/// <inheritdoc cref="GXDBSettings.CreateAutoIncrement"/>
public override string[] CreateAutoIncrement(string tableName, string columnName)
{
//IDENTITY don't work with multiple insert at the same query.
//Within a single SQL statement containing a reference to NEXTVAL, Oracle increments the sequence once:
//https://docs.oracle.com/cd/E11882_01/server.112/e41084/pseudocolumns002.htm#SQLRF50946
string trigger = GetTriggerName(tableName, columnName);
tableName = GXDbHelpers.AddQuotes(tableName, this.TableQuotation);
columnName = GXDbHelpers.AddQuotes(columnName, this.ColumnQuotation);
//Create sequence.
return(new string[] { "DECLARE\n C NUMBER;\nBEGIN\nSELECT COUNT(*) INTO C FROM USER_SEQUENCES WHERE SEQUENCE_NAME = '" + trigger + "';\n" +
"IF (C = 0) THEN\n EXECUTE IMMEDIATE 'CREATE SEQUENCE " + trigger + "';\nEND IF;END;",
//Create or replace trigger.
"CREATE OR REPLACE TRIGGER " + trigger + " BEFORE INSERT ON " + tableName + " FOR EACH ROW\n" +
"BEGIN\n SELECT " + trigger + ".NEXTVAL\n INTO\n :new." + columnName + "\n \nFROM dual;\nEND;" });
}
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));
}
}
}
internal string ToString(ref string post)
{
if (Parent.Updated || Updated)
{
ColumnList.Clear();
List <GXJoin> joinList = new List <GXJoin>();
GXOrderByCollection.UpdateJoins(Parent.Settings, Joins, joinList);
string[] list;
StringBuilder sb = new StringBuilder();
//Get columns.
Dictionary <string, GXSerializedItem> properties;
Dictionary <Type, GXSerializedItem> neededTables = new Dictionary <Type, GXSerializedItem>();
foreach (var it in List)
{
//No relations.
if (!neededTables.ContainsKey(it.Key.Parameters[0].Type))
{
neededTables.Add(it.Key.Parameters[0].Type, null);
}
list = GXDbHelpers.GetMembers(Parent.Settings, it.Key, '\0', false, ref post);
foreach (var it2 in list)
{
properties = GXSqlBuilder.GetProperties(it.Key.Parameters[0].Type);
if (it2 != "*" && ColumnList.ContainsKey(it.Key.Parameters[0].Type))
{
if (properties.ContainsKey(it2))
{
GXSerializedItem si = properties[it2];
if (si.Relation != null)
{
//Get properties.
GetColumns(si.Relation.ForeignTable, ColumnList, neededTables);
}
if (si.Relation == null || si.Relation.RelationType != RelationType.ManyToMany)
{
ColumnList[it.Key.Parameters[0].Type].Add(it2);
}
}
else
{
string str = it2;
if (it.Value != null)
{
string[] tmp = GXDbHelpers.GetMembers(Parent.Settings, it.Value, '\0', false, ref post);
str += " AS " + tmp[0];
}
ColumnList[it.Key.Parameters[0].Type].Add(str);
}
}
else
{
if (it2 == "*")
{
GetColumns(it.Key.Parameters[0].Type, ColumnList, neededTables);
}
else
{
if (neededTables.ContainsKey(it.Key.Parameters[0].Type))
{
neededTables.Remove(it.Key.Parameters[0].Type);
}
List <string> columns2 = new List <string>();
columns2.Add(it2);
ColumnList.Add(it.Key.Parameters[0].Type, columns2);
if (properties.ContainsKey(it2))
{
GXSerializedItem si = properties[it2];
if (si.Relation != null)
{
//Get properties.
GetColumns(si.Relation.ForeignTable, ColumnList, neededTables);
}
}
}
}
}
}
foreach (var it in ColumnList)
{
foreach (KeyValuePair <Type, LambdaExpression> x in Excluded)
{
if (x.Key == it.Key)
{
string[] removed = GXDbHelpers.GetMembers(null, x.Value, '\0', false, ref post);
foreach (string col in removed)
{
bool includeQuery = false;
string col2 = GXDbHelpers.AddQuotes(col, Parent.Settings.ColumnQuotation);
//Joins are not removed from the qyery or 1:1 doesn't work.
foreach (var j in joinList)
{
if ((it.Key == j.Table1Type && j.Column1 == col2) ||
(it.Key == j.Table2Type && j.Column2 == col2))
{
includeQuery = true;
break;
}
}
if (!includeQuery)
{
it.Value.Remove(col);
}
}
}
}
}
SelectToString(Parent.Settings, sb, Parent.Distinct, ColumnList, joinList, Parent.Index, Parent.Count, post);
sql = sb.ToString();
Updated = false;
}
return(sql);
}
