lectures: 07-sql draft v2
This commit is contained in:
Ilya Sinelnikov
parent
f4581660c4
commit
dbab50ee51
26 changed files with 489 additions and 179 deletions
6
go.mod
6
go.mod
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@ -10,10 +10,12 @@ require (
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github.com/gorilla/handlers v1.4.2
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github.com/gorilla/mux v1.7.4
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github.com/gorilla/websocket v1.4.2
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github.com/jackc/pgx/v4 v4.6.0
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github.com/jmoiron/sqlx v1.2.0
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github.com/spf13/cobra v0.0.5
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github.com/stretchr/testify v1.4.0
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github.com/stretchr/testify v1.5.1
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go.uber.org/goleak v1.0.0
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golang.org/x/net v0.0.0-20190628185345-da137c7871d7
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golang.org/x/net v0.0.0-20190813141303-74dc4d7220e7
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golang.org/x/perf v0.0.0-20191209155426-36b577b0eb03
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golang.org/x/sync v0.0.0-20190423024810-112230192c58
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golang.org/x/tools v0.0.0-20200125223703-d33eef8e6825
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98
go.sum
98
go.sum
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@ -4,17 +4,23 @@ github.com/GoogleCloudPlatform/cloudsql-proxy v0.0.0-20190129172621-c8b1d7a94ddf
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github.com/aclements/go-gg v0.0.0-20170118225347-6dbb4e4fefb0/go.mod h1:55qNq4vcpkIuHowELi5C8e+1yUHtoLoOUR9QU5j7Tes=
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github.com/aclements/go-moremath v0.0.0-20161014184102-0ff62e0875ff/go.mod h1:idZL3yvz4kzx1dsBOAC+oYv6L92P1oFEhUXUB1A/lwQ=
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github.com/armon/consul-api v0.0.0-20180202201655-eb2c6b5be1b6/go.mod h1:grANhF5doyWs3UAsr3K4I6qtAmlQcZDesFNEHPZAzj8=
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github.com/cockroachdb/apd v1.1.0/go.mod h1:8Sl8LxpKi29FqWXR16WEFZRNSz3SoPzUzeMeY4+DwBQ=
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github.com/coreos/etcd v3.3.10+incompatible/go.mod h1:uF7uidLiAD3TWHmW31ZFd/JWoc32PjwdhPthX9715RE=
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github.com/coreos/go-etcd v2.0.0+incompatible/go.mod h1:Jez6KQU2B/sWsbdaef3ED8NzMklzPG4d5KIOhIy30Tk=
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github.com/coreos/go-semver v0.2.0/go.mod h1:nnelYz7RCh+5ahJtPPxZlU+153eP4D4r3EedlOD2RNk=
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github.com/coreos/go-systemd v0.0.0-20190321100706-95778dfbb74e/go.mod h1:F5haX7vjVVG0kc13fIWeqUViNPyEJxv/OmvnBo0Yme4=
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github.com/coreos/go-systemd v0.0.0-20190719114852-fd7a80b32e1f/go.mod h1:F5haX7vjVVG0kc13fIWeqUViNPyEJxv/OmvnBo0Yme4=
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github.com/cpuguy83/go-md2man v1.0.10/go.mod h1:SmD6nW6nTyfqj6ABTjUi3V3JVMnlJmwcJI5acqYI6dE=
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github.com/creack/pty v1.1.7/go.mod h1:lj5s0c3V2DBrqTV7llrYr5NG6My20zk30Fl46Y7DoTY=
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github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
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github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
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github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
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github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMoQvtojpjFo=
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github.com/go-resty/resty/v2 v2.1.0 h1:Z6IefCpUMfnvItVJaJXWv/pMiiD11So35QgwEELsldE=
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github.com/go-resty/resty/v2 v2.1.0/go.mod h1:dZGr0i9PLlaaTD4H/hoZIDjQ+r6xq8mgbRzHZf7f2J8=
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github.com/go-sql-driver/mysql v1.4.0/go.mod h1:zAC/RDZ24gD3HViQzih4MyKcchzm+sOG5ZlKdlhCg5w=
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github.com/go-sql-driver/mysql v1.4.1/go.mod h1:zAC/RDZ24gD3HViQzih4MyKcchzm+sOG5ZlKdlhCg5w=
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github.com/go-stack/stack v1.8.0/go.mod h1:v0f6uXyyMGvRgIKkXu+yp6POWl0qKG85gN/melR3HDY=
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github.com/gofrs/uuid v3.2.0+incompatible h1:y12jRkkFxsd7GpqdSZ+/KCs/fJbqpEXSGd4+jfEaewE=
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github.com/gofrs/uuid v3.2.0+incompatible/go.mod h1:b2aQJv3Z4Fp6yNu3cdSllBxTCLRxnplIgP/c0N/04lM=
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github.com/golang/mock v1.4.1 h1:ocYkMQY5RrXTYgXl7ICpV0IXwlEQGwKIsery4gyXa1U=
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@ -37,19 +43,82 @@ github.com/gorilla/websocket v1.4.2/go.mod h1:YR8l580nyteQvAITg2hZ9XVh4b55+EU/ad
