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Craig White

2006-Feb-19 20:03 UTC

[Rails] building multiple find conditions

I am trying to allow for AND type ''find'' but to allow for
simply a
single set of find criteria.

controller code...

@vw_string = @vw_string1 = @vw_string2 = @vw_string3 = []

      if params[:beg_intake_date] != "" then
        @vw_string1 = ["intake_date between ? and ?",
        params[:beg_intake_date], params[:end_intake_date] ]
      end

      if params[:beg_referral_date] != "" then
        @vw_string2 = ["referral_date between ? and ?",
        params[:beg_referral_date], params[:end_referral_date] ]
      end

      if params[:beg_discharge_date] != "" then
        @vw_string3 = ["discharge_date between ? and ?",
        params[:beg_discharge_date], params[:end_discharge_date] ]
      end

->  @vw_string = [@vw_string1, @vw_string2, @vw_string3]

      @placement_pages, @placements = paginate(
        :placements, 
        :conditions => @vw_string,
        :include => [:client, :case_manager, :facility],
        :order_by => ''referral_date'',
        :per_page => 14)

The above setup gives me an error ''undefined method ''%"
for []:Array

Same thing if I set...

@vw_string = @vw_string1, @vw_string2, @vw_string3

and if I do it like this...

@vw_string = [@vw_string1] [@vw_string2] [@vw_string3]

I get can''t convert Array into Integer

How can I get the @vw_string into something that allows for
''AND''
conditions or singular conditions if only 1 criteria resulted from a
search?

Craig

Ezra Zygmuntowicz

2006-Feb-19 22:07 UTC

head link

[Rails] building multiple find conditions

Craig-

	You can do this quite easily with my ez_where plugin, get it from  
svn here:

http://opensvn.csie.org/ezra/rails/plugins/dev/ez_where/

	And here is an example of doing what you want to do with it, I am  
assuming that your model is called Placement. Note that in my plugin  
the shorthand for a BETWEEN ? AND ? query is <=> the spaceship  
operator ;-) Also note that I am using the range operator ..  to make  
the date ranges.

cond = Caboose::EZ::Condition.new  do
     intake_date <=> (params[:beg_intake_date]..params 
[:end_intake_date]) unless params[:beg_intake_date].nil?
     referral_date <=> [ params[:beg_referral_date]..params 
[:end_referral_date] ] unless params[:beg_referral_date].nil?
     discharge_date <=> [ params[:beg_discharge_date]..params 
[:end_discharge_date]  ] unless params[:beg_discharge_date].nil?
end

Then you can use  cond.to_sql in your copnditions like:

:conditions => cond.to_sql

So if all three dates are available in the params hash your  
cond.to_sql will look like this:

 >> p cond.to_sql
=> ["intake_date BETWEEN ? AND ? AND referral_date BETWEEN ? AND ?  
AND discharge_date BETWEEN ? AND ?", Sun Feb 19 14:02:44 PST 2006,  
Mon Feb 20 14:02:44 PST 2006, Sun Feb 19 14:02:44 PST 2006, Mon Feb  
20 14:02:44 PST 2006, Sun Feb 19 14:02:44 PST 2006, Mon Feb 20  
14:02:44 PST 2006]

If only some or one of the dates is present in params then it will do  
the right thing and either just put the one date range in there or  
use4 AND to join together as many date ranges as are present in the  
params.

Here is a link to my blog where I write up all the other ways to use  
my plugin:

