Facing issue to connect to SQLLITE table using raw sql - django

Question

I'm trying to connect to SQLite table using a raw sql query but unsuccessfully.
Here is my model:
class CsqAgentReport(models.Model):
nodeid_sessionid_sequenceno = models.TextField(db_column='NodeID-SessionID-SequenceNo', blank=True, null=True) # Field name made lowercase. Field renamed to remove unsuitable characters.
callstarttime = models.TextField(db_column='CallStartTime', blank=True, null=True) # Field name made lowercase.
callendtime = models.TextField(db_column='CallEndTime', blank=True, null=True) # Field name made lowercase.
contactdisposition = models.IntegerField(db_column='ContactDisposition', blank=True, null=True) # Field name made lowercase.
originatordn_callingnumber_field = models.IntegerField(db_column='OriginatorDN(CallingNumber)', blank=True, null=True) # Field name made lowercase. Field renamed to remove unsuitable characters. Field renamed because it ended with '_'.
destinationdn = models.IntegerField(db_column='DestinationDN', blank=True, null=True) # Field name made lowercase.
callednumber = models.IntegerField(db_column='CalledNumber', blank=True, null=True) # Field name made lowercase.
pivotoriginatordn = models.TextField(db_column='PivotOriginatorDN', blank=True, null=True) # Field name made lowercase.
pivotcallednumber = models.TextField(db_column='PivotCalledNumber', blank=True, null=True) # Field name made lowercase.
csqnames = models.TextField(db_column='CSQNames', blank=True, null=True) # Field name made lowercase.
queuetime = models.TextField(db_column='QueueTime', blank=True, null=True) # Field name made lowercase.
agentname = models.TextField(db_column='AgentName', blank=True, null=True) # Field name made lowercase.
ringtime = models.TextField(db_column='RingTime', blank=True, null=True) # Field name made lowercase.
talktime = models.TextField(db_column='TalkTime', blank=True, null=True) # Field name made lowercase.
worktime = models.TextField(db_column='WorkTime', blank=True, null=True) # Field name made lowercase.
nomcsq = models.TextField(db_column='NomCSQ', blank=True, null=True) # Field name made lowercase.
idunique = models.IntegerField(db_column='IDUnique', blank=True, null=True) # Field name made lowercase.
originatordnhandeled = models.IntegerField(db_column='OriginatorDNHANDELED', blank=True, null=True) # Field name made lowercase.
originatordnnothandeled = models.IntegerField(db_column='OriginatorDNNOTHANDELED', blank=True, null=True) # Field name made lowercase.
outboundmissedcall = models.TextField(db_column='OutboundMISSEDcall', blank=True, null=True) # Field name made lowercase.
missedcallshandeledy_n = models.IntegerField(db_column='MISSEDCALLSHANDELEDY-N', blank=True, null=True) # Field name made lowercase. Field renamed to remove unsuitable characters.
class Meta:
managed = False
db_table = 'CSQ Agent Report'
Here is the view I created:
def csq_detail_view(request):
with connection.cursor() as cursor:
cursor.execute("SELECT * FROM 'CsqAgentReport'")
obj = cursor.fetchone()
context = {
'object': obj
}
return render(request,"CSQ/detail.html",{context})
and here is the html:
{% extends 'base.html' %}
{% block content %}
<ul>
{% for var_nbr_app_repond in object %}
<li> {{var_nbr_app_repond}} </li>
{% endfor %}
{% endblock %}
The error message is the following :
Request Method: GET
Request URL: http://127.0.0.1:8000/CSQ_Detail/
Django Version: 3.0.5
Exception Type: OperationalError
Exception Value:
no such table: CsqAgentReport.

Answer 1

no such table: CsqAgentReport.
the error is self explanatory, did you create the database ? is there sqlite3 file in your project root folder ?
run those commands :
(venv) python manage.py makemigrations
to create a migration for your model, and
(venv) python manage.py migrate
to create associated table in your database.
Update
you've made a mistake, refer to https://docs.djangoproject.com/en/3.1/ref/models/options/#db-table on how to rename/override table name using db_table in Meta class. it should be:
class CsqAgentReport(models.Model):
[..]
class Meta:
managed = False
db_table = 'csq_agent_report' # HERE snake lower-cased strings
Update 2
since you've renamed db_table to csq_agent_report instead the default one CsqAgentReport you should update the sql statement to
cursor.execute("SELECT * FROM 'csq_agent_report'")
in return statement you don't need to wrap context in dictionary {..} because it's already.
change those 2 lines:
def csq_detail_view(request):
with connection.cursor() as cursor:
cursor.execute("SELECT * FROM 'CsqAgentReport'") # HERE
obj = cursor.fetchone()
context = {
'object': obj
}
return render(request,"CSQ/detail.html",{context}) # HERE
to
def csq_detail_view(request):
with connection.cursor() as cursor:
cursor.execute("SELECT * FROM 'csq_agent_report'") # HERE
obj = cursor.fetchone()
context = {
'object': obj
}
return render(request,"CSQ/detail.html", context) # HERE
Update 3
you have to change managed to True instead Flase
refer to https://docs.djangoproject.com/en/3.1/ref/models/options/#managed
class CsqAgentReport(models.Model):
[..]
class Meta:
managed = True # Here
db_table = 'csq_agent_report' # HERE snake lowercased strings
and don't forget to rerun migration commands.