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github.com/hashicorp/hcl v1.0.0/go.mod h1:E5yfLk+7swimpb2L/Alb/PJmXilQ/rhwaUYs4T20WEQ=
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github.com/inconshreveable/mousetrap v1.0.0 h1:Z8tu5sraLXCXIcARxBp/8cbvlwVa7Z1NHg9XEKhtSvM=
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github.com/inconshreveable/mousetrap v1.0.0/go.mod h1:PxqpIevigyE2G7u3NXJIT2ANytuPF1OarO4DADm73n8=
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github.com/jackc/chunkreader v1.0.0 h1:4s39bBR8ByfqH+DKm8rQA3E1LHZWB9XWcrz8fqaZbe0=
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github.com/jackc/chunkreader v1.0.0/go.mod h1:RT6O25fNZIuasFJRyZ4R/Y2BbhasbmZXF9QQ7T3kePo=
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github.com/jackc/chunkreader/v2 v2.0.0/go.mod h1:odVSm741yZoC3dpHEUXIqA9tQRhFrgOHwnPIn9lDKlk=
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github.com/jackc/chunkreader/v2 v2.0.1 h1:i+RDz65UE+mmpjTfyz0MoVTnzeYxroil2G82ki7MGG8=
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github.com/jackc/chunkreader/v2 v2.0.1/go.mod h1:odVSm741yZoC3dpHEUXIqA9tQRhFrgOHwnPIn9lDKlk=
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github.com/jackc/pgconn v0.0.0-20190420214824-7e0022ef6ba3/go.mod h1:jkELnwuX+w9qN5YIfX0fl88Ehu4XC3keFuOJJk9pcnA=
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github.com/jackc/pgconn v0.0.0-20190824142844-760dd75542eb/go.mod h1:lLjNuW/+OfW9/pnVKPazfWOgNfH2aPem8YQ7ilXGvJE=
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github.com/jackc/pgconn v0.0.0-20190831204454-2fabfa3c18b7/go.mod h1:ZJKsE/KZfsUgOEh9hBm+xYTstcNHg7UPMVJqRfQxq4s=
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github.com/jackc/pgconn v1.5.0 h1:oFSOilzIZkyg787M1fEmyMfOUUvwj0daqYMfaWwNL4o=
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github.com/jackc/pgconn v1.5.0/go.mod h1:QeD3lBfpTFe8WUnPZWN5KY/mB8FGMIYRdd8P8Jr0fAI=
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github.com/jackc/pgio v1.0.0 h1:g12B9UwVnzGhueNavwioyEEpAmqMe1E/BN9ES+8ovkE=
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github.com/jackc/pgio v1.0.0/go.mod h1:oP+2QK2wFfUWgr+gxjoBH9KGBb31Eio69xUb0w5bYf8=
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github.com/jackc/pgmock v0.0.0-20190831213851-13a1b77aafa2/go.mod h1:fGZlG77KXmcq05nJLRkk0+p82V8B8Dw8KN2/V9c/OAE=
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github.com/jackc/pgpassfile v1.0.0 h1:/6Hmqy13Ss2zCq62VdNG8tM1wchn8zjSGOBJ6icpsIM=
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github.com/jackc/pgpassfile v1.0.0/go.mod h1:CEx0iS5ambNFdcRtxPj5JhEz+xB6uRky5eyVu/W2HEg=
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github.com/jackc/pgproto3 v1.1.0 h1:FYYE4yRw+AgI8wXIinMlNjBbp/UitDJwfj5LqqewP1A=
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github.com/jackc/pgproto3 v1.1.0/go.mod h1:eR5FA3leWg7p9aeAqi37XOTgTIbkABlvcPB3E5rlc78=
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github.com/jackc/pgproto3/v2 v2.0.0-alpha1.0.20190420180111-c116219b62db/go.mod h1:bhq50y+xrl9n5mRYyCBFKkpRVTLYJVWeCc+mEAI3yXA=
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github.com/jackc/pgproto3/v2 v2.0.0-alpha1.0.20190609003834-432c2951c711/go.mod h1:uH0AWtUmuShn0bcesswc4aBTWGvw0cAxIJp+6OB//Wg=
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github.com/jackc/pgproto3/v2 v2.0.0-rc3/go.mod h1:ryONWYqW6dqSg1Lw6vXNMXoBJhpzvWKnT95C46ckYeM=
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github.com/jackc/pgproto3/v2 v2.0.0-rc3.0.20190831210041-4c03ce451f29/go.mod h1:ryONWYqW6dqSg1Lw6vXNMXoBJhpzvWKnT95C46ckYeM=
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github.com/jackc/pgproto3/v2 v2.0.1 h1:Rdjp4NFjwHnEslx2b66FfCI2S0LhO4itac3hXz6WX9M=
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github.com/jackc/pgproto3/v2 v2.0.1/go.mod h1:WfJCnwN3HIg9Ish/j3sgWXnAfK8A9Y0bwXYU5xKaEdA=
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github.com/jackc/pgservicefile v0.0.0-20200307190119-3430c5407db8 h1:Q3tB+ExeflWUW7AFcAhXqk40s9mnNYLk1nOkKNZ5GnU=
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github.com/jackc/pgservicefile v0.0.0-20200307190119-3430c5407db8/go.mod h1:vsD4gTJCa9TptPL8sPkXrLZ+hDuNrZCnj29CQpr4X1E=
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github.com/jackc/pgtype v0.0.0-20190421001408-4ed0de4755e0/go.mod h1:hdSHsc1V01CGwFsrv11mJRHWJ6aifDLfdV3aVjFF0zg=
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github.com/jackc/pgtype v0.0.0-20190824184912-ab885b375b90/go.mod h1:KcahbBH1nCMSo2DXpzsoWOAfFkdEtEJpPbVLq8eE+mc=
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github.com/jackc/pgtype v0.0.0-20190828014616-a8802b16cc59/go.mod h1:MWlu30kVJrUS8lot6TQqcg7mtthZ9T0EoIBFiJcmcyw=
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github.com/jackc/pgtype v1.3.0 h1:l8JvKrby3RI7Kg3bYEeU9TA4vqC38QDpFCfcrC7KuN0=
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github.com/jackc/pgtype v1.3.0/go.mod h1:b0JqxHvPmljG+HQ5IsvQ0yqeSi4nGcDTVjFoiLDb0Ik=
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github.com/jackc/pgx v3.6.2+incompatible h1:2zP5OD7kiyR3xzRYMhOcXVvkDZsImVXfj+yIyTQf3/o=
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github.com/jackc/pgx v3.6.2+incompatible/go.mod h1:0ZGrqGqkRlliWnWB4zKnWtjbSWbGkVEFm4TeybAXq+I=
