private static void BuildFields(XTableSchema schema)
{
string connectionName = schema.ConnectionName;
string selectSql = schema.SelectCommand;
XDataBase xdb = XDatabaseFactory.Instance.GetDataBase(connectionName);
XSql xSql = new XSql(selectSql);
string tableName = xSql.GetFrom();
// schema.Fields.Clear();
SchemaList <FieldSchema> tmpfs = new SchemaList <FieldSchema>();
DbConnection con = xdb.GetConnection();
DataTable netTable = new DataTable();
DbDataAdapter da = xdb.GetAdapter();
DbCommand cmd = con.CreateCommand();
cmd.CommandText = selectSql;
string[] paramNames = xSql.GetParamNames();
for (int i = 0; i < paramNames.Count(); i++)
{
string pName = paramNames[i];
if (!string.IsNullOrEmpty(pName))
{
pName = pName.Trim();
}
SqlParameter p = new SqlParameter();
p.ParameterName = "@" + pName;
//p.SourceColumn = pName;
p.Value = "";
cmd.Parameters.Add(p);
}
da.SelectCommand = cmd;
da.Fill(netTable);
//da.FillSchema(netTable, SchemaType.Source);
foreach (DataColumn col in netTable.Columns)
{
FieldSchema field = new FieldSchema();
field.Id = col.ColumnName;
field.DisplayName = col.Caption;
// schema.Fields.Add(field);
if (schema.Fields.FindItem(field.Id) == null)
{
schema.Fields.Add(field);
}
if (tmpfs.FindItem(field.Id) == null)
{
tmpfs.Add(field);
}
}
//从原是表中获取，字段标题等信息；
if (xSql.IsFromSourceTable(tableName))
{
string keyfield = xdb.GetPrimaryKey(tableName);
if (!string.IsNullOrEmpty(keyfield))
{
schema.KeyField = keyfield;
}
List <FieldDef> fieldDefs = xdb.GetFieldInfos(tableName);
for (int i = 0; i < fieldDefs.Count; i++)
{
FieldDef fieldDef = fieldDefs[i];
FieldSchema field = schema.Fields.FindItem(fieldDef.Name);
// field.Id =;
if (field != null)
{
field.DisplayName = fieldDef.Alias;//未用
if (string.IsNullOrEmpty(field.Title))
{
field.Title = fieldDef.Alias;
}
if (fieldDef.IsIdentity)
{
field.IsAutoInc = true;
}
}
// if (field == null)
// schema.Fields.Add(field);
// if (tmpfs.FindItem(field.Id) == null)
// tmpfs.Add(field);
}
}
//删除不存在的字段
for (int i = schema.Fields.Count - 1; i >= 0; i--)
{
FieldSchema fld = schema.Fields[i];
FieldSchema newFld = tmpfs.FindItem(fld.Id);
if (newFld == null)
{
schema.Fields.Remove(fld);
}
}
xdb.Close();
}
private static void BuildFields1(XTableSchema schema)
{
string connectionName = schema.ConnectionName;
string selectSql = schema.SelectCommand;
// XDataBase xdb = XDatabaseFactory.Instance.GetDataBase(connectionName);
DatabaseAdmin
XSql xSql = new XSql(selectSql);
string tableName = xSql.GetFrom();
// schema.Fields.Clear();
SchemaList <FieldSchema> tmpfs = new SchemaList <FieldSchema>();
if (xSql.IsFromSourceTable(tableName))
{
string keyfield = xdb.GetPrimaryKey(tableName);
if (!string.IsNullOrEmpty(keyfield))
{
schema.KeyField = keyfield;
}
List <FieldDef> fieldDefs = xdb.GetFieldInfos(tableName);
for (int i = 0; i < fieldDefs.Count; i++)
{
FieldSchema field = new FieldSchema();
FieldDef fieldDef = fieldDefs[i];
field.Id = fieldDef.Name;
field.DisplayName = fieldDef.Alias;//未用
if (string.IsNullOrEmpty(field.Title))
{
field.Title = fieldDef.Alias;
}
if (schema.Fields.FindItem(field.Id) == null)
{
schema.Fields.Add(field);
}
if (tmpfs.FindItem(field.Id) == null)
{
tmpfs.Add(field);
}
}
}
else
{
DbConnection con = xdb.GetConnection();
DataTable netTable = new DataTable();
DbDataAdapter da = xdb.GetAdapter();
