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require_relative "spec_helper"
describe Sequel::Model, ".finder" do
before do
@h = {:id=>1}
@db = Sequel.mock(:fetch=>@h)
@c = Class.new(Sequel::Model(@db[:items]))
@c.instance_eval do
def foo(a, b)
where(:bar=>a).order(b)
end
def foo_bar(a, b=1)
where(:bar=>a).order(b)
end
end
@c.plugin :finder
@o = @c.load(@h)
@db.sqls
end
it "should create a method that calls the method given and returns the first instance" do
@c.finder :foo
@c.first_foo(1, 2).must_equal @o
@c.first_foo(3, 4).must_equal @o
@db.sqls.must_equal ["SELECT * FROM items WHERE (bar = 1) ORDER BY 2 LIMIT 1", "SELECT * FROM items WHERE (bar = 3) ORDER BY 4 LIMIT 1"]
end
it "should create a method that calls the method given and returns the first instance when method has negative arity and only required arguments are given" do
@c.finder :foo_bar
@c.first_foo_bar(2).must_equal @o
@db.sqls.must_equal ["SELECT * FROM items WHERE (bar = 2) ORDER BY 1 LIMIT 1"]
end
it "should not allow calling a finder and providing values for the optional arguments" do
@c.finder :foo_bar
proc{@c.first_foo_bar(3, 4)}.must_raise Sequel::Error
@db.sqls.must_equal []
end
it "should work correctly when subclassing" do
@c.finder(:foo)
@sc = Class.new(@c)
@sc.set_dataset :foos
@db.sqls
@sc.first_foo(1, 2).must_equal @sc.load(@h)
@sc.first_foo(3, 4).must_equal @sc.load(@h)
@db.sqls.must_equal ["SELECT * FROM foos WHERE (bar = 1) ORDER BY 2 LIMIT 1", "SELECT * FROM foos WHERE (bar = 3) ORDER BY 4 LIMIT 1"]
end
it "should work correctly when dataset is modified" do
@c.finder(:foo)
@c.first_foo(1, 2).must_equal @o
@c.set_dataset :foos
@c.first_foo(3, 4).must_equal @o
@db.sqls.must_equal ["SELECT * FROM items WHERE (bar = 1) ORDER BY 2 LIMIT 1", "SELECT * FROM foos LIMIT 0", "SELECT * FROM foos WHERE (bar = 3) ORDER BY 4 LIMIT 1"]
end
it "should create a method based on the given block if no method symbol provided" do
@c.finder(:name=>:first_foo){|pl, ds| ds.where(pl.arg).limit(1)}
@c.first_foo(:id=>1).must_equal @o
@db.sqls.must_equal ["SELECT * FROM items WHERE (id = 1) LIMIT 1"]
end
it "should raise an error if both a block and method symbol given" do
proc{@c.finder(:foo, :name=>:first_foo){|pl, ds| ds.where(pl.arg)}}.must_raise(Sequel::Error)
end
it "should raise an error if two option hashes are provided" do
proc{@c.finder({:name2=>:foo}, :name=>:first_foo){|pl, ds| ds.where(pl.arg)}}.must_raise(Sequel::Error)
end
it "should raise an error if block is provide without a name" do
proc{@c.finder{|pl, ds| ds.where(pl.arg)}}.must_raise(Sequel::Error)
end
it "should raise an error if invalid :type option is used" do
proc{@c.finder(:name=>:foo_foo, :type=>:foo){|pl, ds| ds.where(pl.arg)}}.must_raise(Sequel::Error)
end
it "should support :type option" do
@c.finder :foo, :type=>:all
@c.finder :foo, :type=>:each
@c.finder :foo, :type=>:get
a = []
@c.all_foo(1, 2){|r| a << r}.must_equal [@o]
a.must_equal [@o]
a = []
@c.each_foo(3, 4){|r| a << r}
a.must_equal [@o]
@c.get_foo(5, 6).must_equal 1
@db.sqls.must_equal ["SELECT * FROM items WHERE (bar = 1) ORDER BY 2", "SELECT * FROM items WHERE (bar = 3) ORDER BY 4", "SELECT * FROM items WHERE (bar = 5) ORDER BY 6 LIMIT 1"]