http://brainspl.at/articles/2006/01/30/i-have-been-busy


Cheers-
-Ezra

On Feb 19, 2006, at 12:02 PM, Craig White wrote:
> I am trying to allow for AND type ''find'' but to allow for
simply a
> single set of find criteria.
>
> controller code...
>
> @vw_string = @vw_string1 = @vw_string2 = @vw_string3 = []
>
>       if params[:beg_intake_date] != "" then
>         @vw_string1 = ["intake_date between ? and ?",
>         params[:beg_intake_date], params[:end_intake_date] ]
>       end
>
>       if params[:beg_referral_date] != "" then
>         @vw_string2 = ["referral_date between ? and ?",
>         params[:beg_referral_date], params[:end_referral_date] ]
>       end
>
>       if params[:beg_discharge_date] != "" then
>         @vw_string3 = ["discharge_date between ? and ?",
>         params[:beg_discharge_date], params[:end_discharge_date] ]
>       end
>
> ->  @vw_string = [@vw_string1, @vw_string2, @vw_string3]
>
>       @placement_pages, @placements = paginate(
>         :placements,
>         :conditions => @vw_string,
>         :include => [:client, :case_manager, :facility],
>         :order_by => ''referral_date'',
>         :per_page => 14)
>
> The above setup gives me an error ''undefined method
''%" for []:Array
>
> Same thing if I set...
>
> @vw_string = @vw_string1, @vw_string2, @vw_string3
>
> and if I do it like this...
>
> @vw_string = [@vw_string1] [@vw_string2] [@vw_string3]
>
> I get can''t convert Array into Integer
>
> How can I get the @vw_string into something that allows for
''AND''
> conditions or singular conditions if only 1 criteria resulted from a
> search?
>
> Craig
>
> _______________________________________________
> Rails mailing list
> Rails@lists.rubyonrails.org
> http://lists.rubyonrails.org/mailman/listinfo/rails
>
-Ezra Zygmuntowicz
WebMaster
Yakima Herald-Republic Newspaper
ezra@yakima-herald.com
509-577-7732

Craig White

2006-Feb-19 22:19 UTC

head link

[Rails] building multiple find conditions

I think I just got a woodie...thanks - I am going to dive into this
later because I''ve got a client to please at the moment but it appears
to be a blessing of many magnitudes.

Thanks

Craig

On Sun, 2006-02-19 at 14:07 -0800, Ezra Zygmuntowicz
wrote:> Craig-
> 
> 	You can do this quite easily with my ez_where plugin, get it from  
> svn here:
> 
> http://opensvn.csie.org/ezra/rails/plugins/dev/ez_where/
> 
> 	And here is an example of doing what you want to do with it, I am  
> assuming that your model is called Placement. Note that in my plugin  
> the shorthand for a BETWEEN ? AND ? query is <=> the spaceship  
> operator ;-) Also note that I am using the range operator ..  to make  
> the date ranges.
> 
> cond = Caboose::EZ::Condition.new  do
>      intake_date <=> (params[:beg_intake_date]..params 
> [:end_intake_date]) unless params[:beg_intake_date].nil?
>      referral_date <=> [ params[:beg_referral_date]..params 
> [:end_referral_date] ] unless params[:beg_referral_date].nil?
>      discharge_date <=> [ params[:beg_discharge_date]..params 
