def sql_explain(request):
"""Returns the output of the SQL EXPLAIN on the given query"""
form = SQLSelectForm(request.POST or None)
if form.is_valid():
sql = form.cleaned_data['raw_sql']
params = form.cleaned_data['params']
cursor = form.cursor
conn = form.connection
engine = conn.__class__.__module__.split('.', 1)[0]
if engine == "sqlite3":
# SQLite's EXPLAIN dumps the low-level opcodes generated for a query;
# EXPLAIN QUERY PLAN dumps a more human-readable summary
# See http://www.sqlite.org/lang_explain.html for details
cursor.execute("EXPLAIN QUERY PLAN %s" % (sql, ), params)
elif engine == "psycopg2":
cursor.execute("EXPLAIN ANALYZE %s" % (sql, ), params)
else:
cursor.execute("EXPLAIN %s" % (sql, ), params)
headers = [d[0] for d in cursor.description]
result = cursor.fetchall()
cursor.close()
context = {
'result': result,
'sql': form.reformat_sql(),
'duration': form.cleaned_data['duration'],
'headers': headers,
'alias': form.cleaned_data['alias'],
}
return render(request, 'debug_toolbar/panels/sql_explain.html',
context)
return HttpResponseBadRequest('Form errors')
def sql_profile(request):
"""Returns the output of running the SQL and getting the profiling statistics"""
form = SQLSelectForm(request.POST or None)
if form.is_valid():
sql = form.cleaned_data['sql']
params = form.cleaned_data['params']
cursor = form.cursor
result = None
headers = None
result_error = None
try:
cursor.execute("SET PROFILING=1") # Enable profiling
cursor.execute(sql, params) # Execute SELECT
cursor.execute("SET PROFILING=0") # Disable profiling
# The Query ID should always be 1 here but I'll subselect to get the last one just in case...
cursor.execute("SELECT * FROM information_schema.profiling WHERE query_id=(SELECT query_id FROM information_schema.profiling ORDER BY query_id DESC LIMIT 1)")
headers = [d[0] for d in cursor.description]
result = cursor.fetchall()
except:
result_error = "Profiling is either not available or not supported by your database."
cursor.close()
context = {
'result': result,
'result_error': result_error,
'sql': form.reformat_sql(),
'duration': form.cleaned_data['duration'],
'headers': headers,
'alias': form.cleaned_data['alias'],
}
return render_to_response('debug_toolbar/panels/sql_profile.html', context)
return HttpResponseBadRequest('Form errors')
def sql_explain(request):
"""Returns the output of the SQL EXPLAIN on the given query"""
form = SQLSelectForm(request.POST or None)
if form.is_valid():
sql = form.cleaned_data['sql']
params = form.cleaned_data['params']
cursor = form.cursor
conn = form.connection
engine = conn.__class__.__module__.split('.', 1)[0]
if engine == "sqlite3":
# SQLite's EXPLAIN dumps the low-level opcodes generated for a query;
# EXPLAIN QUERY PLAN dumps a more human-readable summary
# See http://www.sqlite.org/lang_explain.html for details
cursor.execute("EXPLAIN QUERY PLAN %s" % (sql,), params)
elif engine == "psycopg2":
cursor.execute("EXPLAIN ANALYZE %s" % (sql,), params)
else:
cursor.execute("EXPLAIN %s" % (sql,), params)
headers = [d[0] for d in cursor.description]
result = cursor.fetchall()
cursor.close()
context = {
'result': result,
'sql': form.reformat_sql(),
'duration': form.cleaned_data['duration'],
'headers': headers,
'alias': form.cleaned_data['alias'],
}
return render_to_response('debug_toolbar/panels/sql_explain.html', context)
return HttpResponseBadRequest('Form errors')
def sql_profile(request):
"""Returns the output of running the SQL and getting the profiling statistics"""
form = SQLSelectForm(request.POST or None)
if form.is_valid():
sql = form.cleaned_data['sql']
params = form.cleaned_data['params']
cursor = form.cursor
result = None
headers = None
result_error = None
try:
cursor.execute("SET PROFILING=1") # Enable profiling
cursor.execute(sql, params) # Execute SELECT
cursor.execute("SET PROFILING=0") # Disable profiling
# The Query ID should always be 1 here but I'll subselect to get the last one just in case...
cursor.execute("SELECT * FROM information_schema.profiling WHERE query_id=(SELECT query_id FROM information_schema.profiling ORDER BY query_id DESC LIMIT 1)")
headers = [d[0] for d in cursor.description]
result = cursor.fetchall()
except:
result_error = "Profiling is either not available or not supported by your database."
cursor.close()
context = {
'result': result,
'result_error': result_error,
'sql': form.reformat_sql(),
'duration': form.cleaned_data['duration'],
'headers': headers,
'alias': form.cleaned_data['alias'],
}
return render_to_response('debug_toolbar/panels/sql_profile.html', context)
return HttpResponseBadRequest('Form errors')
def sql_select(request):
"""Returns the output of the SQL SELECT statement"""
form = SQLSelectForm(request.POST or None)
if form.is_valid():
sql = form.cleaned_data['raw_sql']
params = form.cleaned_data['params']
cursor = form.cursor
cursor.execute(sql, params)
headers = [d[0] for d in cursor.description]
result = cursor.fetchall()
cursor.close()
context = {
'result': result,
'sql': form.reformat_sql(),
'duration': form.cleaned_data['duration'],
'headers': headers,
'alias': form.cleaned_data['alias'],
}
return render(request, 'debug_toolbar/panels/sql_select.html', context)
return HttpResponseBadRequest('Form errors')
def sql_select(request):
"""Returns the output of the SQL SELECT statement"""
form = SQLSelectForm(request.POST or None)
if form.is_valid():
sql = form.cleaned_data['sql']
params = form.cleaned_data['params']
cursor = form.cursor
cursor.execute(sql, params)
headers = [d[0] for d in cursor.description]
result = cursor.fetchall()
cursor.close()
context = {
'result': result,
'sql': form.reformat_sql(),
'duration': form.cleaned_data['duration'],
'headers': headers,
'alias': form.cleaned_data['alias'],
}
return render_to_response('debug_toolbar/panels/sql_select.html', context)
return HttpResponseBadRequest('Form errors')
