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Very pretty print of Django objects
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from django.db import models | |
def vpprint(item): | |
""" | |
Very pretty print of Django objects | |
:param item: Object to print | |
:return: None | |
""" | |
print(item.__class__.__name__) | |
_vpprint(item, [item.__class__.__name__], set()) | |
def _vpprint(item, parents, visited): | |
todo = [] | |
visited.add(item.__class__.__name__) | |
for name in dir(item): | |
if name[0] == "_" or name.isupper(): | |
continue | |
try: | |
v = getattr(item, name) | |
if callable(v): | |
# Don't bother with callables. Properties have already been called so we get those! | |
continue | |
if ( | |
name.endswith("_id") | |
and hasattr(item, name[:-3]) | |
and isinstance(getattr(item, name[:-3]), models.Model) | |
): | |
# If this is the id used for a foreign key don't print it - we print the related | |
# object. | |
continue | |
if len(parents): | |
prefix = " " * len(parents) + "↳" | |
else: | |
prefix = "" | |
if isinstance(v, models.Model): | |
todo.append((name, v)) | |
elif isinstance(v, models.QuerySet): | |
q = f"[... {len(v)} items ...]" | |
print(prefix, f"{name:>40} {q:<40} {type(v)}") | |
else: | |
print(prefix, f"{name:>40} {str(v):<40} {type(v)}") | |
except: | |
pass | |
for name, v in todo: | |
if v.__class__.__name__ in visited: | |
continue | |
print(" " * len(parents), f"{name} ({v.__class__.__name__})") | |
_vpprint(v, parents + [name], visited) |
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