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bibrank_publication_grapher.py
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Thu, Nov 7, 13:24

bibrank_publication_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.
import os
from invenio.config import CFG_SITE_URL, CFG_WEBDIR
from invenio.bibrank_grapher import create_temporary_image, write_coordinates_in_tmp_file
def html_image(filename, width, height):
"""
Returns html code for showing publication graph image (with lightbox js effect)
@param filename: str (graph image name)
@param width: int (image width)
@param height: int (image height)
@return: str (html code)
"""
html = """<a href='%s/img/%s' rel="lightbox"> <img src='%s/img/%s' width="%s" height="%s"
alt=""> </a>""" % (CFG_SITE_URL, filename, CFG_SITE_URL, filename, str(width), str(height))
return html
def create_graph_image(graph_file_name, graph_data):
"""
Creates a new graph image with the given data.
@param graph_file_name: str (graph image name)
@param graph_data: list (data for the graph plot)
@return: str (full name of the graph image)
"""
res = ''
if not os.path.exists("%s/img/tmp" % (CFG_WEBDIR)):
os.mkdir("%s/img/tmp" % (CFG_WEBDIR))
if not os.path.exists("%s/img/tmp/%s" % (CFG_WEBDIR, graph_file_name[0])):
os.mkdir("%s/img/tmp/%s" % (CFG_WEBDIR, graph_file_name[0]))
datas_info = write_coordinates_in_tmp_file([graph_data])
years = [tup[0] for tup in graph_data]
graph = create_temporary_image(graph_file_name, 'pubs_per_year', datas_info[0], 'Year',
'Times published', [0, 0], datas_info[1], [], ' ', years)
graph_image = graph[0]
graph_source_file = graph[1]
if graph_image and graph_source_file and os.path.exists(graph_source_file):
os.unlink(datas_info[0])
res = graph_image
return res
def get_graph_code(graph_file_name, graph_data):
"""
Creates HTML code refering to the 'publications per year' graph image.
If the graph image does not exist in the filesystem, it creates a new one.
@param graph_file_name: str (graph image name)
@param graph_data: list (data for the graph plot)
@return: str (html code)
"""
html_graph_code = ''
if os.path.exists('%s/img/tmp/%s/%s.png' % (CFG_WEBDIR, graph_file_name[0], graph_file_name)):
graph_image = 'tmp/%s/%s.png' % (graph_file_name[0], graph_file_name)
html_graph_code = """<p>%s""" % html_image(graph_image, 350, 200)
else:
graph_image = create_graph_image(graph_file_name, graph_data)
html_graph_code = """<p>%s""" % html_image(graph_image, 350, 200)
return html_graph_code

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