> [:end_discharge_date]  ] unless params[:beg_discharge_date].nil?
> end
> 
> Then you can use  cond.to_sql in your copnditions like:
> 
> :conditions => cond.to_sql
> 
> So if all three dates are available in the params hash your  
> cond.to_sql will look like this:
> 
>  >> p cond.to_sql
> => ["intake_date BETWEEN ? AND ? AND referral_date BETWEEN ? AND ?
> AND discharge_date BETWEEN ? AND ?", Sun Feb 19 14:02:44 PST 2006,  
> Mon Feb 20 14:02:44 PST 2006, Sun Feb 19 14:02:44 PST 2006, Mon Feb  
> 20 14:02:44 PST 2006, Sun Feb 19 14:02:44 PST 2006, Mon Feb 20  
> 14:02:44 PST 2006]
> 
> If only some or one of the dates is present in params then it will do  
> the right thing and either just put the one date range in there or  
> use4 AND to join together as many date ranges as are present in the  
> params.
> 
> Here is a link to my blog where I write up all the other ways to use  
> my plugin:
> 
> http://brainspl.at/articles/2006/01/30/i-have-been-busy
> 
> 
> Cheers-
> -Ezra
> 
> On Feb 19, 2006, at 12:02 PM, Craig White wrote:
> 
> > I am trying to allow for AND type ''find'' but to
allow for simply a
> > single set of find criteria.
> >
> > controller code...
> >
> > @vw_string = @vw_string1 = @vw_string2 = @vw_string3 = []
> >
> >       if params[:beg_intake_date] != "" then
> >         @vw_string1 = ["intake_date between ? and ?",
> >         params[:beg_intake_date], params[:end_intake_date] ]
> >       end
> >
> >       if params[:beg_referral_date] != "" then
> >         @vw_string2 = ["referral_date between ? and ?",
> >         params[:beg_referral_date], params[:end_referral_date] ]
> >       end
> >
> >       if params[:beg_discharge_date] != "" then
> >         @vw_string3 = ["discharge_date between ? and ?",
> >         params[:beg_discharge_date], params[:end_discharge_date] ]
> >       end
> >
> > ->  @vw_string = [@vw_string1, @vw_string2, @vw_string3]
> >
> >       @placement_pages, @placements = paginate(
> >         :placements,
> >         :conditions => @vw_string,
> >         :include => [:client, :case_manager, :facility],
> >         :order_by => ''referral_date'',
> >         :per_page => 14)
> >
> > The above setup gives me an error ''undefined method
''%" for []:Array
> >
> > Same thing if I set...
> >
> > @vw_string = @vw_string1, @vw_string2, @vw_string3
> >
> > and if I do it like this...
> >
> > @vw_string = [@vw_string1] [@vw_string2] [@vw_string3]
> >
> > I get can''t convert Array into Integer
> >
> > How can I get the @vw_string into something that allows for
''AND''
> > conditions or singular conditions if only 1 criteria resulted from a
> > search?
> >
> > Craig
> >
> > _______________________________________________
> > Rails mailing list
> > Rails@lists.rubyonrails.org
> > http://lists.rubyonrails.org/mailman/listinfo/rails
> >
> 
> -Ezra Zygmuntowicz
> WebMaster
> Yakima Herald-Republic Newspaper
> ezra@yakima-herald.com
> 509-577-7732
> _______________________________________________
> Rails mailing list
> Rails@lists.rubyonrails.org
> http://lists.rubyonrails.org/mailman/listinfo/rails

