public DatabaseEditor(int projectid, EJ.Databases database)
{
InitializeComponent();
_projectID = projectid;
_currentData = database;
if (_currentData == null)
{
_currentData = new EJ.Databases();
_currentData.Guid = Guid.NewGuid().ToString();
_currentData.ProjectID = projectid;
_currentData.conStr = "server=;uid=;pwd=;Database=";
}
var dbtypes = typeof(EJ.Databases_dbTypeEnum).GetFields();
List <DBType> source = new List <Forms.DatabaseEditor.DBType>();
for (int i = 1; i < dbtypes.Length; i++)
{
source.Add(new DBType()
{
Name = dbtypes[i].Name, Value = (EJ.Databases_dbTypeEnum)(int) dbtypes[i].GetValue(null)
});
}
cmbDBType.ItemsSource = source;
root.DataContext = _currentData;
}
public void Create(EJ.Databases database)
{
SqlConnectionStringBuilder conStrBuilder = new SqlConnectionStringBuilder(database.conStr);
var mydbName = conStrBuilder.InitialCatalog;
conStrBuilder.InitialCatalog = "master";
IDatabaseService db;
try
{
db = EntityDB.DBContext.CreateDatabaseService(conStrBuilder.ToString(), EntityDB.DatabaseType.SqlServer);
/*
* COLLATE Chinese_PRC_CI_AS ，如果没有这句，linux的sql server中文会乱码
* 指定SQL server的排序规则
* Chinese_PRC指的是中国大陆地区，如果是台湾地区则为Chinese_Taiwan
* CI指定不区分大小写，如果要在查询时区分输入的大小写则改为CS
* AS指定区分重音，同样如果不需要区分重音，则改为AI
* COLLATE可以针对整个数据库更改排序规则，也可以单独修改某一个表或者某一个字段的排序规则，指定排序规则很有用，比如用户管理表，需要验证输入的用户名和密码的正确性，一般是要区分大小写的。
*/
db.ExecSqlString("if not exists(select [dbid] from sysdatabases where [name]='" + mydbName.ToLower() + "') create database " + mydbName.ToLower() + " COLLATE Chinese_PRC_CI_AS");
}
catch
{
}
db = EntityDB.DBContext.CreateDatabaseService(database.conStr, EntityDB.DatabaseType.SqlServer);
CreateEasyJobTable(db);
//ado.ExecCommandTextUseSameCon("if not exists(select [dbid] from sysdatabases where [name]='" + txt_databasename.Text + "') create database " + txt_databasename.Text);
}
public void Create(EJ.Databases database)
{
Pomelo.Data.MySql.MySqlConnectionStringBuilder conStrBuilder = new Pomelo.Data.MySql.MySqlConnectionStringBuilder(database.conStr);
database.Name = conStrBuilder.Database;
conStrBuilder.Database = null;
IDatabaseService db;
try
{
db = EntityDB.DBContext.CreateDatabaseService(conStrBuilder.ToString(), EntityDB.DatabaseType.MySql);
db.ExecSqlString("create database if not exists `" + database.Name.ToLower() + "` CHARACTER SET 'utf8' COLLATE 'utf8_general_ci'");
}
catch
{
}
//创建必须表
db = EntityDB.DBContext.CreateDatabaseService(database.conStr, EntityDB.DatabaseType.MySql);
db.DBContext.BeginTransaction();
try
{
CreateEasyJobTable(db);
db.DBContext.CommitTransaction();
}
catch (Exception ex)
{
db.DBContext.RollbackTransaction();
throw ex;
}
}
public void ChangeName(EJ.Databases database, string newName, string newConnectString)
{
throw new Exception("MySql 不支持修改数据库名称");
var dbnameMatch = System.Text.RegularExpressions.Regex.Match(database.conStr, @"database=(?<dname>(\w)+)", System.Text.RegularExpressions.RegexOptions.IgnoreCase);
if (dbnameMatch == null)
{
throw new Exception("连接字符串必须采用以下形式server=localhost;User Id=root;password=123456;Database=testDB");
}
