#!/usr/bin/env python # -*- coding: utf-8 -*- import csv import datetime import json import logging import optparse import re from copy import copy, deepcopy from tempfile import NamedTemporaryFile from django.conf import settings from django.contrib.gis.geos import GEOSException from django.contrib.postgres.search import SearchQuery from django.contrib.staticfiles.templatetags.staticfiles import static from django.core.exceptions import ObjectDoesNotExist from django.core.urlresolvers import reverse, NoReverseMatch from django.db.models import Q, ImageField from django.db.models.fields import FieldDoesNotExist from django.http import HttpResponse from django.shortcuts import render from django.template import loader from django.utils.translation import ugettext, ugettext_lazy as _ from tidylib import tidy_document as tidy from unidecode import unidecode from weasyprint import HTML, CSS from weasyprint.fonts import FontConfiguration from xhtml2odt import xhtml2odt from ishtar_common.utils import check_model_access_control, CSV_OPTIONS, \ get_all_field_names from ishtar_common.models import HistoryError, get_current_profile, \ PRIVATE_FIELDS from menus import Menu import models from archaeological_files.models import File from archaeological_operations.models import Operation from archaeological_context_records.models import ContextRecord from archaeological_finds.models import Find, FindBasket, Treatment, \ TreatmentFile logger = logging.getLogger(__name__) ENCODING = settings.ENCODING or 'utf-8' CURRENT_ITEM_KEYS = (('file', File), ('operation', Operation), ('contextrecord', ContextRecord), ('find', Find), ('treatmentfile', TreatmentFile), ('treatment', Treatment)) CURRENT_ITEM_KEYS_DICT = dict(CURRENT_ITEM_KEYS) def get_autocomplete_item(model, extra=None): if not extra: extra = {} def func(request, current_right=None): q = request.GET.get('term') or "" query = Q(**extra) for q in q.split(' '): if not q: continue query = query & Q(cached_label__icontains=q) limit = 20 objects = model.objects.filter(query)[:limit] data = json.dumps([{'id': obj.pk, 'value': obj.cached_label} for obj in objects]) return HttpResponse(data, content_type='text/plain') return func def check_permission(request, action_slug, obj_id=None): MAIN_MENU = Menu(request.user) MAIN_MENU.init() if action_slug not in MAIN_MENU.items: # TODO return True if obj_id: return MAIN_MENU.items[action_slug].is_available( request.user, obj_id, session=request.session) return MAIN_MENU.items[action_slug].can_be_available( request.user, session=request.session) def new_item(model, frm, many=False): def func(request, parent_name, limits=''): model_name = model._meta.object_name if not check_permission(request, 'add_' + model_name.lower()): not_permitted_msg = ugettext(u"Operation not permitted.") return HttpResponse(not_permitted_msg) dct = {'title': unicode(_(u'New %s' % model_name.lower())), 'many': many} if request.method == 'POST': dct['form'] = frm(request.POST, limits=limits) if dct['form'].is_valid(): new_item = dct['form'].save(request.user) dct['new_item_label'] = unicode(new_item) dct['new_item_pk'] = new_item.pk dct['parent_name'] = parent_name dct['parent_pk'] = parent_name if dct['parent_pk'] and '_select_' in dct['parent_pk']: parents = dct['parent_pk'].split('_') dct['parent_pk'] = "_".join([parents[0]] + parents[2:]) return render(request, 'window.html', dct) else: dct['form'] = frm(limits=limits) return render(request, 'window.html', dct) return func def display_item(model, extra_dct=None, show_url=None): def func(request, pk, **dct): if show_url: dct['show_url'] = "/{}{}/".format(show_url, pk) else: dct['show_url'] = "/show-{}/{}/".format(model.SLUG, pk) return render(request, 'ishtar/display_item.html', dct) return func def show_item(model, name, extra_dct=None): def