Ezra Zygmuntowicz

2006-Feb-19 22:22 UTC

head link

[Rails] building multiple find conditions

Craig -

	There was  slight typo in my last email. The setup should be thus:

cond = Caboose::EZ::Condition.new  do
     intake_date <=> (params[:beg_intake_date]..params 
[:end_intake_date]) unless params[:beg_intake_date].nil?
     referral_date <=> ( params[:beg_referral_date]..params 
[:end_referral_date] ) unless params[:beg_referral_date].nil?
     discharge_date <=> ( params[:beg_discharge_date]..params 
[:end_discharge_date] ) unless params[:beg_discharge_date].nil?
end


Cheers-
-Ezra

On Feb 19, 2006, at 2:19 PM, Craig White wrote:
> I think I just got a woodie...thanks - I am going to dive into this
> later because I''ve got a client to please at the moment but it
appears
> to be a blessing of many magnitudes.
>
> Thanks
>
> Craig
>
> On Sun, 2006-02-19 at 14:07 -0800, Ezra Zygmuntowicz wrote:
>> Craig-
>>
>> 	You can do this quite easily with my ez_where plugin, get it from
>> svn here:
>>
>> http://opensvn.csie.org/ezra/rails/plugins/dev/ez_where/
>>
>> 	And here is an example of doing what you want to do with it, I am
>> assuming that your model is called Placement. Note that in my plugin
>> the shorthand for a BETWEEN ? AND ? query is <=> the spaceship
>> operator ;-) Also note that I am using the range operator ..  to make
>> the date ranges.
>>
>> cond = Caboose::EZ::Condition.new  do
>>      intake_date <=> (params[:beg_intake_date]..params
>> [:end_intake_date]) unless params[:beg_intake_date].nil?
>>      referral_date <=> [ params[:beg_referral_date]..params
>> [:end_referral_date] ] unless params[:beg_referral_date].nil?
>>      discharge_date <=> [ params[:beg_discharge_date]..params
>> [:end_discharge_date]  ] unless params[:beg_discharge_date].nil?
>> end
>>
>> Then you can use  cond.to_sql in your copnditions like:
>>
>> :conditions => cond.to_sql
>>
>> So if all three dates are available in the params hash your
>> cond.to_sql will look like this:
>>
>>>> p cond.to_sql
>> => ["intake_date BETWEEN ? AND ? AND referral_date BETWEEN ?
AND ?
>> AND discharge_date BETWEEN ? AND ?", Sun Feb 19 14:02:44 PST 2006,
>> Mon Feb 20 14:02:44 PST 2006, Sun Feb 19 14:02:44 PST 2006, Mon Feb
>> 20 14:02:44 PST 2006, Sun Feb 19 14:02:44 PST 2006, Mon Feb 20
>> 14:02:44 PST 2006]
>>
>> If only some or one of the dates is present in params then it will do
>> the right thing and either just put the one date range in there or
>> use4 AND to join together as many date ranges as are present in the
>> params.
>>
>> Here is a link to my blog where I write up all the other ways to use
>> my plugin:
>>
>> http://brainspl.at/articles/2006/01/30/i-have-been-busy
>>
>>
>> Cheers-
>> -Ezra
>>
>> On Feb 19, 2006, at 12:02 PM, Craig White wrote:
>>
>>> I am trying to allow for AND type ''find'' but to
allow for simply a
>>> single set of find criteria.
>>>
>>> controller code...
>>>
>>> @vw_string = @vw_string1 = @vw_string2 = @vw_string3 = []
>>>
>>>       if params[:beg_intake_date] != "" then
>>>         @vw_string1 = ["intake_date between ? and ?",
>>>         params[:beg_intake_date], params[:end_intake_date] ]
>>>       end
>>>
>>>       if params[:beg_referral_date] != "" then
>>>         @vw_string2 = ["referral_date between ? and ?",
>>>         params[:beg_referral_date], params[:end_referral_date] ]
>>>       end
>>>
>>>       if params[:beg_discharge_date] != "" then
>>>         @vw_string3 = ["discharge_date between ? and ?",
>>>         params[:beg_discharge_date], params[:end_discharge_date] ]
>>>       end
>>>
>>> ->  @vw_string = [@vw_string1, @vw_string2, @vw_string3]
>>>
>>>       @placement_pages, @placements = paginate(
>>>         :placements,
>>>         :conditions => @vw_string,
>>>         :include => [:client, :case_manager, :facility],
>>>         :order_by => ''referral_date'',
>>>         :per_page => 14)
>>>
>>> The above setup gives me an error ''undefined method
''%" for []:Array
>>>
>>> Same thing if I set...
>>>
>>> @vw_string = @vw_string1, @vw_string2, @vw_string3
>>>
>>> and if I do it like this...
>>>
>>> @vw_string = [@vw_string1] [@vw_string2] [@vw_string3]
>>>
>>> I get can''t convert Array into Integer
>>>
>>> How can I get the @vw_string into something that allows for
''AND''
>>> conditions or singular conditions if only 1 criteria resulted from
a
>>> search?
>>>
>>> Craig
>>>
>>> _______________________________________________
>>> Rails mailing list
>>> Rails@lists.rubyonrails.org
>>> http://lists.rubyonrails.org/mailman/listinfo/rails
>>>
>>
>> -Ezra Zygmuntowicz
>> WebMaster
>> Yakima Herald-Republic Newspaper
>> ezra@yakima-herald.com
>> 509-577-7732
>> _______________________________________________
>> Rails mailing list
>> Rails@lists.rubyonrails.org
>> http://lists.rubyonrails.org/mailman/listinfo/rails
>
> _______________________________________________
> Rails mailing list
> Rails@lists.rubyonrails.org
> http://lists.rubyonrails.org/mailman/listinfo/rails
>
-Ezra Zygmuntowicz
WebMaster
Yakima Herald-Republic Newspaper
ezra@yakima-herald.com
509-577-7732

Arch Stanton

2006-Apr-14 05:21 UTC

head link

[Rails] Re: building multiple find conditions

I want to search for two conditions in one find.  Is there no way to do 
this without the plugin?

example:

@posts = Post.find(:all, :conditions => [ "published = 1 AND author = 
?", author])

Is that legal/supported?