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github.com/jackc/pgx/v4 v4.0.0-20190420224344-cc3461e65d96/go.mod h1:mdxmSJJuR08CZQyj1PVQBHy9XOp5p8/SHH6a0psbY9Y=
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github.com/jackc/pgx/v4 v4.0.0-20190421002000-1b8f0016e912/go.mod h1:no/Y67Jkk/9WuGR0JG/JseM9irFbnEPbuWV2EELPNuM=
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github.com/jackc/pgx/v4 v4.0.0-pre1.0.20190824185557-6972a5742186/go.mod h1:X+GQnOEnf1dqHGpw7JmHqHc1NxDoalibchSk9/RWuDc=
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github.com/jackc/pgx/v4 v4.6.0 h1:Fh0O9GdlG4gYpjpwOqjdEodJUQM9jzN3Hdv7PN0xmm0=
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github.com/jackc/pgx/v4 v4.6.0/go.mod h1:vPh43ZzxijXUVJ+t/EmXBtFmbFVO72cuneCT9oAlxAg=
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github.com/jackc/puddle v0.0.0-20190413234325-e4ced69a3a2b/go.mod h1:m4B5Dj62Y0fbyuIc15OsIqK0+JU8nkqQjsgx7dvjSWk=
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github.com/jackc/puddle v0.0.0-20190608224051-11cab39313c9/go.mod h1:m4B5Dj62Y0fbyuIc15OsIqK0+JU8nkqQjsgx7dvjSWk=
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github.com/jackc/puddle v1.1.0/go.mod h1:m4B5Dj62Y0fbyuIc15OsIqK0+JU8nkqQjsgx7dvjSWk=
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github.com/jmoiron/sqlx v1.2.0 h1:41Ip0zITnmWNR/vHV+S4m+VoUivnWY5E4OJfLZjCJMA=
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github.com/jmoiron/sqlx v1.2.0/go.mod h1:1FEQNm3xlJgrMD+FBdI9+xvCksHtbpVBBw5dYhBSsks=
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github.com/konsorten/go-windows-terminal-sequences v1.0.1/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ=
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github.com/konsorten/go-windows-terminal-sequences v1.0.2/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ=
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github.com/kr/pretty v0.1.0 h1:L/CwN0zerZDmRFUapSPitk6f+Q3+0za1rQkzVuMiMFI=
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github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo=
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github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
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github.com/kr/pty v1.1.8/go.mod h1:O1sed60cT9XZ5uDucP5qwvh+TE3NnUj51EiZO/lmSfw=
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github.com/kr/text v0.1.0 h1:45sCR5RtlFHMR4UwH9sdQ5TC8v0qDQCHnXt+kaKSTVE=
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github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
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github.com/lib/pq v1.0.0/go.mod h1:5WUZQaWbwv1U+lTReE5YruASi9Al49XbQIvNi/34Woo=
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github.com/lib/pq v1.1.0/go.mod h1:5WUZQaWbwv1U+lTReE5YruASi9Al49XbQIvNi/34Woo=
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github.com/lib/pq v1.2.0/go.mod h1:5WUZQaWbwv1U+lTReE5YruASi9Al49XbQIvNi/34Woo=
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github.com/magiconair/properties v1.8.0/go.mod h1:PppfXfuXeibc/6YijjN8zIbojt8czPbwD3XqdrwzmxQ=
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github.com/mattn/go-colorable v0.1.1/go.mod h1:FuOcm+DKB9mbwrcAfNl7/TZVBZ6rcnceauSikq3lYCQ=
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github.com/mattn/go-colorable v0.1.2/go.mod h1:U0ppj6V5qS13XJ6of8GYAs25YV2eR4EVcfRqFIhoBtE=
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github.com/mattn/go-isatty v0.0.5/go.mod h1:Iq45c/XA43vh69/j3iqttzPXn0bhXyGjM0Hdxcsrc5s=
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github.com/mattn/go-isatty v0.0.7/go.mod h1:Iq45c/XA43vh69/j3iqttzPXn0bhXyGjM0Hdxcsrc5s=
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github.com/mattn/go-isatty v0.0.8/go.mod h1:Iq45c/XA43vh69/j3iqttzPXn0bhXyGjM0Hdxcsrc5s=
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github.com/mattn/go-isatty v0.0.9/go.mod h1:YNRxwqDuOph6SZLI9vUUz6OYw3QyUt7WiY2yME+cCiQ=
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github.com/mattn/go-sqlite3 v0.0.0-20161215041557-2d44decb4941/go.mod h1:FPy6KqzDD04eiIsT53CuJW3U88zkxoIYsOqkbpncsNc=
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github.com/mattn/go-sqlite3 v1.9.0/go.mod h1:FPy6KqzDD04eiIsT53CuJW3U88zkxoIYsOqkbpncsNc=
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github.com/mitchellh/go-homedir v1.1.0/go.mod h1:SfyaCUpYCn1Vlf4IUYiD9fPX4A5wJrkLzIz1N1q0pr0=
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github.com/mitchellh/mapstructure v1.1.2/go.mod h1:FVVH3fgwuzCH5S8UJGiWEs2h04kUh9fWfEaFds41c1Y=
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github.com/pelletier/go-toml v1.2.0/go.mod h1:5z9KED0ma1S8pY6P1sdut58dfprrGBbd/94hg7ilaic=
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github.com/pkg/errors v0.8.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
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github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
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github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
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github.com/rs/xid v1.2.1/go.mod h1:+uKXf+4Djp6Md1KODXJxgGQPKngRmWyn10oCKFzNHOQ=
