internal void UpdateTables(System.Type table1, System.Type table2)
{
Table1Type = table1;
Table2Type = table2;
Table1 = GXDbHelpers.GetTableName(table1, false, null);
Table2 = GXDbHelpers.GetTableName(table2, false, null);
}
public override string ToString()
{
UpdateMaps(Settings, Maps, null);
StringBuilder sb = new StringBuilder();
sb.Append("Create View ");
sb.Append(GXDbHelpers.GetTableName(type, true, Parent.Settings.TableQuotation, null));
sb.Append(" AS ");
sb.Append(Select.ToString());
return(sb.ToString());
}
public string ToString(bool addExecutionTime)
{
if (Parent.Updated || Updated)
{
StringBuilder sb = new StringBuilder();
sb.Append("DELETE FROM ");
sb.Append(GXDbHelpers.GetTableName(Table, true, Parent.Settings.TableQuotation, Parent.Settings.TablePrefix));
string str = Where.ToString();
if (!string.IsNullOrEmpty(str))
{
sb.Append(" ");
sb.Append(str);
}
Updated = false;
return(sb.ToString());
}
return(string.Empty);
}
/// <summary>
/// Get as name.
/// </summary>
/// <param name="joinList"></param>
/// <param name="type"></param>
/// <returns></returns>
/// <remarks>
/// As name is used if:
/// 1. Data from different classes is saved to same table.
/// 2. Several classes are using same class.
/// 3. User is defined it using Alias attribute.
/// </remarks>
internal static string GetAsName(List <GXJoin> joinList, Type type, bool selectUsingAs)
{
//Data from different classes is saved to same table.
if (selectUsingAs || GXDbHelpers.IsSharedTable(type))
{
string name = GXDbHelpers.OriginalTableName(type);
int cnt = 0;
GXJoin target = null;
foreach (GXJoin it in joinList)
{
if (type == it.Table1Type)
{
target = it;
}
else if (it.Alias2 == name || it.Table2 == name)
{
++cnt;
//If we have more than one class that are sharing same table.
if (cnt != 1)
{
break;
}
}
}
if (cnt > 1)
{
name = GXDbHelpers.GetTableName(type, false, '\0', null, false);
if (target != null)
{
target.Alias2 = name;
}
return(name);
}
if (selectUsingAs)
{
return(name);
}
}
if (GXDbHelpers.IsAliasName(type))
{
return(GXDbHelpers.OriginalTableName(type));
}
return(null);
}
internal static void OrderByToString(GXSelectArgs parent, StringBuilder sb, List <GXOrder> OrderList, List <GXJoin> joinList)
{
bool first = true;
if (OrderList.Count != 0)
{
sb.Append(" ORDER BY ");
first = true;
foreach (GXOrder it in OrderList)
{
if (first)
{
first = false;
}
else
{
sb.Append(", ");
}
if (parent.Settings.Type == DatabaseType.MSSQL && parent.Count != 0)
{
string table = GXDbHelpers.GetTableName(it.Table, true, '\0', parent.Settings.TablePrefix);
sb.Append(GXDbHelpers.AddQuotes(table + '.' + it.Column, parent.Settings.ColumnQuotation));
continue;
}
//Add table name always until there is a way to check are multiple tables used. if (joinList.Count != 0)
{
string table = GXDbHelpers.GetTableName(it.Table, true, parent.Settings.TableQuotation, parent.Settings.TablePrefix);
sb.Append(table);
sb.Append('.');
}
sb.Append(GXDbHelpers.AddQuotes(it.Column, parent.Settings.ColumnQuotation));
}
if (parent.Descending)
{
sb.Append(" DESC");
}
}
}
internal static void GroupByToString(GXSelectArgs parent, StringBuilder sb, List <GXOrder> groupList, List <GXJoin> joinList)
{
if (groupList.Count != 0)
{
sb.Append(" GROUP BY ");
bool first = true;
foreach (GXOrder it in groupList)
{
if (first)
{
first = false;
}
else
{
sb.Append(", ");
}
//Table name is not added if there is only one table.