-- 
Posted via http://www.ruby-forum.com/.

Daniel Higginbotham

2006-Apr-14 06:22 UTC

head link

[Rails] Re: building multiple find conditions

That looks fine... but wouldn''t it be easier to just try it out first?
;)

-----Original Message-----
From: rails-bounces@lists.rubyonrails.org
[mailto:rails-bounces@lists.rubyonrails.org] On Behalf Of Arch Stanton
Sent: Thursday, April 13, 2006 7:22 PM
To: rails@lists.rubyonrails.org
Subject: [Rails] Re: building multiple find conditions

I want to search for two conditions in one find.  Is there no way to do 
this without the plugin?

example:

@posts = Post.find(:all, :conditions => [ "published = 1 AND author = 
?", author])

Is that legal/supported?


-- 
Posted via http://www.ruby-forum.com/.
_______________________________________________
Rails mailing list
Rails@lists.rubyonrails.org
http://lists.rubyonrails.org/mailman/listinfo/rails

Ezra Zygmuntowicz

2006-Apr-14 14:42 UTC

head link

[Rails] Re: building multiple find conditions

On Apr 13, 2006, at 10:21 PM, Arch Stanton wrote:
> I want to search for two conditions in one find.  Is there no way  
> to do
> this without the plugin?
>
> example:
>
> @posts = Post.find(:all, :conditions => [ "published = 1 AND author
> ?", author])
>
> Is that legal/supported?
>
>
> -- 
> Posted via http://www.ruby-forum.com/.
> _______________________________________________
> Rails mailing list
> Rails@lists.rubyonrails.org
> http://lists.rubyonrails.org/mailman/listinfo/rails

@posts = Post.find_with_block(:all) do
       published == 1
       author == author
   end


That should do it for you.

Cheers-
-Ezra

Guest

2006-Apr-14 15:59 UTC

head link

[Rails] Re: Re: building multiple find conditions

Ezra Zygmuntowicz wrote:> On Apr 13, 2006, at 10:21 PM, Arch Stanton wrote:
> 
>>
>>
>> -- 
>> Posted via http://www.ruby-forum.com/.
>> _______________________________________________
>> Rails mailing list
>> Rails@lists.rubyonrails.org
>> http://lists.rubyonrails.org/mailman/listinfo/rails
> 
> 
> @posts = Post.find_with_block(:all) do
>        published == 1
>        author == author
>    end
> 
> 
> That should do it for you.
> 
> Cheers-
> -Ezra

I don''t see that method in the api.  Is the documentation
(http://api.rubyonrails.com/) out of date?

-- 
Posted via http://www.ruby-forum.com/.

Ezra Zygmuntowicz

2006-Apr-14 16:49 UTC

head link

[Rails] Re: Re: building multiple find conditions

On Apr 14, 2006, at 8:59 AM, Guest wrote:
> Ezra Zygmuntowicz wrote:
>> On Apr 13, 2006, at 10:21 PM, Arch Stanton wrote:
>>
>>>
>>>
>>> --  
>>> Posted via http://www.ruby-forum.com/.
>>> _______________________________________________
>>> Rails mailing list
>>> Rails@lists.rubyonrails.org
>>> http://lists.rubyonrails.org/mailman/listinfo/rails
>>
>>
>> @posts = Post.find_with_block(:all) do
>>        published == 1
>>        author == author
>>    end
>>
>>
>> That should do it for you.
>>
>> Cheers-
>> -Ezra
>
>
> I don''t see that method in the api.  Is the documentation
> (http://api.rubyonrails.com/) out of date?
>
Guest-

	No thats not part of core rails. It''s my plugin called ez_where. It  
adds a ton of functionality to create dynamic :conditions on your AR  
find''s. You can read more about it here:

	http://brainspl.at/articles/2006/01/30/i-have-been-busy

Cheers-
-Ezra

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