root/trunk/midgard/apis/python/py_midgard_object_class.c

/* 
 * Copyright (C) 2007 Piotr Pokora <piotrek.pokora@gmail.com>
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as published
 * by the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#define NO_IMPORT_PYGOBJECT
#include "py_midgard.h"

static PyObject *
pymidgard_object_class_factory(PyGObject *self, PyObject *args) 
{
        PyObject *pvalue = NULL;
        const gchar *classname;
        const gchar *guid;
        guint id;
        MgdObject *mobject = NULL; 

        if(!PyArg_ParseTuple(args, "s|O", &classname, &pvalue))
                return NULL;

        MidgardConnection *mgd =
                _py_midgard_connection_singleton_get();

        if(pvalue == NULL) {

                mobject = midgard_object_new(mgd, classname, NULL);

        } else {

                GValue gval = gvalue_from_pyobject(pvalue);
                pyg_value_from_pyobject(&gval, pvalue);
                
                if(G_IS_VALUE(&gval)) 
                        mobject = midgard_object_new(mgd, classname, &gval);
                        
                g_value_unset(&gval);
        }

        if(mobject == NULL)
                PyErr_SetString(PyExc_SystemError, "Failed to initialize new object");

        /* TODO , check if this might be optimized */
        GValue gval = {0, };
        g_value_init(&gval, G_TYPE_OBJECT);
        g_value_set_object(&gval, G_OBJECT(mobject));
        PyObject *pval = pyg_value_as_pyobject((const GValue *)&gval, FALSE);   
        
        return pval;
}
        
static PyObject *
pymidgard_object_class_get_primary_property(PyGObject *self, PyObject *args) 
{
        //CHECK_MGD;
        const gchar *classname;

        if(!PyArg_ParseTuple(args, "s", &classname))
                return NULL;
        
        GObjectClass *klass = g_type_class_peek(g_type_from_name(classname));
        if(klass == NULL)
                return NULL;

        const gchar *pname = 
                midgard_object_class_get_primary_property(MIDGARD_OBJECT_CLASS(klass));

        if(pname == NULL)
                Py_RETURN_NONE;

        return Py_BuildValue("s", pname); 
}

static PyObject *
pymidgard_object_class_get_property_parent(PyGObject *self, PyObject *args) 
{
        //CHECK_MGD;
        const gchar *classname;

        if(!PyArg_ParseTuple(args, "s", &classname))
                return NULL;
        
        GObjectClass *klass = g_type_class_peek(g_type_from_name(classname));
        if(klass == NULL)
                return NULL;

        const gchar *pname = 
                midgard_object_class_get_property_parent(MIDGARD_OBJECT_CLASS(klass));

        if(pname == NULL)
                Py_RETURN_NONE;

        return Py_BuildValue("s", pname); 
}

static PyObject *
pymidgard_object_class_get_property_up(PyGObject *self, PyObject *args) 
{
        //CHECK_MGD;
        const gchar *classname;

        if(!PyArg_ParseTuple(args, "s", &classname))
                return NULL;
        
        GObjectClass *klass = g_type_class_peek(g_type_from_name(classname));
        if(klass == NULL)
                return NULL;

        const gchar *pname = 
                midgard_object_class_get_property_up(MIDGARD_OBJECT_CLASS(klass));

        if(pname == NULL)
                Py_RETURN_NONE;

        return Py_BuildValue("s", pname); 
}

static PyObject *
pymidgard_object_class_list_children(PyGObject *self, PyObject *args) 
{
        //CHECK_MGD;
        const gchar *classname;

        if(!PyArg_ParseTuple(args, "s", &classname))
                return NULL;

        GObjectClass *klass = g_type_class_peek(g_type_from_name(classname));
        if(klass == NULL)
                return NULL;

        MidgardObjectClass **klases =
                midgard_object_class_list_children(MIDGARD_OBJECT_CLASS(klass));

        guint i = 0;
        if(klases == NULL) {

                PyObject *list = PyTuple_New(i);
                return list;
        }

        while(klases[i] != NULL)
                i++;
        
        PyObject *list = PyTuple_New(i);
        i = 0;
        while(klases[i] != NULL) {
        
                const gchar *cname = G_OBJECT_CLASS_NAME(klases[i]);
                PyObject *strname = PyString_FromString(cname);
                PyTuple_SetItem(list, i, strname);
                i++;
        }

        return list;
}

static PyObject *
pymidgard_object_class_get_object_by_guid(PyGObject *self, PyObject *args)
{
        const gchar *guid;
        
        if(!PyArg_ParseTuple(args, "s", &guid))
                return NULL;

        MidgardConnection *mgd =
                _py_midgard_connection_singleton_get();

        MgdObject *mobject = midgard_object_class_get_object_by_guid(mgd, guid);

        /* TODO , check if this migh tbe optimized */
        GValue gval = {0, };
        g_value_init(&gval, G_TYPE_OBJECT);
        g_value_set_object(&gval, G_OBJECT(mobject));
        PyObject *pvalue = pyg_value_as_pyobject((const GValue *)&gval, FALSE);

        return pvalue;
}

static PyObject *
pymidgard_object_class_get_object_by_path(PyGObject *self, PyObject *args)
{
        const gchar *path;
        const gchar *classname;
        
        if(!PyArg_ParseTuple(args, "ss", &classname, &path))
                return NULL;

        MidgardConnection *mgd =
                _py_midgard_connection_singleton_get();