DbCommand cmd = con.CreateCommand();
xSql.ParamGetter = delegate(string name)
{
if (!name.StartsWith("@"))
{
name = "@" + name;
}
if (schema.QueryParams.FindItem(name) != null)
{
XQueryParameterSchema paramSch = schema.QueryParams.GetItem(name);
return(paramSch.DefaultValue);
}
else
{
return(null);
}
};
cmd.CommandText = xSql.RelaceParamValue();
da.SelectCommand = cmd;
da.Fill(netTable);
foreach (DataColumn col in netTable.Columns)
{
FieldSchema field = new FieldSchema();
field.Id = col.ColumnName;
field.DisplayName = col.Caption;
// schema.Fields.Add(field);
if (schema.Fields.FindItem(field.Id) == null)
{
schema.Fields.Add(field);
}
if (tmpfs.FindItem(field.Id) == null)
{
tmpfs.Add(field);
}
}
}
for (int i = schema.Fields.Count - 1; i >= 0; i--)
{
FieldSchema fld = schema.Fields[i];
FieldSchema newFld = tmpfs.FindItem(fld.Id);
if (newFld == null)
{
schema.Fields.Remove(fld);
}
}
xdb.Close();
}
private static void BuildFields(DataSourceSchema schema)
{
string connectionName = schema.ConnectionName;
string selectSql = schema.SelectCommand.CommandText;
DatabaseAdmin dbAdmin = DatabaseAdmin.getInstance(connectionName);
XSql xSql = new XSql(selectSql);
string tableName = xSql.GetFrom();
// schema.Fields.Clear();
SchemaList <FieldSchema> tmpfs = new SchemaList <FieldSchema>();
DbConnection con = dbAdmin.Database.CreateConnection();
try
{
DataTable netTable = new DataTable();
DbDataAdapter da = dbAdmin.Database.GetDataAdapter();
DbCommand cmd = con.CreateCommand();
cmd.CommandText = selectSql;
string[] paramNames = xSql.GetParamNames();
for (int i = 0; i < paramNames.Count(); i++)
{
string pName = paramNames[i];
if (!string.IsNullOrEmpty(pName))
{
pName = pName.Trim();
}
SqlParameter p = new SqlParameter();
p.ParameterName = "@" + pName;
//p.SourceColumn = pName;
p.Value = "";
cmd.Parameters.Add(p);
}
da.SelectCommand = cmd;
da.Fill(netTable);
//da.FillSchema(netTable, SchemaType.Source);
foreach (DataColumn col in netTable.Columns)
{
FieldSchema field = new FieldSchema();
field.Id = col.ColumnName;
field.DisplayName = col.Caption;
// schema.Fields.Add(field);
if (schema.Fields.FindItem(field.Id) == null)
{
schema.Fields.Add(field);
}
if (tmpfs.FindItem(field.Id) == null)
{
tmpfs.Add(field);
}
}
//从原是表中获取，字段标题等信息；
if (xSql.IsFromSourceTable(tableName))
{
List <string> pks = dbAdmin.GetPrimaryKeys(tableName);
schema.KeyField = JsonConvert.SerializeObject(pks);
//if (pks.Count > 0)
// keyfield = pks[0];
//if (!string.IsNullOrEmpty(keyfield))
// schema.KeyField = keyfield;
var tbName = tableName.Trim('[', ']');
List <FieldDef> fieldDefs = dbAdmin.getTableDef(tbName).FieldDefs;
for (int i = 0; i < fieldDefs.Count; i++)
{
FieldDef fieldDef = fieldDefs[i];
FieldSchema field = schema.Fields.FindItem(fieldDef.Name);
// field.Id =;
if (field != null)
{
field.IsKey = pks.Contains(field.Id);
field.DisplayName = fieldDef.Alias;//未用
if (string.IsNullOrEmpty(field.Title))
{
field.Title = fieldDef.Alias;
}
if (fieldDef.IsIdentity)
{
field.IsAutoInc = true;
}
}
// if (field == null)
// schema.Fields.Add(field);
// if (tmpfs.FindItem(field.Id) == null)
// tmpfs.Add(field);
}
}
//删除不存在的字段
for (int i = schema.Fields.Count - 1; i >= 0; i--)
{
FieldSchema fld = schema.Fields[i];
FieldSchema newFld = tmpfs.FindItem(fld.Id);
if (newFld == null)
{
schema.Fields.Remove(fld);
}
}
}
finally
{
con.Close();
}
}