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github.com/rs/zerolog v1.13.0/go.mod h1:YbFCdg8HfsridGWAh22vktObvhZbQsZXe4/zB0OKkWU=
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github.com/rs/zerolog v1.15.0/go.mod h1:xYTKnLHcpfU2225ny5qZjxnj9NvkumZYjJHlAThCjNc=
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github.com/russross/blackfriday v1.5.2/go.mod h1:JO/DiYxRf+HjHt06OyowR9PTA263kcR/rfWxYHBV53g=
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github.com/satori/go.uuid v1.2.0/go.mod h1:dA0hQrYB0VpLJoorglMZABFdXlWrHn1NEOzdhQKdks0=
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github.com/shopspring/decimal v0.0.0-20180709203117-cd690d0c9e24/go.mod h1:M+9NzErvs504Cn4c5DxATwIqPbtswREoFCre64PpcG4=
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github.com/sirupsen/logrus v1.4.1/go.mod h1:ni0Sbl8bgC9z8RoU9G6nDWqqs/fq4eDPysMBDgk/93Q=
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github.com/sirupsen/logrus v1.4.2/go.mod h1:tLMulIdttU9McNUspp0xgXVQah82FyeX6MwdIuYE2rE=
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github.com/spf13/afero v1.1.2/go.mod h1:j4pytiNVoe2o6bmDsKpLACNPDBIoEAkihy7loJ1B0CQ=
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github.com/spf13/cast v1.3.0/go.mod h1:Qx5cxh0v+4UWYiBimWS+eyWzqEqokIECu5etghLkUJE=
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github.com/spf13/cobra v0.0.5 h1:f0B+LkLX6DtmRH1isoNA9VTtNUK9K8xYd28JNNfOv/s=
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@ -60,16 +129,30 @@ github.com/spf13/pflag v1.0.3/go.mod h1:DYY7MBk1bdzusC3SYhjObp+wFpr4gzcvqqNjLnIn
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github.com/spf13/viper v1.3.2/go.mod h1:ZiWeW+zYFKm7srdB9IoDzzZXaJaI5eL9QjNiN/DMA2s=
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github.com/stretchr/objx v0.1.0 h1:4G4v2dO3VZwixGIRoQ5Lfboy6nUhCyYzaqnIAPPhYs4=
|
||||
github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
|
||||
github.com/stretchr/objx v0.1.1/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
|
||||
github.com/stretchr/objx v0.2.0/go.mod h1:qt09Ya8vawLte6SNmTgCsAVtYtaKzEcn8ATUoHMkEqE=
|
||||
github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
|
||||
github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
|
||||
github.com/stretchr/testify v1.4.0 h1:2E4SXV/wtOkTonXsotYi4li6zVWxYlZuYNCXe9XRJyk=
|
||||
github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4=
|
||||
github.com/stretchr/testify v1.5.1/go.mod h1:5W2xD1RspED5o8YsWQXVCued0rvSQ+mT+I5cxcmMvtA=
|
||||
github.com/ugorji/go/codec v0.0.0-20181204163529-d75b2dcb6bc8/go.mod h1:VFNgLljTbGfSG7qAOspJ7OScBnGdDN/yBr0sguwnwf0=
|
||||
github.com/xordataexchange/crypt v0.0.3-0.20170626215501-b2862e3d0a77/go.mod h1:aYKd//L2LvnjZzWKhF00oedf4jCCReLcmhLdhm1A27Q=
|
||||
github.com/zenazn/goji v0.9.0/go.mod h1:7S9M489iMyHBNxwZnk9/EHS098H4/F6TATF2mIxtB1Q=
|
||||
go.uber.org/atomic v1.3.2/go.mod h1:gD2HeocX3+yG+ygLZcrzQJaqmWj9AIm7n08wl/qW/PE=
|
||||
go.uber.org/atomic v1.4.0/go.mod h1:gD2HeocX3+yG+ygLZcrzQJaqmWj9AIm7n08wl/qW/PE=
|
||||
go.uber.org/goleak v1.0.0 h1:qsup4IcBdlmsnGfqyLl4Ntn3C2XCCuKAE7DwHpScyUo=
|
||||
go.uber.org/goleak v1.0.0/go.mod h1:8a7PlsEVH3e/a/GLqe5IIrQx6GzcnRmZEufDUTk4A7A=
|
||||
go.uber.org/multierr v1.1.0/go.mod h1:wR5kodmAFQ0UK8QlbwjlSNy0Z68gJhDJUG5sjR94q/0=
|
||||
go.uber.org/zap v1.9.1/go.mod h1:vwi/ZaCAaUcBkycHslxD9B2zi4UTXhF60s6SWpuDF0Q=
|
||||
go.uber.org/zap v1.10.0/go.mod h1:vwi/ZaCAaUcBkycHslxD9B2zi4UTXhF60s6SWpuDF0Q=
|
||||
golang.org/x/crypto v0.0.0-20181203042331-505ab145d0a9/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
|
||||
golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
|
||||
golang.org/x/crypto v0.0.0-20190411191339-88737f569e3a/go.mod h1:WFFai1msRO1wXaEeE5yQxYXgSfI8pQAWXbQop6sCtWE=
|
||||
golang.org/x/crypto v0.0.0-20190820162420-60c769a6c586/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
|
||||
golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
|
||||
golang.org/x/crypto v0.0.0-20200323165209-0ec3e9974c59 h1:3zb4D3T4G8jdExgVU/95+vQXfpEPiMdCaZgmGVxjNHM=
|
||||
golang.org/x/crypto v0.0.0-20200323165209-0ec3e9974c59/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
|
||||
golang.org/x/lint v0.0.0-20190930215403-16217165b5de h1:5hukYrvBGR8/eNkX5mdUezrA6JiaEZDtJb9Ei+1LlBs=
|
||||
golang.org/x/lint v0.0.0-20190930215403-16217165b5de/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
|
||||
golang.org/x/mod v0.1.1-0.20191105210325-c90efee705ee/go.mod h1:QqPTAvyqsEbceGzBzNggFXnrqF1CaUcvgkdR5Ot7KZg=
|
||||
|
|
@ -80,22 +163,36 @@ golang.org/x/net v0.0.0-20190620200207-3b0461eec859 h1:R/3boaszxrf1GEUWTVDzSKVwL
|
|||
golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
|
||||
golang.org/x/net v0.0.0-20190628185345-da137c7871d7 h1:rTIdg5QFRR7XCaK4LCjBiPbx8j4DQRpdYMnGn/bJUEU=
|
||||
golang.org/x/net v0.0.0-20190628185345-da137c7871d7/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
|
||||
golang.org/x/net v0.0.0-20190813141303-74dc4d7220e7/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
|
||||
golang.org/x/oauth2 v0.0.0-20170207211851-4464e7848382/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
|
||||
golang.org/x/perf v0.0.0-20191209155426-36b577b0eb03 h1:KBM1Z6efANgwwa1Rns+b3KRyuKhLRVC/OeHhFMFJqOA=
