public static Dictionary<string, MySqlParameter> GetParameters(Guid dataID,
tgProviderSpecificMetadata providerMetadata, tgColumnMetadataCollection columns)
{
lock (parameterCache)
{
if (!parameterCache.ContainsKey(dataID))
{
// The Parameters for this Table haven't been cached yet, this is a one time operation
Dictionary<string, MySqlParameter> types = new Dictionary<string, MySqlParameter>();
MySqlParameter param1;
foreach (tgColumnMetadata col in columns)
{
tgTypeMap typeMap = providerMetadata.GetTypeMap(col.PropertyName);
if (typeMap != null)
{
string nativeType = typeMap.NativeType;
MySqlDbType dbType = Cache.NativeTypeToDbType(nativeType);
param1 = new MySqlParameter(Delimiters.Param + col.PropertyName, dbType, 0, col.Name);
param1.SourceColumn = col.Name;
switch (dbType)
{
case MySqlDbType.Decimal:
case MySqlDbType.NewDecimal:
case MySqlDbType.Double:
case MySqlDbType.Float:
case MySqlDbType.Int16:
case MySqlDbType.Int24:
case MySqlDbType.Int32:
case MySqlDbType.Int64:
case MySqlDbType.UInt16:
case MySqlDbType.UInt24:
case MySqlDbType.UInt32:
case MySqlDbType.UInt64:
param1.Size = (int)col.CharacterMaxLength;
param1.Precision = (byte)col.NumericPrecision;
param1.Scale = (byte)col.NumericScale;
break;
case MySqlDbType.String:
case MySqlDbType.VarString:
case MySqlDbType.VarChar:
param1.Size = (int)col.CharacterMaxLength;
break;
}
types[col.Name] = param1;
}
}
parameterCache[dataID] = types;
}
}
return parameterCache[dataID];
}
public static Dictionary<string, SqlCeParameter> GetParameters(Guid dataID,
tgProviderSpecificMetadata providerMetadata, tgColumnMetadataCollection columns)
{
lock (parameterCache)
{
if (!parameterCache.ContainsKey(dataID))
{
// The Parameters for this Table haven't been cached yet, this is a one time operation
Dictionary<string, SqlCeParameter> types = new Dictionary<string, SqlCeParameter>();
SqlCeParameter param1;
foreach (tgColumnMetadata col in columns)
{
tgTypeMap typeMap = providerMetadata.GetTypeMap(col.PropertyName);
if (typeMap != null)
{
string nativeType = typeMap.NativeType;
SqlDbType dbType = Cache.NativeTypeToDbType(nativeType);
param1 = new SqlCeParameter(Delimiters.Param + col.PropertyName, dbType, 0, col.Name);
param1.SourceColumn = col.Name;
switch (dbType)
{
case SqlDbType.Decimal:
param1.Precision = (byte)col.NumericPrecision;
param1.Scale = (byte)col.NumericScale;
break;
case SqlDbType.DateTime:
param1.Precision = 23;
param1.Scale = 3;
break;
case SqlDbType.SmallDateTime:
param1.Precision = 16;
break;
}
types[col.Name] = param1;
}
}
parameterCache[dataID] = types;
}
}
return parameterCache[dataID];
}
public static Dictionary<string, VistaDBParameter> GetParameters(Guid dataID,
tgProviderSpecificMetadata providerMetadata, tgColumnMetadataCollection columns)
{
lock (parameterCache)
{
if (!parameterCache.ContainsKey(dataID))
{
// The Parameters for this Table haven't been cached yet, this is a one time operation
Dictionary<string, VistaDBParameter> types = new Dictionary<string, VistaDBParameter>();
VistaDBParameter param1;
foreach (tgColumnMetadata col in columns)
{
tgTypeMap typeMap = providerMetadata.GetTypeMap(col.PropertyName);
if (typeMap != null)
{
string nativeType = typeMap.NativeType;
VistaDBType dbType = Cache.NativeTypeToDbType(nativeType);
param1 = new VistaDBParameter(Delimiters.Param + col.PropertyName, dbType, 0, col.Name);
param1.SourceColumn = col.Name;
switch (dbType)
{
case VistaDBType.BigInt:
case VistaDBType.Int:
case VistaDBType.SmallInt:
case VistaDBType.Decimal:
case VistaDBType.Float:
case VistaDBType.Money:
case VistaDBType.SmallMoney:
param1.Size = (int)col.CharacterMaxLength;
break;
}
types[col.Name] = param1;
}
}
parameterCache[dataID] = types;
}
}
return parameterCache[dataID];
}
/// <summary>
/// This initializes the tgDataRequest for the query.