if (joinList.Count != 0)
{
if (parent.Settings.Type == DatabaseType.MSSQL && parent.Count != 0)
{
string table = GXDbHelpers.GetTableName(it.Table, true, '\0', parent.Settings.TablePrefix);
sb.Append(table);
sb.Append('.');
}
else
{
string table = GXDbHelpers.GetTableName(it.Table, true, parent.Settings.TableQuotation, parent.Settings.TablePrefix);
sb.Append(table);
sb.Append('.');
}
}
sb.Append(GXDbHelpers.AddQuotes(it.Column, parent.Settings.ColumnQuotation));
}
}
}
private void SelectToString(GXDBSettings settings, StringBuilder sb, bool distinct,
Dictionary <Type, List <string> > columnList, List <GXJoin> joinList, UInt32 index, UInt32 count)
{
Dictionary <Type, string> asTable = new Dictionary <Type, string>();
string name;
foreach (var it in columnList)
{
name = GetAsName(joinList, it.Key, settings.SelectUsingAs);
if (name != null)
{
asTable.Add(it.Key, name);
}
}
sb.Append("SELECT ");
if (distinct)
{
sb.Append("DISTINCT ");
}
if (index != 0 || count != 0)
{
if (index != 0 && count == 0)
{
throw new ArgumentOutOfRangeException("Count can't be zero if index is given.");
}
if (index != 0)
{
if (settings.LimitType == LimitType.Top)
{
sb.Length = 0;
sb.Append("SELECT * FROM (SELECT TOP ");
sb.Append(count);
sb.Append(" GX.* FROM (");
sb.Append("SELECT ");
if (distinct)
{
sb.Append("DISTINCT ");
}
sb.Append("TOP ");
sb.Append(index + count);
sb.Append(" ");
}
}
else
{
if (settings.LimitType == LimitType.Top)
{
sb.Append("TOP ");
sb.Append(count);
sb.Append(" ");
}
}
}
string tableAs, table;
bool first = true;
foreach (var it in columnList)
{
if (asTable.ContainsKey(it.Key))
{
tableAs = asTable[it.Key];
}
else
{
tableAs = null;
}
if (GXDbHelpers.IsSharedTable(it.Key) || GXDbHelpers.IsAliasName(it.Key))
{
table = GXDbHelpers.AddQuotes(GXDbHelpers.OriginalTableName(it.Key), settings.TableQuotation);
}
else
{
table = GXDbHelpers.GetTableName(it.Key, true, settings.TableQuotation, settings.TablePrefix);
}
foreach (var col in it.Value)
{
name = null;
if (first)
{
first = false;
}
else
{
sb.Append(", ");
}
//Check is this method.
int pos = col.LastIndexOf('(');
//Table name is not added if only one table.
if (pos == -1 && joinList.Count != 0)
{
if (asTable.Count > 1 && tableAs != null)
{
sb.Append(tableAs);
}
else
{
sb.Append(table);
}
sb.Append(".");
}
if (pos == -1) //If table field.
{
if (col == "*")
{
sb.Append(col);
}
else
{
name = GXDbHelpers.AddQuotes(col, settings.ColumnQuotation);
sb.Append(name);
}
if (tableAs != null)
{
sb.Append(" AS ");
name = GXDbHelpers.AddQuotes(tableAs + "." + col, settings.ColumnQuotation);
sb.Append(name);
}
else if (settings.SelectUsingAs && index == 0)
{
sb.Append(" AS ");
name = GXDbHelpers.AddQuotes(tableAs + "." + col, settings.ColumnQuotation);
sb.Append(name);
}
}
else //If method like COUNT(*)
{
sb.Append(col);
if (settings.SelectUsingAs && index == 0)
{
sb.Append(" AS ");
name = GXDbHelpers.AddQuotes(tableAs + "." + col.Substring(0, pos), settings.ColumnQuotation);
sb.Append(name);
}
}
if (Maps.ContainsKey(col))
{
sb.Append(" AS ");
sb.Append(GXDbHelpers.AddQuotes(Maps[col], settings.ColumnQuotation));
}
}
}
if (columnList.Count == 0)
{
sb.Append("*");
}
if (joinList.Count == 0)
{
sb.Append(" FROM ");
first = true;
foreach (var it in columnList)
{
if (first)
{
first = false;
}
else
{
sb.Append(", ");
}
sb.Append(GXDbHelpers.GetTableName(it.Key, settings.UseQuotationWhereColumns, settings.TableQuotation, settings.TablePrefix));
if (asTable.ContainsKey(it.Key))
{
sb.Append(" ");
sb.Append(GXDbHelpers.AddQuotes(asTable[it.Key], settings.TableQuotation));
}
}
}
else
{
//If we are adding relation to same table more than once.