func(request, pk, **dct): allowed, own = check_model_access_control(request, model) if not allowed: return HttpResponse('', content_type="application/xhtml") q = model.objects if own: query_own = model.get_query_owns(request.user) if query_own: q = q.filter(query_own) try: item = q.get(pk=pk) except ObjectDoesNotExist: return HttpResponse('NOK') doc_type = 'type' in dct and dct.pop('type') url_name = u"/".join(reverse('show-' + name, args=['0', ''] ).split('/')[:-2]) + u"/" dct['CURRENCY'] = get_current_profile().currency dct['ENCODING'] = settings.ENCODING dct['DOT_GENERATION'] = settings.DOT_BINARY and True dct['current_window_url'] = url_name date = None if 'date' in dct: date = dct.pop('date') dct['sheet_id'] = "%s-%d" % (name, item.pk) dct['window_id'] = "%s-%d-%s" % ( name, item.pk, datetime.datetime.now().strftime('%M%s')) if hasattr(item, 'history'): if date: try: date = datetime.datetime.strptime(date, '%Y-%m-%dT%H:%M:%S.%f') item = item.get_previous(date=date) assert item is not None except (ValueError, AssertionError): return HttpResponse(None, content_type='text/plain') dct['previous'] = item._previous dct['next'] = item._next else: historized = item.history.all() if historized: item.history_date = historized[0].history_date if len(historized) > 1: dct['previous'] = historized[1].history_date dct['item'], dct['item_name'] = item, name # add context if extra_dct: dct.update(extra_dct(request, item)) context_instance = deepcopy(dct) context_instance['output'] = 'html' if hasattr(item, 'history_object'): filename = item.history_object.associated_filename else: filename = item.associated_filename if doc_type == "odt" and settings.ODT_TEMPLATE: tpl = loader.get_template('ishtar/sheet_%s.html' % name) context_instance['output'] = 'ODT' content = tpl.render(context_instance, request) try: tidy_options = {'output-xhtml': 1, 'indent': 1, 'tidy-mark': 0, 'doctype': 'auto', 'add-xml-decl': 1, 'wrap': 1} html, errors = tidy(content, options=tidy_options) html = html.encode('utf-8').replace(" ", " ") html = re.sub(']*)>\n', '', html) odt = NamedTemporaryFile() options = optparse.Values() options.with_network = True for k, v in (('input', ''), ('output', odt.name), ('template', settings.ODT_TEMPLATE), ('with_network', True), ('top_header_level', 1), ('img_width', '8cm'), ('img_height', '6cm'), ('verbose', False), ('replace_keyword', 'ODT-INSERT'), ('cut_start', 'ODT-CUT-START'), ('htmlid', None), ('url', "#")): setattr(options, k, v) odtfile = xhtml2odt.ODTFile(options) odtfile.open() odtfile.import_xhtml(html) odtfile = odtfile.save() except xhtml2odt.ODTExportError: return HttpResponse(content, content_type="application/xhtml") response = HttpResponse( content_type='application/vnd.oasis.opendocument.text') response['Content-Disposition'] = 'attachment; filename=%s.odt' % \ filename response.write(odtfile) return response elif doc_type == 'pdf': tpl = loader.get_template('ishtar/sheet_%s_pdf.html' % name) context_instance['output'] = 'PDF' html = tpl.render(context_instance, request) font_config = FontConfiguration() css = CSS(string=''' @font-face { font-family: Gentium; src: url(%s); } body{ font-family: Gentium } ''' % (static("gentium/GentiumPlus-R.ttf"))) css2 = CSS(filename=settings.STATIC_ROOT + '/media/style_basic.css') pdf = HTML(string=html, base_url=request.build_absolute_uri() ).write_pdf(stylesheets=[css, css2], font_config=font_config) response = HttpResponse(pdf, content_type='application/pdf') response['Content-Disposition'] = 'attachment; filename=%s.pdf' % \ filename return response else: tpl = loader.get_template('ishtar/sheet_%s_window.html' % name) content = tpl.render(context_instance, request) return HttpResponse(content, content_type="application/xhtml") return func def revert_item(model): def func(request, pk, date, **dct): try: item = model.objects.get(pk=pk) date = datetime.datetime.strptime(date, '%Y-%m-%dT%H:%M:%S.