var db = EntityDB.DBContext.CreateDatabaseService(database.conStr.Replace(dbnameMatch.Value, ""), EntityDB.DatabaseType.MySql);
db.ExecSqlString(string.Format("RENAME database `{0}` TO `{1}`", database.Name.ToLower(), newName.ToLower()));
try
{
var db2 = EntityDB.DBContext.CreateDatabaseService(newConnectString, EntityDB.DatabaseType.MySql);
db2.ExecSqlString("select 1");
}
catch
{
//
db.ExecSqlString(string.Format("RENAME database `{0}` TO `{1}`", newName.ToLower(), database.Name.ToLower()));
throw new Exception("连接字符串错误");
}
}
public void ChangeName(EJ.Databases database, string newName, string newConnectString)
{
var dbnameMatch_old = System.Text.RegularExpressions.Regex.Match(database.conStr, @"Data Source=(?<dname>(\w|\:|\\)+)", System.Text.RegularExpressions.RegexOptions.IgnoreCase);
var dbnameMatch = System.Text.RegularExpressions.Regex.Match(newConnectString, @"Data Source=(?<dname>(\w|\:|\\)+)", System.Text.RegularExpressions.RegexOptions.IgnoreCase);
string newfilepath = dbnameMatch.Groups["dname"].Value;
string oldfilepath = dbnameMatch_old.Groups["dname"].Value;
System.IO.File.Move(oldfilepath, newfilepath);
}
internal ImportSchema(List <string> tablenames, int targetDatabaseID, EJ.Databases source)
{
InitializeComponent();
_source = source;
_targetDatabaseID = targetDatabaseID;
list.ItemsSource = tablenames;
list.SelectAll();
list.Focus();
}
internal static string GetDesignData(EJDB db, EJ.Databases databaseObj)
{
var dt = db.Database.SelectDataSet("select actionid as [id],type,content,databaseid from designhistory where databaseid=" + databaseObj.id + " order by [actionid]");
dt.Tables[0].TableName = databaseObj.dbType.ToString();
dt.DataSetName = databaseObj.Guid;
string json = Newtonsoft.Json.JsonConvert.SerializeObject(dt);
return(Convert.ToBase64String(GZip(System.Text.Encoding.UTF8.GetBytes(json))));
}
public void Drop(EJ.Databases database)
{
SqlConnectionStringBuilder conStrBuilder = new SqlConnectionStringBuilder(database.conStr);
var mydbName = conStrBuilder.InitialCatalog;
conStrBuilder.InitialCatalog = "master";
var db = EntityDB.DBContext.CreateDatabaseService(conStrBuilder.ToString(), EntityDB.DatabaseType.SqlServer);
db.ExecSqlString("if exists(select [dbid] from sysdatabases where [name]='" + mydbName.ToLower() + "') drop database " + mydbName.ToLower());
}
public void Drop(EJ.Databases database)
{
Pomelo.Data.MySql.MySqlConnectionStringBuilder conStrBuilder = new Pomelo.Data.MySql.MySqlConnectionStringBuilder(database.conStr);
database.Name = conStrBuilder.Database;
conStrBuilder.Database = null;
var db = EntityDB.DBContext.CreateDatabaseService(conStrBuilder.ToString(), EntityDB.DatabaseType.MySql);
db.ExecSqlString("drop database if exists `" + database.Name.ToLower() + "`");
db.DBContext.Dispose();
}
public DatabaseSchema(EJ.Databases database)
{
InitializeComponent();
_target = database;
_currentData = new EJ.Databases();
_currentData.conStr = "server=;uid=;pwd=;Database=";
var dbtypes = typeof(EJ.Databases_dbTypeEnum).GetFields();
List <DBType> source = new List <DBType>();
for (int i = 1; i < dbtypes.Length; i++)
{
source.Add(new DBType()
{
