FieldSet* FieldSet::createFromDefinition(string value)
{
std::vector<string> vec;
listToVector(value, vec, ",");
std::vector<Field> fields;
for (int index = 0; index < (int)vec.size(); index++)
{
std::string definition = vec[index];
if (Field* field = Field::createFromDefinition(definition))
{
Field f(*field);
fields.push_back(f);
delete field;
} else {
return NULL;
}
}
return new FieldSet(fields);
}
Field* Field::createFromDefinition(string value)
{
std::vector<string> vec;
listToVector(value, vec, " ");
const int count = (int)vec.size();
string _name;
field_use _use = FIELD_DEFAULT;
field_type _type = type_undefined;
int _flags = flag_none;
//parse name
if (count > 0)
_name = vec[0];
//parse type
if (count > 1)
{
std::string& type = vec[1];
if (type.compare("INTEGER") == 0)
_type = type_int;
if (type.compare("TEXT") == 0)
_type = type_text;
if (type.compare("REAL") == 0)
_type = type_float;
}
//parse optional flags
if (count > 2)
{
std::string flags = vec[2];
if (count > 3)
flags += " " + vec[3];
if (flags.find("PRIMARY KEY") != std::string::npos)
{
_use = FIELD_KEY;
_flags = flag_primary_key;
}
if (flags.find("NOT NULL") != std::string::npos)
{
_flags |= flag_not_null;
}
}
Field* field = NULL;
if (!_name.empty())
{
if (_type != type_undefined)
{
if (_use == FIELD_DEFAULT)
{
field = new Field(_name, _type, _flags);
} else {
field = new Field(_use);
}
}
}
return field;
}