class ViewManager():
""" A sort of proxy that facilitate views modification and views queries. """
def __init__(self):
self.__view = None
self.__columns = None
self.__groupers = None
self.__sorters = None
self.__filters = None
'''
Set the view with the link_name. If a view is found, return the view found
'''
def set_view(self, link_name):
self.__view = View.query.filter_by(link_name=link_name).first()
if self.__view:
self.__columns = ViewColumn.query.filter_by(parent_id=self.__view.id).order_by(ViewColumn.id).all()
self.__groupers = ViewGrouper.query.filter_by(parent_id=self.__view.id).order_by(ViewGrouper.id).all()
self.__sorters = ViewSorter.query.filter_by(parent_id=self.__view.id).order_by(ViewSorter.id).all()
self.__filters = self.__view.filters
return self.__view
else:
return None
def set_view_dummy(self, datasource):
self.__view = View()
self.__view.datasource = datasource
def add_columns(self, columns, delete_before = False):
if delete_before:
for column in self.__columns:
db_session.delete(column)
for column in columns:
db_session.add(column)
db_session.commit()
def add_groupers(self, groupers, delete_before = False):
if delete_before:
for grouper in self.__groupers:
db_session.delete(grouper)
for grouper in groupers:
if grouper.column:
db_session.add(grouper)
db_session.commit()
def add_sorters(self, sorters, delete_before = False):
if delete_before:
for sorter in self.__sorters:
db_session.delete(sorter)
for sorter in sorters:
if sorter.column:
db_session.add(sorter)
db_session.commit()
def add_view(self, view):
db_session.add(view)
db_session.commit()
def add_filters(self, filters):
self.__view.filters = filters
db_session.commit()
def set_filters(self, filters):
self.__filters.set_filters(filters)
def set_extra_sorters(self, sorters):
for colname, order in sorters.items():
sorter = ViewSorter()
sorter.column = colname
sorter.sorter_option = order
[self.__sorters.remove(sorter_item) for sorter_item in self.__sorters if sorter_item.column == colname]
self.__sorters.append(sorter)
def update_filters(self, filters):
self.__view.filters.update(filters)
db_session.commit()
def get_filters(self):
return self.__filters
def get_columns_choices(self):
return get_columns_pairs(self.__view.datasource)
def get_columns(self):
return self.__columns
def get_sorters(self):
return self.__sorters
def get_sorters_columns(self):
lst_columns = []
for sorter in self.__sorters:
lst_columns.append(sorter.column)
return lst_columns
def get_groupers(self):
return self.__groupers
def get_filter_display(self, form):
lst_columns = cache_columns
lst_info = []
for option, fil_col_names in lst_columns.iteritems():
filter_name = option.replace("_option","")
col_names = filters[filter_name].column_names
filter_datasources = []
for col_name in col_names:
if painters.has_key(col_name):
filter_datasources = filter_datasources + painters[col_name].datasources
if self.__view.datasource in filter_datasources:
option_field = getattr(form, option)
fields = []
for col in fil_col_names:
fields.append(getattr(form, col))
lst_info.append(FilterFieldsInfo(option_field, fields))
return lst_info
def get_view(self):
return self.__view
def update_view(self, view):
self.__view.update_view(view)
db_session.commit()
class ViewManager():
""" A sort of proxy that facilitate views modification and views queries. """
def __init__(self):
self.__view = None
self.__columns = None
self.__groupers = None
self.__sorters = None
self.__filters = None
'''
Set the view with the link_name. If a view is found, return the view found
'''
def set_view(self, link_name):
self.__view = View.query.filter_by(link_name=link_name).first()
if self.__view:
self.__columns = ViewColumn.query.filter_by(
parent_id=self.__view.id).order_by(ViewColumn.id).all()
self.__groupers = ViewGrouper.query.filter_by(
parent_id=self.__view.id).order_by(ViewGrouper.id).all()
self.__sorters = ViewSorter.query.filter_by(
parent_id=self.__view.id).order_by(ViewSorter.id).all()
self.__filters = self.__view.filters
return self.__view
else:
return None
def set_view_dummy(self, datasource):
self.__view = View()
self.__view.datasource = datasource
def add_columns(self, columns, delete_before=False):
if delete_before:
for column in self.__columns:
db_session.delete(column)
for column in columns:
db_session.add(column)
db_session.commit()
def add_groupers(self, groupers, delete_before=False):
if delete_before:
for grouper in self.__groupers:
db_session.delete(grouper)
for grouper in groupers:
if grouper.column:
db_session.add(grouper)
db_session.commit()
def add_sorters(self, sorters, delete_before=False):
if delete_before:
for sorter in self.__sorters:
db_session.delete(sorter)
for sorter in sorters:
if sorter.column:
db_session.add(sorter)
db_session.commit()
def add_view(self, view):
db_session.add(view)
db_session.commit()
def add_filters(self, filters):
self.__view.filters = filters
db_session.commit()
def set_filters(self, filters):
self.__filters.set_filters(filters)
def set_extra_sorters(self, sorters):
for colname, order in sorters.items():
sorter = ViewSorter()
sorter.column = colname
sorter.sorter_option = order
[
self.__sorters.remove(sorter_item)
for sorter_item in self.__sorters
if sorter_item.column == colname
]
self.__sorters.append(sorter)
def update_filters(self, filters):
self.__view.filters.update(filters)
db_session.commit()
def get_filters(self):
return self.__filters
def get_hidden_filters(self):
filters_tuples = []
filters_obj = self.__filters
for option, fil_col_names in cache_columns.iteritems():
if getattr(filters_obj, option) == 'hide':
filter_name = option.replace("_option", "")
column_name = filters[filter_name].column_names
filters_tuples.append((filter_name, column_name[0]))
return filters_tuples
def get_columns_choices(self):
return get_columns_pairs(self.__view.datasource)
def get_links_choices(self):
views = View.query.all()
links_choices = []
links_choices.append(('', ''))
for x in views:
if x.link_title:
if not self.__view or not self.__view.link_title == x.link_title:
links_choices.append((x.link_name, x.link_title))
else:
if not self.__view or not self.__view.link_name == x.link_name:
links_choices.append((x.link_name, x.title))
return links_choices
def get_columns(self):
return self.__columns
def get_sorters(self):
return self.__sorters
def get_sorters_columns(self):
lst_columns = []
for sorter in self.__sorters:
lst_columns.append(sorter.column)
return lst_columns
def get_groupers(self):
return self.__groupers
def get_filter_display(self, form):
lst_columns = cache_columns
lst_info = []
for option, fil_col_names in lst_columns.iteritems():
filter_name = option.replace("_option", "")
col_names = filters[filter_name].column_names
filter_datasources = []
for col_name in col_names:
if painters.has_key(col_name):
filter_datasources = filter_datasources + painters[
col_name].datasources
if self.__view.datasource in filter_datasources:
option_field = getattr(form, option)
fields = []
for col in fil_col_names:
fields.append(getattr(form, col))
lst_info.append(FilterFieldsInfo(option_field, fields))
return lst_info
def get_view(self):
return self.__view
def update_view(self, view):
self.__view.update_view(view)
db_session.commit()