Name = dbtypes[i].Name, Value = (EJ.Databases_dbTypeEnum)(int) dbtypes[i].GetValue(null)
});
}
cmbDBType.ItemsSource = source;
root.DataContext = _currentData;
}
public void Drop(EJ.Databases database)
{
string constr = database.conStr;
var m = Regex.Match(database.conStr, @"data source=(?<f>(\w|:|\\|\/|\.)+)", RegexOptions.IgnoreCase);
if (m != null && m.Length > 0)
{
string filename = m.Groups["f"].Value;
if (filename.StartsWith("\"") || filename.StartsWith("\'"))
{
filename = filename.Substring(1, filename.Length - 2);
}
if (System.IO.File.Exists(filename))
{
System.IO.File.Delete(filename);
}
}
else
{
throw new Exception("无法从连接字符串获取数据库文件路径");
}
}
public void ChangeName(EJ.Databases database, string newName, string newConnectString)
{
string constr = database.conStr;
constr = Regex.Replace(database.conStr, @"database=(\w)+", "database=master", RegexOptions.IgnoreCase);
//throw new Exception(constr);
var db = EntityDB.DBContext.CreateDatabaseService(constr, EntityDB.DatabaseType.SqlServer);
{
db.ExecSqlString("exec sp_renamedb '" + database.Name.ToLower() + "','" + newName.ToLower() + "'");
try
{
var db2 = EntityDB.DBContext.CreateDatabaseService(newConnectString, EntityDB.DatabaseType.SqlServer);
db2.ExecSqlString("select 1");
}
catch
{
//
db.ExecSqlString("exec sp_renamedb '" + newName.ToLower() + "','" + database.Name.ToLower() + "'");
throw new Exception("连接字符串错误");
}
}
}
void outputDesigns(StringBuilder result, EJDB db, EJ.Databases databaseObj)
{
DesignData data = new DesignData();
data.Database = databaseObj;
data.Modules = db.DBModule.Where(m => m.DatabaseID == databaseObj.id).ToArray();
data.Tables = db.DBTable.Where(m => m.DatabaseID == databaseObj.id).ToArray();
var tableids = data.Tables.Select(m => m.id.Value).ToArray();
data.TableInModules = db.TableInModule.Where(m => tableids.Contains(m.TableID.Value)).ToArray();
data.IDXIndexes = db.IDXIndex.Where(m => tableids.Contains(m.TableID.Value)).ToArray();
data.DBDeleteConfigs = db.DBDeleteConfig.Where(m => tableids.Contains(m.TableID.Value)).ToArray();
data.DBColumns = db.DBColumn.Where(m => tableids.Contains(m.TableID.Value)).ToArray();
data.classproperties = db.classproperty.Where(m => tableids.Contains(m.tableid.Value)).ToArray();
string json = Newtonsoft.Json.JsonConvert.SerializeObject(data);
string content = Convert.ToBase64String(GZip(System.Text.Encoding.UTF8.GetBytes(json)));
for (int i = 0; i < content.Length; i += 200)
{
int len = Math.Min(content.Length - i, 200);
result.AppendLine(content.Substring(i, len));
}
}
static void Test(EJ.Databases dbconfig)
{
IDatabaseDesignService dbservice = EntityDB.Design.DBHelper.CreateDatabaseDesignService((EntityDB.DatabaseType)(int) dbconfig.dbType);
EntityDB.IDatabaseService db = null;
dbservice.Drop(dbconfig);
try
{
dbservice.Create(dbconfig);
db = EntityDB.DBContext.CreateDatabaseService(dbconfig.conStr, (EntityDB.DatabaseType)(int) dbconfig.dbType);
List <EJ.DBColumn> allColumns = new List <EJ.DBColumn>();
List <EntityDB.Design.IndexInfo> allindexes = new List <EntityDB.Design.IndexInfo>();
#region CreateTable
if (true)
