python - SQLAlchemy class __init__() meets takes at least 5 non-keyword arguments error -

-

i wrote code

user class sqlalcemy

##############models.py class user(base,usermixin):     __tablename__ = 'users'     id = column(integer, sequence('seq_user_id'), primary_key=true)     name = column(string(50), unique=true, index = true, nullable = false)     email = column(string(120), unique=true, index = true, nullable = false)     password = column(string(128), nullable = false)     registerdate = column(date, nullable = false)      def __init__(self, name, email, password, registerdate):         self.name = name         self.email = email         self.password = password         self.registerdate = datetime.datetime.now()      def __repr__(self):         return '<user %r>' % (self.name)      def is_authenticated(self):         return true      def is_active(self):         return true      def is_anonymous(self):         return false      def get_id(self):         return unicode(self.id)

then wrote code create test user

############## frontend.py @app.route('/createuser') def createuser():     user_jacky = user(name='jacky',email='jacky@test.com',password=md5.new('123').hexdigest())     db_session.add(user_jacky)     db_session.commit()     return redirect(url_for('index'))

when access http://test.com/createuser, system told me "typeerror: init() takes @ least 5 non-keyword arguments (4 given)". read document of sqlalchemy again, that's same code, not need pass value self. happend?

the problem __init__ expects pass in registerdate, aren't providing 1 when __init__ called through line:

user(name='jacky',email='jacky@test.com',password=md5.new('123').hexdigest())

if registerdate should now(), can leave out parameter:

def __init__(self, name, email, password):     self.name = name     self.email = email     self.password = password     self.registerdate = datetime.datetime.now()

if want able provide registerdate, should default now(), can this:

def __init__(self, name, email, password, registerdate=none):     self.name = name     self.email = email     self.password = password     self.registerdate = registerdate or datetime.datetime.now()

Comments

Post a Comment

Popular posts from this blog

c++ - Linked List error when inserting for the last time -

-
so have part of code here this loop 5 times (max = 5) insert word link list. for ( int = 0 ; < max ; i++ ) { string alphabet = g->returnalphabets(); l[i]->addwords(alphabet[i]); } and have insert word part here string line; fstream myfile ("words.txt"); while (!myfile.eof()) { getline(myfile,line); if ( alphabet == line[0] ) { listnode *newnode = new listnode; if ( head == null ) { newnode->item = alphabet; newnode->next = null; head = newnode; } else { newnode->item = line; prev = cur; prev->next = newnode; } cur = newnode; } } myfile.close(); my problem gives me error on last loop. meaning on max = 4, insert node. rest of loop fine. when decrease max 4 meaning loop 4 times, program error-free when program loops 5 times gives error. anyone can poin...
Read more

java - activate/deactivate sonar maven plugin by profile? -

-
i use sonar plugin executes if activated in maven profile. sonar runs on every compile. the problem build fail other team members not have sonar application installed locally. pom.xml checked in team members same copy including sonar configuration, don't want them modify purpose of disabling sonar (they might inadvertently check modified copy in). please advise how configure maven (.m2/settings.xml) and/or pom.xml sonar feature can enabled/disabled local profile. here sonar configuration in each project's pom.xml: <plugin> <groupid>org.codehaus.mojo</groupid> <artifactid>sonar-maven-plugin</artifactid> <version>1.0</version> <executions> <execution> <id>make-sonar</id> <phase>compile</phase> <goals> <goal>sonar</goal> </goals> </execution> </executions> ...
Read more

xml - How do I use an xdoxslt variable inside xsl code, in BI Publisher? -

-
i trying create loop increments variable, use variable inside of xsl code. here code using increment counter: <?xdoxslt:set_variable($_xdoctx, ‘counter’, 0)?> <?for-each-group:$g2;./status?> <?sort:current-group()/status;'ascending';data-type='text'?> <?xdoxslt:set_variable($_xdoctx, ‘counter’, xdoxslt:get_variable($_xdoctx, ‘counter’) + count(xdoxslt:distinct_values(current-group()/action)))?> <?end for-each-group?> the following code output number need: <xsl:value-of select="xdoxslt:get_variable($_xdoctx, ‘counter’)"/> so know loop working , variable has correct number. however, need use variable in following code: <xsl:attribute name="number-rows-spanned" xdofo:ctx="block"> <xsl:value-of select="xdoxslt:get_variable($_xdoctx, ‘counter’)"/> </xsl:attribute> when use code following error: java.lang.numberformatexception: input string: "" i...
Read more