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【Go活用事例】 安全運転支援サービスを支える 運用管理システム
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Hirotaka Suzuki
November 01, 2019
Technology
3
1.4k
【Go活用事例】 安全運転支援サービスを支える 運用管理システム
2019/11/1 の、DeNA.go #3 の発表資料です。
Hirotaka Suzuki
November 01, 2019
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Transcript
ʲ(P׆༻ࣄྫʳ ҆શӡసࢧԉαʔϏεΛࢧ͑Δ ӡ༻ཧγεςϜ ླ༟ਸ!TVIJSPUBLB ΦʔτϞʔςΟϒࣄۀຊ෦εϚʔτυϥΠϏϯά෦γεςϜ։ൃάϧʔϓ גࣜձࣾσΟʔɾΤψɾΤʔ The Go
gopher was designed by Renee French.
ࣗݾհ ླ༟ਸ!TVIJSPUBLB ϑϦʔϥϯεɾϔϧεςοΫܥελʔτΞοϓΛܦͯɺ %F/"ೖࣾɻ ަ௨ࣄނݮαʔϏε%3*7&$)"35ͷαʔόʔΞϓϦ έʔγϣϯ։ൃΛ͍ͬͯ·͢ɻ 8FCͷਐԽͱͱʹಈըαΠτ͔ΒϞϏϦςΟαʔϏε ·ͰؔΘ͖ͬͯͯɺͬͱͬͱ8FC͕׆༂͢Δࣾձʹ
͍͖͍ͯͨ͠ɻ
ຊͷΞδΣϯμ (PΛͬͨ։ൃͷݱͷงғؾΛ͓͍͑ͨ͠ʂ • (PΛͬͯͳʹΛͭͬͨ͘ͷʁ • ͳΜͰ(PΛ࠾༻ͨ͠ͷʁ • ͲΜͳϥΠϒϥϦΛͬͯΔͷʁ • ۩ମతͳ࣮ʹ͍ͭͯ
• 3BJMTͱͷซ༻ͷίπ • ։ൃͰۤ࿑ͨͯ͠͠Δ͜ͱʁ
(PͰͳʹΛ͍ͭͬͯ͘Δ͔
%3*7&$)"35ͱʁ
%3*7&$)"35ͱ 4 A2 DRIVE CHART
%3*7&$)"35ͷ࣮ূޮՌ 5 A3 DRIVE CHART
ं֎ΧϝϥͷΑ͏͢ 㾎ंؒڑෆ 㾎Ұ࣌ෆఀࢭ 㾎ա
ंΧϝϥͷΑ͏͢ 㾎ݟ 㾎ډΓ
ʑͷӡసϨϙʔτ 9 A7 ӡసͷΫηΛݟ͑ΔԽ͠ɺةݥͳಈը͚ͩϐοΫΞοϓɻ
%3*7&$)"35ͷӡ༻ཧ͕Ͱ͖Δ 8&#γεςϜΛͭ͘Γ·ͨ͠
ͨͱ͑ɺ͜Μͳ͜ͱ͕Ͱ͖·͢ ✓ ֤ςʔϒϧʢҎ্ʣͷ$36%ૢ࡞ΠϯϙʔτɾΤΫεϙʔτ ✓ ंࡌثͷ෦Λൃͯ͠ɺൃॻͷ1%'Λμϯϩʔυ͢Δ ✓ ෦͕ೲ͞Εͨͱ͖෦͕༻͞Εͨͱ͖ʹɺࡏݿΛਖ਼͘͠อͭ ✓ ͰͷंࡌثͷΈཱ͔ͯΒൃૹ·ͰΛτϥοΩϯά͢Δ ✓
