lsm/SqlSugar
1
0
Fork 0
mirror of https://gitee.com/dotnetchina/SqlSugar.git synced 2025-09-19 10:08:19 +08:00
Code Issues Actions Packages Projects Releases Wiki Activity

Support update sqlite

Browse Source
This commit is contained in:
sunkaixuan
2023-12-30 16:35:04 +08:00
parent 8ef6aac724
commit e973e92b67
1 changed files with 44 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

44
Src/Asp.NetCore2/SqlSugar/Realization/Sqlite/DbMaintenance/SqliteDbMaintenance.cs
View File

@@ -255,6 +255,50 @@ namespace SqlSugar
#endregion
#region Methods
public override bool UpdateColumn(string tableName, DbColumnInfo column)
{
try
{
// Start a transaction
this.Context.Ado.BeginTran();
tableName = tableName ?? column.TableName;
var oldColumn = column.DbColumnName;
var tempColumn = "Column" + SnowFlakeSingle.Instance.NextId();
// Step 1: Add a new column
column.DbColumnName = tempColumn;
this.AddColumn(tableName, column);
// Step 2: Update values from old column to new column
this.Context.Ado.ExecuteCommand($"UPDATE { SqlBuilder.GetTranslationColumnName(tableName)} SET {SqlBuilder.GetTranslationColumnName(column.DbColumnName)}={SqlBuilder.GetTranslationColumnName(oldColumn)}");
// Step 3: Drop the old column
this.DropColumn(tableName, oldColumn);
// Step 4: Rename the new column to the old column name
column.DbColumnName = oldColumn;
this.AddColumn(tableName, column);
// Step 5: Update values from temporary column to the new column
this.Context.Ado.ExecuteCommand($"UPDATE {SqlBuilder.GetTranslationColumnName(tableName)} SET {SqlBuilder.GetTranslationColumnName(column.DbColumnName)}={SqlBuilder.GetTranslationColumnName(tempColumn)}");
//Step 6: Drop the temporary column
this.DropColumn(tableName, tempColumn);
// Commit the transaction
this.Context.Ado.CommitTran();
return true;
}
catch (Exception)
{
// Handle exceptions, log, or rollback the transaction if necessary
this.Context.Ado.RollbackTran();
// Log the exception or throw it again based on your requirements
throw;
}
}
public override List<string> GetDbTypes()
{
return this.Context.Ado.SqlQuery<string>(@"SELECT 'TEXT' AS Data_Type