|
||||
golang.org/x/perf v0.0.0-20191209155426-36b577b0eb03/go.mod h1:FrqOtQDO3iMDVUtw5nNTDFpR1HUCGh00M3kj2wiSzLQ=
|
||||
golang.org/x/sync v0.0.0-20190227155943-e225da77a7e6/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
|
||||
golang.org/x/sync v0.0.0-20190423024810-112230192c58 h1:8gQV6CLnAEikrhgkHFbMAEhagSSnXWGV915qUMm9mrU=
|
||||
golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
|
||||
golang.org/x/sys v0.0.0-20180905080454-ebe1bf3edb33/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
|
||||
golang.org/x/sys v0.0.0-20181205085412-a5c9d58dba9a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
|
||||
golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
|
||||
golang.org/x/sys v0.0.0-20190222072716-a9d3bda3a223/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
|
||||
golang.org/x/sys v0.0.0-20190403152447-81d4e9dc473e/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
|
||||
golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
|
||||
golang.org/x/sys v0.0.0-20190422165155-953cdadca894/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
|
||||
golang.org/x/sys v0.0.0-20190813064441-fde4db37ae7a/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
|
||||
golang.org/x/sys v0.0.0-20190826190057-c7b8b68b1456/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
|
||||
golang.org/x/text v0.0.0-20170915032832-14c0d48ead0c/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
|
||||
golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
|
||||
golang.org/x/text v0.3.2 h1:tW2bmiBqwgJj/UpqtC8EpXEZVYOwU0yG4iWbprSVAcs=
|
||||
golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
|
||||
golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
|
||||
golang.org/x/tools v0.0.0-20190311212946-11955173bddd/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
|
||||
golang.org/x/tools v0.0.0-20190425150028-36563e24a262/go.mod h1:RgjU9mgBXZiqYHBnxXauZ1Gv1EHHAz9KjViQ78xBX0Q=
|
||||
golang.org/x/tools v0.0.0-20190425163242-31fd60d6bfdc/go.mod h1:RgjU9mgBXZiqYHBnxXauZ1Gv1EHHAz9KjViQ78xBX0Q=
|
||||
golang.org/x/tools v0.0.0-20190823170909-c4a336ef6a2f/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
|
||||
golang.org/x/tools v0.0.0-20191108193012-7d206e10da11/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
|
||||
golang.org/x/tools v0.0.0-20200125223703-d33eef8e6825 h1:aNQeSIHKi0RWpKA5NO0CqyLjx6Beh5l0LLUEnndEjz0=
|
||||
golang.org/x/tools v0.0.0-20200125223703-d33eef8e6825/go.mod h1:TB2adYChydJhpapKDTa4BR/hXlZSLoq2Wpct/0txZ28=
|
||||
golang.org/x/xerrors v0.0.0-20190410155217-1f06c39b4373/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
|
||||
golang.org/x/xerrors v0.0.0-20190513163551-3ee3066db522/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
|
||||
golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
|
||||
golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898 h1:/atklqdjdhuosWIl6AIbOeHJjicWYPqR9bpxqxYG2pA=
|
||||
golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
|
||||
|
|
@ -108,6 +205,7 @@ gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+
|
|||
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
|
||||
gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127 h1:qIbj1fsPNlZgppZ+VLlY7N33q108Sa+fhmuc+sWQYwY=
|
||||
gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
|
||||
gopkg.in/inconshreveable/log15.v2 v2.0.0-20180818164646-67afb5ed74ec/go.mod h1:aPpfJ7XW+gOuirDoZ8gHhLh3kZ1B08FtV2bbmy7Jv3s=
|
||||
gopkg.in/yaml.v2 v2.2.2 h1:ZCJp+EgiOT7lHqUV2J862kp8Qj64Jo6az82+3Td9dZw=
|
||||
gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
|
||||
gopkg.in/yaml.v2 v2.2.8 h1:obN1ZagJSUGI0Ek/LBmuj4SNLPfIny3KsKFopxRdj10=
|
||||
|
|
|
|||
|
|
@ -1,3 +1,21 @@
|
|||
if err := db.Ping(ctx); err != nil {
|
||||
// do something with error
|
||||
package alive
|
||||
|
||||
import (
|
||||
"context"
|
||||
"database/sql"
|
||||
"log"
|
||||
|
||||
_ "github.com/jackc/pgx/v4/stdlib"
|
||||
)
|
||||
|
||||
func IsItAliveQuestionMark() {
|
||||
db, err := sql.Open("pgx", "postgres://pgx_md5:secret@localhost:5432/pgx_test")
|
||||
if err != nil {
|
||||
log.Fatal(err)
|
||||
}
|
||||
defer db.Close()
|
||||
|
||||
if err := db.PingContext(context.Background()); err != nil {
|
||||
log.Fatal(err)
|
||||
}
|
||||
}
|
||||
|
|
|
|||
|
|
@ -1,7 +1,17 @@
|
|||
c, err := db.Conn(ctx)
|
||||
if err != nil {
|
||||
log.Fatal(err)
|
||||
}
|
||||
package query
|
||||
|
||||
_ := c.PingContext(ctx)
|
||||
_, _ := c.QueryContext(...)
|
||||
import (
|
||||
"context"
|
||||
"database/sql"
|
||||
"log"
|
||||
)
|
||||
|
||||
func Conn(ctx context.Context, db *sql.DB) {
|
||||
c, err := db.Conn(ctx)
|
||||
if err != nil {
|
||||
log.Fatal(err)
|
||||
}
|
||||
defer c.Close()
|
||||
|
||||
_ = c.PingContext(ctx)
|
||||
}
|
||||
|
|
|
|||
|
|
@ -1,9 +1,19 @@
|
|||
res, err := db.ExecContext(ctx, "UPDATE users SET name = $1 WHERE id = $2", "William Mandella", 1)
|
||||
if err != nil {
|
||||
log.Fatal(err)
|
||||
package exec
|
||||
|
||||
import (
|
||||
"context"
|
||||
"database/sql"
|
||||
"log"
|
||||
)
|
||||
|
||||
func Exec(ctx context.Context, db *sql.DB) {
|
||||
res, err := db.ExecContext(ctx, "UPDATE users SET name = $1 WHERE id = $2", "William Mandella", 1)
|
||||
if err != nil {
|
||||
log.Fatal(err)
