Babu alamar meta django.
-admin I am trying to add an index to my Django model. I have tried using the <code>db_index=True</code> and <code>index_together</code> fields, but they don't seem to work. I have also tried using the <code>Meta</code> class, but it doesn't seem to work either. <blockquote> <p><strong><em><a href="https://docs.djangoproject.com/en/dev/ref/models/options/#indexes" rel="nofollow noreferrer">https://docs.djangoproject.com/en/dev/ref/models/options/#indexes</a></em></strong></p> <p><strong><em><a href="https://docs.djangoproject.com/en/dev/ref/models/" rel="nofollow noreferrer">https://docs.djangoproject.com/en/dev//ref//models//options/#db-indexes</a></em></strong></p> <p><strong><em><a href="https://stackoverflow.com/?q=add+an+index+in+Django">add an index in Django</a></em></strong></p> <p><strong><em>(and many more)</em></strong>. </p> </blockquote>
Lambar da ke sama tana ฦoฦarin ฦara fihirisa zuwa samfurin Django. The db_index=True da kuma index_together ana amfani da filayen, amma da alama ba sa aiki. The Meta Aji kuma ana amfani da shi, amma kuma da alama baya aiki.
Alamar ฦididdiga ta ฦira
Tunanin fihirisar ฦira wani fili ne a cikin ฦirar da ke adana keษantaccen mai gano samfurin misali. Django yana amfani da wannan filin don keษance misali na musamman lokacin da ya shiga rumbun adana bayanai.
Zaษuษษukan Meta Model
Akwai 'yan zaษuษษukan meta waษanda zaku iya amfani da su a cikin Django don sarrafa yadda ฦirar ke aiki.
Mafi yawan zaษin meta shine filin default_ na ฦirar, wanda ke ฦayyadadden filin da ya kamata a yi amfani da shi azaman ฦimar tsoho na ฦirar lokacin da aka ฦirฦiri sabon abu. Wannan na iya zama da amfani idan kana so ka ฦididdige tsohuwar ฦima don filayen da ba su da takamaiman ฦima, ko kuma idan kana son ฦididdige ฦimar tsoho don filayen da bayanan ke cikawa ta atomatik.
Wani zaษi na meta shine serializer, wanda ke ฦayyade wanne serializer yakamata a yi amfani da shi lokacin adana abubuwa zuwa bayanan bayanai. Wannan na iya zama da amfani idan kuna son amfani da serializer daban fiye da abin da Django ke bayarwa ta atomatik.
