The NewContent.data() method retrieves database rows. The render
method for this class creates a form out of each row. When the form is
submitted the user can input a new value for the Content field of the
database row.
In ConfigureContent.answer() I attempt to update the database
row. However even though the database row is updated in memory, (1)
database.session does not know that the session is dirty and should be
commited (2) the database does not get updated.
How can I alter this code to update the database? I'm aware that I
could query the database and update, but that seems absolutely
wasteful as I already have the object here.
class NewContent(object):
def __init__(self):
pass
def data(self):
return database.session.query(
models.OBFL_Log_ParsingErrors).filter(
models.OBFL_Log_ParsingErrors.Type_Of_Record == 'Error')
def config(self, comp, dbrow):
print "Calling config"
comp.becomes(ConfigureContent(dbrow))
#r = comp.call(util.Ask("does she love me?"))
#r = comp.becomes(util.Ask("does she love me?"))
print "ask does finish?. "
@presentation.render_for(NewContent)
def render(self, h, comp, *args):
for le in self.data()[:100]:
#print "rowdict={0}".format(row)
with h.div:
with h.form.post_action(self.config, comp, le):
h << h.input(type='Submit', value='Delete')
h << h.input(value=le.File_ID, disabled=True)
h << h.input(value=le.File_Name, disabled=True)
h << h.input(value=le.Line_Start, disabled=True)
h << h.input(value=le.Content, disabled=True)
h << h.input(type='Submit', value='Configure')
return h.root
class ConfigureContent(object):
"""Ask the user to enter a line of text
The text entered is answered
"""
def __init__(self, database_row):
"""Initialization
In:
- ``msg`` -- message to display
"""
self.dbrow = database_row
print "Config init complete"
@staticmethod
def cleancheck():
print "Dirty check {0}".format(database.session.dirty)
def answer(self, comp, r):
self.cleancheck()
print "R={0}. dbrowdict={1}".format(
r(), self.dbrow.__dict__)
self.dbrow.Content = r()
print "R={0}. dbrowdict={1}".format(
r(), self.dbrow.__dict__)
self.cleancheck()
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