|
||||
}
|
||||
|
||||
lastID, _ := res.LastInsertId()
|
||||
rowsAffected, _ := res.RowsAffected()
|
||||
|
||||
log.Println(lastID, rowsAffected)
|
||||
}
|
||||
|
||||
lastID, _ := res.LastInsertId()
|
||||
rowsAffeced, := res.RowsAffected()
|
||||
|
||||
log.Println(lastID, rowsAffected)
|
||||
|
|
|
|||
|
|
@ -1,4 +1,6 @@
|
|||
package exec
|
||||
|
||||
type Result interface {
|
||||
LastInsertId() (int64, error)
|
||||
RowsAffected() (int64, error)
|
||||
LastInsertId() (int64, error)
|
||||
RowsAffected() (int64, error)
|
||||
}
|
||||
|
|
|
|||
|
|
@ -1,5 +1,18 @@
|
|||
db.ExecContext(
|
||||
ctx,
|
||||
"INSERT INTO users(name) VALUES(@name)"),
|
||||
sql.Named("name", "Rocinante"),
|
||||
package named
|
||||
|
||||
import (
|
||||
"context"
|
||||
"database/sql"
|
||||
"log"
|
||||
)
|
||||
|
||||
func Insert(ctx context.Context, db *sql.DB) {
|
||||
_, err := db.ExecContext(
|
||||
ctx,
|
||||
"INSERT INTO users(name) VALUES(@name)",
|
||||
sql.Named("name", "Amos Burton"),
|
||||
)
|
||||
if err != nil {
|
||||
log.Fatal(err)
|
||||
}
|
||||
}
|
||||
|
|
|
|||
|
|
@ -1,4 +1,6 @@
|
|||
package named
|
||||
|
||||
type NamedArg struct {
|
||||
Name string
|
||||
Value interface{}
|
||||
Name string
|
||||
Value interface{}
|
||||
}
|
||||
|
|
|
|||
28
lectures/07-sql/nulls/insert.go
Normal file
28
lectures/07-sql/nulls/insert.go
Normal file
|
|
@ -0,0 +1,28 @@
|
|||
package nulls
|
||||
|
||||
import (
|
||||
"context"
|
||||
"database/sql"
|
||||
"log"
|
||||
)
|
||||
|
||||
func Insert(ctx context.Context, db *sql.DB, name interface{}) {
|
||||
_, err := db.ExecContext(
|
||||
ctx,
|
||||
"INSERT INTO users(name) VALUES(@name)",
|
||||
sql.Named("name", name),
|
||||
)
|
||||
if err != nil {
|
||||
log.Fatal(err)
|
||||
}
|
||||
}
|
||||
|
||||
func DoStuff(ctx context.Context, db *sql.DB) {
|
||||
// Nulls
|
||||
Insert(ctx, db, nil)
|
||||
Insert(ctx, db, sql.NullString{})
|
||||
|
||||
// Values
|
||||
Insert(ctx, db, "The Shrike")
|
||||
Insert(ctx, db, sql.NullString{String: "The Shrike", Valid: true})
|
||||
}
|
||||
|
|
@ -1,6 +0,0 @@
|
|||
var name sql.NullString
|
||||
db.ExecContext(
|
||||
ctx,
|
||||
"INSERT INTO users(name) VALUES(@name)"),
|
||||
sql.Named("name", name),
|
||||
)
|
||||
|
|
@ -1,6 +0,0 @@
|
|||
name := sql.NullString{Value: "The Shrike",Valid: true}
|
||||
db.ExecContext(
|
||||
ctx,
|
||||
"INSERT INTO users(name) VALUES(@name)"),
|
||||
sql.Named("name", name),
|
||||
)
|
||||
|
|
@ -1,4 +1,6 @@
|
|||
package nulls
|
||||
|
||||
type NullString struct {
|
||||
String string
|
||||
Valid bool
|
||||
String string
|
||||
Valid bool
|
||||
}
|
||||
|
|
|
|||
|
|
@ -1,12 +1,28 @@
|
|||
for rows.Next() {
|
||||
var s sql.NullString
|
||||
if err := rows.Scan(&s); err != nil {
|
||||
log.Fatal(err)
|
||||
}
|
||||
package nulls
|
||||
|
||||
if s.Valid {
|
||||
//
|
||||
} else {
|
||||
//
|
||||
}
|
||||
import (
|
||||
"context"
|
||||
"database/sql"
|
||||
"log"
|
||||
)
|
||||
|
||||
func Results(ctx context.Context, db *sql.DB) {
|
||||
rows, err := db.QueryContext(ctx, "SELECT id, name FROM users WHERE id = $1", 1)
|
||||
if err != nil {
|
||||
log.Fatal(err)
|
||||
}
|
||||
defer rows.Close()
|
||||
|
||||
for rows.Next() {
|
||||
var s sql.NullString
|
||||
if err := rows.Scan(&s); err != nil {
|
||||
log.Fatal(err)
|
||||
}
|
||||
|
||||
if s.Valid {
|
||||
//
|
||||
} else {
|
||||
//
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
|
|||
|
|
@ -1,7 +1,17 @@
|
|||
import (
|
||||
"context"
|
||||
package open
|
||||
|
||||
"github.com/jackc/pgx/v4"
|
||||
import (
|
||||
"context"
|
||||
"log"
|
||||
|
||||
"github.com/jackc/pgx/v4"
|
||||
)
|
||||
|
||||
conn, err := pgx.Connect(context.Background(), "postgres://pgx_md5:secret@localhost:5432/pgx_test")
|
||||
func PGXOpen() {
|
||||
ctx := context.Background()
|
||||
conn, err := pgx.Connect(ctx, "postgres://pgx_md5:secret@localhost:5432/pgx_test")
|
||||
if err != nil {
|
||||
log.Fatal(err)
|
||||
}
|
||||
defer conn.Close(ctx)
|
||||
}
|
||||
|
|
|
|||
|
|
@ -1,11 +1,16 @@
|
|||
import (
|
||||
"database/sql"
|
||||
package open
|
||||
|
||||
_ "github.com/jackc/pgx/v4/stdlib"
|
||||
import (
|
||||
"database/sql"
|
||||
"log"
|
||||
|
||||
_ "github.com/jackc/pgx/v4/stdlib"
|
||||
)
|
||||
|
||||
db, err := sql.Open("pgx", "postgres://pgx_md5:secret@localhost:5432/pgx_test")
|
||||
if err != nil {
|
||||
return err
|
||||
func SQLOpen() {
|
||||
db, err := sql.Open("pgx", "postgres://pgx_md5:secret@localhost:5432/pgx_test")
|
||||
if err != nil {
|
||||
log.Fatal(err)
|
||||
}
|
||||
defer db.Close()
|
||||
}
|
||||
defer db.Close()
|
||||
|
|
|
|||
|
|
@ -1,19 +1,24 @@
|
|||
stmt, err := db.PrepareContext(ctx, "SELECT name FROM users WHERE id = $1")
|
||||
if err != nil {
|
||||
log.Fatal(err)
|
||||
}
|
||||
defer stmt.Close()
|
||||
|
||||
for i := 1; ; i++ {
|
||||
row, err := stmt.QueryRowContext(ctx, i)
|
||||
if err != nil {
|
||||
log.Fatal(err)
|
||||
}
|
||||
|
||||
var name string
|
||||
if err = row.Scan(&name); err != nil {
|
||||
log.Fatal(err)
|
||||
}
|
||||
|
||||
log.Println(name)
|
||||
package prepare
|
||||
|
||||
import (
|
||||
"context"
|
||||
"database/sql"
|
||||
"log"
|
||||
)
|
||||
|
||||