{
EJ.DBTable tableUser = new EJ.DBTable();
tableUser.Name = "User";
allColumns.Add(new EJ.DBColumn()
{
IsPKID = true,
CanNull = false,
Name = "Id",
dbType = "int",
IsAutoIncrement = true,
});
allColumns.Add(new EJ.DBColumn()
{
Name = "Name",
dbType = "varchar",
length = "50",
defaultValue = "a'b,c"
});
CreateTableAction _CreateTableAction = new CreateTableAction(tableUser, allColumns.ToArray(), allindexes.ToArray());
_CreateTableAction.Invoke(db);
DeleteTableAction _delaction = new DeleteTableAction(tableUser.Name);
_delaction.Invoke(db);
//再次创建
_CreateTableAction.Invoke(db);
}
#endregion
allColumns.Clear();
allindexes.Clear();
allColumns.Add(new EJ.DBColumn()
{
IsPKID = true,
CanNull = false,
Name = "Id",
dbType = "int",
IsAutoIncrement = true,
});
allColumns.Add(new EJ.DBColumn()
{
Name = "C1",
dbType = "varchar",
length = "50",
defaultValue = "a'b,c"
});
allColumns.Add(new EJ.DBColumn()
{
Name = "C2",
dbType = "varchar",
length = "50",
defaultValue = "abc"
});
allColumns.Add(new EJ.DBColumn()
{
Name = "C3",
dbType = "int",
defaultValue = "8"
});
allColumns.Add(new EJ.DBColumn()
{
Name = "Text1",
dbType = "text",
});
//索引
allindexes.Add(new EntityDB.Design.IndexInfo()
{
ColumnNames = new string[] { "C1" },
IsUnique = true,
});
allindexes.Add(new EntityDB.Design.IndexInfo()
{
ColumnNames = new string[] { "C2", "C3" },
});
EJ.DBTable table = new EJ.DBTable();
table.Name = "Test";
#region CreateTable
if (true)
{
CreateTableAction _CreateTableAction = new CreateTableAction(table, allColumns.ToArray(), allindexes.ToArray());
_CreateTableAction.Invoke(db);
foreach (var c in allColumns)
{
c.ChangedProperties.Clear();
c.BackupChangedProperties.Clear();
}
checkColumns(dbservice, db, table.Name, allColumns, allindexes);
}
#endregion
#region 测试自增长id
if (true)
{
Way.EntityDB.CustomDataItem dataitem = new EntityDB.CustomDataItem("test", "id", null);
dataitem.SetValue("c1", "C1");
dataitem.SetValue("c2", "C2");
dataitem.SetValue("c3", 3);
db.Insert(dataitem);
if (dataitem.GetValue("id") == null)
{
throw new Exception("测试自增长id失败");
}
db.ExecSqlString("delete from test");
}
#endregion
#region ChangeTable1
if (true)
{
EJ.DBColumn[] newcolumns = new EJ.DBColumn[2];
newcolumns[0] = (new EJ.DBColumn()
{
Name = "N0",
dbType = "varchar",
length = "30",
defaultValue = "t'b"
});
newcolumns[1] = (new EJ.DBColumn()
{
Name = "N1",
dbType = "int",
defaultValue = "18"
});
EJ.DBColumn[] changedColumns = new EJ.DBColumn[2];
changedColumns[0] = allColumns.FirstOrDefault(m => m.Name == "C3");
changedColumns[0].Name = "C3_changed";
changedColumns[0].dbType = "varchar";
changedColumns[0].defaultValue = "1'a";
changedColumns[0].CanNull = false;
changedColumns[0].length = "88";
changedColumns[1] = allColumns.FirstOrDefault(m => m.Name == "Id");
changedColumns[1].IsAutoIncrement = false;
changedColumns[1].IsPKID = false;
changedColumns[1].CanNull = true;
EJ.DBColumn[] deletecolumns = new EJ.DBColumn[1];
deletecolumns[0] = allColumns.FirstOrDefault(m => m.Name == "C2");
allColumns.Remove(deletecolumns[0]);
allindexes.Clear();
allindexes.Add(new EntityDB.Design.IndexInfo()
