renier de bruyn wrote:
> UPDATE:
>
> So now I got this code:
>
> import pymongo
> from pyramid_mongo import get_db
>
> # translation for sorting between datatables api and mongodb
> order_dict = {'asc': 1, 'desc': -1}
>
>
> class DataTables_Handler(object):
> def __init__(self, request, columns, index, collection):
> self.columns = columns
> self.index = index
> self.db = get_db(request)
> self.collection = collection
>
> # values specified by the datatable for filtering, sorting, paging
> self.request_values = request.params
>
> # results from the db
> self.result_data = None
>
> # total in the table after filtering
> self.cardinality_filtered = 0
>
> # total in the table unfiltered
> self.cadinality = 0
>
> self.run_queries()
>
> def output_result(self):
> output = {}
> output['sEcho'] = str(int(self.request_values['sEcho']))
> output['iTotalRecords'] = str(self.cardinality)
> output['iTotalDisplayRecords'] = str(self.cardinality_filtered)
> aaData_rows = []
>
> for row in self.result_data:
> aaData_row = []
> for i in range(len(self.columns)):
>
> aaData_row.append(row[self.columns[i]].replace('"',
> '\\"'))
>
> # add additional rows here that are not represented in the
> # database aaData_row.append(('''<input id='%s'
> # type='checkbox'></input>''' % (str(row[ self.index
> # ]))).replace('\\', ''))
>
> aaData_rows.append(aaData_row)
>
> output['aaData'] = aaData_rows
>
> return output
>
> def run_queries(self):
>
> # pages has 'start' and 'length' attributes
> pages = self.paging()
>
> # the term you entered into the datatable search
> filters = self.filtering()
>
> # the document field you chose to sort
> sorting = self.sorting()
>
> # get result from db
> self.result_data = self.db.self.collection.find(spec=filters,
> skip=pages.start,
> limit=pages.length,
> sort=sorting)
>
> total_count =
> len(list(self.db.self.collection.find(spec=filters)))
>
> self.result_data = list(self.result_data)
>
> self.cardinality_filtered = total_count
>
> self.cardinality = len(list(self.db.self.collection.find()))
>
> def filtering(self):
>
> # build your filter spec
> filters = {}
> if (self.request_values.has_key('sSearch')) and
> (self.request_values['sSearch'] != ""):
>
> # the term put into search is logically concatenated with 'or'
> # between all columns
> or_filter_on_all_columns = []
>
> for i in range(len(self.columns)):
> column_filter = {}
> column_filter[self.columns[i]] = {'$regex':
> self.request_values['sSearch'], '$options': 'i'}
> or_filter_on_all_columns.append(column_filter)
> filters['$or'] = or_filter_on_all_columns
> return filters
>
> def sorting(self):
> order = []
> # mongo translation for sorting order
>
> if (self.request_values['iSortCol_0'] != "") and
> (self.request_values['iSortingCols'] > 0):
> order = []
> for i in range(int(self.request_values['iSortingCols'])):
>
order.append((self.columns[int(self.request_values['iSortCol_'
> + str(i)])], order_dict[self.request_values['sSortDir_' +
> str(i)]]))
> return order
>
> def paging(self):
> pages = namedtuple('pages', ['start', 'length'])
> if (self.request_values['iDisplayStart'] != "") and
> (self.request_values['iDisplayLength'] != -1):
> pages.start = int(self.request_values['iDisplayStart'])
> pages.length = int(self.request_values['iDisplayLength'])
> return pages
>
> with this code in the View:
>
> @view_config(
> route_name='candidates.list.json',
> renderer='json',
> permission='admin'
> )
> def candidate_list_json(context, request):
> columns = [ 'id_number', 'first_name', 'email', 'mobile_number']
> index_column = "id_number"
> collection = "candidates"
>
> results = DataTables_Handler(request, columns, index_column,
> collection).output_result()
>
> # return the results as a string for the datatable
> return {"results": results}
>
> and this in the template:
>
> <a id="btn-addteam" class="btn btn-success"
> href="{{'add_candidate'|route_url}}"><i class="icon-plus"></i> Add
> Candidate</a>
>
> ID Number Candidate Name Candidate email Mobile Number Health -->
>
> <script
> src="{{'kivu:static/datatables/jquery.dataTables.js'|
static_url}}"></script>
> <script
> src="{{'kivu:static/datatables/dataTables.scroller.js'|
static_url}}"></script>
> <script>
> $(document).ready(function() {
> url = "{{'candidates.list.json'|route_url}}";
> var oTable = $('#candidate_search').dataTable( {
> "bProcessing": true,
> "bServerSide": true,
> "sPaginationType": "full_numbers",
> "bjQueryUI": true,
> "sAjaxSource": url
> });
> } );</script>
>
> But its giving me a js error:
>
> TypeError: aData is undefined
> for ( var i=0, iLen=aData.length ; i<iLen ; i++ )
>
> my GET response returns:
>
> {"results": {"aaData": [], "iTotalRecords": "0", "sEcho": "1",
> {"iTotalDisplayRecords": "0"}}
>
> there is data in the database. What am I missing?
Could it have to do with the mismatch of 'aData' versus 'aaData'?
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