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- 增加 IDbFirst.GetTableByName 方法获取单表信息，包括列详情、主键、唯一键、索引、备注；

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This commit is contained in:
28810
2020-08-11 23:23:54 +08:00
parent da6effcf52
commit 0d832a5a23
33 changed files with 994 additions and 601 deletions
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100
Providers/FreeSql.Provider.SqlServer/SqlServerDbFirst.cs
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@@ -6,7 +6,6 @@ using System.Collections.Generic;
using System.Data;
using System.Linq;
using System.Text;
using System.Text.RegularExpressions;
namespace FreeSql.SqlServer
{
@@ -128,21 +127,32 @@ select
1
from sys.tables a
inner join sys.schemas b on b.schema_id = a.schema_id
where lower(b.name) = {_commonUtils.FormatSql("{0}", tbname[1])} and lower(a.name) = {_commonUtils.FormatSql("{0}", tbname[2])}
where lower(b.name)={_commonUtils.FormatSql("{0}", tbname[1])} and lower(a.name)={_commonUtils.FormatSql("{0}", tbname[2])}
;
use [{olddatabase}];
";
return string.Concat(_orm.Ado.ExecuteScalar(CommandType.Text, sql)) == "1";
}
public DbTableInfo GetTableByName(string name, bool ignoreCase = true) => GetTables(null, name, ignoreCase)?.FirstOrDefault();
public List<DbTableInfo> GetTablesByDatabase(params string[] database) => GetTables(database, null, false);
public List<DbTableInfo> GetTablesByDatabase(params string[] database)
public List<DbTableInfo> GetTables(string[] database, string tablename, bool ignoreCase)
{
var olddatabase = "";
using (var conn = _orm.Ado.MasterPool.Get(TimeSpan.FromSeconds(5)))
{
olddatabase = conn.Value.Database;
}
var dbs = database == null || database.Any() == false ? new[] { olddatabase } : database;
string[] tbname = null;
string[] dbs = database == null || database.Any() == false ? new[] { olddatabase } : database;
if (string.IsNullOrEmpty(tablename) == false)
{
tbname = _commonUtils.SplitTableName(tablename);
if (tbname?.Length == 1) tbname = new[] { olddatabase, "dbo", tbname[0] };
if (tbname?.Length == 2) tbname = new[] { olddatabase, tbname[0], tbname[1] };
tbname = tbname.Select(a => a.ToLower()).ToArray();
dbs = new[] { tbname[0] };
}
var tables = new List<DbTableInfo>();
foreach (var db in dbs)
@@ -155,6 +165,7 @@ use [{olddatabase}];
var sql = $@"
use [{db}];
select * from (
select
a.Object_id
,b.name 'Owner'
@@ -183,8 +194,8 @@ select
from sys.procedures a
inner join sys.schemas b on b.schema_id = a.schema_id
where a.type = 'P' and charindex('diagram', a.name) = 0
order by type desc, b.name, a.name
;
) ft_dbf{(tbname == null ? "" : _commonUtils.FormatSql(" where lower([owner])={0} and lower([Name])={1}", new[] { tbname[1], tbname[2] }))}
order by type desc, [owner], [Name];
use [{olddatabase}];
";
var ds = _orm.Ado.ExecuteArray(CommandType.Text, sql);
@@ -395,7 +406,9 @@ use [{olddatabase}];
}
}
sql = $@"
if (tbname == null)
{
sql = $@"
use [{db}];
select
b.object_id 'Object_id'
@@ -415,47 +428,48 @@ where {loc8.ToString().Replace("a.table_name", "b.object_id")}
;
use [{olddatabase}];
";
ds = _orm.Ado.ExecuteArray(CommandType.Text, sql);
if (ds == null) return loc1;
ds = _orm.Ado.ExecuteArray(CommandType.Text, sql);
if (ds == null) return loc1;
var fkColumns = new Dictionary<int, Dictionary<string, DbForeignInfo>>();
foreach (object[] row in ds)
{
int object_id, referenced_object_id;
int.TryParse(string.Concat(row[0]), out object_id);
var column = string.Concat(row[1]);
string fk_id = string.Concat(row[2]);
int.TryParse(string.Concat(row[3]), out referenced_object_id);
var is_foreign_key = bool.Parse(string.Concat(row[4]));
var referenced_column = string.Concat(row[5]);
var referenced_db = string.Concat(row[6]);
var referenced_table = string.Concat(row[7]);
DbColumnInfo loc9 = loc3[object_id][column];
DbTableInfo loc10 = null;
DbColumnInfo loc11 = null;
bool isThisSln = referenced_object_id != 0;
if (isThisSln)
{
loc10 = loc2[referenced_object_id];
loc11 = loc3[referenced_object_id][referenced_column];
}
else
var fkColumns = new Dictionary<int, Dictionary<string, DbForeignInfo>>();
foreach (object[] row in ds)
{
int object_id, referenced_object_id;
int.TryParse(string.Concat(row[0]), out object_id);
var column = string.Concat(row[1]);
string fk_id = string.Concat(row[2]);
int.TryParse(string.Concat(row[3]), out referenced_object_id);
var is_foreign_key = bool.Parse(string.Concat(row[4]));
var referenced_column = string.Concat(row[5]);
var referenced_db = string.Concat(row[6]);
var referenced_table = string.Concat(row[7]);
DbColumnInfo loc9 = loc3[object_id][column];
DbTableInfo loc10 = null;
DbColumnInfo loc11 = null;
bool isThisSln = referenced_object_id != 0;
if (isThisSln)
{
loc10 = loc2[referenced_object_id];
loc11 = loc3[referenced_object_id][referenced_column];
}
else
{
}
Dictionary<string, DbForeignInfo> loc12 = null;
DbForeignInfo loc13 = null;
if (!fkColumns.TryGetValue(object_id, out loc12))
fkColumns.Add(object_id, loc12 = new Dictionary<string, DbForeignInfo>());
if (!loc12.TryGetValue(fk_id, out loc13))
loc12.Add(fk_id, loc13 = new DbForeignInfo { Table = loc2[object_id], ReferencedTable = loc10 });
loc13.Columns.Add(loc9);
loc13.ReferencedColumns.Add(loc11);
}
Dictionary<string, DbForeignInfo> loc12 = null;
DbForeignInfo loc13 = null;
if (!fkColumns.TryGetValue(object_id, out loc12))
fkColumns.Add(object_id, loc12 = new Dictionary<string, DbForeignInfo>());
if (!loc12.TryGetValue(fk_id, out loc13))
loc12.Add(fk_id, loc13 = new DbForeignInfo { Table = loc2[object_id], ReferencedTable = loc10 });
loc13.Columns.Add(loc9);
loc13.ReferencedColumns.Add(loc11);
foreach (var table_id in fkColumns.Keys)
foreach (var fk in fkColumns[table_id])
loc2[table_id].ForeignsDict.Add(fk.Key, fk.Value);
}
foreach (var table_id in fkColumns.Keys)
foreach (var fk in fkColumns[table_id])
loc2[table_id].ForeignsDict.Add(fk.Key, fk.Value);
foreach (var table_id in loc3.Keys)
{