%f') item.rollback(date) except (ObjectDoesNotExist, ValueError, HistoryError): return HttpResponse(None, content_type='text/plain') return HttpResponse("True", content_type='text/plain') return func HIERARCHIC_LEVELS = 5 HIERARCHIC_FIELDS = ['periods', 'period', 'unit', 'material_types', 'material_type', 'conservatory_state', 'object_types'] def _get_values(request, val): if hasattr(val, 'all'): # manage related objects vals = list(val.all()) else: vals = [val] new_vals = [] for v in vals: if callable(v): v = v() if hasattr(v, 'url'): v = request.is_secure() and \ 'https' or 'http' + '://' + \ request.get_host() + v.url new_vals.append(v) return new_vals def _search_manage_search_vector(dct): if 'search_vector' in dct: dct['search_vector'] = SearchQuery( unidecode(dct['search_vector']), config=settings.ISHTAR_SEARCH_LANGUAGE ) return dct def _format_val(val): if val is None: return u"" if type(val) == bool: if val: return unicode(_(u"True")) else: return unicode(_(u"False")) if type(val) == str: val = val.decode('utf-8') return unicode(val) DEFAULT_ROW_NUMBER = 10 # length is used by ajax DataTables requests EXCLUDED_FIELDS = ['length'] def get_item(model, func_name, default_name, extra_request_keys=[], base_request=None, bool_fields=[], reversed_bool_fields=[], dated_fields=[], associated_models=[], relative_session_names=[], specific_perms=[], own_table_cols=None, relation_types_prefix={}, do_not_deduplicate=False): """ Generic treatment of tables :param model: model used for query :param func_name: name of the function (used for session storage) :param default_name: key used for default search in session :param extra_request_keys: default query limitation :param base_request: :param bool_fields: :param reversed_bool_fields: :param dated_fields: :param associated_models: :param relative_session_names: :param specific_perms: :param own_table_cols: :param relation_types_prefix: :param do_not_deduplicate: duplication of id can occurs on large queryset a mecanism of deduplication is used. But duplicate ids can be normal (for instance for record_relations view). :return: """ def func(request, data_type='json', full=False, force_own=False, col_names=None, **dct): available_perms = [] if specific_perms: available_perms = specific_perms[:] EMPTY = '' if 'type' in dct: data_type = dct.pop('type') if not data_type: EMPTY = '[]' data_type = 'json' allowed, own = check_model_access_control(request, model, available_perms) if not allowed: return HttpResponse(EMPTY, content_type='text/plain') if force_own: own = True if full == 'shortcut' and 'SHORTCUT_SEARCH' in request.session and \ request.session['SHORTCUT_SEARCH'] == 'own': own = True # get defaults from model if not extra_request_keys and hasattr(model, 'EXTRA_REQUEST_KEYS'): my_extra_request_keys = copy(model.EXTRA_REQUEST_KEYS) else: my_extra_request_keys = copy(extra_request_keys) if base_request is None and hasattr(model, 'BASE_REQUEST'): my_base_request = copy(model.BASE_REQUEST) elif base_request is not None: my_base_request = copy(base_request) else: my_base_request = {} if not bool_fields and hasattr(model, 'BOOL_FIELDS'): my_bool_fields = model.BOOL_FIELDS[:] else: my_bool_fields = bool_fields[:] if not reversed_bool_fields and hasattr(model, 'REVERSED_BOOL_FIELDS'): my_reversed_bool_fields = model.REVERSED_BOOL_FIELDS[:] else: my_reversed_bool_fields = reversed_bool_fields[:] if not dated_fields and hasattr(model, 'DATED_FIELDS'): my_dated_fields = model.DATED_FIELDS[:] else: my_dated_fields = dated_fields[:] if not associated_models and hasattr(model, 'ASSOCIATED_MODELS'): my_associated_models = model.ASSOCIATED_MODELS[:] else: my_associated_models = associated_models[:] if