end
it "should support :name option" do
@c.finder :foo, :name=>:find_foo
@c.find_foo(1, 2).must_equal @o
@c.find_foo(3, 4).must_equal @o
@db.sqls.must_equal ["SELECT * FROM items WHERE (bar = 1) ORDER BY 2 LIMIT 1", "SELECT * FROM items WHERE (bar = 3) ORDER BY 4 LIMIT 1"]
end
it "should support :arity option" do
def @c.foobar(*b)
ds = dataset
b.each_with_index do |a, i|
ds = ds.where(i=>a)
end
ds
end
@c.finder :foobar, :arity=>1, :name=>:find_foobar_1
@c.finder :foobar, :arity=>2, :name=>:find_foobar_2
@c.find_foobar_1(:a)
@c.find_foobar_2(:a, :b)
@db.sqls.must_equal ["SELECT * FROM items WHERE (0 = a) LIMIT 1", "SELECT * FROM items WHERE ((0 = a) AND (1 = b)) LIMIT 1"]
end
it "should support :mod option" do
m = Module.new
@c.finder :foo, :mod=>m
proc{@c.first_foo}.must_raise NoMethodError
@c.extend m
@c.first_foo(1, 2).must_equal @o
@c.first_foo(3, 4).must_equal @o
@db.sqls.must_equal ["SELECT * FROM items WHERE (bar = 1) ORDER BY 2 LIMIT 1", "SELECT * FROM items WHERE (bar = 3) ORDER BY 4 LIMIT 1"]
end
it "should raise error when calling with the wrong arity" do
@c.finder :foo
proc{@c.first_foo(1)}.must_raise Sequel::Error
proc{@c.first_foo(1,2,3)}.must_raise Sequel::Error
end
end
describe Sequel::Model, ".prepared_finder" do
before do
@h = {:id=>1}
@db = Sequel.mock(:fetch=>@h)
@db.extend_datasets do
def select_sql
sql = super
sql << ' -- prepared' if is_a?(Sequel::Dataset::PreparedStatementMethods) && !opts[:sql]
sql
end
end
@c = Class.new(Sequel::Model(@db[:items]))
@c.instance_eval do
def foo(a, b)
where(:bar=>a).order(b)
end
end
@c.plugin :finder
@o = @c.load(@h)
@db.sqls
end
it "should create a method that calls the method given and returns the first instance" do
@c.prepared_finder :foo
@c.first_foo(1, 2).must_equal @o
@c.first_foo(3, 4).must_equal @o
@db.sqls.must_equal ["SELECT * FROM items WHERE (bar = 1) ORDER BY 2 LIMIT 1 -- prepared", "SELECT * FROM items WHERE (bar = 3) ORDER BY 4 LIMIT 1 -- prepared"]
end
it "should work correctly when subclassing" do
@c.prepared_finder(:foo)
@sc = Class.new(@c)
@sc.set_dataset :foos
@db.sqls
@sc.first_foo(1, 2).must_equal @sc.load(@h)
@sc.first_foo(3, 4).must_equal @sc.load(@h)
@db.sqls.must_equal ["SELECT * FROM foos WHERE (bar = 1) ORDER BY 2 LIMIT 1 -- prepared", "SELECT * FROM foos WHERE (bar = 3) ORDER BY 4 LIMIT 1 -- prepared"]
end
it "should work correctly when dataset is modified" do
@c.prepared_finder(:foo)
@c.first_foo(1, 2).must_equal @o
@c.set_dataset :foos
@c.first_foo(3, 4).must_equal @o
@db.sqls.must_equal ["SELECT * FROM items WHERE (bar = 1) ORDER BY 2 LIMIT 1 -- prepared", "SELECT * FROM foos LIMIT 0", "SELECT * FROM foos WHERE (bar = 3) ORDER BY 4 LIMIT 1 -- prepared"]
end
it "should create a method based on the given block if no method symbol provided" do
@c.prepared_finder(:name=>:first_foo){|a1| where(:id=>a1).limit(1)}
@c.first_foo(1).must_equal @o
@db.sqls.must_equal ["SELECT * FROM items WHERE (id = 1) LIMIT 1 -- prepared"]
end
it "should raise an error if both a block and method symbol given" do
