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 ƙoƙarin ƙara 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 ƙididdiga ta ƙira
Tunanin fihirisar ƙira wani fili ne a cikin ƙirar da ke adana keɓantaccen mai gano samfurin misali. Django yana amfani da wannan filin don keɓance misali na musamman lokacin da ya shiga rumbun adana bayanai.
Zaɓuɓɓukan Meta Model
Akwai 'yan zaɓuɓɓukan meta waɗanda zaku iya amfani da su a cikin Django don sarrafa yadda ƙirar ke aiki.
Mafi yawan zaɓin meta shine filin default_ na ƙirar, wanda ke ƙayyadadden filin da ya kamata a yi amfani da shi azaman ƙimar tsoho na ƙirar lokacin da aka ƙirƙiri sabon abu. Wannan na iya zama da amfani idan kana so ka ƙididdige tsohuwar ƙima don filayen da ba su da takamaiman ƙima, ko kuma idan kana son ƙididdige ƙimar tsoho don filayen da bayanan ke cikawa ta atomatik.
Wani zaɓi na meta shine serializer, wanda ke ƙayyade 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.
