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fields.c    294 lines (260 with data), 7.1 kB

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/* -*- mode: C; indent-tabs-mode: t; c-basic-offset: 8; -*- */
#include "mysqlmod.h"
static char _mysql_FieldObject__doc__[] =
"";
int
_mysql_FieldObject_Initialize(
_mysql_FieldObject *self,
PyObject *args,
PyObject *kwargs)
{
static char *kwlist[] = {"result", "index", NULL};
_mysql_ResultObject *result=NULL;
MYSQL_FIELD *field;
unsigned int index;
if (!PyArg_ParseTupleAndKeywords(args, kwargs, "Oi", kwlist,
&result, &index))
return -1;
self->index = index;
field = mysql_fetch_field_direct(result->result, index);
if (!field) return -1;
self->field = *field;
self->result = (PyObject *) result;
Py_INCREF(result);
return 0;
}
static int
_mysql_FieldObject_traverse(
_mysql_FieldObject *self,
visitproc visit,
void *arg)
{
if (self->result)
return visit(self->result, arg);
return 0;
}
static int
_mysql_FieldObject_clear(
_mysql_FieldObject *self)
{
Py_XDECREF(self->result);
self->result = NULL;
return 0;
}
static void
_mysql_FieldObject_dealloc(
_mysql_FieldObject *self)
{
PyObject_GC_UnTrack((PyObject *)self);
_mysql_FieldObject_clear(self);
MyFree(self);
}
static PyObject *
_mysql_FieldObject_repr(
_mysql_FieldObject *self)
{
return PyString_FromFormat("<_mysql.field object at %p>", self);
}
static PyMethodDef _mysql_FieldObject_methods[] = {
{NULL, NULL} /* sentinel */
};
static struct PyMemberDef _mysql_FieldObject_memberlist[] = {
{
"result",
T_OBJECT,
offsetof(_mysql_FieldObject, result),
RO,
"Result set"
},
{
"name",
T_STRING,
offsetof(_mysql_FieldObject, field.name),
RO,
"The name of the field. If the field was given\n\
an alias with an AS clause, the value of name is the alias."
},
{
"org_name",
T_STRING,
offsetof(_mysql_FieldObject, field.org_name),
RO,
"The name of the field. Aliases are ignored."
},
{
"table",
T_STRING,
offsetof(_mysql_FieldObject, field.table),
RO,
"The name of the table containing this field,\n\
if it isn't a calculated field. For calculated fields,\n\
the table value is an empty string. If the column is selected from a view,\n\
table names the view. If the table or view was given an alias with an AS clause,\n\
the value of table is the alias.\n"
},
{
"org_table",
T_STRING,
offsetof(_mysql_FieldObject, field.org_table),
RO,
"The name of the table. Aliases are ignored.\n\
If the column is selected from a view, org_table names the underlying table.\n"
},
{
"db",
T_STRING,
offsetof(_mysql_FieldObject, field.db),
RO,
"The name of the database that the field comes from.\n\
If the field is a calculated field, db is an empty string."
},
{
"catalog",
T_STRING,
offsetof(_mysql_FieldObject, field.catalog),
RO,
"The catalog name. This value is always \"def\"."
},
{
"length",
T_ULONG,
offsetof(_mysql_FieldObject, field.length),
RO,
"The width of the field.\n\
as specified in the table definition.\n"
},
{
"max_length",
T_ULONG,
offsetof(_mysql_FieldObject, field.max_length),
RO,
"The maximum width of the field for the result set\n\
(the length of the longest field value for the rows actually in the\n\
result set). If you use conn.store_result(), this contains the\n\
maximum length for the field. If you use conn.use_result(),\n\
the value of this variable is zero.\n"
},
{
"decimals",
T_UINT,
offsetof(_mysql_FieldObject, field.decimals),
RO,
"The number of decimals for numeric fields.\n"
},
{
"charsetnr",
T_UINT,
offsetof(_mysql_FieldObject, field.charsetnr),
RO,
"The character set number for the field."
