* treat 'apps/utils' as regular django app; which used to store

  general tools for used in other apps
* moved 'templatetags' from 'apps/indicator' to 'apps/utils'
* '.gitignore' to ignore 'fixtures_bak'
* moved js plugins from 'apps/indicator/static/plugins' to
  'staticfiles/plugins'

apps/recommend:
* updated 'recommend.models';
    o commented 'recommend.models.ResearchCombination' (not used)
* implemented views 'add_edit_blog_info' and 'ajax_add_edit_configs';
* added pages 'templates/recommend/add_edit_blog_info.html',
    'add_edit_blog_info_error.html';
    o related css and javascripts files
* added 'tools.py';

* added 'utils/tools.py' for placing generic functions;
* deleted 'initial_data.json' (mv 'fixtures' to 'fixtures_bak');
* small fixes to 'indicator.models', 'sciblog.models' and
  'sfaccount.views'

* fixed automatically show 'proper_nouns' annotation in blog:
  recovered the line 'import signals' in 'sciblog.models'
* added 'is_ok()' method for 'recommend.models.ResearchConfig';

4 files changed, 74 insertions, 0 deletions

diff --git a/97suifangqa/apps/utils/templatetags/__init__.py b/97suifangqa/apps/utils/templatetags/__init__.py
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/97suifangqa/apps/utils/templatetags/__init__.py
diff --git a/97suifangqa/apps/utils/templatetags/dict_get.py b/97suifangqa/apps/utils/templatetags/dict_get.py
new file mode 100644
index 0000000..49de3cd
--- /dev/null
+++ b/97suifangqa/apps/utils/templatetags/dict_get.py
@@ -0,0 +1,14 @@
+# -*- coding: utf-8 -*-
+
+from django import template
+
+register = template.Library()
+
+@register.filter
+def dict_get(dict, key):
+    """
+    filter to get the value of key in the dict:
+    return dict[key]
+    """
+    return dict.get(key)
+
diff --git a/97suifangqa/apps/utils/templatetags/divisible_by.py b/97suifangqa/apps/utils/templatetags/divisible_by.py
new file mode 100644
index 0000000..96638e7
--- /dev/null
+++ b/97suifangqa/apps/utils/templatetags/divisible_by.py
@@ -0,0 +1,30 @@
+# -*- coding: utf-8 -*-
+
+from django import template
+
+register = template.Library()
+
+@register.filter
+def divisible_by(dividend, divisor):
+    """
+    if 'dividend' can be *exactly* divided by 'divisor',
+    return True;
+    else, return False.
+
+    input parameters:
+    dividend: <type 'int'>
+    divisor: <class 'django.utils.safestring.SafeUnicode'>
+    """
+    if not isinstance(dividend, int):
+        raise ValueError(u'Error: dividend="%s" not int type' % dividend)
+    try:
+        divisor = int(divisor)
+    except ValueError, TypeError:
+        raise ValueError(u'Error: divisor="%s" cannot convert to int'
+                % divisor)
+    #
+    if dividend % divisor == 0:
+        return True
+    else:
+        return False
+
diff --git a/97suifangqa/apps/utils/tools.py b/97suifangqa/apps/utils/tools.py
new file mode 100644
index 0000000..33cf012
--- /dev/null
+++ b/97suifangqa/apps/utils/tools.py
@@ -0,0 +1,30 @@
+# -*- coding: utf-8 -*-
+#
+# generic tools for apps
+#
+
+
+def format_float(number):                                       # {{{
+    """
+    format the display style of a float number
+    """
+    threshold_min = 0.001
+    threshold_max = 9999.9
+    fix_fmt = '{:,.1f}'    # comma as a thousands separator
+    exp_fmt = '{:.1e}'
+    #
+    if isinstance(number, int) or isinstance(number, float):
+        #return type(number)
+        pass
+    else:
+        return False
+    #
+    if (number > threshold_max) or (number < threshold_min):
+        str = exp_fmt.format(number)
+    else:
+        str = fix_fmt.format(number)
+    #
+    return str
+# }}}
+
+