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<div class="moz-cite-prefix">On 2018-02-17 11:23, fhsxfhsx wrote:<br>
</div>
<blockquote type="cite"
cite="mid:21d694a9.b30.161a493d83e.Coremail.fhsxfhsx@126.com"><span
style="font-family:monospace">[<br>
{<br>
'id': goods.id,<br>
'name': goods.name,<br>
'category': gc.name,<br>
'category_type': gc.type,<br>
}<br>
for goods_id in goods_id_list<br>
for goods is Goods.get_by_id(goods_id)<br>
for gc is GoodsCategory.get_by_id(goods.category_id)<br>
]</span></blockquote>
<br>
in the short term, it seems for...in [...] is good enough:<br>
<br>
<span style="font-family:monospace">> [<br>
</span><span style="font-family:monospace"><span
style="font-family:monospace">> </span> {<br>
</span><span style="font-family:monospace"><span
style="font-family:monospace">> </span> 'id':
goods.id,<br>
</span><span style="font-family:monospace"><span
style="font-family:monospace">> </span> 'name':
goods.name,<br>
</span><span style="font-family:monospace"><span
style="font-family:monospace">> </span> 'category':
gc.name,<br>
</span><span style="font-family:monospace"><span
style="font-family:monospace">> </span>
'category_type': gc.type,<br>
</span><span style="font-family:monospace"><span
style="font-family:monospace">> </span> }<br>
</span><span style="font-family:monospace"><span
style="font-family:monospace">> </span> for goods_id in
goods_id_list<br>
</span><span style="font-family:monospace"><span
style="font-family:monospace">> </span> for goods in
[Goods.get_by_id(goods_id)]<br>
</span><span style="font-family:monospace"><span
style="font-family:monospace">> </span> for gc in
[GoodsCategory.get_by_id(goods.category_id)]<br>
</span><span style="font-family:monospace"><span
style="font-family:monospace">> </span>]<br>
</span><br>
I personally would like to see with...as... syntax allowed in list
comprehensions, despite `with` being limited to context managers to
date.<br>
<br>
<span style="font-family:monospace">> [<br>
</span><span style="font-family:monospace"><span
style="font-family:monospace">> </span> {<br>
</span><span style="font-family:monospace"><span
style="font-family:monospace">> </span> 'id':
goods.id,<br>
</span><span style="font-family:monospace"><span
style="font-family:monospace">> </span> 'name':
goods.name,<br>
</span><span style="font-family:monospace"><span
style="font-family:monospace">> </span> 'category':
gc.name,<br>
</span><span style="font-family:monospace"><span
style="font-family:monospace">> </span>
'category_type': gc.type,<br>
</span><span style="font-family:monospace"><span
style="font-family:monospace">> </span> }<br>
</span><span style="font-family:monospace"><span
style="font-family:monospace">> </span> for goods_id in
goods_id_list<br>
</span><span style="font-family:monospace"><span
style="font-family:monospace">> </span> with
Goods.get_by_id(goods_id) as goods<br>
</span><span style="font-family:monospace"><span
style="font-family:monospace">> </span> with
GoodsCategory.get_by_id(goods.category_id) as gc<br>
</span><span style="font-family:monospace"><span
style="font-family:monospace">> </span>]<br>
</span><br>
<span style="font-family:monospace"></span>..,or maybe `let` reads
easier?<br>
<br>
<span style="font-family:monospace">> [<br>
</span><span style="font-family:monospace"><span
style="font-family:monospace">> </span> {<br>
</span><span style="font-family:monospace"><span
style="font-family:monospace">> </span> 'id':
goods.id,<br>
</span><span style="font-family:monospace"><span
style="font-family:monospace">> </span> 'name':
goods.name,<br>
</span><span style="font-family:monospace"><span
style="font-family:monospace">> </span> 'category':
gc.name,<br>
</span><span style="font-family:monospace"><span
style="font-family:monospace">> </span>
'category_type': gc.type,<br>
</span><span style="font-family:monospace"><span
style="font-family:monospace">> </span> }<br>
</span><span style="font-family:monospace"><span
style="font-family:monospace">> </span> for goods_id in
goods_id_list<br>
</span><span style="font-family:monospace"><span
style="font-family:monospace">> </span> let goods =
Goods.get_by_id(goods_id)<br>
</span><span style="font-family:monospace"><span
style="font-family:monospace">> </span> let gc =
GoodsCategory.get_by_id(goods.category_id)<br>
</span><span style="font-family:monospace"><span
style="font-family:monospace">> </span>]<br>
<br>
<br>
</span><br>
<span style="font-family:monospace"></span><br>
<span style="font-family:monospace"></span>
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