not relative_session_names and hasattr(model, 'RELATIVE_SESSION_NAMES'): my_relative_session_names = model.RELATIVE_SESSION_NAMES[:] else: my_relative_session_names = relative_session_names[:] if not relation_types_prefix and hasattr(model, 'RELATION_TYPES_PREFIX'): my_relation_types_prefix = copy(model.RELATION_TYPES_PREFIX) else: my_relation_types_prefix = copy(relation_types_prefix) fields = [model._meta.get_field(k) for k in get_all_field_names(model)] request_keys = dict([ (field.name, field.name + (hasattr(field, 'rel') and field.rel and '__pk' or '')) for field in fields]) for associated_model, key in my_associated_models: if type(associated_model) in (str, unicode): if associated_model not in globals(): continue associated_model = globals()[associated_model] associated_fields = [ associated_model._meta.get_field(k) for k in get_all_field_names(associated_model)] request_keys.update( dict([(key + "__" + field.name, key + "__" + field.name + (hasattr(field, 'rel') and field.rel and '__pk' or '')) for field in associated_fields])) request_keys.update(my_extra_request_keys) request_items = request.method == 'POST' and request.POST \ or request.GET # pager try: row_nb = int(request_items.get('length')) except (ValueError, TypeError): row_nb = DEFAULT_ROW_NUMBER dct_request_items = {} # filter requested fields for k in request_items: if k in EXCLUDED_FIELDS: continue key = k[:] if key.startswith('searchprefix_'): key = key[len('searchprefix_'):] dct_request_items[key] = request_items[k] request_items = dct_request_items dct = my_base_request if full == 'shortcut': dct['cached_label__icontains'] = request.GET.get('term', None) and_reqs, or_reqs = [], [] try: old = 'old' in request_items and int(request_items['old']) except ValueError: return HttpResponse('[]', content_type='text/plain') # manage relations types if 'relation_types' not in my_relation_types_prefix: my_relation_types_prefix['relation_types'] = '' relation_types = {} for rtype_key in my_relation_types_prefix: relation_types[my_relation_types_prefix[rtype_key]] = set() for k in request_items: if k.startswith(rtype_key): relation_types[my_relation_types_prefix[rtype_key]].add( request_items[k]) continue for k in request_keys: val = request_items.get(k) if not val: continue req_keys = request_keys[k] if type(req_keys) not in (list, tuple): dct[req_keys] = val continue # multiple choice target reqs = Q(**{req_keys[0]: val}) for req_key in req_keys[1:]: q = Q(**{req_key: val}) reqs |= q and_reqs.append(reqs) pinned_search = "" if 'submited' not in request_items and full != 'shortcut': # default search # an item is selected in the default menu if default_name in request.session and \ request.session[default_name]: value = request.session[default_name] if 'basket-' in value: try: dct = {"basket__pk": request.session[default_name].split('-')[-1]} pinned_search = unicode(FindBasket.objects.get( pk=dct["basket__pk"])) except FindBasket.DoesNotExist: pass else: try: dct = {"pk": request.session[default_name]} pinned_search = unicode(model._meta.verbose_name) \ + u" - " + unicode( model.objects.get(pk=dct["pk"])) except model.DoesNotExist: pass elif dct == (my_base_request or {}): # a parent item may be selected in the default menu for name, key in my_relative_session_names: if name in request.session and request.session[name] \ and 'basket-' not in request.session[name] \ and name in CURRENT_ITEM_KEYS_DICT: up_model = CURRENT_ITEM_KEYS_DICT[name] try: dct.update({key: request.session[name]}) pinned_search = unicode(up_model._meta.verbose_name) \ + u" - " + unicode( up_model.objects.get(pk=dct[key])) break except up_model.DoesNotExist: pass if (not dct or data_type == 'csv') \ and func_name in request.session: dct = request.session[func_name] else: request.session[func_name] = dct for k in (list(my_bool_fields) + list(my_reversed_bool_fields)): if k in dct: if dct[k] == u"1": dct.pop(k) else: dct[k] = dct[k] == u"2" and True or False if k in my_reversed_bool_fields: dct[k] = not dct[k] # check also for empty value with image field field_name = k.split('__')[0] # TODO: can be improved in later version of Django try: c_field = model._meta.get_field(field_name) if k.endswith('__isnull') and \ isinstance(c_field, ImageField): if dct[k]: or_reqs.append( (k, {k.split('__')[0] + '__exact': ''})) else: dct[k.split('__')[0] + '__regex'] = '.