cass | Cassandra client for Go
kandi X-RAY | cass Summary
kandi X-RAY | cass Summary
Cassandra client for Go
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Top functions reviewed by kandi - BETA
- NewCfDef returns a new cfdef object
- NewCassandraProcessor creates a new CassandraProcessor .
- getConnFromPool retrieves a connection from the pool
- makeMutationMap creates a new mutation map for a given mutate map
- FromConsistencyLevelString converts a string to a ConsistencyLevel
- CloseAll closes all connections
- NewKeyRange creates a new KeyRange
- NewKsDef creates a new KsDef
- FromIndexOperatorString converts string to IndexOperator
- retryForClosedConn is used to retry a connection to a connection .
cass Key Features
cass Examples and Code Snippets
Community Discussions
Trending Discussions on cass
QUESTION
I have two large-ish data frames I am trying to append...
In df1, I have state codes, county codes, state names (Alabama, Alaska, etc.), county names, and years from 2010:2020.
In df2, I have county names, state abbreviations (AL, AK), and data for the year 2010 (which I am trying to merge into df1. The issue lies in that without specifying the state name and simply merging df1 and df2, some of the data which I am trying to get into df1 is duplicated due to there being some counties with the same name...hence, I am trying to also join by state to prevent this, but I have state abbreviations, and state names.
Is there any way in which I can make either the state names in df1 abbreviations, or the state names in df2 full names? Please let me know! Thank you for the help.
Edit: dput(df2)
...ANSWER
Answered 2022-Apr-18 at 03:52Here's one way you could turn state abbreviations into state names using R's built in state vectors:
QUESTION
I'm new with owlread2. I'm want to implement a relationship like
...ANSWER
Answered 2022-Jan-12 at 08:08After i kept digging, i found the solution. the Or() statement needs to be in brackets.
QUESTION
I'm trying to run K8ssandra but the Cassandra container keeps failing with the following message (Repeating over and over):
...ANSWER
Answered 2022-Jan-05 at 01:25I was able to fix this by increasing the memory to 12Gi
QUESTION
I have a field in the Database like [OrderDay]
which is of the type nvarchar(3)
I have used the EF core to scaffold the Model, Views and Controller. Now the field allows the users to freely type any values as it is
ANSWER
Answered 2021-Nov-15 at 21:40In your form:
QUESTION
Hi I have an array of objects which contains another array of objects.
I need to find an object in array which contains another object in it's array with certain propery
ID.
Let's say i need to find an object in casses
array which contains a user with certain ID.
ID for user is unique.
ANSWER
Answered 2021-Nov-15 at 14:01Assume your case with ID
set to "3"
Try below
QUESTION
I'm working in a Project where there were multiple fields created as M2M using the through
related model, however they were wrongly created by then and the related models have no additional fields, so I would like to use a regular M2M managed by Django.
The existing models I have are:
...ANSWER
Answered 2021-Nov-13 at 18:12To do this you need to create a migration file that copies the data from the old through table to the new one.
First create an empty migration file that will be populated with our migration operations
QUESTION
I am new to this and I am trying to understand what is going on here, where I get two shift reduce conflicts. I have grammar (If I am missing something I can add the needed rules):
...ANSWER
Answered 2021-Nov-12 at 19:13One of the easiest ways to create a shift-reduce conflict is to introduce a new non-terminal representing an optional instance:
QUESTION
I'd like my html page to not show anymore the form once it is submitted by my user and instead I'd like to show a page with a message that say that the form was already submitted.
I thought to use the registration date to determinate whatever the form is submitted or not but this is the error I'm getting when the form is not submitted 'NoneType' object has no attribute 'registration_date'
while the code works if there is already a form submitted. I aso don't know if it good to use the presence of the absence of the registration date to determinate if the form is submitted, I've added the profile_submitted
BooleanField in my models file but I'm not able to switch it to true and use it.
models.py
...ANSWER
Answered 2021-Oct-20 at 16:11Your code tries to get "registration_date" on that UserProfile instance and it gets that UserProfile instance using "request.user", i.e. the logged in user. If the user isn't logged in, that will return an empty QuerySet and if you take the first element, it'll return None.
You can't call "registration_date" on None.
Maybe check if you are logged in? Or if it's a profile linked to a user check out how to extend the user model:
https://simpleisbetterthancomplex.com/tutorial/2016/07/22/how-to-extend-django-user-model.html
QUESTION
It is supposed to be easy but I can not work it out..., you include arg "fields" with value "all_with_meta" and you should get the user metas. My code:
...ANSWER
Answered 2021-Oct-05 at 18:25Unfortunately, according to the Codex entry for
WP_User_Query()` , under the return values sections is following:
If ‘fields‘ is set to ‘all’ (default), or ‘all_with_meta’, it will return an array of WP_User objects (does not include related user meta fields even with ‘all_with_meta’ set).
There's also a note in the Parameters section above:
*’all_with_meta’ currently returns the same fields as ‘all’ which does not include user fields stored in wp_usermeta. You must create a second query to get the user meta fields by ID or use the __get PHP magic method to get the values of these fields.
What that means, is that currently (as of this Q/A, with WordPress 5.8.1) you'll need to grab the user meta separately, either with the get_user_meta()
function or the magic methods. For instance:
QUESTION
Host A: 192.168.0.200/16
- Netmask: 255.255.0.0
- Net ID: 192.168.0.0
- Host ID: 0.200
- Network Range: 192.168.0.0 .. 192.168.255.255
Host B: 192.168.1.1/24
- Netmask: 255.255.255.0
- Net ID: 192.168.1.0
- Host ID: 1
- Network Range: 192.168.1.0 .. 192.168.1.255
Question A: Can A send packets to B ? Question B: Can B send packets to A ?
Please explain me why not, if this is the casse
...ANSWER
Answered 2021-Aug-20 at 13:21Assuming that these host are physically connected to 1 switch, the obvious answer would be a->b possible, b->a not possible.
The picture is however a bit more complicated. If you test this with wireshark, the problem becomes immediately visible.
Host a A will initiate the communication. It will send-out an ARP packet "who has 192.168.1.1? Tell 192.168.0.200." So Host B will say: "hey, that's me, eh, I'm not on that network" It depends a bit on the IP stack of host B, but in general will not send an ARP reply to host A. Since host A does not get an answer to its ARP request, it will assume that the host B is unreachable.
B sees that host A is not in its subnet. Therefore, B will send the packets to the gateway, which is not mentioned here.
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