add content for measurable and change the many to many foreign key

jci/admin.py

@@ -1,6 +1,6 @@
 from django.contrib import admin
 
-from .models import Chapter, Section, Standard
+from .models import Chapter, Section, Standard, Measurable
 
 
 class InlineStandard(admin.StackedInline):
@@ -21,3 +21,4 @@ class StandardAdmin(admin.ModelAdmin):
 admin.site.register(Chapter, ChapterAdmin)
 admin.site.register(Standard, StandardAdmin)
 admin.site.register(Section)
+admin.site.register(Measurable)

jci/migrations/0019_measurable_content.py

@@ -0,0 +1,21 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.11.5 on 2017-10-19 15:14
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('jci', '0018_auto_20171019_1354'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='measurable',
+            name='content',
+            field=models.CharField(default='', max_length=255),
+            preserve_default=False,
+        ),
+    ]

jci/models.py

@@ -52,8 +52,9 @@ class Standard(models.Model):
 
 class Measurable(models.Model):
     standard = models.ForeignKey(Standard, related_name='measurables')
-    linked_standards = models.ManyToManyField(Standard, related_name='linked_measurables')
+    see_also = models.ManyToManyField('self')
     order = models.IntegerField()
+    content = models.CharField(max_length=255)
 
     class Meta:
         unique_together = ('standard', 'order')