proc{@c.prepared_finder(:foo, :name=>:first_foo){|pl, ds| ds.where(pl.arg)}}.must_raise(Sequel::Error)
end
it "should raise an error if two option hashes are provided" do
proc{@c.prepared_finder({:name2=>:foo}, :name=>:first_foo){|pl, ds| ds.where(pl.arg)}}.must_raise(Sequel::Error)
end
it "should support :type option" do
@c.prepared_finder :foo, :type=>:all
@c.prepared_finder :foo, :type=>:each
a = []
@c.all_foo(1, 2){|r| a << r}.must_equal [@o]
a.must_equal [@o]
a = []
@c.each_foo(3, 4){|r| a << r}
a.must_equal [@o]
@db.sqls.must_equal ["SELECT * FROM items WHERE (bar = 1) ORDER BY 2 -- prepared", "SELECT * FROM items WHERE (bar = 3) ORDER BY 4 -- prepared"]
end
it "should support :name option" do
@c.prepared_finder :foo, :name=>:find_foo
@c.find_foo(1, 2).must_equal @o
@c.find_foo(3, 4).must_equal @o
@db.sqls.must_equal ["SELECT * FROM items WHERE (bar = 1) ORDER BY 2 LIMIT 1 -- prepared", "SELECT * FROM items WHERE (bar = 3) ORDER BY 4 LIMIT 1 -- prepared"]
end
it "should support :arity option" do
def @c.foobar(*b)
ds = dataset
b.each_with_index do |a, i|
ds = ds.where(i=>a)
end
ds
end
@c.prepared_finder :foobar, :arity=>1, :name=>:find_foobar_1
@c.prepared_finder :foobar, :arity=>2, :name=>:find_foobar_2
@c.find_foobar_1(:a)
@c.find_foobar_2(:a, :b)
@db.sqls.must_equal ["SELECT * FROM items WHERE (0 = a) LIMIT 1 -- prepared", "SELECT * FROM items WHERE ((0 = a) AND (1 = b)) LIMIT 1 -- prepared"]
end
it "should support :mod option" do
m = Module.new
@c.prepared_finder :foo, :mod=>m
proc{@c.first_foo}.must_raise NoMethodError
@c.extend m
@c.first_foo(1, 2).must_equal @o
@c.first_foo(3, 4).must_equal @o
@db.sqls.must_equal ["SELECT * FROM items WHERE (bar = 1) ORDER BY 2 LIMIT 1 -- prepared", "SELECT * FROM items WHERE (bar = 3) ORDER BY 4 LIMIT 1 -- prepared"]
end
it "should handle models with names" do
def @c.name; 'foobar' end
@c.prepared_finder :foo
@c.first_foo(1, 2).must_equal @o
@db.sqls.must_equal ["SELECT * FROM items WHERE (bar = 1) ORDER BY 2 LIMIT 1 -- prepared"]
end
end
describe "Sequel::Model.freeze" do
it "should freeze the model class and not allow any changes" do
model = Class.new(Sequel::Model(:items))
model.plugin :finder
model.finder(:name=>:f_by_name){|pl, ds| ds.where(:name=>pl.arg).limit(1)}
model.freeze
model.f_by_name('a').must_equal model.call(:id=>1, :x=>1)
proc{model.finder(:name=>:first_by_name){|pl, ds| ds.where(:name=>pl.arg).limit(1)}}.must_raise RuntimeError, TypeError
end
it "should freeze a model class without a dataset without breaking" do
model = Class.new(Sequel::Model)
model.plugin :finder
model.freeze
proc{model.finder(:name=>:first_by_name){|pl, ds| ds.where(:name=>pl.arg).limit(1)}}.must_raise RuntimeError, TypeError
end
it "should allow subclasses of frozen model classes to work correctly" do
model = Class.new(Sequel::Model(:items))
model.plugin :finder
model.freeze
model = Class.new(model)
model.dataset = :items2
model.dataset_module{}
model.plugin Module.new
model.finder(:name=>:first_by_name){|pl, ds| ds.where(:name=>pl.arg).limit(1)}
model.first_by_name('a').values.must_equal(:id=>1, :x=>1)
end
end
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