本文整理汇总了Python中stoqlib.database.queryexecuter.QueryExecuter.add_query_callback方法的典型用法代码示例。如果您正苦于以下问题：Python QueryExecuter.add_query_callback方法的具体用法？Python QueryExecuter.add_query_callback怎么用？Python QueryExecuter.add_query_callback使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类stoqlib.database.queryexecuter.QueryExecuter的用法示例。
在下文中一共展示了QueryExecuter.add_query_callback方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: LoanSelectionStep
# 需要导入模块: from stoqlib.database.queryexecuter import QueryExecuter [as 别名]
# 或者: from stoqlib.database.queryexecuter.QueryExecuter import add_query_callback [as 别名]
class LoanSelectionStep(BaseWizardStep):
gladefile = 'HolderTemplate'
def __init__(self, wizard, store):
BaseWizardStep.__init__(self, store, wizard)
self.setup_slaves()
def _create_filters(self):
self.search.set_text_field_columns(['client_name'])
def _get_columns(self):
return [IdentifierColumn('identifier', sorted=True),
SearchColumn('responsible_name', title=_(u'Responsible'),
data_type=str, expand=True),
SearchColumn('client_name', title=_(u'Client'),
data_type=str, expand=True),
SearchColumn('open_date', title=_(u'Opened'),
data_type=datetime.date),
SearchColumn('expire_date', title=_(u'Expire'),
data_type=datetime.date),
Column('loaned', title=_(u'Loaned'),
data_type=Decimal),
]
def _refresh_next(self, value=None):
can_continue = False
selected_rows = self.search.results.get_selected_rows()
if selected_rows:
client = selected_rows[0].client_id
branch = selected_rows[0].branch_id
# Only loans that belong to the same client and are from the same
# branch can be closed together
can_continue = all(v.client_id == client and v.branch_id == branch
for v in selected_rows)
self.wizard.refresh_next(can_continue)
def get_extra_query(self, states):
return LoanView.status == Loan.STATUS_OPEN
def setup_slaves(self):
self.search = SearchSlave(self._get_columns(),
restore_name=self.__class__.__name__)
self.search.enable_advanced_search()
self.attach_slave('place_holder', self.search)
self.executer = QueryExecuter(self.store)
self.search.set_query_executer(self.executer)
self.executer.set_table(LoanView)
self.executer.add_query_callback(self.get_extra_query)
self._create_filters()
self.search.results.connect('selection-changed',
self._on_results_selection_changed)
self.search.results.set_selection_mode(gtk.SELECTION_MULTIPLE)
self.search.focus_search_entry()
#
# WizardStep
#
def has_previous_step(self):
return False
def post_init(self):
self.register_validate_function(self._refresh_next)
self.force_validation()
def next_step(self):
# FIXME: For some reason, the loan isn't in self.store
views = self.search.results.get_selected_rows()
self.wizard.models = [self.store.fetch(v.loan) for v in views]
return LoanItemSelectionStep(self.wizard, self, self.store,
self.wizard.models)
#
# Callbacks
#
def _on_results_selection_changed(self, widget, selection):
self._refresh_next()