{1}.*' except FieldDoesNotExist: pass for k in my_dated_fields: if k in dct: if not dct[k]: dct.pop(k) try: items = dct[k].split('/') assert len(items) == 3 dct[k] = datetime.date(*map(lambda x: int(x), reversed(items))) \ .strftime('%Y-%m-%d') except AssertionError: dct.pop(k) # manage hierarchic conditions for req in dct.copy(): if req.endswith('areas__pk'): val = dct.pop(req) reqs = Q(**{req: val}) base_req = req[:-2] + '__' req = base_req[:] for idx in range(HIERARCHIC_LEVELS): req = req[:-2] + 'parent__pk' q = Q(**{req: val}) reqs |= q req = base_req[:] for idx in range(HIERARCHIC_LEVELS): req = req[:-2] + 'children__pk' q = Q(**{req: val}) reqs |= q and_reqs.append(reqs) continue if req.endswith('town__pk') or req.endswith('towns__pk'): val = dct.pop(req) reqs = Q(**{req: val}) base_req = req[:-2] + '__' req = base_req[:] for idx in range(HIERARCHIC_LEVELS): req = req[:-2] + 'parents__pk' q = Q(**{req: val}) reqs |= q req = base_req[:] for idx in range(HIERARCHIC_LEVELS): req = req[:-2] + 'children__pk' q = Q(**{req: val}) reqs |= q and_reqs.append(reqs) continue for k_hr in HIERARCHIC_FIELDS: if type(req) in (list, tuple): val = dct.pop(req) q = None for idx, r in enumerate(req): if not idx: q = Q(**{r: val}) else: q |= Q(**{r: val}) and_reqs.append(q) break elif req.endswith(k_hr + '__pk'): val = dct.pop(req) reqs = Q(**{req: val}) req = req[:-2] + '__' for idx in range(HIERARCHIC_LEVELS): req = req[:-2] + 'parent__pk' q = Q(**{req: val}) reqs |= q and_reqs.append(reqs) break dct = _search_manage_search_vector(dct) query = Q(**dct) for k, or_req in or_reqs: alt_dct = dct.copy() alt_dct.pop(k) alt_dct.update(or_req) query |= Q(**alt_dct) for rtype_prefix in relation_types: vals = list(relation_types[rtype_prefix]) if not vals: continue alt_dct = { rtype_prefix + 'right_relations__relation_type__pk__in': vals} for k in dct: val = dct[k] if rtype_prefix: # only get conditions related to the object if rtype_prefix not in k: continue # tricky: reconstruct the key to make sense - remove the # prefix from the key k = k[0:k.index(rtype_prefix)] + k[ k.index(rtype_prefix) + len(rtype_prefix):] if k.endswith('year'): k += '__exact' alt_dct[rtype_prefix + 'right_relations__right_record__' + k] = \ val if not dct: # fake condition to trick Django (1.4): without it only the # alt_dct is managed query &= Q(pk__isnull=False) query |= Q(**alt_dct) for k, or_req in or_reqs: altor_dct = alt_dct.copy() altor_dct.pop(k) for j in or_req: val = or_req[j] if j == 'year': j = 'year__exact' altor_dct[ rtype_prefix + 'right_relations__right_record__' + j] = \ val query |= Q(**altor_dct) if own: q = models.IshtarUser.objects.filter(user_ptr=request.user) if q.count(): query = query & model.get_query_owns(q.all()[0]) else: return HttpResponse(EMPTY, content_type='text/plain') for and_req in and_reqs: query = query & and_req # manage hierarchic in shortcut menu if full == 'shortcut': ASSOCIATED_ITEMS = { Operation: (File, 'associated_file__pk'), ContextRecord: (Operation, 'operation__pk'), Find: (ContextRecord, 'base_finds__context_record__pk'), } if model in ASSOCIATED_ITEMS: upper_model, upper_key = ASSOCIATED_ITEMS[model] model_name = upper_model.SLUG current = model_name in request.session \ and request.session[model_name] if current: dct = {upper_key: current} query &= Q(**dct) items = model.objects.filter(query).distinct() # print(items.query) if 'search_vector' in dct: # for serialization dct['search_vector'] = dct['search_vector'].value # table cols if own_table_cols: table_cols = own_table_cols else: if full: table_cols = [field.name for field in model._meta.fields if field.name not in PRIVATE_FIELDS] table_cols += [field.name for field in model._meta.many_to_many if field.name not in PRIVATE_FIELDS] if hasattr(model, 'EXTRA_FULL_FIELDS'): table_cols += model.EXTRA_FULL_FIELDS else: table_cols = model.TABLE_COLS query_table_cols = [] for cols in table_cols: if type(cols) not in (list, tuple): cols = [cols] for col in cols: query_table_cols += col.split('|') # contextual (full, simple, etc.) col contxt = full and 'full' or 'simple' if hasattr(model, 'CONTEXTUAL_TABLE_COLS') and \ contxt in model.CONTEXTUAL_TABLE_COLS: for idx, col in enumerate(table_cols): if col in model.CONTEXTUAL_TABLE_COLS[contxt]: query_table_cols[idx] = \ model.CONTEXTUAL_TABLE_COLS[contxt][col] if full == 'shortcut': query_table_cols = ['cached_label'] table_cols = ['cached_label'] # manage sort tables manual_sort_key = None sorts = {} for k in request_items: if not k.startswith('order['): continue num = int(k.split(']')[0][len("order["):]) if num not in sorts: sorts[num] = ['', ''] # sign, col_num if k.endswith('[dir]'): order = request_items[k] sign = order and order == u'desc' and "-" or '' sorts[num][0] = sign if k.endswith('[column]'): sorts[num][1] = request_items[k] sign = "" if not sorts and model._meta.ordering: orders = [k for k in model._meta.ordering] items = items.order_by(*orders) else: orders = [] for idx in sorted(sorts.keys()): signe, col_num = sorts[idx] k = query_table_cols[int(col_num) - 2] # remove id and link col if k in request_keys: ks = request_keys[k] if type(ks) not in (tuple, list): ks = [ks] for k in ks: if k.endswith("__pk"): k = k[:-len("__pk")] + "__label" if '__' in k: k = k.split('__')[0] orders.append(signe + k) else: # not a standard request key if idx: # not the first - we ignore this sort continue sign = signe manual_sort_key = k logger.warning( "**WARN get_item - {}**: manual sort key '{}'".format( func_name, k)) break if not manual_sort_key: items = items.order_by(*orders) # pager management start, end = 0, None page_nb = 1 if row_nb and data_type == "json": try: start = int(request_items.get('start')) page_nb = start / row_nb + 1 assert page_nb >= 1 except (TypeError, ValueError, AssertionError): start = 0 page_nb = 1 end = page_nb * row_nb if full == 'shortcut': start = 0 end = 20 items_nb = items.count() if manual_sort_key: items = items.all() else: items = items[start:end] datas = [] if old: items = [item.get_previous(old) for item in items] c_ids = [] for item in items: # manual deduplicate when distinct is not enough if not do_not_deduplicate and item.pk in c_ids: continue c_ids.append(item.pk) data = [item.pk] for keys in query_table_cols: if type(keys) not in (list, tuple): keys = [keys] my_vals = [] for k in keys: if hasattr(model, 'EXTRA_REQUEST_KEYS') \ and k in model.EXTRA_REQUEST_KEYS: k = model.EXTRA_REQUEST_KEYS[k] if type(k) in (list, tuple): k = k[0] for filtr in ('__icontains', '__contains'): if k.endswith(filtr): k = k[:len(k) - len(filtr)] vals = [item] # foreign key may be divided by "." or "__" splitted_k = [] for ky in k.split('.'): if '__' in ky: splitted_k += ky.split('__') else: splitted_k.append(ky) for ky in splitted_k: new_vals = [] for val in vals: if hasattr(val, 'all'): # manage related objects val = list(val.all()) for v in val: v = getattr(v, ky) new_vals += _get_values(request, v) elif val: try: val = getattr(val, ky) new_vals += _get_values(request, val) except (AttributeError, GEOSException): # must be a query key such as "contains" pass vals = new_vals # manage last related objects if vals and hasattr(vals[0], 'all'): new_vals = [] for val in vals: new_vals += list(val.all()) vals = new_vals if not my_vals: my_vals = [_format_val(va) for va in vals] else: new_vals = [] if not vals: for idx, my_v in enumerate(my_vals): new_vals.append(u"{}{}{}".format( my_v, u' - ', '')) else: for idx, v in enumerate(vals): new_vals.append(u"{}{}{}".format( vals[idx], u' - ', _format_val(v))) my_vals = new_vals[:] data.append(u" & ".join(my_vals) or u"") datas.append(data) if manual_sort_key: # +1 because the id is added as a first col idx_col = None if manual_sort_key in query_table_cols: idx_col = query_table_cols.index(manual_sort_key) + 1 else: for idx, col in enumerate(query_table_cols): if type(col) in (list, tuple) and \ manual_sort_key in col: idx_col = idx + 1 if idx_col is not None: datas = sorted(datas, key=lambda x: x[idx_col]) if sign == '-': datas = reversed(datas) datas = list(datas)[start:end] link_template = "" \ "" link_ext_template = '{}' if data_type == "json": rows = [] for data in datas: try: lnk = link_template % reverse('show-' + default_name, args=[data[0], '']) except NoReverseMatch: logger.warning( '**WARN "show-' + default_name + '" args (' + unicode(data[0]) + ") url not available") lnk = '' res = {'id': data[0], 'link': lnk} for idx, value in enumerate(data[1:]): if value: table_col = table_cols[idx] if type(table_col) not in (list, tuple): table_col = [table_col] tab_cols = [] # foreign key may be divided by "." or "__" for tc in table_col: if '.' in tc: tab_cols += tc.split('.') elif '__' in tc: tab_cols += tc.split('__') else: tab_cols.append(tc) k = "__".join(tab_cols) if hasattr(model, 'COL_LINK') and k in model.COL_LINK: value = link_ext_template.format(value, value) res[k] = value if full == 'shortcut' and 'cached_label' in res: res['value'] = res.pop('cached_label') rows.append(res) if full == 'shortcut': data = json.dumps(rows) else: data = json.dumps({ "recordsTotal": items_nb, "recordsFiltered": items_nb, "rows": rows, "pinned-search": pinned_search, "page": page_nb, "total": (items_nb / row_nb + 1) if row_nb else items_nb, }) return HttpResponse(data, content_type='text/plain') elif data_type == "csv": response = HttpResponse(content_type='text/csv') n = datetime.datetime.now() filename = u'%s_%s.csv' % (default_name, n.strftime('%Y%m%d-%H%M%S')) response['Content-Disposition'] = 'attachment; filename=%s' \ % filename writer = csv.writer(response, **CSV_OPTIONS) if col_names: col_names = [name.encode(ENCODING, errors='replace') for name in col_names] else: col_names = [] for field_name in table_cols: if type(field_name) in (list, tuple): field_name = u" & ".join(field_name) if hasattr(model, 'COL_LABELS') and \ field_name in model.COL_LABELS: field = model.COL_LABELS[field_name] col_names.append(unicode(field).encode(ENCODING)) continue else: try: field = model._meta.get_field(field_name) except: col_names.append(u"".encode(ENCODING)) logger.warning( "**WARN get_item - csv export**: no col name " "for {}\nadd explicit label to " "COL_LABELS attribute of " "{}".format(field_name, model)) continue col_names.append( unicode(field.verbose_name).encode(ENCODING)) writer.writerow(col_names) for data in datas: row, delta = [], 0 # regroup cols with join "|" for idx, col_name in enumerate(table_cols): if len(data[1:]) <= idx + delta: break val = data[1:][idx + delta].encode( ENCODING, errors='replace') if col_name and "|" in col_name[0]: for delta_idx in range( len(col_name[0].split('|')) - 1): delta += 1 val += data[1:][idx + delta].encode( ENCODING, errors='replace') row.append(val) writer.writerow(row) return response return HttpResponse('{}', content_type='text/plain') return func