Rails Console - Find where created at = certain day

rails find by attribute
rails console find by id
rails where multiple conditions
rails where like
rails joins
rails sql query
rails where greater than
rails select query

With Ruby on Rails console, is it possible to query the database for all records created on a certain day?

something like

date = "january 5 2013"
users = User.find(:all, :conditions => {:created_at => date})

You can do it like this:

date = Date.parse('january 5 2013')
users = User.where(created_at: date.midnight..date.end_of_day)

Active Record, Using ActiveRecord the standard way: MyModel.where("created_at < ?", 2.days.​ago). Using the underlying Arel interface: find_or_create_by(attributes, &block) public Finds the first record with the given attributes, or creates a record with the attributes if one is not found: # Find the first user named "Penélope" or create a new one.

Try this,

User.where("Date(updated_at) = ?", "2018-02-9")

Active Record Query Interface, To retrieve objects from the database, Active Record provides several finder methods. This will find all clients created yesterday by using a BETWEEN SQL This will return single order objects for each day, but only for the last month. rails destroy model Subjects. Note that it will destroy anything that the generate has created, not only the model. But also the database migration file for that specific model. Why use Rails Console? My answer is that its easier to write scripts in the rails console compared to writing sql statements in the mysql console.

Yes, It is possible like:

date = Date.parse("january 5 2013")
users = User.where(created_at: date)

but created_at is type of date-time like 2014-01-28 08:35:00.9608

and I think All user have different created_at

So you may used like this

User.where("created_at = ?", "2014-01-23 16:19:48.199086")

Active Record Query Interface, To retrieve objects from the database, Active Record provides several finder methods. This will find all clients created yesterday by using a BETWEEN SQL This returns the date and total price for each order object, grouped by the day they  1.4 rails console. The console command lets you interact with your Rails application from the command line. On the underside, rails console uses IRB, so if you've ever used it, you'll be right at home. This is useful for testing out quick ideas with code and changing data server-side without touching the website.

You can also do it like

User.where("created_at::date = ?", "january 5 2013".to_date)

4.6. Searching and Finding with Queries, rails console Loading development environment (Rails 3.2.9) created_at: datetime, updated_at: datetime) >> Album.find([5]).class Album With the method where , you can search for specific values in the database. one day, then EXPLAIN is a good debugging method, for example to find out where to place an index. The method find generates an exception if the ID you are searching for does not have a record in the database. If in doubt, you can/must use where (see the section called “where”), find_by_* (see the section called “Attribute Based find_by_*, find_last_by_* and find_all_by_* (find_by_attributes)”) or first check with the method exists?

If you see the follow link Don't use BETWEEN (especially with timestamps) You will note that you can have problems.

Instead you can use

users = User.where('created_at >= ? and created_at <=?', date.midnight, date.end_of_day)

"SELECT \"users\".* FROM \"users\" WHERE (created_at >= '2018-05-17 07:00:00' and created_at <='2018-05-18 06:59:59.999999')"

Rails tip – Grouping ActiveRecord objects by day or week using , Rails tip – Grouping ActiveRecord objects by day or week using datetrunc So we might get away with using Ruby to order a few hundred records, datetrunc is really simple, it truncates a date down to a certain precision. Linux and UNIX like operating systems do not store file creation time. However, you can use file access and modification time and date to find out file by date. For example, one can list all files that have been modified on a specific date. Let us see how to find file by date on Linux. You need to use the NA command and NA command.

ActiveRecord Find By Year, Day or Month on a Date field · GitHub, activerecord-find-by-year-day-or-month-on-a-date-field.rb. Model.where(:​date_column => date). Model.where('extract(year from date_column) = ?', desired_year). A protip by tadas_t about ruby, rails, and irb. If you are working with Rails 3 or 4 applications, you might find this helpful.

Working with date ranges in Active Record, When you're trying to get records for a particular date range in Active Record, Post.where(created_at: beginning_of_month..end_of_month) which is probably not what you want, as it misses the last days posts completely. You can see the object we got in the Rails console output. Notice that its attributes are all set to "nil": #<Post id: nil, title: nil, created_at: nil, updated_at: nil> You can set the attributes the same way you would on any other Ruby object. Let's assign a title for this new Post: post.title = "Hello, console!"

Easy Datetime Comparison With ActiveRecord and Rails, In most web applications that you build you'll probably find yourself needing to datetime display because that is another post for another day. Despite the popularity of window managers that offer graphical user interfaces, the best way to search for files in Linux requires a shell. The find command, with its myriad options and switches, offers the most powerful and precise features to surface what you're looking for.