        MgdObject *mobject = 
                midgard_object_class_get_object_by_path(mgd, classname, path);

        /* TODO , check if this might be optimized */
        GValue gval = {0, };
        g_value_init(&gval, G_TYPE_OBJECT);
        g_value_set_object(&gval, G_OBJECT(mobject));
        PyObject *pvalue = pyg_value_as_pyobject((const GValue *)&gval, FALSE);

        return pvalue;
}

static PyObject *
pymidgard_object_class_is_multilang(PyGObject *self, PyObject *args)
{       
        const gchar *classname;

        if(!PyArg_ParseTuple(args, "s", &classname))
                return NULL;

        MidgardConnection *mgd =
                _py_midgard_connection_singleton_get();
        
        MidgardObjectClass *klass = MIDGARD_OBJECT_GET_CLASS_BY_NAME(classname);

        if(!klass)
                Py_RETURN_NONE; /* FIXME */

        if(midgard_object_class_is_multilang(klass))
                Py_RETURN_TRUE;

        Py_RETURN_FALSE;
}

static PyObject *
pymidgard_object_class_undelete(PyGObject *self, PyObject *args)
{       
        const gchar *guid;

        if(!PyArg_ParseTuple(args, "s", &guid))
                return NULL;

        MidgardConnection *mgd =
                _py_midgard_connection_singleton_get();

        if(midgard_object_class_undelete(mgd, guid))
                Py_RETURN_TRUE;

        Py_RETURN_FALSE;
}

static PyMethodDef pymidgard_object_class_methods[] = {
        { "factory",
                (PyCFunction)pymidgard_object_class_factory, METH_VARARGS | METH_STATIC},
        { "get_primary_property", 
                (PyCFunction)pymidgard_object_class_get_primary_property, METH_VARARGS | METH_STATIC},
        { "get_property_parent", 
                (PyCFunction)pymidgard_object_class_get_property_parent, METH_VARARGS | METH_STATIC},
        { "get_property_up", 
                (PyCFunction)pymidgard_object_class_get_property_up, METH_VARARGS | METH_STATIC},
        { "list_children",
                (PyCFunction)pymidgard_object_class_list_children, METH_VARARGS | METH_STATIC},
        { "get_object_by_guid",
                (PyCFunction)pymidgard_object_class_get_object_by_guid, METH_VARARGS | METH_STATIC},
        { "is_multilang",
                (PyCFunction)pymidgard_object_class_is_multilang, METH_VARARGS | METH_STATIC},
        { "get_object_by_path",
                (PyCFunction)pymidgard_object_class_get_object_by_path, METH_VARARGS | METH_STATIC},
        { "undelete",
                (PyCFunction)pymidgard_object_class_undelete, METH_VARARGS | METH_STATIC},

        { NULL, NULL, 0 }
};

PyTypeObject G_GNUC_INTERNAL Pymidgard_object_class_Type = {
    PyObject_HEAD_INIT(NULL)
    0,                                 /* ob_size */
    "object_class",                   /* tp_name */
    sizeof(PyGObject),          /* tp_basicsize */
    0,                                 /* tp_itemsize */
    /* methods */
    (destructor)0,        /* tp_dealloc */
    (printfunc)0,                      /* tp_print */
    (getattrfunc)0,       /* tp_getattr */
    (setattrfunc)0,       /* tp_setattr */
    (cmpfunc)0,           /* tp_compare */
    (reprfunc)0,             /* tp_repr */
    (PyNumberMethods*)0,     /* tp_as_number */
    (PySequenceMethods*)0, /* tp_as_sequence */
    (PyMappingMethods*)0,   /* tp_as_mapping */
    (hashfunc)0,             /* tp_hash */
    (ternaryfunc)0,          /* tp_call */
    (reprfunc)0,              /* tp_str */
    (getattrofunc)0,     /* tp_getattro */
    (setattrofunc)0,     /* tp_setattro */
    (PyBufferProcs*)0,  /* tp_as_buffer */
    Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE,                      /* tp_flags */
    NULL,                        /* Documentation string */
    (traverseproc)0,     /* tp_traverse */
    (inquiry)0,             /* tp_clear */
    (richcmpfunc)0,   /* tp_richcompare */
    offsetof(PyGObject, weakreflist),             /* tp_weaklistoffset */
    (getiterfunc)0,          /* tp_iter */
    (iternextfunc)0,     /* tp_iternext */
    pymidgard_object_class_methods, /* tp_methods */
    (struct PyMemberDef*)0,              /* tp_members */
    (struct PyGetSetDef*)0,  /* tp_getset */
    NULL,                              /* tp_base */
    NULL,                              /* tp_dict */
    (descrgetfunc)0,    /* tp_descr_get */
    (descrsetfunc)0,    /* tp_descr_set */
    offsetof(PyGObject, inst_dict),                 /* tp_dictoffset */
    (initproc)0,             /* tp_init */
    (allocfunc)0,           /* tp_alloc */
    (newfunc)0,               /* tp_new */
    (freefunc)0,             /* tp_free */
    (inquiry)0              /* tp_is_gc */
};

void py_midgard_object_class_register_class(
                PyObject *d, gpointer pygobject_type)
{
        pygobject_register_class(d, 
                        "object_class", 
                        MIDGARD_TYPE_OBJECT, 
                        &Pymidgard_object_class_Type, 
                        Py_BuildValue("(O)", pygobject_type));
}