func Prepare(ctx context.Context, db *sql.DB) {
|
||||
stmt, err := db.PrepareContext(ctx, "SELECT name FROM users WHERE id = $1")
|
||||
if err != nil {
|
||||
log.Fatal(err)
|
||||
}
|
||||
defer stmt.Close()
|
||||
|
||||
for i := 1; ; i++ {
|
||||
var name string
|
||||
if err = stmt.QueryRowContext(ctx, i).Scan(&name); err != nil {
|
||||
log.Fatal(err)
|
||||
}
|
||||
|
||||
log.Println(name)
|
||||
}
|
||||
}
|
||||
|
|
|
|||
|
|
@ -1,19 +1,29 @@
|
|||
rows, err := db.QueryContext(ctx, "SELECT id, name FROM users WHERE id = $1", 1)
|
||||
if err != nil {
|
||||
log.Fatal(err)
|
||||
}
|
||||
defer rows.Close()
|
||||
package query
|
||||
|
||||
for rows.Next() {
|
||||
var id int
|
||||
var name string
|
||||
if err := rows.Scan(&id, &name); err != nil {
|
||||
log.Fatal(err)
|
||||
}
|
||||
import (
|
||||
"context"
|
||||
"database/sql"
|
||||
"log"
|
||||
)
|
||||
|
||||
log.Println(id, name)
|
||||
}
|
||||
func Query(ctx context.Context, db *sql.DB) {
|
||||
rows, err := db.QueryContext(ctx, "SELECT id, name FROM users WHERE id = $1", 1)
|
||||
if err != nil {
|
||||
log.Fatal(err)
|
||||
}
|
||||
defer rows.Close()
|
||||
|
||||
if err = rows.Err(); err != nil {
|
||||
log.Fatal(err)
|
||||
for rows.Next() {
|
||||
var id int
|
||||
var name string
|
||||
if err := rows.Scan(&id, &name); err != nil {
|
||||
log.Fatal(err)
|
||||
}
|
||||
|
||||
log.Println(id, name)
|
||||
}
|
||||
|
||||
if err = rows.Err(); err != nil {
|
||||
log.Fatal(err)
|
||||
}
|
||||
}
|
||||
|
|
|
|||
|
|
@ -1,13 +1,24 @@
|
|||
var id int
|
||||
var name string
|
||||
err = db.QueryRowContext(ctx, "SELECT id, name FROM users WHERE id = $1", 1).Scan(&id, &name);
|
||||
if err != nil {
|
||||
if errors.Is(err, sql.ErrNoRows) {
|
||||
log.Println("nothing found")
|
||||
return
|
||||
}
|
||||
package query
|
||||
|
||||
log.Fatal(err)
|
||||
import (
|
||||
"context"
|
||||
"database/sql"
|
||||
"errors"
|
||||
"log"
|
||||
)
|
||||
|
||||
func QueryRow(ctx context.Context, db *sql.DB) {
|
||||
var id int
|
||||
var name string
|
||||
err := db.QueryRowContext(ctx, "SELECT id, name FROM users WHERE id = $1", 1).Scan(&id, &name)
|
||||
if err != nil {
|
||||
if errors.Is(err, sql.ErrNoRows) {
|
||||
log.Println("nothing found")
|
||||
return
|
||||
}
|
||||
|
||||
log.Fatal(err)
|
||||
}
|
||||
|
||||
log.Println(name)
|
||||
}
|
||||
|
||||
log.Println(name)
|
||||
|
|
|
|||
|
|
@ -20,10 +20,10 @@ database/sql
|
|||
* Подключение
|
||||
|
||||
- через database/sql
|
||||
.code open/sql.go
|
||||
.code open/sql.go /^func SQLOpen/,/^}/
|
||||
|
||||
- драйвером на прямую
|
||||
.code open/pgx.go
|
||||
.code open/pgx.go /^func PGXOpen/,/^}/
|
||||
|
||||
* Основные сущности
|
||||
|
||||
|
|
@ -37,45 +37,45 @@ database/sql
|
|||
|
||||
* Проверка доступности
|
||||
|
||||
.code alive/ping.go
|
||||
.code alive/ping.go /^func IsItAliveQuestionMark/,/^}/
|
||||
|
||||
* Запрос с получением результатов
|
||||
|
||||
.code query/query.go
|
||||
.code query/query.go /^func Query/,/^}/
|
||||
|
||||
* Запрос с получением одного результата
|
||||
|
||||
.code query/queryrow.go
|
||||
.code query/queryrow.go /^func QueryRow/,/^}/
|
||||
|
||||
* Запрос без результатов
|
||||
|
||||
.code exec/exec.go
|
||||
.code exec/exec.go /^func Exec/,/^}/
|
||||
|
||||
Возвращаемый тип
|
||||
.code exec/result.go
|
||||
|
||||
* Nulls
|
||||
|
||||
.code nulls/nulls.go
|
||||
|
||||
* Null в аргументах
|
||||
|
||||
Передаём null
|
||||
.code nulls/insert_null.go
|
||||
Передаём значение
|
||||
.code nulls/insert_value.go
|
||||
|
||||
* Null в результатах
|
||||
.code nulls/rows.go
|
||||
.code exec/result.go /^type Result/,/^}/
|
||||
|
||||
* Именованые аргументы
|
||||
- реализуются на уровне драйвера
|
||||
|
||||
.code named/named.go
|
||||
|
||||
.code named/named.go /^type NamedArg/,/^}/
|
||||
|
||||
* Именованые аргументы - использование
|
||||
.code named/insert.go
|
||||
|
||||
.code named/insert.go /^func Insert/,/^}/
|
||||
|
||||
* Nulls
|
||||
|
||||
.code nulls/nulls.go /^type NullString/,/^}/
|
||||
|
||||
* Null в аргументах
|
||||
|
||||
.code nulls/insert.go /^func Insert/,/^}/
|
||||
|
||||
Передаём значения
|
||||
.code nulls/insert.go /^func DoStuff/,/^}/
|
||||
|
||||
* Null в результатах
|
||||
.code nulls/rows.go /^func Results/,/^}/
|
||||
|
||||
* Prepared Statements
|
||||
|
||||
|
|
@ -89,15 +89,15 @@ database/sql
|
|||
|
||||
* Prepare
|
||||
|
||||
.code prepare/prepare.go
|
||||
.code prepare/prepare.go /^func Prepare/,/^}/
|
||||
|
||||
* Одно подключение
|
||||
|
||||
.code conn/conn.go
|
||||
.code conn/conn.go /^func Conn/,/^}/
|
||||
|
||||
* Транзакции
|
||||
|
||||
.code tx/tx.go
|
||||
.code tx/tx.go /^func Begin/,/^}/
|
||||
|
||||
* Типовые ошибки и подводные камни
|
||||
|
||||
|
|
@ -129,15 +129,36 @@ database/sql
|
|||
|
||||
* sqlx - обобщенный интерфейс
|
||||
|
||||
.code sqlx/ext.go
|
||||
.code sqlx/ext.go /^type QueryerContext/,/^}/
|
||||
.code sqlx/ext.go /^type ExecerContext/,/^}/
|
||||
.code sqlx/ext.go /^type ExtContext/,/^}/
|
||||
|
||||
* sqlx - StructScan
|
||||
|
||||
.code sqlx/structscan.go
|
||||
func (r *Rows) StructScan(dest interface{}) error
|
||||
|
||||
func (r *Row) StructScan(dest interface{}) error
|
||||
|
||||
func StructScan(rows rowsi, dest interface{}) error