Dictionary <string, int> list = new Dictionary <string, int>();
sb.Append(" FROM ");
first = true;
if (joinList.Count != 1)
{
for (int pos = 0; pos < joinList.Count; ++pos)
{
sb.Append("(");
}
}
foreach (var it in joinList)
{
if (first)
{
sb.Append(GXDbHelpers.AddQuotes(it.Table1, settings.TableQuotation));
if (asTable.ContainsKey(it.Table1Type))
{
sb.Append(" ");
sb.Append(GXDbHelpers.AddQuotes(asTable[it.Table1Type], settings.TableQuotation));
}
else
{
if (it.Alias1 != null)
{
sb.Append(" ");
sb.Append(it.Alias1);
}
}
first = false;
}
switch (it.Type)
{
case JoinType.Inner:
sb.Append(" INNER JOIN ");
break;
case JoinType.Left:
sb.Append(" LEFT OUTER JOIN ");
break;
case JoinType.Right:
sb.Append(" RIGHT OUTER JOIN ");
break;
default:
throw new ArgumentOutOfRangeException("Invalid join type.");
}
sb.Append(GXDbHelpers.AddQuotes(it.Table2, settings.TableQuotation));
//Add alias if used and it is not same as table name.
if (asTable.ContainsKey(it.Table2Type))
{
sb.Append(" ");
sb.Append(GXDbHelpers.AddQuotes(asTable[it.Table2Type], settings.TableQuotation));
}
sb.Append(" ON ");
if (asTable.ContainsKey(it.Table1Type))
{
sb.Append(" ");
sb.Append(GXDbHelpers.AddQuotes(asTable[it.Table1Type], settings.TableQuotation));
}
else
{
sb.Append(GXDbHelpers.AddQuotes(it.Table1, settings.TableQuotation));
}
sb.Append('.');
sb.Append(it.Column1);
sb.Append('=');
//Add alias if used.
if (asTable.ContainsKey(it.Table2Type))
{
//sb.Append(it.Table2);
sb.Append(GXDbHelpers.AddQuotes(asTable[it.Table2Type], settings.TableQuotation));
}
else
{
sb.Append(GXDbHelpers.AddQuotes(it.Table2, settings.TableQuotation));
if (it.Alias2 == null && it.Index != 0)
{
sb.Append(it.Index);
}
}
sb.Append('.');
sb.Append(it.Column2);
if (it.AllowNull1)
{
sb.Append(" OR ");
//Add alias if used.
if (asTable.ContainsKey(it.Table1Type))
{
sb.Append(GXDbHelpers.AddQuotes(asTable[it.Table1Type], settings.TableQuotation));
}
else
{
sb.Append(GXDbHelpers.AddQuotes(it.Table1, settings.TableQuotation));
}
sb.Append('.');
sb.Append(it.Column1);
sb.Append(" IS NULL");
}
if (it.AllowNull2)
{
sb.Append(" OR ");
//Add alias if used.
if (asTable.ContainsKey(it.Table2Type))
{
sb.Append(GXDbHelpers.AddQuotes(asTable[it.Table2Type], settings.TableQuotation));
}
else
{
sb.Append(GXDbHelpers.AddQuotes(it.Table2, settings.TableQuotation));
}
sb.Append('.');
sb.Append(it.Column2);
sb.Append(" IS NULL");
}
if (joinList.Count != 1)
{
sb.Append(")");
}
}
}
if (index != 0)
{
if (settings.LimitType == LimitType.Top)
{
List <Type> tables = new List <Type>();
foreach (var it in columnList)
{
if (!tables.Contains(it.Key))
{
tables.Add(it.Key);
}
}
GXSerializedItem si = null;
foreach (var it in tables)
{
if ((si = GXSqlBuilder.FindUnique(it)) != null)
{
break;
}
}
string id;
//Add alias if used.
if (asTable.ContainsKey((si.Target as PropertyInfo).ReflectedType))
{
id = GXDbHelpers.AddQuotes(asTable[(si.Target as PropertyInfo).ReflectedType] + "." + GXDbHelpers.GetColumnName(si.Target as PropertyInfo, '\0'), settings.TableQuotation);
}
else
{
id = GXDbHelpers.GetColumnName(si.Target as PropertyInfo, '\0');
}
sb.Append(string.Format(" ORDER BY {0}) AS GX ORDER BY GX.{0} DESC) AS GX2", id));
}
}
}
/// <summary>
/// Get table name.
/// </summary>
/// <param name="type">Table type.</param>
/// <param name="addQuoteSeparator">Is quote separator added.</param>
/// <param name="allowSharedTables"></param>
/// <returns>Table name.</returns>
internal string GetTableName(Type type, bool addQuoteSeparator, bool allowSharedTables)
{
return(GXDbHelpers.GetTableName(type, addQuoteSeparator, Settings.TableQuotation, Settings.TablePrefix, allowSharedTables));
}
/// <summary>
/// Update DB relations.