{
ColumnNames = new string[] { "N0", "C3_changed" },
IsUnique = true,
IsClustered = true
});
var otherColumns = (from m in allColumns
where changedColumns.Contains(m) == false
select m).ToArray();
new ChangeTableAction(table.Name, "Test2", newcolumns, changedColumns, deletecolumns, otherColumns, allindexes.ToArray())
.Invoke(db);
table.Name = "Test2";
allColumns.AddRange(newcolumns);
foreach (var c in allColumns)
{
c.ChangedProperties.Clear();
c.BackupChangedProperties.Clear();
}
checkColumns(dbservice, db, table.Name, allColumns, allindexes);
}
#endregion
#region ChangeTable2
if (true)
{
EJ.DBColumn[] newcolumns = new EJ.DBColumn[0];
EJ.DBColumn[] changedColumns = new EJ.DBColumn[1];
changedColumns[0] = allColumns.FirstOrDefault(m => m.Name == "Id");
changedColumns[0].IsAutoIncrement = true;
changedColumns[0].IsPKID = true;
changedColumns[0].CanNull = false;
EJ.DBColumn[] deletecolumns = new EJ.DBColumn[0];
var otherColumns = (from m in allColumns
where changedColumns.Contains(m) == false
select m).ToArray();
new ChangeTableAction(table.Name, "Test3", newcolumns, changedColumns, deletecolumns, otherColumns, allindexes.ToArray())
.Invoke(db);
table.Name = "Test3";
allColumns.AddRange(newcolumns);
foreach (var c in allColumns)
{
c.ChangedProperties.Clear();
c.BackupChangedProperties.Clear();
}
checkColumns(dbservice, db, table.Name, allColumns, allindexes);
}
#endregion
}
catch (Exception ex)
{
throw ex;
}
finally
{
if (db != null)
{
db.DBContext.Dispose();
}
}
}
public DatabaseItemNode(DatabaseNode parent, EJ.Databases db) : base(parent)
{
this.Database = db;
bind();
}
public void BuilderDB(EJDB db, EJ.Databases databaseObj, NamespaceCode namespaceCode, List <EJ.DBTable> tables)
{
CodeItem classCode = new CodeItem($"public class {databaseObj.Name} : Way.EntityDB.DBContext");
namespaceCode.AddItem(classCode);
StringBuilder result = new StringBuilder();
//构造函数
CodeItem initFunc = new CodeItem($" public {databaseObj.Name}(string connection, Way.EntityDB.DatabaseType dbType , bool upgradeDatabase = true): base(connection, dbType , upgradeDatabase)");
classCode.AddItem(initFunc);
initFunc.AddString("if (!setEvented)");
initFunc.AddString("{");
initFunc.AddString(" lock (lockObj)");
initFunc.AddString(" {");
initFunc.AddString(" if (!setEvented)");
initFunc.AddString(" {");
initFunc.AddString(" setEvented = true;");
initFunc.AddString(" Way.EntityDB.DBContext.BeforeDelete += Database_BeforeDelete;");
initFunc.AddString(" }");
initFunc.AddString(" }");
initFunc.AddString("}");
classCode.AddString("static object lockObj = new object();");
classCode.AddString("static bool setEvented = false;");
//级联删除
CodeItem beforeDeleteFunc = new CodeItem("static void Database_BeforeDelete(object sender, Way.EntityDB.DatabaseModifyEventArg e)");
classCode.AddItem(beforeDeleteFunc);
beforeDeleteFunc.AddString($" var db = sender as " + namespaceCode.NameSpace + "." + databaseObj.Name + @";");
beforeDeleteFunc.AddString($"if (db == null) return;");
StringBuilder _Database_deleteCodes = new StringBuilder();
foreach (var t in tables)
{
