columnMeta.DbType ?? dbTypeConverter.FromClrType(epm.PropertyType);;
var column = new RdbColumnInfo(columnName, epm, columnMeta, table, dbType);
if (columnMeta.IsPrimaryKey)
{
table.PKColumn = column;
}
table.Columns.Add(column);
}
}
