{"title":"Feidhmeanna bunachar sonraí sonracha PostgreSQL","version":"5.2","locale":"ga","docname":"ref/contrib/postgres/functions","url":"/ga/5.2/ref/contrib/postgres/functions/","canonical":"https://djangodocs.dev/ga/5.2/ref/contrib/postgres/functions/","summary":"Tá na feidhmeanna seo go léir ar fáil ón modúl django.contrib.postgres.functions . Randamuuid Link to this heading # class RandomUUID Link to this definition #…","html":"

Feidhmeanna bunachar sonraí sonracha PostgreSQLLink to this heading#

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Tá na feidhmeanna seo go léir ar fáil ón modúl django.contrib.postgres.functions.

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RandamuuidLink to this heading#

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\nclass RandomUUIDLink to this definition#
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Tugann leagan 4 UUID ar ais.

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Sampla úsáide:

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Python console
>>> from django.contrib.postgres.functions import RandomUUID\n>>> Article.objects.update(uuid=RandomUUID())\n
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``Idirghníomhaíochtaí Anois ``Link to this heading#

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\nclass TransactionNowLink to this definition#
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Tugann sé an dáta agus an t-am ar an bhfreastalaí bunachar sonraí a thosaigh an t-idirbheart reatha. Mura bhfuil tú i idirbheart, cuirfidh sé dáta agus am an ráiteas reatha ar ais. Is comhlánú é seo la:class: Django.db.Models.Functions.Now, a thugann dáta agus am an ráiteas reatha ar ais.

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Tabhair faoi deara nach gcuireann ach an glao is seachtrach to:func: ~django.db.transaction.atomic () `idirbheart ar bun agus dá bhrí sin socraíonn sé an t-am a fhillfidh ``TransactionNow () `; cruthaíonn glaonna neadaithe pointí sábhála nach ndéanann difear don am idirbheart.

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Sampla úsáide:

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Python console
>>> from django.contrib.postgres.functions import TransactionNow\n>>> Article.objects.filter(published__lte=TransactionNow())\n<QuerySet [<Article: How to Django>]>\n
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