Accessing a field's verbose_name

Hello

I have created models in a django application.

class FicheService(models.Model):

    id = models.AutoField(primary_key=True)
    name = models.CharField(max_length=64, verbose_name="Nom", blank=False)
    phone = models.CharField(max_length=16, validators=[phone_verif], blank=True, null=True, verbose_name="N° de téléphone",
           
 help_text="Le numéro de téléphone doit être entré dans le format:
'+999999999', jusqu'à 15 chiffres autorisés.") # validators should be a
list

    site_web = models.CharField(max_length=256, blank=True, null=True, verbose_name="Site web du service")
   
 commentaire = models.CharField(max_length=128,
verbose_name="Informations complémentaires", help_text="Facultatif",
blank=True, null=True)

    def __unicode__(self):
        return self.name

    def get_descr(self):
        [...]

class Geomap(Page):

    services = models.ManyToManyField(FicheService)


In the get_descr method, I would like to access the phone value (ex: +331234567), and the phone verbose_name ("N° de téléphone")...
The goal is to create a string to insert the description.

I have seen in multiple forums (including this google group : https://groups.google.com/forum/#!topic/django-users/ojaJMZ1YN-o) one answer which apparently worked for the people that asked the question, but it doesn't seem to work for me...

Here is the code I currently have for get_descr :

    def descr(self):
        my_string = (
                "<div class=\"info-title\">"
                + self.name
                + "</div>\n<div class=\"info-descr\">\n"
                )
        for curr_field in ("phone", "site_web", "commentaire"):
            curr_field_value = getattr(self, curr_field) ;
            curr_field_name = self._meta.get_field(curr_field).verbose_name ;
            my_string = (
                    my_string
                    + "\n<br>\n"
                    + curr_field_name
                    + " : "
                    + curr_field_value
                    )

        my_string = my_string + "\n</div>"
        return my_string


It doesn't display anything.
I have tested with the exact same code, whitout the line " + curr_field_name" and it displays the description how it should.

I also have tested to see what

self._meta.get_field("phone").verbose_name

returned, and it returns :
myapp.FicheService.phone


Does anyone have any idea about why it doesn't work for me ?

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