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ZeroDbContext.LoadSchemaFromDatabase("table1")

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This commit is contained in:
2881099
2025-04-18 14:14:19 +08:00
parent 8627f6277b
commit f35fc727ad
1 changed files with 9 additions and 7 deletions
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16
Extensions/FreeSql.Extensions.ZeroEntity/ZeroDbContext.cs
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@@ -264,23 +264,24 @@ ManyToMany 级联删除中间表（注意不删除外部根）
}
/// <summary>
/// 从数据库中加载 TableDescriptor 描述<para></para>
/// 从数据库中加载<para></para>
/// - 不支持 Navigates<para></para>
/// - 不支持 Indexes IndexMethod<para></para>
/// - 暂支持 SqlServer/MySql decimal(10,2)（其他数据库需实现对应 IDbFirst）
/// </summary>
static TableDescriptor LoadTableDescriptor(IFreeSql orm, string tableName)
public TableDescriptor LoadSchemaFromDatabase(string tableName)
{
var dbinfo = orm.DbFirst.GetTableByName(tableName, true);
if (_tables.Any(a => string.Compare(a.DbName, tableName, true) == 0)) return;
var dbinfo = _orm.DbFirst.GetTableByName(tableName, true);
if (dbinfo == null) throw new Exception($"表“{tableName}”不存在");
var tb = new TableDescriptor
var schema = new TableDescriptor
{
Comment = dbinfo.Comment,
DbName = dbinfo.Name,
Name = dbinfo.Name,
DisableSyncStructure = false,
};
tb.Columns.AddRange(dbinfo.Columns.Select(a => new TableDescriptor.ColumnDescriptor
schema.Columns.AddRange(dbinfo.Columns.Select(a => new TableDescriptor.ColumnDescriptor
{
Name = a.Name,
DbType = a.DbTypeText,
@@ -296,13 +297,14 @@ ManyToMany 级联删除中间表（注意不删除外部根）
Scale = a.Scale,
Comment = a.Comment,
}));
tb.Indexes.AddRange(dbinfo.Indexes.Select(a => new TableDescriptor.IndexDescriptor
schema.Indexes.AddRange(dbinfo.Indexes.Select(a => new TableDescriptor.IndexDescriptor
{
Name = a.Name,
IsUnique = a.IsUnique,
Fields = string.Join(",", a.Columns.Select(b => b.Column)),
}));
return tb;
_tables.AddRange(ValidateSchemaToInfoInternal(_orm, new[] { schema }));
return schema;
}
public ZeroDbContext WithTransaction(DbTransaction value)