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################################################################# |
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# MET v2 Metadate Explorer Tool |
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# |
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# This Software is Open Source. See License: https://github.com/TERENA/met/blob/master/LICENSE.md |
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# Copyright (c) 2012, TERENA All rights reserved. |
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# |
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# This Software is based on MET v1 developed for TERENA by Yaco Sistemas, http://www.yaco.es/ |
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# MET v2 was developed for TERENA by Tamim Ziai, DAASI International GmbH, http://www.daasi.de |
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# Current version of MET has been revised for performance improvements by Andrea Biancini, |
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# Consortium GARR, http://www.garr.it |
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######################################################################################### |
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import csv |
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from xml.dom.minidom import Document |
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import hashlib |
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from django.http import HttpResponse, HttpResponseBadRequest |
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from django.template.defaultfilters import slugify |
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import simplejson as json |
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## Taken from http://djangosnippets.org/snippets/790/ |
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def export_csv(model, filename, fields): |
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response = HttpResponse(content_type='text/csv') |
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response['Content-Disposition'] = ('attachment; filename=%s.csv' |
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% slugify(filename)) |
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writer = csv.writer(response) |
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# Write headers to CSV file |
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writer.writerow(fields) |
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# Write data to CSV file |
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for obj in model: |
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row = [] |
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for field in fields: |
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row.append("%s" % obj[field]) |
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writer.writerow(row) |
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# Return CSV file to browser as download |
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return response |
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def export_json(model, filename, fields): |
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objs = [] |
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for obj in model: |
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item = {} |
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for field in fields: |
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if type(obj[field]) == set: |
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item[field] = list(obj[field]) |
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else: |
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item[field] = obj[field] |
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objs.append(item) |
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# Return JS file to browser as download |
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serialized = json.dumps(objs) |
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response = HttpResponse(serialized, content_type='application/json') |
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response['Content-Disposition'] = ('attachment; filename=%s.json' |
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% slugify(filename)) |
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return response |
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def _parse_xml_element(xml, father, structure): |
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if type(structure) == dict: |
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for k in structure: |
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tag = xml.createElement(k) |
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father.appendChild(tag) |
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_parse_xml_element(xml, tag, structure[k]) |
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elif type(structure) == tuple: |
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tag_name = father.tagName |
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for l in list(structure): |
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tag = xml.createElement(tag_name) |
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_parse_xml_element(xml, tag, l) |
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father.appendChild(tag) |
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elif type(structure) == list: |
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tag_name = father.tagName |
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for l in structure: |
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tag = xml.createElement(tag_name) |
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_parse_xml_element(xml, tag, l) |
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father.appendChild(tag) |
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View Code Duplication |
elif type(structure) == set: |
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tag_name = father.tagName |
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for l in list(structure): |
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tag = xml.createElement(tag_name) |
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_parse_xml_element(xml, tag, l) |
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father.appendChild(tag) |
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else: |
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if type(structure) == unicode: |
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data = structure.encode("ascii", errors="xmlcharrefreplace") |
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else: |
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data = str(structure) |
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tag = xml.createTextNode(data) |
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father.appendChild(tag) |
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def export_xml(model, filename, fields): |
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xml = Document() |
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root = xml.createElement(filename) |
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xml.appendChild(root) |
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for obj in model: |
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_parse_xml_element(xml, root, obj) |
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# Return xml file to browser as download |
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response = HttpResponse(xml.toxml(), content_type='application/xml') |
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response['Content-Disposition'] = ('attachment; filename=%s.xml' |
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% slugify(filename)) |
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return response |
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export_modes = { |
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'csv': export_csv, |
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'json': export_json, |
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'xml': export_xml, |
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} |
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def export_query_set(mode, qs, filename, fields=None): |
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if mode in export_modes: |
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return export_modes[mode](qs, filename, fields) |
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else: |
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content = "Error 400, Format %s is not supported" % mode |
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return HttpResponseBadRequest(content) |
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GEANT /
met
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