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sqliteparsing: add a flag to indicate if we support modifying in our dlg

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This flag should indicate if we can fully handle this table definition
in our edit table dialog. if not we should do one of these things:
* disable the edit table dialog to modify the table
* display a warning message that modifying this table may remove constraints
* ??
This commit is contained in:
Peinthor Rene
2014-08-18 19:41:49 +02:00
parent aff96bf709
commit 9aa73915c3
5 changed files with 81 additions and 14 deletions
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64
src/sqlitetypes.cpp
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@@ -127,7 +127,7 @@ bool Table::hasAutoIncrement() const
return false;
}
Table Table::parseSQL(const QString &sSQL)
QPair<Table, bool> Table::parseSQL(const QString &sSQL)
{
std::stringstream s;
s << sSQL.toStdString();
@@ -143,7 +143,7 @@ Table Table::parseSQL(const QString &sSQL)
{
parser.createtable();
CreateTableWalker ctw(parser.getAST());
return ctw.table();
return qMakePair(ctw.table(), ctw.modifysupported());
}
catch(antlr::ANTLRException& ex)
{
@@ -154,7 +154,7 @@ Table Table::parseSQL(const QString &sSQL)
qCritical() << "Sqlite parse error: " << sSQL; //TODO
}
return Table("");
return qMakePair(Table(""), false);
}
QString Table::emptyInsertStmt() const
{
@@ -325,6 +325,7 @@ Table CreateTableWalker::table()
|| tc->getType() == sqlite3TokenTypes::DESC))
{
// TODO save ASC / DESC information?
m_bModifySupported = false;
tc = tc->getNextSibling();
}
@@ -340,7 +341,50 @@ Table CreateTableWalker::table()
} while(tc != antlr::nullAST && tc->getType() != sqlite3TokenTypes::RPAREN);
}
break;
default: break;
case sqlite3TokenTypes::UNIQUE:
{
tc = tc->getNextSibling(); // skip UNIQUE
tc = tc->getNextSibling(); // skip LPAREN
QVector<int> uniquefieldsindex;
do
{
QString col = identifier(tc);
int fieldindex = tab.findField(col);
if(fieldindex != -1)
uniquefieldsindex.append(fieldindex);
tc = tc->getNextSibling();
if(tc != antlr::nullAST
&& (tc->getType() == sqlite3TokenTypes::ASC
|| tc->getType() == sqlite3TokenTypes::DESC))
{
// TODO save ASC / DESC information?
m_bModifySupported = false;
tc = tc->getNextSibling();
}
while(tc != antlr::nullAST && tc->getType() == sqlite3TokenTypes::COMMA)
{
tc = tc->getNextSibling(); // skip ident and comma
}
} while(tc != antlr::nullAST && tc->getType() != sqlite3TokenTypes::RPAREN);
if(uniquefieldsindex.size() == 1)
{
tab.fields().at(uniquefieldsindex[0])->setUnique(true);
}
else
{
// else save on table a unique with more than one field
m_bModifySupported = false;
}
}
break;
default:
{
m_bModifySupported = false;
}
break;
}
s = s->getNextSibling(); //COMMA or RPAREN
@@ -390,7 +434,10 @@ void CreateTableWalker::parsecolumn(FieldPtr& f, antlr::RefAST c)
// skip constraint name, if there is any
if(con->getType() == sqlite3TokenTypes::CONSTRAINT)
{
m_bModifySupported = false;
con = con->getNextSibling()->getNextSibling();
}
switch(con->getType())
{
@@ -400,7 +447,10 @@ void CreateTableWalker::parsecolumn(FieldPtr& f, antlr::RefAST c)
con = con->getNextSibling()->getNextSibling(); // skip KEY
if(con != antlr::nullAST && (con->getType() == sqlite3TokenTypes::ASC
|| con->getType() == sqlite3TokenTypes::DESC))
{
m_bModifySupported = false;
con = con->getNextSibling(); //skip
}
if(con != antlr::nullAST && con->getType() == sqlite3TokenTypes::AUTOINCREMENT)
autoincrement = true;
}
@@ -431,7 +481,11 @@ void CreateTableWalker::parsecolumn(FieldPtr& f, antlr::RefAST c)
unique = true;
}
break;
default: break;
default:
{
m_bModifySupported = false;
}
break;
}
c = c->getNextSibling();
}