var delConfigs = db.DBDeleteConfig.Where(m => m.TableID == t.id).ToList();
if (delConfigs.Count > 0)
{
CodeItem codeitem = new CodeItem($"if (e.DataItem is {t.Name})");
beforeDeleteFunc.AddItem(codeitem);
codeitem.AddString($"var deletingItem = ({t.Name})e.DataItem;");
StringBuilder codestrs = new StringBuilder();
for (int i = 0; i < delConfigs.Count; i++)
{
var configitem = delConfigs[i];
var delDBTable = db.DBTable.FirstOrDefault(m => m.id == configitem.RelaTableID);
var relaColumn = db.DBColumn.FirstOrDefault(m => m.id == configitem.RelaColumID);
var rela_pkcolumn = db.DBColumn.FirstOrDefault(m => m.TableID == configitem.RelaTableID && m.IsPKID == true);
if (rela_pkcolumn == null)
{
throw new Exception("关联表" + delDBTable.Name + "没有定义主键");
}
codeitem.AddString($"var items{i} = (from m in db.{delDBTable.Name} where m.{relaColumn.Name} == deletingItem.id");
codeitem.AddItem(new CodeItem($"select new {delDBTable.Name}")
.AddString($"{rela_pkcolumn.Name} = m.{rela_pkcolumn.Name}")
);
codeitem.AddString(");");
codeitem.AddItem(new CodeItem("while(true)")
.AddString($"var data2del = items{i}.Take(100).ToList();")
.AddString("if(data2del.Count() ==0)")
.AddString(" break;")
.AddString("foreach (var t in data2del)")
.AddString("{")
.AddString(" t.ChangedProperties.Clear();")
.AddString(" db.Delete(t);")
.AddString("}")
);
}
beforeDeleteFunc.AddString("");
}
}
CodeItem modelbuildFunc = new CodeItem("protected override void OnModelCreating(ModelBuilder modelBuilder)");
classCode.AddItem(modelbuildFunc);
foreach (var t in tables)
{
var pkcolumn = db.DBColumn.FirstOrDefault(m => m.TableID == t.id && m.IsPKID == true);
if (pkcolumn == null)
{
throw new Exception(string.Format("表{0}缺少主键", t.Name));
}
modelbuildFunc.AddString($"modelBuilder.Entity<{t.Name}>().HasKey(m => m.{pkcolumn.Name});");
var discriminatorColumn = db.DBColumn.FirstOrDefault(m => m.TableID == t.id && m.IsDiscriminator == true);
if (discriminatorColumn != null)
{
var classNames = ParseNames(discriminatorColumn.EnumDefine).ToArray();
if (discriminatorColumn.CanNull == true)
{
modelbuildFunc.AddString($"modelBuilder.Entity<{t.Name}>().HasDiscriminator<{t.Name}_{discriminatorColumn.Name}Enum?>(\"{discriminatorColumn.Name}\")");
}
else
{
modelbuildFunc.AddString($"modelBuilder.Entity<{t.Name}>().HasDiscriminator<{t.Name}_{discriminatorColumn.Name}Enum>(\"{discriminatorColumn.Name}\")");
}
modelbuildFunc.AddString($".HasValue<{t.Name}>(({t.Name}_{discriminatorColumn.Name}Enum)0)");
foreach (var classnameitem in classNames)
{
modelbuildFunc.AddString($".HasValue<{classnameitem.Name}>({t.Name}_{discriminatorColumn.Name}Enum.{classnameitem.Name})");
}
modelbuildFunc.AddString(";");
}
}
foreach (var t in tables)
{
classCode.AddString($"System.Linq.IQueryable<{t.Name}> _{t.Name};");
PropertyCodeItem proCodeItem = new PropertyCodeItem(t.Name);
classCode.AddItem(proCodeItem);
proCodeItem.Modification = "public virtual";
proCodeItem.PropertyType = $"System.Linq.IQueryable<{t.Name}>";
proCodeItem.ItemForSet = null;
proCodeItem.ItemForGet.AddString($"if (_{t.Name} == null)");
proCodeItem.ItemForGet.AddString("{");
