post table is the article table, the primary key is id
tag table is the tag table, the primary key is id
post_tag is the intermediate mapping table, and the field is post_id,tag_id
now I want to select tag 1 to find out that all the
tags and articles under tag 1 are many-to-many
I set up a controller in the tag
the data I take out in this way is particularly troublesome to display on the page. Is there any better idea?
finally figured it out.
rewrite the model code
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