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I want to show my posts posted according to days (dates). Can anyone help me on this I will be very grateful.
Def index
#users = User.all
end
I want my output according to date.
User can store post.title and post.content but i want all the posts according to dates as below
Example:
2nd December
post1
post2
post3
3rd December
post4
post5
4th December
no post
#grouped_posts = Post.group("date(created_at)")
or you can also do
Post.all.group_by {|post| post.created_at.to_date}
Documentation here
Related
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Currently, I have 3 columns : booking_date, booking_time_from, booking_time_to.
Problem is how can i get all data have booking time 2 hours ago using Active Support ?
Booking.where([booking_time], 2.hours.ago.to_datetime)
I'm not sure about what's the difference between booking_time_from and booking_time_to, and which column that the booking time you're referring here. Let's assume it's booking_time_to, you can
Booking.where("booking_time_to < ?", 2.hours.ago)
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I want to calculate the number of months between two dates. I want the result in decimal point. For example, if my date range is "2017-02-01" to "2017-03-1", then I am expecting the number of months to be something like 1.033 in decimal.
Please help.
You should be able to do something like this
#Mondel.time_diff_in_months("2017-03-01", "2017-02-01")
def time_diff_in_months(grater_date, lesser_date)
Time.at(grater_date.to_time - lesser_date.to_time).month # 1
end
I hope that this helps
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Sorry for my English. I have a model with some field.
How to add a number to a current value in field?
I want to add the number several times
i generated scaffold.I use this to create modal. But i want to add number to a current value when i clicked submit
#foo = Foo.first
#foo.bar += 10
#which is a shorter way of saying #foo.bar = #foo.bar + 10
#foo.save
If this isn't helpful, please add some more details to your question, eg your example code you have so far.
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I am trying to populate column_name with items from #enc. Problem is #update_all updates all fields with last item in array?
Last item is "MPq3KSzDzLvTeYh+h00HD+5FAgKoNksykJhzROVZWbIJ36WNoBgkSoicJ5wx\nog0g\n".
I am trying to populate with all items from array not just last.
I hope question is clear?
I tried #update_attributes, but no success?
Help.
Thanks
#enc=["hUt7ocoih//kFpgEizBowBAdxqqbGV1jkKVipVJwJnPGoPtTN16ZAJvW9tsi\n3inn\n", "wGNyaoEZ09jSg+/IclWFGAXzwz5lXLxJTUKqCFIiOy3ZXRgdwFUsNf/75R2V\nZm83\n", "MPq3KSzDzLvTeYh+h00HD+5FAgKoNksykJhzROVZWbIJ36WNoBgkSoicJ5wx\nog0g\n"]
#enc.each do |i|
PaymentMethod.update_all(enc_number: i)
end
PaymentMethod.all.each_with_index do |payment, n = 0|
payment.update_column(:enc_number, #enc[n])
n +=1
end
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Hi I have a option on my web app to show the last 5 submissions. But only by the Post ID. Not by every table within the post ID if that makes sense. So when someone clicks 'recent submissions' it shows them 5 Id numbers not every single table in the id.
Post.order('created_at DESC').limit(5)
if you require only the id of the last 5 elements, then do as below:
#first_five_posts = Post.order('created_at DESC').limit(5).pluck(:id)
VIEW
<%= #first_five_posts %>