/// </summary>
/// <param name="request">The request to populate.</param>
protected void PopulateRequest(tgDataRequest request)
{
IMetadata meta = this.Meta;
tgConnection conn = this.tg2.Connection;
tgProviderSpecificMetadata providerMetadata = meta.GetProviderMetadata(conn.ProviderMetadataKey);
IDynamicQuerySerializableInternal iQuery = this as IDynamicQuerySerializableInternal;
if ((this.queries != null && this.queries.Count > 0) || iQuery.InternalSetOperations != null)
{
AssignProviderMetadata(this, new List <tgDynamicQuerySerializable>());
}
string catalog = conn.Catalog;
string schema = conn.Schema;
iData.Catalog = catalog;
iData.Schema = schema;
iData.DataID = meta.DataID;
iData.ProviderMetadata = providerMetadata;
iData.Columns = meta.Columns;
request.ConnectionString = conn.ConnectionString;
request.CommandTimeout = conn.CommandTimeout;
request.QueryType = tgQueryType.DynamicQuery;
request.DynamicQuery = this;
request.DataID = meta.DataID;
request.ProviderMetadata = providerMetadata;
request.Catalog = catalog;
request.Schema = schema;
request.Columns = meta.Columns;
if (this.m_selectAll)
{
_selectAll();
}
if (tg.QuerySource == null || tg.QuerySource.Length == 0)
{
tg.QuerySource = providerMetadata.Source;
}
}
public static string CreateFullName(tgProviderSpecificMetadata providerMetadata)
{
string name = String.Empty;
name += Delimiters.TableOpen;
name += providerMetadata.Destination;
name += Delimiters.TableClose;
return name;
}
public static string CreateFullName(tgProviderSpecificMetadata providerMetadata)
{
return Delimiters.TableOpen + providerMetadata.Destination + Delimiters.TableClose;
}
/// <summary>
///
/// </summary>
private void AssignProviderMetadata(tgDynamicQuerySerializable query, List <tgDynamicQuerySerializable> beenThere)
{
if (beenThere.Contains(query))
{
return;
}
beenThere.Add(query);
tgDynamicQuery theQuery = query as tgDynamicQuery;
IDynamicQuerySerializableInternal iQuery = query as IDynamicQuerySerializableInternal;
if (theQuery != null)
{
tgConnection conn = theQuery.tg2.Connection;
if (iQuery.ProviderMetadata == null)
{
tgProviderSpecificMetadata providerMetadata = theQuery.Meta.GetProviderMetadata(conn.ProviderMetadataKey);
iQuery.DataID = theQuery.Meta.DataID;
iQuery.Columns = theQuery.Meta.Columns;
iQuery.ProviderMetadata = providerMetadata;
}
iQuery.Catalog = conn.Catalog;
iQuery.Schema = conn.Schema;
}
// This code is for proxies as they are unable to work with column and provider metadata
// until serialized back to the server
if (iQuery.SelectAll)
{
foreach (tgColumnMetadata col in (tgColumnMetadataCollection)iQuery.Columns)
{
tgQueryItem item = new tgQueryItem(this, col.Name, col.esType);
query.Select(item);
}
}
else
{
List <tgQueryItem> columns = iQuery.SelectAllExcept;
if (columns != null)
{
foreach (tgColumnMetadata col in (tgColumnMetadataCollection)iQuery.Columns)
{
bool found = false;
for (int i = 0; i < columns.Count; i++)
{
if (col.Name == (string)columns[i])
{
found = true;
break;
}
}
if (found)
{
continue;
}
tgExpression item = new tgQueryItem(this, col.Name, col.esType);
query.Select(item);
}
}
}
foreach (tgDynamicQuerySerializable subQuery in iQuery.queries.Values)
{
AssignProviderMetadata(subQuery, beenThere);
}
if (iQuery.InternalSetOperations != null)
{
foreach (tgSetOperation setOperation in iQuery.InternalSetOperations)
{
AssignProviderMetadata(setOperation.Query, beenThere);
}
}
}