proCodeItem.ItemForGet.AddString($" _{t.Name} = this.Set<{t.Name}>();");
proCodeItem.ItemForGet.AddString("}");
proCodeItem.ItemForGet.AddString($"return _{t.Name};");
var discriminatorColumn = db.DBColumn.FirstOrDefault(m => m.TableID == t.id && m.IsDiscriminator == true);
if (discriminatorColumn != null)
{
var classNames = ParseNames(discriminatorColumn.EnumDefine).ToArray();
foreach (var g in classNames)
{
classCode.AddString($"System.Linq.IQueryable<{g.Name}> _{g.Name};");
proCodeItem = new PropertyCodeItem(g.Name);
classCode.AddItem(proCodeItem);
proCodeItem.Modification = "public virtual";
proCodeItem.PropertyType = $"System.Linq.IQueryable<{g.Name}>";
proCodeItem.ItemForSet = null;
proCodeItem.ItemForGet.AddString($"if (_{g.Name} == null)");
proCodeItem.ItemForGet.AddString("{");
proCodeItem.ItemForGet.AddString($" _{g.Name} = this.Set<{g.Name}>();");
proCodeItem.ItemForGet.AddString("}");
proCodeItem.ItemForGet.AddString($"return _{g.Name};");
}
}
}
result.Append("\r\n");
string content = GetDesignData(db, databaseObj);
var getDesignStringFunc = new CodeItem("protected override string GetDesignString()");
classCode.AddItem(getDesignStringFunc);
getDesignStringFunc.AddString("var result = new StringBuilder();");
getDesignStringFunc.AddString($"result.Append(\"\\r\\n\");");
for (int i = 0; i < content.Length; i += 200)
{
int len = Math.Min(content.Length - i, 200);
getDesignStringFunc.AddString("result.Append(\"" + content.Substring(i, len) + "\");");
}
getDesignStringFunc.AddString("return result.ToString();");
//记录数据库设计数据
StringBuilder codeend = new StringBuilder();
codeend.AppendLine("/*<design>");
outputDesigns(codeend, db, databaseObj);
codeend.AppendLine("<design>*/");
namespaceCode.CodeEnd = codeend.ToString();
}
public static EntityDB.IDatabaseService CreateInvokeDatabase(EJ.Databases databaseConfig)
{
string conStr = databaseConfig.conStr;
return(EntityDB.DBContext.CreateDatabaseService(conStr, (EntityDB.DatabaseType)Enum.Parse(typeof(EntityDB.DatabaseType), databaseConfig.dbType.ToString())));
}
public void Create(EJ.Databases database)
{
var db = EntityDB.DBContext.CreateDatabaseService(database.conStr, EntityDB.DatabaseType.Sqlite);
CreateEasyJobTable(db);
}
public string BuilderDB(EJDB db, EJ.Databases databaseObj, string nameSpace, List <EJ.DBTable> tables)
{
StringBuilder _Database_deleteCodes = new StringBuilder();
foreach (var t in tables)
{
var delConfigs = db.DBDeleteConfig.Where(m => m.TableID == t.id).ToList();
if (delConfigs.Count > 0)
{
StringBuilder codestrs = new StringBuilder();
for (int i = 0; i < delConfigs.Count; i++)
{
var configitem = delConfigs[i];
var delDBTable = db.DBTable.FirstOrDefault(m => m.id == configitem.RelaTableID);
var relaColumn = db.DBColumn.FirstOrDefault(m => m.id == configitem.RelaColumID);
var rela_pkcolumn = db.DBColumn.FirstOrDefault(m => m.TableID == configitem.RelaTableID && m.IsPKID == true);
if (rela_pkcolumn == null)
{
throw new Exception("关联表" + delDBTable.Name + "没有定义主键");
}
codestrs.Append(@"
var items" + i + @" = (from m in db." + delDBTable.Name + @"
