tk/FreeSql
1
0
Fork 0
mirror of https://github.com/nsnail/FreeSql.git synced 2025-06-19 04:18:16 +08:00
Code Issues Packages Projects Releases Wiki Activity

- 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；

Browse Source
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
Download Patch File Download Diff File Expand all files Collapse all files

80
Providers/FreeSql.Provider.ShenTong/ShenTongDbFirst.cs
View File

@ -134,19 +134,30 @@ select
1
from sys_class a
inner join sys_namespace b on b.oid = a.relnamespace
where {(ignoreCase ? "lower(b.nspname)" : "b.nspname")} = {_commonUtils.FormatSql("{0}", tbname[0])} and {(ignoreCase ? "lower(a.relname)" : "a.relname")} = {_commonUtils.FormatSql("{0}", tbname[1])} and a.relkind in ('r')
where {(ignoreCase ? "lower(b.nspname)" : "b.nspname")}={_commonUtils.FormatSql("{0}", tbname[0])} and {(ignoreCase ? "lower(a.relname)" : "a.relname")}={_commonUtils.FormatSql("{0}", tbname[1])} and a.relkind in ('r')
";
return string.Concat(_orm.Ado.ExecuteScalar(CommandType.Text, sql)) == "1";
}
public List<DbTableInfo> GetTablesByDatabase(params string[] database)
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> 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[] { "PUBLIC", tbname[0] };
if (ignoreCase) tbname = tbname.Select(a => a.ToLower()).ToArray();
dbs = new[] { olddatabase };
}
var tables = new List<DbTableInfo>();
foreach (var db in dbs)
@ -158,7 +169,7 @@ where {(ignoreCase ? "lower(b.nspname)" : "b.nspname")} = {_commonUtils.FormatSq
var loc3 = new Dictionary<string, Dictionary<string, DbColumnInfo>>();
var sql = $@"
select
{(tbname == null ? "" : $"select * from (")}select
b.nspname || '.' || a.relname,
b.nspname,
a.relname,
@ -183,7 +194,7 @@ inner join sys_namespace b on b.oid = a.relnamespace
left join sys_description d on d.objoid = a.oid and objsubid = 0
where b.nspname not in ('DIRECTORIES', 'INFO_SCHEM', 'REPLICATION', 'STAGENT', 'SYSAUDIT', 'SYSDBA', 'SYSFTSDBA', 'SYSSECURE', 'SYS_GLOBAL_TEMP', 'WMSYS') and a.relkind in ('m','v')
and b.nspname || '.' || a.relname not in ('PUBLIC.GEOGRAPHY_COLUMNS','PUBLIC.GEOMETRY_COLUMNS','PUBLIC.RASTER_COLUMNS','PUBLIC.RASTER_OVERVIEWS','PUBLIC.DBA_JOBS')
";
{(tbname == null ? "" : $") ft_dbf where {(ignoreCase ? "lower(nspname)" : "nspname")}={_commonUtils.FormatSql("{0}", tbname[0])} and {(ignoreCase ? "lower(relname)" : "relname")}={_commonUtils.FormatSql("{0}", tbname[1])}")}";
var ds = _orm.Ado.ExecuteArray(CommandType.Text, sql);
if (ds == null) return loc1;
@ -400,7 +411,9 @@ where {loc8.ToString().Replace("a.table_name", "ns.nspname || '.' || d.relname")
}
}
sql = $@"
if (tbname == null)
{
sql = $@"
select
a.pktable_schem || '.' || a.pktable_name,
a.pkcolumn_name,
@ -411,36 +424,37 @@ a.fkcolumn_name
from v_sys_foreign_keys a
where {loc8.ToString().Replace("a.table_name", "a.pktable_schem || '.' || a.pktable_name")}
";
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<string, Dictionary<string, DbForeignInfo>>();
foreach (var row in ds)
{
string table_id = string.Concat(row[0]);
string column = string.Concat(row[1]);
string fk_id = string.Concat(row[2]);
string ref_table_id = string.Concat(row[3]);
bool is_foreign_key = string.Concat(row[4]) == "1";
string referenced_column = string.Concat(row[5]);
if (loc3.ContainsKey(table_id) == false || loc3[table_id].ContainsKey(column) == false) continue;
var loc9 = loc3[table_id][column];
if (loc2.ContainsKey(ref_table_id) == false) continue;
var loc10 = loc2[ref_table_id];
var loc11 = loc3[ref_table_id][referenced_column];
var fkColumns = new Dictionary<string, Dictionary<string, DbForeignInfo>>();
foreach (var row in ds)
{
string table_id = string.Concat(row[0]);
string column = string.Concat(row[1]);
string fk_id = string.Concat(row[2]);
string ref_table_id = string.Concat(row[3]);
bool is_foreign_key = string.Concat(row[4]) == "1";
string referenced_column = string.Concat(row[5]);
if (loc3.ContainsKey(table_id) == false || loc3[table_id].ContainsKey(column) == false) continue;
var loc9 = loc3[table_id][column];
if (loc2.ContainsKey(ref_table_id) == false) continue;
var loc10 = loc2[ref_table_id];
var loc11 = loc3[ref_table_id][referenced_column];
Dictionary<string, DbForeignInfo> loc12 = null;
DbForeignInfo loc13 = null;
if (!fkColumns.TryGetValue(table_id, out loc12))
fkColumns.Add(table_id, loc12 = new Dictionary<string, DbForeignInfo>());
if (!loc12.TryGetValue(fk_id, out loc13))
loc12.Add(fk_id, loc13 = new DbForeignInfo { Table = loc2[table_id], ReferencedTable = loc10 });
loc13.Columns.Add(loc9);
loc13.ReferencedColumns.Add(loc11);
Dictionary<string, DbForeignInfo> loc12 = null;
DbForeignInfo loc13 = null;
if (!fkColumns.TryGetValue(table_id, out loc12))
fkColumns.Add(table_id, loc12 = new Dictionary<string, DbForeignInfo>());
if (!loc12.TryGetValue(fk_id, out loc13))
loc12.Add(fk_id, loc13 = new DbForeignInfo { Table = loc2[table_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)
{