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10<\/a><\/strong><\/pre><\/td>\n  
class<\/span> <\/span>ChangeProductsPrice<\/span> <\/span><<\/span> <\/span>ActiveRecord<\/span>::<\/span>Migration<\/span>[<\/span>5.0<\/span>]<\/span>
<\/span>  <\/span>def<\/span> <\/span>change<\/span>
<\/span>    <\/span>reversible<\/span> <\/span>do<\/span> <\/span>|<\/span>dir<\/span>|<\/span>
<\/span>      <\/span>change_table<\/span> <\/span>:products<\/span> <\/span>do<\/span> <\/span>|<\/span>t<\/span>|<\/span>
<\/span>        <\/span>dir<\/span>.<\/span>up<\/span>   <\/span>{<\/span> <\/span>t<\/span>.<\/span>change<\/span> <\/span>:price<\/span>,<\/span> <\/span>:string<\/span> <\/span>}<\/span>
<\/span>        <\/span>dir<\/span>.<\/span>down<\/span> <\/span>{<\/span> <\/span>t<\/span>.<\/span>change<\/span> <\/span>:price<\/span>,<\/span> <\/span>:integer<\/span> <\/span>}<\/span>
<\/span>      <\/span>end<\/span>
<\/span>    <\/span>end<\/span>
<\/span>  <\/span>end<\/span>
<\/span>end<\/span><\/pre><\/td>\n<\/tr><\/table>\n\n");