用变量替换文本 [英] Replacing text with variables

问题描述

我必须向某些客户发送信件，并且我有一个我需要使用的标准信件。我想使用变量替换消息正文内的一些文本。

这是我的maturity_letter models.py

$ $ $ $ $ $ $ $ $ $ $ $ $ $
default = models.BooleanField（default = False，blank = True）
body = models.TextField（blank = true）
footer = models.TextField（blank = True）

一个值：

尊敬的[primary-firstname]，

重要提示...

您有[金融机构] [[maturity_date]）已经成熟的[产品]。

etc

现在我想替换括号中的所有模板变量。

这是迄今为止在我的views.py中有的：

  context = {} 
如果request.POST：
 start_form = MaturityLetterSetupForm（request.POST）
如果start_form.is_valid（）：
 agent = request.session ['agent'] 
 start_date = start_form.cleaned_data ['start_date'] 
 end_date = start_form.cleaned_data ['end_date'] 
 invest = Investment.objects.all（ ）.filter（maturity_date__range =（start_date，end_date），plan__profile__agent = agent）.order_by（'maturity_date'）
 inv_form = MaturityLetterInvestments（investment，request.POST）
如果inv_form.is_valid（）：
 sel_inv = inv_form.cleaned_data ['invest'] 
上下文['sel_inv'] = sel_inv 
 maturity_letter = MaturityLetter.objects.get（id = 1）
 
上下文[ 'mat_letter'] = maturity_letter 
上下文['inv_form'] = inv_form 
上下文['agent'] =代理
上下文['show_report'] = True 
  

现在，如果我循环访问 sel_inv ，我可以访问 sel_inv.maturity_date 等等，但我迷失在如何复制

在我的模板上，我到目前为止都是：

  {％if show_letter％} 
 {{mat_letter.body}}< br /> 
 {{mat_letter.footer}} 
 {％endif％} 
  

赞赏。

解决方案

我认为这是最好的方法。首先，你有一个包含你的模板的文件，例如：

 尊敬的{{primary-firstname}}，
重要提示... 
 {{financial {} {} {} {} {{{ 
 etc ... 
  

所以，你的观点会像：

  from django.template.loader import render_to_string 
 
＃previous code ... 
 template_file ='where /is/my/template.txt'
 context_data = {'primary-firstname'：'先生约翰逊，
'产品'：'香蕉'，
'maturity_date'：'11 -17-2011'，
'金融机构'：'别的'} 
 message = render_to_string（template_file，context_data）
＃这里你发送消息给用户... 
  

所以如果你打印消息，你会得到：

 亲爱的约翰逊先生，
一个重要提示... 
你有一个香蕉正在成熟11-17-2011与别的东西。 
等... 
  

I have to send out letters to certain clients and I have a standard letter that I need to use. I want to replace some of the text inside the body of the message with variables.

Here is my maturity_letter models.py

class MaturityLetter(models.Model):
default = models.BooleanField(default=False, blank=True)
body = models.TextField(blank=True)
footer = models.TextField(blank=True)

Now the body has a value of this:

Dear [primary-firstname],

AN IMPORTANT REMINDER…

You have a [product] that is maturing on [maturity_date] with [financial institution].

etc

Now I would like to replace everything in brackets with my template variables.

This is what I have in my views.py so far:

context = {}
if request.POST:
    start_form = MaturityLetterSetupForm(request.POST)
    if start_form.is_valid():
        agent = request.session['agent']
        start_date = start_form.cleaned_data['start_date']
        end_date = start_form.cleaned_data['end_date']
        investments = Investment.objects.all().filter(maturity_date__range=(start_date, end_date), plan__profile__agent=agent).order_by('maturity_date')
        inv_form = MaturityLetterInvestments(investments, request.POST)
        if inv_form.is_valid():
            sel_inv = inv_form.cleaned_data['investments']
            context['sel_inv'] = sel_inv
        maturity_letter = MaturityLetter.objects.get(id=1)

        context['mat_letter'] = maturity_letter
        context['inv_form'] = inv_form
        context['agent'] = agent
        context['show_report'] = True

Now if I loop through the sel_inv I get access to sel_inv.maturity_date, etc but I am lost in how to replace the text.

On my template, all I have so far is:

{% if show_letter %}
{{ mat_letter.body }} <br/>
{{ mat_letter.footer }}
{% endif %}

Much appreciated.

解决方案

I think this is the best way to do it. First, you have a file with your template, something like:

Dear {{primary-firstname}},
AN IMPORTANT REMINDER…
You have a {{product}} that is maturing on {{maturity_date}} with {{financial institution}}.
etc ...

So, your view will go something like:

from django.template.loader import render_to_string

# previous code ...
template_file = 'where/is/my/template.txt'
context_data = {'primary-firstname': 'Mr. Johnson',
                'product': 'banana',
                'maturity_date': '11-17-2011',
                'financial institution': 'something else'}
message = render_to_string(template_file, context_data)
# here you send the message to the user ...

So if you print message you'll get:

Dear Mr. Johnson,
AN IMPORTANT REMINDER…
You have a banana that is maturing on 11-17-2011 with something else.
etc ...

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