rails string相关转换

变量的读取

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1	instance_variable_get("@name") #返回@name的值

method相关

string到method名

send

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1	book.send('name')<br>book.send("name=","test")   ### book.name => test

string单数化singularize

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1	"posts".singularize #=> "post"

table和class相关

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# 将表格名转成class名 # classify "blog_pictures".classify #=> 'BlogPicture'   # class名转table name "BlogPicture".tableize #=> "blog_pictures"   # 将class名转class ”post“.constantize #=> Post "posts".classify.constantize.find_by_name("test")