group.py

from email.utils import parseaddr
from sqlalchemy import not_
from pyramid.view import (
    view_config,
    )
from pyramid.httpexceptions import (
    HTTPFound,
    )
import colander
from deform import (
    Form,
    widget,
    ValidationFailure,
    )
from ..models import (
    DBSession,
    Group,
    GroupRoutePermission,
    UserGroup,
    Route,
)

from datatables import (
    ColumnDT, DataTables)

SESS_ADD_FAILED = 'Gagal tambah rekening'
SESS_EDIT_FAILED = 'Gagal edit rekening'

########                    
# List #
########    
@view_config(route_name='group', renderer='templates/group/list.pt',
             permission='edit')
def view_list(request):
    return dict(rows={})
    

#######    
# Add #
#######
def form_validator(form, value):
    def err_name():
        raise colander.Invalid(form,
            'Nama %s sudah digunakan oleh ID %d' % (
                value['groip_name'], found.id))

    if 'id' in form.request.matchdict:
        uid = form.request.matchdict['id']
        q = DBSession.query(Group).filter_by(id=uid)
        r = q.first()
    else:
        r = None
    q = DBSession.query(Group).filter_by(group_name=value['group_name'])
    found = q.first()
    if r:
        if found and found.id != r.id:
            err_name()
    elif found:
        err_name()

class AddSchema(colander.Schema):
    group_name   = colander.SchemaNode(
                    colander.String(),
                              )
    description = colander.SchemaNode(
                    colander.String(),
                    missing=colander.drop,
                    widget=widget.TextAreaWidget(rows=10, cols=60),
                    )
    

class EditSchema(AddSchema):
    id = colander.SchemaNode(colander.Integer(),
            missing=colander.drop,
            widget=widget.HiddenWidget(readonly=True))
                    

def get_form(request, class_form):
    schema = class_form(validator=form_validator)
    schema.request = request
    return Form(schema, buttons=('simpan','batal'))
    
def save(values, row=None):
    if not row:
        row = Group()
    row.from_dict(values)
    #if values['password']:
    #    row.password = values['password']
    DBSession.add(row)
    DBSession.flush()
    return row
    
def save_request(values, request, row=None):
    if 'id' in request.matchdict:
        values['id'] = request.matchdict['id']
    print "****",values, "****", request
    row = save(values, row)
    request.session.flash('Group %s sudah disimpan.' % row.group_name)
        
def route_list(request):
    return HTTPFound(location=request.route_url('group'))
    
def session_failed(request, session_name):
    r = dict(form=request.session[session_name])
    del request.session[session_name]
    return r
    
@view_config(route_name='group-add', renderer='templates/group/add.pt',
             permission='add')
def view_add(request):
    form = get_form(request, AddSchema)
    if request.POST:
        if 'simpan' in request.POST:
            controls = request.POST.items()
            try:
                c = form.validate(controls)
            except ValidationFailure, e:
                return dict(form=form)
                #request.session[SESS_ADD_FAILED] = e.render()               
                return HTTPFound(location=request.route_url('group-add'))
            save_request(dict(controls), request)
        return route_list(request)
    elif SESS_ADD_FAILED in request.session:
        return session_failed(request, SESS_ADD_FAILED)
    return dict(form=form)#.render())

########
# Edit #
########
def query_id(request):
    return DBSession.query(Group).filter_by(id=request.matchdict['id'])
    
def id_not_found(request):    
    msg = 'Rekening ID %s not found.' % request.matchdict['id']
    request.session.flash(msg, 'error')
    return route_list(request)

@view_config(route_name='group-edit', renderer='templates/group/edit.pt',
             permission='edit')
def view_edit(request):
    row = query_id(request).first()
    if not row:
        return id_not_found(request)
    form = get_form(request, EditSchema)
    if request.POST:
        if 'simpan' in request.POST:
            controls = request.POST.items()
            try:
                c = form.validate(controls)
            except ValidationFailure, e:
                return dict(form=form)
                #request.session[SESS_EDIT_FAILED] = e.render()               
                return HTTPFound(location=request.route_url('group-edit',
                                  id=row.id))
            save_request(dict(controls), request, row)
        return route_list(request)
    elif SESS_EDIT_FAILED in request.session:
        return session_failed(request, SESS_EDIT_FAILED)
    values = row.to_dict()
    #print values
    form.set_appstruct(values)
    return dict(form=form)#.render(appstruct=values))

##########
# Delete #
##########    
@view_config(route_name='group-delete', renderer='templates/group/delete.pt',
             permission='delete')
def view_delete(request):
    q = query_id(request)
    row = q.first()
    id = row.id
    
    x = DBSession.query(UserGroup).filter(UserGroup.group_id==id).first()
    if x:
        request.session.flash('Tidak bisa dihapus, Karena datanya terpakai diusergroup.','error')
        return route_list(request)
        
    y = DBSession.query(GroupRoutePermission).filter(GroupRoutePermission.group_id==id).first()
    if y:
        request.session.flash('Tidak bisa dihapus, Karena datanya terpakai di group permission.','error')
        return route_list(request)
        
    if not row:
        return id_not_found(request)
    form = Form(colander.Schema(), buttons=('delete','cancel'))
    if request.POST:
        if 'delete' in request.POST:
                msg = 'Group ID %d %s has been deleted.' % (row.id, row.group_name)
                q.delete()
                DBSession.flush()
                request.session.flash(msg)
        return route_list(request)
    return dict(row=row,
                 form=form.render())

##########
# Action #
##########    
@view_config(route_name='group-act', renderer='json',
             permission='read')
def view_act(request):
    req      = request
    params   = req.params
    url_dict = req.matchdict

    if url_dict['act']=='grid':
        columns = []
        columns.append(ColumnDT('id'))
        columns.append(ColumnDT('group_name'))
        columns.append(ColumnDT('description'))
        columns.append(ColumnDT('member_count'))
        query = DBSession.query(Group)
        rowTable = DataTables(req, Group, query, columns)
        return rowTable.output_result()

    ## Hon Group
    elif url_dict['act']=='hon':
        term = 'term' in params and params['term'] or '' 
        rows = DBSession.query(Group.id, Group.group_name
                  ).filter(
                  Group.group_name.ilike('%%%s%%' % term) ).all()
        r = []
        for k in rows:
            d={}
            d['id']          = k[0]
            d['value']       = k[1]
            r.append(d)
        return r                  
        
    ## Hon Route
    elif url_dict['act']=='hon':
        term = 'term' in params and params['term'] or '' 
        rows = DBSession.query(Route.id, Route.nama
                  ).filter(
                  Route.nama.ilike('%{term}%'.format(term=term)),
                  Route.perm_name != None).\
                  order_by(Route.nama).all()
        print rows
        r = []
        for k in rows:
            d={}
            d['id']          = k[0]
            d['value']       = k[1]
            r.append(d)
        return r