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citation_grapher.py
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Fri, Nov 15, 06:44

citation_grapher.py
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# -*- coding: utf-8 -*-
##
## This file is part of Invenio.
## Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011 CERN.
##
## Invenio is free software; you can redistribute it and/or
## modify it under the terms of the GNU General Public License as
## published by the Free Software Foundation; either version 2 of the
## License, or (at your option) any later version.
##
## Invenio is distributed in the hope that it will be useful, but
## WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
## General Public License for more details.
##
## You should have received a copy of the GNU General Public License
## along with Invenio; if not, write to the Free Software Foundation, Inc.,
## 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
__revision__ = "$Id$"
import os
import time
from invenio.config import CFG_SITE_URL, CFG_SITE_LANG, CFG_WEBDIR, CFG_BIBRANK_SHOW_CITATION_GRAPHS
from invenio.legacy.dbquery import run_sql
from invenio.base.i18n import gettext_set_language
from invenio.legacy.bibrank.grapher import create_temporary_image, write_coordinates_in_tmp_file, remove_old_img
from invenio.legacy.bibrank.citation_searcher import calculate_cited_by_list
cfg_bibrank_print_citation_history = 1
color_line_list = ['9', '19', '10', '15', '21', '18']
cfg_bibrank_citation_history_min_x_points = 3 # do not generate graphs that have less than three points
def get_field_values(recID, tag):
"""Return list of field values for field tag inside record RECID."""
out = []
if tag == "001___":
out.append(str(recID))
else:
digit = tag[0:2]
bx = "bib%sx" % digit
bibx = "bibrec_bib%sx" % digit
query = "SELECT bx.value FROM %s AS bx, %s AS bibx WHERE bibx.id_bibrec='%s' AND bx.id=bibx.id_bibxxx AND bx.tag LIKE '%s'" "ORDER BY bibx.field_number, bx.tag ASC" % (bx, bibx, recID, tag)
res = run_sql(query)
for row in res:
out.append(row[0])
return out
def calculate_citation_history_coordinates(recid):
"""Return a list of citation graph coordinates for RECID, sorted by year."""
result = []
dbg = ""
initial_result= get_initial_result(calculate_citation_graphe_x_coordinates(recid))
citlist = calculate_cited_by_list(recid)
for rec_id, cit_weight in citlist:
cit_year = get_field_values(rec_id,'773__y')
if not cit_year:
cit_year = get_field_values(rec_id, '260__c')
if not cit_year:
cit_year = get_field_values(rec_id, '269__c')
#some records simlpy do not have these fields
if cit_year:
#maybe cit_year[0][0:4] has a typo and cannot
#be converted to an int
numeric=1
try:
tmpval = int(cit_year[0][0:4])
except ValueError:
numeric=0
if numeric and initial_result.has_key(int(cit_year[0][0:4])):
initial_result[int(cit_year[0][0:4])] += 1
for key, value in initial_result.items():
result.append((key, value))
result.sort()
if len(result) < cfg_bibrank_citation_history_min_x_points:
# do not generate graphs that have less than X points
return []
return result
def calculate_citation_graphe_x_coordinates(recid):
"""Return a range of year from the publication year of record RECID
until the current year."""
rec_years = []
recordyear = get_field_values(recid, '773__y')
if not recordyear:
recordyear = get_field_values(recid, '260__c')
if not recordyear:
recordyear = get_field_values(recid, '269__c')
currentyear = time.localtime()[0]
if recordyear == []:
recordyear = currentyear
else:
recordyear = find_year(recordyear[0])
interval = range(int(recordyear), currentyear+1)
return interval
def find_year(recordyear):
"""find the year in the string as a suite of 4 int"""
s = ""
for i in range(len(recordyear)-3):
s = recordyear[i:i+4]
if s.isalnum():
break
return s
def get_initial_result(rec_years):
"""return an initial dictionary with year of record publication as key
and zero as value
"""
result = {}
for year in rec_years :
result[year] = 0
return result
def html_command(file):
t = ''
if CFG_BIBRANK_SHOW_CITATION_GRAPHS == 1:
t = """<img src='%s/img/%s' align="center" alt="">""" % (CFG_SITE_URL, file)
elif CFG_BIBRANK_SHOW_CITATION_GRAPHS == 2:
t = open(CFG_WEBDIR + "/img/" + file).read()
#t += "</table></td></tr></table>"
return t
def create_citation_history_graph_and_box(recid, ln=CFG_SITE_LANG):
"""Create graph with citation history for record RECID (into a
temporary file) and return HTML box refering to that image.
Called by Detailed record pages.
"""
_ = gettext_set_language(ln)
html_result = ""
if cfg_bibrank_print_citation_history:
coordinates = calculate_citation_history_coordinates(recid)
if coordinates:
html_head = """<br /><table><tr><td class="blocknote">%s</td></tr></table>"""% _("Citation history:")
graphe_file_name = 'citation_%s_stats.png' % str(recid)
remove_old_img(graphe_file_name)
years = calculate_citation_graphe_x_coordinates(recid)
years.sort()
datas_info = write_coordinates_in_tmp_file([coordinates])
graphe = create_temporary_image(recid, 'citation', datas_info[0], 'Year', 'Times cited', [0,0], datas_info[1], [], ' ', years)
graphe_image = graphe[0]
graphe_source_file = graphe[1]
if graphe_image and graphe_source_file:
if os.path.exists(graphe_source_file):
os.unlink(datas_info[0])
html_graphe_code = """<p>%s"""% html_command(graphe_image)
html_result = html_head + html_graphe_code
return html_result

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