Ruby on Rails

On 29 March 2017 at 13:37, fugee ohu <fugee279@gmail.com> wrote:
> Trying to validate presence where another field is not null
> I found this example, the opposite
>
> class Person < ApplicationRecord
> validates :surname, presence: true, if: "name.nil?"
> end
>
> How do I change the if: condition to name not nil?

Why have you asked twice? I have responded to the other one.

Colin

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On 29 March 2017 at 13:35, fugee ohu <fugee279@gmail.com> wrote:
> Trying to validate presence where another field is not null
> I found this example, the opposite
>
> class Person < ApplicationRecord
> validates :surname, presence: true, if: "name.nil?"
> end
>
> How do I change the if: condition to name not nil?

In this particular case I would use unless:, or "!name.nil?" if you prefer.

Colin

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Hi. You should use different names for association and for foreign key for this association. Looks like they are overlapping, just rename association name to fit ar conventions - and it should work.

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Hi,

On Wed, Mar 29, 2017, at 02:37, tom wrote:
> hi,i am trying to use ror on a legacy system.
>
>
> model:
> belongs_to :ProvincialTaxAreaCode, class_name: "TaxArea", foreign_key:
> "ProvincialTaxAreaCode" #, primary_key: "ProvincialTaxAreaCode"
>
> ProvincialTaxAreaCode is a varchar(20)
>
>
> html-slect:
> <select class="select optional form-control"
> name="record[ProvincialTaxAreaCode]"
> id="record_ProvincialTaxAreaCode"><option value=""></option>
> <option value="1">test- 123</option></select>
>
> error:
> ActiveRecord::AssociationTypeMismatch (TaxArea(#109333370) expected, got
> String(#70918210)):
>
> how can i still use the varchar field without converting it???
>

I don't think you can use same name for attribute and association
because it'll be confusing (what does model.ProvincialTaxAreaCode mean?
Is it the attribute or the association?). Try naming the association
something else.

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On Tue, Mar 28, 2017 at 12:05 PM, tom <tomabroad@gmail.com> wrote:
> where do you see a string?

To repeat quoting you:

> model:
> belongs_to :ProvincialTaxAreaCode

> ProvincialTaxAreaCode is a varchar(20)

Did you look at the Rails guide link I included?
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On Tue, Mar 28, 2017 at 10:37 AM, tom <tomabroad@gmail.com> wrote:

> model:
> belongs_to :ProvincialTaxAreaCode, class_name: "TaxArea", foreign_key:
> "ProvincialTaxAreaCode" #, primary_key: "ProvincialTaxAreaCode"
>
> ProvincialTaxAreaCode is a varchar(20)

?? A model "belongs_to" another model, not a string.

This might help:

http://guides.rubyonrails.org/association_basics.html#the-belongs-to-association

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On Sun, Mar 26, 2017 at 10:05 PM, fugee ohu <fugee279@gmail.com> wrote:
> in application.html.erb if <div id="side"> has no contents to display when
> the page loads, should it still have any width?

Not even remotely a Rails question.

I'd have to think there are general web-dev lists/forums for posting
questions about HTML and CSS. Or you could read the specs...

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On 27 March 2017 at 05:02, fugee ohu <fugee279@gmail.com> wrote:
> rake db:create db:schema:load creates tables without id column and migration
> shows id="false" as it runs
> of course, this isn't what i want; how do i run the same command with a
> switch or argument to use id="true" instead and why this default behavior?

No need to ask twice. I have responded in your original post.

Colin

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On 27 March 2017 at 04:59, fugee ohu <fugee279@gmail.com> wrote:
> rake db:create db:schema:load creates tables without id column and migration
> shows id="false" as it runs
> of course, this isn't what i want; how do i run the

What is in the schema definition file? That is db/schema.rb.

Colin

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On 27 March 2017 at 04:55, fugee ohu <fugee279@gmail.com> wrote:
>
>
> On Saturday, March 25, 2017 at 2:26:18 PM UTC-4, Клим wrote:
>>
>> Remove gem 'slim-rails' from your Gemfile and run bundle install.
>>
>>
>>
>>
>> пятница, 24 марта 2017 г., 17:11:01 UTC+3 пользователь fugee ohu написал:
>>>
>>> I created an app without ever invoking `rails new ...` because i copied
>>> and pasted another app to begin building the app Now when I run the
>>> generator it generates slim templates How do I make it generate ordinary
>>> html.erb templates instead?
>
>
> Yea I searched my Gemfile but I missed it Found it after I posted I realize
> now that it may need to be installed as a dep, for what i dunno, but it was
> in my Gemfile, I'll leave it installed but not in my Gemfile

Whether it is installed or not is irrelevant, what matters is whether
it is in your Gemfile and Gemfile.lock. The reason it had been
installed was because it was in the Gemfile, not the other way round
(unless you installed it manually).

Colin

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On Sun, Mar 26, 2017 at 4:28 PM, Raina Millay <rmmillay@gmail.com> wrote:
> I edited the file in Atom, and yes I closed out Atom and opened it back up
> again after I edited it.

That has nothing to do with the question: did you *restart* the rails
server after editing the config/database.yml file?

> I just started, I don't have the console set up yet because I haven't been
> able to get past this step.

There's nothing to "set up" - it's built in; "rails console" is the command
to run. Try it and see if you can access your ActiveRecord models.

Or alternatively, "rails dbconsole" should give you direct access to the
DB command line.

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