|
||||
|
||||
type rowsi interface {
|
||||
Close() error
|
||||
Columns() ([]string, error)
|
||||
Err() error
|
||||
Next() bool
|
||||
Scan(...interface{}) error
|
||||
}
|
||||
|
||||
* sqlx - StructScan на практике
|
||||
|
||||
.code sqlx/example.go
|
||||
.code sqlx/structscan.go /^func Example/,/^}/
|
||||
|
||||
* sqlx - именованые аргументы
|
||||
|
||||
- работают для любого драйвера
|
||||
- тоже защищают от SQL-injection
|
||||
|
||||
.code sqlx/named.go /^func Insert/,/^}/
|
||||
|
||||
* GORM
|
||||
|
||||
|
|
|
|||
|
|
@ -1,7 +1,14 @@
|
|||
package sql
|
||||
|
||||
import (
|
||||
"context"
|
||||
"database/sql/driver"
|
||||
)
|
||||
|
||||
type Driver interface {
|
||||
Open(name string) (Conn, error)
|
||||
Open(name string) (driver.Conn, error)
|
||||
}
|
||||
|
||||
type QueryerContext interface {
|
||||
QueryContext(ctx context.Context, query string, args []NamedValue) (Rows, error)
|
||||
QueryContext(ctx context.Context, query string, args []driver.NamedValue) (driver.Rows, error)
|
||||
}
|
||||
|
|
|
|||
|
|
@ -1,21 +0,0 @@
|
|||
rows, err := db.QueryContext(ctx, "SELECT id, name FROM users WHERE id = $1", 1)
|
||||
if err != nil {
|
||||
log.Fatal(err)
|
||||
}
|
||||
defer rows.Close()
|
||||
|
||||
for rows.Next() {
|
||||
var value struct {
|
||||
ID int `db:"id"`
|
||||
Name string `db:"name"`
|
||||
}
|
||||
if err := rows.StructScan(&value); err != nil {
|
||||
log.Fatal(err)
|
||||
}
|
||||
|
||||
log.Println(value)
|
||||
}
|
||||
|
||||
if err = rows.Err(); err != nil {
|
||||
log.Fatal(err)
|
||||
}
|
||||
|
|
@ -1,7 +1,16 @@
|
|||
package sqlx
|
||||
|
||||
import (
|
||||
"context"
|
||||
"database/sql"
|
||||
|
||||
"github.com/jmoiron/sqlx"
|
||||
)
|
||||
|
||||
type QueryerContext interface {
|
||||
QueryContext(ctx context.Context, query string, args ...interface{}) (*sql.Rows, error)
|
||||
QueryxContext(ctx context.Context, query string, args ...interface{}) (*Rows, error)
|
||||
QueryRowxContext(ctx context.Context, query string, args ...interface{}) *Row
|
||||
QueryxContext(ctx context.Context, query string, args ...interface{}) (*sqlx.Rows, error)
|
||||
QueryRowxContext(ctx context.Context, query string, args ...interface{}) *sqlx.Row
|
||||
}
|
||||
|
||||
type ExecerContext interface {
|
||||
|
|
|
|||
21
lectures/07-sql/sqlx/named.go
Normal file
21
lectures/07-sql/sqlx/named.go
Normal file
|
|
@ -0,0 +1,21 @@
|
|||
package sqlx
|
||||
|
||||
import (
|
||||
"context"
|
||||
"log"
|
||||
|
||||
"github.com/jmoiron/sqlx"
|
||||
)
|
||||
|
||||
func Insert(ctx context.Context, db *sqlx.DB) {
|
||||
_, err := db.NamedExecContext(
|
||||
ctx,
|
||||
"INSERT INTO users(name) VALUES(:name)",
|
||||
map[string]interface{}{
|
||||
"name": "Jukka Sarasti",
|
||||
},
|
||||
)
|
||||
if err != nil {
|
||||
log.Fatal(err)
|
||||
}
|
||||
}
|
||||
|
|
@ -1,10 +1,16 @@
|
|||
package sqlx
|
||||
|
||||
import (
|
||||
"github.com/jmoiron/sqlx"
|
||||
_ "github.com/jackc/pgx/v4/stdlib"
|
||||
"log"
|
||||
|
||||
_ "github.com/jackc/pgx/v4/stdlib"
|
||||
"github.com/jmoiron/sqlx"
|
||||
)
|
||||
|
||||
db, err := sqlx.Open("pgx", "postgres://pgx_md5:secret@localhost:5432/pgx_test")
|
||||
if err != nil {
|
||||
return err
|
||||
func Open() {
|
||||
db, err := sqlx.Open("pgx", "postgres://pgx_md5:secret@localhost:5432/pgx_test")
|
||||
if err != nil {
|
||||
log.Fatal(err)
|
||||
}
|
||||
defer db.Close()
|
||||
}
|
||||
defer db.Close()
|
||||
|
|
|
|||
|
|
@ -1,5 +1,32 @@
|
|||
func StructScan(rows rowsi, dest interface{}) error
|
||||
package sqlx
|
||||
|
||||
func (r *Rows) StructScan(dest interface{}) error
|
||||
import (
|
||||
"context"
|
||||
"log"
|
||||
|
||||
func (r *Row) StructScan(dest interface{}) error
|
||||
"github.com/jmoiron/sqlx"
|
||||
)
|
||||
|
||||
func Example(ctx context.Context, db *sqlx.DB) {
|
||||
rows, err := db.QueryContext(ctx, "SELECT id, name FROM users WHERE id = $1", 1)
|
||||
if err != nil {
|
||||
log.Fatal(err)
|
||||
}
|
||||
defer rows.Close()
|
||||
|
||||
for rows.Next() {
|
||||
var value struct {
|
||||
ID int `db:"id"`
|
||||
Name string `db:"name"`
|
||||
}
|
||||
if err := sqlx.StructScan(rows, &value); err != nil {
|
||||
log.Fatal(err)
|
||||
}
|
||||
|
||||
log.Println(value)
|
||||
}
|
||||
|
||||
if err = rows.Err(); err != nil {
|
||||
log.Fatal(err)
|
||||
}
|
||||
}
|
||||
|
|
|
|||
|
|
@ -1,13 +1,23 @@
|
|||
tx, err := db.BeginTx(ctx, nil)
|
||||
if err != nil {
|
||||
log.Fatal(err)
|
||||
}
|
||||
defer tx.Rollback()
|
||||
package tx
|
||||
|
||||
if _, err = tx.ExecContext(ctx, ...); err != nil {
|
||||
log.Fatal(err)
|
||||
}
|
||||
import (
|
||||
"context"
|
||||
"database/sql"
|
||||
"log"
|
||||
)
|
||||
|
||||
if err = tx.Commit(); err != nil {
|
||||
log.Fatal(err)
|
||||
func Begin(ctx context.Context, db *sql.DB) {
|
||||
tx, err := db.BeginTx(ctx, nil)
|
||||
if err != nil {
|
||||
log.Fatal(err)
|
||||
}
|
||||
defer tx.Rollback()
|
||||
|
||||
if _, err = tx.ExecContext(ctx, `UPDATE users SET name = "Tyador Borlú" WHERE id = 1`); err != nil {
|
||||
log.Fatal(err)
|
||||
}
|
||||
|
||||
if err = tx.Commit(); err != nil {
|
||||
log.Fatal(err)
|
||||
}
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in a new issue