},
{
"flags",
T_UINT,
offsetof(_mysql_FieldObject, field.flags),
RO,
"Different bit-flags for the field.\n\
The bits are enumerated in MySQLdb.constants.FLAG.\n\
The flags value may have zero or more of these bits set.\n"
},
{
"type",
T_UINT,
offsetof(_mysql_FieldObject, field.type),
RO,
"The type of the field. The type values\n\
are enumerated in MySQLdb.constants.FIELD_TYPE.\n"
},
{NULL} /* Sentinel */
};
static PyObject *
_mysql_FieldObject_getattr(
_mysql_FieldObject *self,
char *name)
{
PyObject *res;
struct PyMemberDef *l;
res = Py_FindMethod(_mysql_FieldObject_methods, (PyObject *)self, name);
if (res != NULL)
return res;
PyErr_Clear();
for (l = _mysql_FieldObject_memberlist; l->name != NULL; l++) {
if (strcmp(l->name, name) == 0)
return PyMember_GetOne((char *)self, l);
}
PyErr_SetString(PyExc_AttributeError, name);
return NULL;
}
static int
_mysql_FieldObject_setattr(
_mysql_FieldObject *self,
char *name,
PyObject *v)
{
struct PyMemberDef *l;
if (v == NULL) {
PyErr_SetString(PyExc_AttributeError,
"can't delete attributes");
return -1;
}
for (l = _mysql_FieldObject_memberlist; l->name != NULL; l++)
if (strcmp(l->name, name) == 0)
return PyMember_SetOne((char *)self, l, v);
PyErr_SetString(PyExc_AttributeError, name);
return -1;
}
PyTypeObject _mysql_FieldObject_Type = {
PyObject_HEAD_INIT(NULL)
0,
"_mysql.field",
sizeof(_mysql_FieldObject),
0,
(destructor)_mysql_FieldObject_dealloc, /* tp_dealloc */
0, /*tp_print*/
(getattrfunc)_mysql_FieldObject_getattr, /* tp_getattr */
(setattrfunc)_mysql_FieldObject_setattr, /* tp_setattr */
0, /*tp_compare*/
(reprfunc)_mysql_FieldObject_repr, /* tp_repr */
/* Method suites for standard classes */
0, /* (PyNumberMethods *) tp_as_number */
0, /* (PySequenceMethods *) tp_as_sequence */
0, /* (PyMappingMethods *) tp_as_mapping */
/* More standard operations (here for binary compatibility) */
0, /* (hashfunc) tp_hash */
0, /* (ternaryfunc) tp_call */
0, /* (reprfunc) tp_str */
0, /* (getattrofunc) tp_getattro */
0, /* (setattrofunc) tp_setattro */
/* Functions to access object as input/output buffer */
0, /* (PyBufferProcs *) tp_as_buffer */
/* Flags to define presence of optional/expanded features */
Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC | Py_TPFLAGS_BASETYPE,
_mysql_FieldObject__doc__, /* (char *) tp_doc Documentation string */
/* call function for all accessible objects */
(traverseproc)_mysql_FieldObject_traverse, /* tp_traverse */
/* delete references to contained objects */
(inquiry)_mysql_FieldObject_clear, /* tp_clear */
/* rich comparisons */
0, /* (richcmpfunc) tp_richcompare */
/* weak reference enabler */
0, /* (long) tp_weaklistoffset */
/* Iterators */
0, /* (getiterfunc) tp_iter */
0, /* (iternextfunc) tp_iternext */
/* Attribute descriptor and subclassing stuff */
(struct PyMethodDef *)_mysql_FieldObject_methods, /* tp_methods */
(struct PyMemberDef *)_mysql_FieldObject_memberlist, /*tp_members */
0, /* (struct getsetlist *) tp_getset; */
0, /* (struct _typeobject *) tp_base; */
0, /* (PyObject *) tp_dict */
0, /* (descrgetfunc) tp_descr_get */
0, /* (descrsetfunc) tp_descr_set */
0, /* (long) tp_dictoffset */
(initproc)_mysql_FieldObject_Initialize, /* tp_init */
NULL, /* tp_alloc */
NULL, /* tp_new */
NULL, /* tp_free Low-level free-memory routine */
0, /* (PyObject *) tp_bases */
0, /* (PyObject *) tp_mro method resolution order */
0, /* (PyObject *) tp_defined */
};