小编Dan*_*kin的帖子

我正在尝试使用输入值的最后一部分调用我的远程URL.我想做这样的事情:

    $('#typeahead').typeahead({
    remote: {
        url: '/ajax/tags/get/?name=%QUERY',
        replace: function (url, query) {
            var last = query.split(',');
            last = $.trim(last[last.length-1]);
            return url.replace('%QUERY', last);
        }
    },
    limit : 10
});

当选择下拉项时,

将新值添加到行尾

知道如何做到这一点吗？

使用pdfminer(pdf2txt.py)处理PDF 文件(2.pdf)时收到以下错误:

pdf2txt.py 2.pdf 

Traceback (most recent call last):
  File "/usr/local/bin/pdf2txt.py", line 115, in <module>
    if __name__ == '__main__': sys.exit(main(sys.argv))
  File "/usr/local/bin/pdf2txt.py", line 109, in main
    interpreter.process_page(page)
  File "/usr/local/lib/python2.7/dist-packages/pdfminer/pdfinterp.py", line 832, in process_page
    self.render_contents(page.resources, page.contents, ctm=ctm)
  File "/usr/local/lib/python2.7/dist-packages/pdfminer/pdfinterp.py", line 843, in render_contents
    self.init_resources(resources)
  File "/usr/local/lib/python2.7/dist-packages/pdfminer/pdfinterp.py", line 347, in init_resources
    self.fontmap[fontid] = self.rsrcmgr.get_font(objid, spec)
  File "/usr/local/lib/python2.7/dist-packages/pdfminer/pdfinterp.py", line 195, in get_font
    font = self.get_font(None, subspec)
  File "/usr/local/lib/python2.7/dist-packages/pdfminer/pdfinterp.py", line 186, in get_font
    font = PDFCIDFont(self, spec)
  File "/usr/local/lib/python2.7/dist-packages/pdfminer/pdffont.py", line 654, in __init__ …

使用pdfminer(pdf2txt.py)处理文件时,我收到空输出:

dan@work:~/project$ pdf2txt.py  docs/homericaeast.pdf 

dan@work:~/project$ 

任何人都可以说这个文件有什么问题,我可以做些什么来从中获取数据？

这是dumppdf.py docs/homericaeast.pdf输出:

<trailer>
<dict size="4">
<key>Info</key>
<value><ref id="2" /></value>
<key>Root</key>
<value><ref id="1" /></value>
<key>ID</key>
<value><list size="2">
<string size="16">on&#10;&#164;&#181;F&#164;5&#193;&#62;&#243;_&#253;v&#172;`</string>
<string size="16">on&#10;&#164;&#181;F&#164;5&#193;&#62;&#243;_&#253;v&#172;`</string>
</list></value>
<key>Size</key>
<value><number>27</number></value>
</dict>
</trailer>

<trailer>
<dict size="4">
<key>Info</key>
<value><ref id="2" /></value>
<key>Root</key>
<value><ref id="1" /></value>
<key>ID</key>
<value><list size="2">
<string size="16">on&#10;&#164;&#181;F&#164;5&#193;&#62;&#243;_&#253;v&#172;`</string>
<string size="16">on&#10;&#164;&#181;F&#164;5&#193;&#62;&#243;_&#253;v&#172;`</string>
</list></value>
<key>Size</key>
<value><number>27</number></value>
</dict>
</trailer>

我试图按照此添加新的迁移教程 我增加了新的权限内Meta到permissions现场。然后，我创建了迁移，并尝试修改此迁移以适当地更新组权限。但得到DoesNotExist的RunPython操作。

from django.db import migrations


def assign_new_permission(apps, *args):
    Permission = apps.get_model('auth.Permission')
    Group = apps.get_model('auth.Group')
    # __fake__.DoesNotExist: Permission matching query does not exist.
    new_permission = Permission.objects.get(
        codename='my_new_permissoin_code')

    admins = Group.objects.get(name='Group name')
    admins.permissions.add(new_permission)


class Migration(migrations.Migration):
    dependencies = [
        ('my_app', '0066_some_migratoin'),
    ]

    operations = [
        migrations.AlterModelOptions(
            name='my_model',
            options={'permissions': (('my_new_permissoin_code',
                                      'Permission name'),)},
        ),
        migrations.RunPython(assign_new_permission)
    ]