Adds drag-and-drop ordering of rows in the admin list view for Grappelli. This is based on Snippet #2057 and fixes some bugs as well as switching to jQuery/jQuery UI provided by Grappelli. No additional files need to be installed.
The model needs to have a field holding the position and that field has to be made list_editable in the ModelAdmin. The changes of the ordering are applied after clicking 'Save'.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 | # models.py
class MyModel(models.Model):
position = models.IntegerField() # The position field
...
def save(self, *args, **kwargs):
model = self.__class__
if self.position is None:
# Append
try:
last = model.objects.order_by('-position')[0]
self.position = last.position + 1
except IndexError:
# First row
self.position = 0
return super(MyModel, self).save(*args, **kwargs)
class Meta:
ordering = ('position',)
# admin.py
class MyModelAdmin(admin.ModelAdmin):
class Media:
js = (
'js/admin_list_reorder.js',
)
list_display = ('position',) # Don't forget to add the other fields that should be displayed in the list view here
list_editable = ('position',) # 'position' is the name of the model field which holds the position of an element
admin.site.register(MyModel, MyModelAdmin)
# admin_list_reorder.js
django.jQuery(document).ready(function() {
// Set this to the name of the column holding the position
pos_field = 'position';
// Determine the column number of the position field
pos_col = null;
cols = django.jQuery('.changelist-results tbody tr:first').children()
for (i = 0; i < cols.length; i++) {
inputs = django.jQuery(cols[i]).find('input[name*=' + pos_field + ']')
if (inputs.length > 0) {
// Found!
pos_col = i;
break;
}
}
if (pos_col == null) {
return;
}
// Some visual enhancements
header = django.jQuery('.changelist-results thead tr').children()[pos_col]
django.jQuery(header).css('width', '1em')
django.jQuery(header).children('a').text('#')
// Hide position field
django.jQuery('.changelist-results tbody tr').each(function(index) {
pos_td = django.jQuery(this).children()[pos_col];
input = django.jQuery(pos_td).children('input').first();
input.hide();
label = django.jQuery('<strong>' + input.attr('value') + '</strong>');
django.jQuery(pos_td).append(label);
});
// Determine sorted column and order
sorted = django.jQuery('.changelist-results thead th.sorted');
sorted_col = django.jQuery('.changelist-results thead th').index(sorted);
sort_order = sorted.hasClass('descending') ? 'desc' : 'asc';
if (sorted_col != pos_col) {
// Sorted column is not position column, bail out
console.info("Sorted column is not %s, bailing out", pos_field);
return;
}
django.jQuery('.changelist-results tbody tr').css('cursor', 'move');
// Make tbody > tr sortable
django.jQuery('.changelist-results tbody').sortable({
axis: 'y',
items: 'tr',
cursor: 'move',
update: function(event, ui) {
item = ui.item;
items = django.jQuery(this).find('tr').get();
if (sort_order == 'desc') {
// Reverse order
items.reverse();
}
django.jQuery(items).each(function(index) {
pos_td = django.jQuery(this).children()[pos_col];
input = django.jQuery(pos_td).children('input').first();
label = django.jQuery(pos_td).children('strong').first();
input.attr('value', index);
label.text(index);
});
// Update row classes
django.jQuery(this).find('tr').removeClass('row1').removeClass('row2');
django.jQuery(this).find('tr:even').addClass('row1');
django.jQuery(this).find('tr:odd').addClass('row2');
}
});
});
|
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