/* ************************************************************************** */
bool MDBMigrate::drv_readTableSchema(const QString& originalName,
KexiDB::TableSchema& tableSchema)
{
// Get the column meta-data
MdbTableDef *tableDef = getTableDef(originalName);
if (!tableDef) {
kDebug() << "MDBMigrate::drv_getTableDef: couldn't find table "
<< originalName;
return false;
}
mdb_read_columns(tableDef);
kDebug() << "MDBMigrate::drv_readTableSchema: #cols = "
<< tableDef->num_cols;
/*! Convert column data to Kexi TableSchema
Nice mix of terminology here, MDBTools has columns, Kexi has fields. */
MdbColumn *col;
for (unsigned int i = 0; i < tableDef->num_cols; i++) {
col = (MdbColumn*) g_ptr_array_index(tableDef->columns, i);
// Field name
QString fldName = QString::fromUtf8(col->name);
kDebug() << "MDBMigrate::drv_readTableSchema: got column "
<< fldName << "\"" << col->name;
QString fldID(KexiUtils::string2Identifier(fldName));
// Field type
KexiDB::Field *fld =
new KexiDB::Field(fldID, type(col->col_type));
kDebug() << "MDBMigrate::drv_readTableSchema: size "
<< col->col_size << " type " << type(col->col_type);
fld->setCaption(fldName);
tableSchema.addField(fld);
}
getPrimaryKey(&tableSchema, tableDef);
// Free the column meta-data - as soon as it doesn't seg fault.
//mdb_free_tabledef(tableDef);
return true;
}
/*! Get the types and properties for each column. */
bool MySQLMigrate::drv_readTableSchema(
const QString& originalName, KexiDB::TableSchema& tableSchema)
{
// m_table = new KexiDB::TableSchema(table);
// //TODO IDEA: ask for user input for captions
// tableSchema.setCaption(table + " table");
//Perform a query on the table to get some data
QString query = QString("SELECT * FROM `") + drv_escapeIdentifier(originalName) + "` LIMIT 0";
if(d->executeSQL(query)) {
MYSQL_RES *res = mysql_store_result(d->mysql);
if (res != NULL) {
unsigned int numFlds = mysql_num_fields(res);
MYSQL_FIELD *fields = mysql_fetch_fields(res);
for(unsigned int i = 0; i < numFlds; i++) {
QString fldName(fields[i].name);
QString fldID( KexiUtils::string2Identifier(fldName) );
KexiDB::Field *fld =
new KexiDB::Field(fldID, type(originalName, &fields[i]));
if(fld->type() == KexiDB::Field::Enum) {
QStringList values = examineEnumField(originalName, &fields[i]);
}
fld->setCaption(fldName);
getConstraints(fields[i].flags, fld);
getOptions(fields[i].flags, fld);
tableSchema.addField(fld);
}
mysql_free_result(res);
} else {
kdDebug() << "MySQLMigrate::drv_tableNames: null result" << endl;
}
return true;
} else {
return false;
}
}
bool OdbMigrate::drv_readTableSchema(
const QString& originalName, KexiDB::TableSchema& tableSchema)
{
char* tableName=originalName.toAscii().data();
jmethodID getTableNames = env->GetMethodID(clsH,"getTableSchema","(Ljava/lang/String;)Ljava/lang/String;");
jstring returnString = (jstring) env->CallObjectMethod(java_class_object,getTableNames,tableName);
const char* tablesstring = env->GetStringUTFChars(returnString, NULL);
QString jsonString(tablesstring);
QStringList list = jsonString.split(",");
for(int i=0;i<list.size();i+=2)
{
QString fldID(KexiUtils::stringToIdentifier(list.at(i+1)));
KexiDB::Field *fld =
new KexiDB::Field(fldID, type(list.at(i+1)));
fld->setCaption(list.at(i));
tableSchema.addField(fld);
}
return false;
}
//==================================================================================
//This is probably going to be quite complex...need to get the types for all columns
//any any other attributes required by kexi
//helped by reading the 'tables' test program
bool PqxxMigrate::drv_readTableSchema(
const QString& originalName, KexiDB::TableSchema& tableSchema)
{
// m_table = new KexiDB::TableSchema(table);
//TODO IDEA: ask for user input for captions
//moved m_table->setCaption(table + " table");
//Perform a query on the table to get some data
kDebug();
tableSchema.setName(originalName);
if (!query("select * from " + drv_escapeIdentifier(originalName) + " limit 1"))
return false;
//Loop round the fields
for (uint i = 0; i < (uint)m_res->columns(); i++) {
QString fldName(m_res->column_name(i));
KexiDB::Field::Type fldType = type(m_res->column_type(i), fldName);
QString fldID(KexiUtils::string2Identifier(fldName));
const pqxx::oid toid = tableOid(originalName);
if (toid == 0)
return false;
KexiDB::Field *f = new KexiDB::Field(fldID, fldType);
f->setCaption(fldName);
f->setPrimaryKey(primaryKey(toid, i));
f->setUniqueKey(uniqueKey(toid, i));
f->setAutoIncrement(autoInc(toid, i));//This should be safe for all field types
tableSchema.addField(f);
// Do this for var/char types
//m_f->setLength(m_res->at(0)[i].size());
// Do this for numeric type
/*m_f->setScale(0);
m_f->setPrecision(0);*/
kDebug() << "Added field [" << f->name() << "] type [" << f->typeName()
<< ']';
}
return true;
}