Prevent numbers from being formatted in scientific notation in forms

opentreemap/treemap/audit.py

@@ -30,7 +30,7 @@
                           to_object_name, safe_get_model_class,
                           get_pk_from_collection_audit_name,
                           get_name_from_canonical_name,
-                          make_udf_name_from_key)
+                          make_udf_name_from_key, num_format)
 from treemap.decorators import classproperty
 
 from treemap.lib.object_caches import (field_permissions,
@@ -1480,6 +1480,8 @@ def _unit_format(self, value):
                 units = get_unit_name(get_units(self.instance,
                                                 model_name, self.field))
                 value += (' %s' % units)
+        elif isinstance(value, float):
+            return num_format(value)
 
         return value
 

opentreemap/treemap/templates/treemap/field/attrs.html

@@ -1,7 +1,12 @@
 {% load l10n %}
+{% load util %}
 data-field="{{ field.identifier }}"
 data-class="{{ class }}"
+{% if field.data_type == 'float' %}
+data-value="{{ field.value|num_format|default_if_none:""|unlocalize|force_escape }}"
+{% else %}
 data-value="{{ field.value|default_if_none:""|unlocalize|force_escape }}"
+{% endif %}
 data-type="{{ field.data_type }}"
 data-units="{{ field.units }}"
 data-digits="{{ field.digits }}"

opentreemap/treemap/templates/treemap/field/inputs.html

@@ -43,7 +43,11 @@
     <input name="{{ field.identifier }}"
            type="text"
            class="{{ class|default_if_none:"" }} form-control"
-           value="{{ field.value|default_if_none:""|unlocalize }}"
+           {% if field.data_type == 'float' %}
+             value="{{ field.value|num_format|default_if_none:""|unlocalize }}"
+           {% else %}
+             value="{{ field.value|default_if_none:""|unlocalize }}"
+           {% endif %}
            {{ extra|default:"" }} />
     <span class="input-group-addon" {{ unit_extra|default:"" }}>{{ field.units }}</span>
   </div>

opentreemap/treemap/templatetags/form_extras.py

@@ -17,7 +17,7 @@
 
 from opentreemap.util import dotted_split
 
-from treemap.util import get_model_for_instance, to_object_name
+from treemap.util import get_model_for_instance, to_object_name, num_format
 from treemap.json_field import (is_json_field_reference,
                                 get_attr_from_json_field)
 from treemap.units import (get_digits_if_formattable, get_units_if_convertible,
@@ -430,6 +430,8 @@ def _field_value(model, field_name, data_type):
             display_vals = [choice['display_value'] for choice in choices
                             if choice['value'] == field_value]
             display_val = display_vals[0] if display_vals else field_value
+        elif data_type == 'float':
+            display_val = num_format(field_value)
         else:
             display_val = unicode(field_value)
 

opentreemap/treemap/templatetags/util.py

@@ -10,7 +10,7 @@
 from treemap.models import MapFeature, Tree, TreePhoto, MapFeaturePhoto, Audit
 from treemap.udf import UserDefinedCollectionValue
 from treemap.util import (get_filterable_audit_models, to_model_name,
-                          safe_get_model_class)
+                          safe_get_model_class, num_format as util_num_format)
 from treemap.units import Convertible
 
 
@@ -199,3 +199,8 @@ def udf_name(udf_identifier):
         raise ValueError('Unrecognized identifier %(id)s' % udf_identifier)
 
     return udf_identifier.split("udf:", 1)[1]
+
+
+@register.filter
+def num_format(num):
+    return util_num_format(num)

opentreemap/treemap/util.py

@@ -231,3 +231,10 @@ def make_udf_name_from_key(key):
 
 def make_udf_lookup_from_key(key):
     return 'udfs__{}'.format(key)
+
+
+def num_format(num):
+    if isinstance(num, float):
+        # Allow for up to 10 digits of precision, but strip trailing '0' or '.'
+        return '{0:.10f}'.format(num).rstrip('0').rstrip('.')
+    return num