小编Ama*_*shy的帖子

我决定将自己需要的东西放在一起 - 这意味着我要以Django形式实现一些javascript.

我目前的表格如下:

class SoundTestPairForm(forms.Form):
    LANGUAGE_CHOICES = [[d['language'], d['language']] for d in Sound.objects.order_by('language').values('language').distinct()]
    lesson_name = forms.CharField(widget=forms.HiddenInput())
    sound_pk = forms.CharField(widget=forms.HiddenInput())
    master_phrase1 = forms.CharField(widget=forms.HiddenInput())
    master_phrase2 = forms.CharField(widget=forms.HiddenInput())

    sex = forms.MultipleChoiceField(
            choices=Sound.SEX_CHOICES
    )

    starts_with = forms.MultipleChoiceField(
            choices=Sound.POS_CHOICES
    )

    language = forms.MultipleChoiceField(
            choices=LANGUAGE_CHOICES
    )

    user_sound = forms.ModelMultipleChoiceField(
            queryset=Sound.objects.all(),
    )

    class Media:
        js = ('filter_queryset.js')

但是当我form_instance = SoundTestPairForm()打电话时form_instance.media.render,我得到:

[u'<script type="text/javascript" src="/static/f"></script>', u'<script type="text/javascript" src="/static/i"></script>', u'<script type="text/javascript" src="/static/l"></script>', u'<script type="text/javascript" src="/static/t"></script>', u'<script type="text/javascript" src="/static/e"></script>', u'<script type="text/javascript" src="/static/r"></script>', u'<script type="text/javascript" src="/static/_"></script>', u'<script …

我已经使用了R一段时间了,但在使用时我仍然不知道我在做什么facet_wrap().考虑一下,为了exacmle:

ggplot(df, aes(x, y)) + 
    geom_bar(stat = "identity") + 
    facet_wrap(~ z)

它可以工作,但每当我使用时,facet_wrap()我最终只是尝试不同的排列,如何对其参数进行格式化.这是因为我不知道这些论点中的含义~或.含义.

有没有人对这些东西有什么简洁的描述？

这应该是一个非常简单的事情,但它不能正常工作.

模型

class Lesson(models.Model):
    lesson_name = models.CharField(max_length=150, primary_key=True)
    json_name = models.CharField(max_length=150, default="", null=True)
    activity_type = models.CharField(max_length=20)
    learning_language = models.CharField(max_length=50)
    known_language = models.CharField(max_length=50)

管理

from .models import Lesson

class LessonAdmin(admin.ModelAdmin):
    fields = ['lesson_name']
    readonly_fields = ['json_name', 'activity_type', 'learning_language', 'known_language']

admin.site.register(Lesson, LessonAdmin) 

但是,当我登录管理站点时,指定的字段readonly_fields根本不显示.我也尝试将字段名称包含在元组而不是列表中(如文档所指定),但这甚至给我一个错误.

有很多关于Cannot find implementation or library stub for module named...错误的线程，但没有关联的错误代码。我想完全禁用此功能。我该怎么做呢？

**小心**,这个程序不仅会挂起,而且显然会永远占用你的所有记忆,让你的计算机变得缓慢而糟糕.很长一段时间以来,我一直在努力解决这个问题,并且想出了很多东西 - 除了为什么它真的挂了.很抱歉,有太多代码,但我删除了所有不相关的内容,这就是剩下的内容.

链表

//=====================
// Linked List

#include <stdexcept>

template<class T> struct LinkedList {
    public:
        LinkedList();
        LinkedList(const LinkedList& srcList);
        ~LinkedList();

        void addObject (T& addedObject);

        class ListIterator {
            public:
                ListIterator();
                explicit ListIterator(LinkedList<T>& parentList);

                // Operators
                ListIterator& operator++();
                T& operator*() const;
                bool operator!=(const ListIterator& otherIter);

            private:
                typename LinkedList::Node* current_;
        };

        ListIterator begin();
        ListIterator end();
        std::size_t size_;

    private:
        struct Node {
            Node();
            Node(T& object);
            Node(const Node&) = delete;
            T* const object_;
            Node* next_;
            Node* prev_;
        };

        Node head_;
        Node …

我不知道这里会发生什么：

模型.py

class Sound(models.Model):
    SEX_CHOICES = (
            ('M', 'Male'),
            ('F', 'Female')
    )
    phrase1 = models.CharField(max_length=300)
    phrase2 = models.CharField(max_length=300)
    language = models.CharField(max_length=50)
    num_words = models.PositiveSmallIntegerField(verbose_name="number of words")
    num_syllables = models.PositiveSmallIntegerField(verbose_name="number of syllables")
    sex = models.CharField(max_length=1, choices=SEX_CHOICES)
    voice = models.BooleanField(verbose_name="synthetic voice")
    speaker_name = models.CharField(max_length=50)
    sound_hash = models.CharField(max_length=40, primary_key=True, editable=False)
    key = models.CharField(max_length=200, editable=False, default="", null=True, help_text="Amazon S3 key")

表格.py

from django import forms
class LessonSoundForm(forms.ModelForm):
    class Meta:
        model = Sound
        fields = ["phrase1", "phrase2", "num_words", "num_syllables"]

测试.py

from django.test import …