/// </summary>
/// <param name="mainType"></param>
/// <param name="s"></param>
private static void UpdateRelations(Type mainType, GXSerializedItem s, bool primaryData, Dictionary <Type, GXRelationTable> relationTable)
{
Type type;
if (primaryData)
{
s.Relation = new GXRelationTable();
s.Relation.Column = s;
s.Relation.PrimaryTable = mainType;
s.Relation.PrimaryId = s;
if ((s.Attributes & Attributes.ForeignKey) != 0)
{
ForeignKeyAttribute[] fks = ((ForeignKeyAttribute[])(s.Target as PropertyInfo).GetCustomAttributes(typeof(ForeignKeyAttribute), false));
ForeignKeyAttribute fk;
if (fks.Length == 0)
{
fk = null;
type = null;
}
else
{
fk = fks[0];
type = fk.Type;
}
//If type is not give in ForeignKeyAttribute.
if (type == null)
{
type = s.Type;
if (typeof(IEnumerable).IsAssignableFrom(type))
{
type = GXInternal.GetPropertyType(type);
}
}
s.Relation.ForeignTable = type;
if (fk != null && fk.MapTable != null)
{
s.Relation.RelationType = RelationType.ManyToMany;
}
else if (s.Type != typeof(string) && typeof(System.Collections.IEnumerable).IsAssignableFrom(s.Type))
{
s.Relation.RelationType = RelationType.OneToMany;
s.Relation.PrimaryId = GXSqlBuilder.FindRelation(type, mainType);
if (s.Relation.PrimaryId == null)
{
throw new Exception(string.Format("Relation create failed. Foreign table '{0}' do not have relation to table '{1}'.",
GXDbHelpers.GetTableName(type, false, null),
GXDbHelpers.OriginalTableName(mainType)));
}
}
else
{
s.Relation.RelationType = RelationType.OneToOne;
}
}
else if ((s.Attributes & Attributes.Relation) != 0)
{
RelationAttribute ra = ((RelationAttribute[])(s.Target as PropertyInfo).GetCustomAttributes(typeof(RelationAttribute), false))[0];
type = ra.Target;
if (type == null)
{
type = s.Type;
}
if (typeof(IEnumerable).IsAssignableFrom(type))
{
type = GXInternal.GetPropertyType(type);
}
s.Relation.ForeignTable = type;
}
}
else
{
if ((s.Attributes & Attributes.ForeignKey) != 0)
{
ForeignKeyAttribute[] fks = ((ForeignKeyAttribute[])(s.Target as PropertyInfo).GetCustomAttributes(typeof(ForeignKeyAttribute), false));
ForeignKeyAttribute fk;
if (fks.Length == 0)
{
fk = null;
type = null;
}
else
{
fk = fks[0];
type = fk.Type;
}
//If type is not give in ForeignKeyAttribute.
if (type == null)
{
type = s.Type;
if (typeof(IEnumerable).IsAssignableFrom(type))
{
type = GXInternal.GetPropertyType(type);
}
}
GXSerializedItem secondary = FindUnique(type);
if (secondary == null)
{
throw new Exception(string.Format("Table {0} Relation create failed. Class must be derived from IUnique or target type must set in ForeignKey or Relation attribute.",
GXDbHelpers.GetTableName(mainType, true, '\'', null)));
}
s.Relation.ForeignId = secondary;
//Update relation map fields.
if (fk != null && fk.MapTable != null)
{
foreach (var it in GetProperties(fk.MapTable))
{
if ((it.Value.Attributes & Attributes.ForeignKey) != 0 &&
s.Relation.ForeignTable == it.Value.Relation.ForeignTable)
{
s.Relation.RelationMapTable = it.Value;
break;
}
}
}
}
else if ((s.Attributes & Attributes.Relation) != 0)
{
RelationAttribute ra = ((RelationAttribute[])(s.Target as PropertyInfo).GetCustomAttributes(typeof(RelationAttribute), false))[0];
type = ra.Target;
if (type == null)
{
type = s.Type;
}
if (typeof(IEnumerable).IsAssignableFrom(type))
{
type = GXInternal.GetPropertyType(type);
}
GXSerializedItem secondary = FindUnique(type);
if (secondary == null)
{
throw new Exception(string.Format("Table {0} Relation create failed. Class must be derived from IUnique or target type must set in ForeignKey or Relation attribute.",
GXDbHelpers.GetTableName(mainType, true, '\'', null)));
}
s.Relation.ForeignId = secondary;
}
}
}