where m." + relaColumn.Name + @" == deletingItem.id
select new " + nameSpace + @"." + delDBTable.Name + @"
{
" + rela_pkcolumn.Name + @" = m." + rela_pkcolumn.Name + @"
});
while(true)
{
var data2del = items" + i + @".Take(100).ToList();
if(data2del.Count() ==0)
break;
foreach (var t in data2del)
{
db.Delete(t);
}
}
");
}
_Database_deleteCodes.Append(@"
if (e.DataItem is " + nameSpace + @"." + t.Name + @")
{
var deletingItem = (" + nameSpace + @"." + t.Name + @")e.DataItem;
" + codestrs + @"
}
");
}
}
StringBuilder result = new StringBuilder();
result.Append(@"
namespace " + nameSpace + @".DB{
/// <summary>
///
/// </summary>
public class " + databaseObj.Name + @" : Way.EntityDB.DBContext
{
/// <summary>
///
/// </summary>
/// <param name=""connection""></param>
/// <param name=""dbType""></param>
public " + databaseObj.Name + @"(string connection, Way.EntityDB.DatabaseType dbType): base(connection, dbType)
{
if (!setEvented)
{
lock (lockObj)
{
if (!setEvented)
{
setEvented = true;
Way.EntityDB.DBContext.BeforeDelete += Database_BeforeDelete;
}
}
}
}
static object lockObj = new object();
static bool setEvented = false;
static void Database_BeforeDelete(object sender, Way.EntityDB.DatabaseModifyEventArg e)
{
var db = sender as " + nameSpace + ".DB." + databaseObj.Name + @";
if (db == null)
return;
" + _Database_deleteCodes + @"
}
/// <summary>
///
/// </summary>
/// <param name=""modelBuilder""></param>
protected override void OnModelCreating(ModelBuilder modelBuilder)
{
");
foreach (var t in tables)
{
var pkcolumn = db.DBColumn.FirstOrDefault(m => m.TableID == t.id && m.IsPKID == true);
if (pkcolumn == null)
{
throw new Exception(string.Format("表{0}缺少主键", t.Name));
}
result.AppendLine("modelBuilder.Entity<" + nameSpace + @"." + t.Name + @">().HasKey(m => m." + pkcolumn.Name + ");");
}
result.AppendLine("}");
foreach (var t in tables)
{
result.Append(@"
System.Linq.IQueryable<" + nameSpace + @"." + t.Name + @"> _" + t.Name + @";
/// <summary>
/// " + t.caption + @"
/// </summary>
public virtual System.Linq.IQueryable<" + nameSpace + @"." + t.Name + @"> " + t.Name + @"
{
get
{
if (_" + t.Name + @" == null)
{
_" + t.Name + @" = this.Set<" + nameSpace + @"." + t.Name + @">();
}
return _" + t.Name + @";
}
}
");
}
result.Append("\r\n");
var dt = db.Database.SelectDataSet("select * from __action where databaseid=" + databaseObj.id + " order by [id]");
dt.Tables[0].TableName = databaseObj.dbType.ToString();
dt.DataSetName = databaseObj.Guid;
string json = Newtonsoft.Json.JsonConvert.SerializeObject(dt);
string content = Convert.ToBase64String(GZip(System.Text.Encoding.UTF8.GetBytes(json)));
result.AppendLine("protected override string GetDesignString(){System.Text.StringBuilder result = new System.Text.StringBuilder(); ");
result.AppendLine("result.Append(\"\\r\\n\");");
for (int i = 0; i < content.Length; i += 200)
{
int len = Math.Min(content.Length - i, 200);
result.AppendLine("result.Append(\"" + content.Substring(i, len) + "\");");
}
result.AppendLine("return result.ToString();}");
result.Append("}}\r\n");
return(result.ToString());
}