Ͳͷंࡌث͕Ͳͷं྆ʹऔΓ͚ΒΕ͍ͯΔ͔ཧ͢Δ ✓ ंࡌثʹ৴͢ΔΞϓϦέʔγϣϯΛΞοϓϩʔυ͢Δ ✓ "*ʹΑΔϢʔβʔͷإೝূͷਖ਼֬ੑΛνΣοΫ͢Δ ✓ Ϣʔβʔ͔ΒͷϑΟʔυόοΫΛ֬ೝͯ͠ɺϝʔϧฦ৴͢Δ ✓ ϢʔβʔͷݖݶΛΘ͔Γ͍͢(6*Ͱ֬ೝɾมߋ͢Δ ✓ ंࡌثͷՔಇঢ়گΛϦΞϧλΠϜͰूܭ͢Δ ɾɾɾɾɾɾ
ը໘հ
ं྆Ұཡը໘
ं྆Ұཡը໘ʢ֦େʣ $47Πϯϙʔτ $47ΤΫεϙʔτ ϑΟϧλʢΠϯΫϦϝϯλϧαʔνʣ ϑΟϧλʢϓϧμϯʣ ৄࡉදࣔϘλϯ আϘλϯ ҹϘλϯ
෦ൃը໘
ंࡌثऔΓ͚ը໘
ंࡌثΞϓϦέʔγϣϯ৴ը໘
Ϣʔβʔཧը໘
(PΛ࠾༻͢Δ·ͰͷಓͷΓ
ΞʔΩςΫνϟ
ΞʔΩςΫνϟʢ֦େʣ (P 3BJMT ֤ίϯϙʔωϯτ ϚΠΫϩαʔϏεԽ
(PͰॻ͔Ε͍ͯΔͷ • ӡ༻ཧγεςϜͷ"1*ɾϏϡʔ 3BJMTͰॻ͔Ε͍ͯΔͷ • ंࡌثͱͷ௨৴"1* • ंࡌث͔ΒͷϑΝΠϧΞοϓϩʔυ"1* • 8&#ΫϥΠΞϯτͱͷ௨৴"1*
• ఆظόονσʔϞϯ 3BJMT͕ଟ͍ ΞʔΩςΫνϟʢݴޠผʣ
%3*7&$)"35ࣄۀԽ·ͰͷಓͷΓ ࣮ূ࣮ݧʢ̎ʣ ύʔτφʔ༷ͱ࣮ݧతʹαʔϏεΛӡ༻ͯ͠ɺຊʹަ௨ࣄނݮޮՌ͕͋Δͷ͔Λݕূ ‑ ࣄۀԽ0,͔ͷஅ ͠/(Ͱ͋Εɺ࣮ূ࣮ݧதͷιʔείʔυ͓ଂೖΓʹɾɾɾ ‑ ຊαʔϏε։࢝ ظؒͷαʔϏεΛܧଓΛલఏʹɺεέʔϥϏϦςΟΛߟྀͨ͠γεςϜߏங͕ඞཁ
(PPS3BJMT ˒࣮ূ࣮ݧ࣌ɺεϐʔυॏࢹͰ3BJMT 8FC։ൃʹඞཁͳϥΠϒϥϦ͕ͦΖ͍ͬͯͯɺͳΜͱ͍ͬͯ։ൃ͕͍ w ࣮ূ࣮ݧதසൟʹ༷มߋ͕ൃੜ͠ɺεϐʔυউෛ ˒ຊαʔϏεɺύϑΥʔϚϯεॏࢹͰ(P ࣮ߦͷ͞ • ͕̎ഒʹͳΕαʔόʔ͕ͰࡁΉʢίετϝϦοτʣ ੩తܕ͚
• ظؒͷӡ༻Λߟ͑Δͱɺܕ͕͋Δ͜ͱͰେنͳϦϑΝΫλϦϯάָ͕ʹͳΔ ʢӡ༻ϝϦοτʣ
(PͰॻ͔Ε͍ͯΔͷ • ӡ༻ཧγεςϜͷ"1*ɾϏϡʔ 3BJMTͰॻ͔Ε͍ͯΔͷ • ंࡌثͱͷ௨৴"1* • ंࡌث͔ΒͷϑΝΠϧΞοϓϩʔυ"1* • 8&#ΫϥΠΞϯτͱͷ௨৴"1*
• ఆظόονσʔϞϯ 3BJMT͕ଟ͍ ΞʔΩςΫνϟʢݴޠผʣ ࣮ূ࣮ݧதʹ ͳ͔ͬͨαʔϏε ࣮ূ࣮ݧத͔Β ͋ͬͨαʔϏε
ӡ༻ཧγεςϜ͔Β(PΛ࠾༻͠ɺ ͦͷଞͷαʔϏε ॱ࣍(PʹϦϓϨΠε༧ఆ
(PΛ͞Θͬͯ࠷ॳʹײͨ͜͡ͱ • ίϯύΠϧ͕௨Εɺ͍͍ͩͨҙਤ௨Γʹਖ਼͘͠ಈ͍͍ͯΔɻݴޠઃ ܭ͕लҳͳͷͩͱࢥ͏ • ܕ·ΘΓ͕ॊೈͳͷͰɺಈతܕ͚ͷݴޠ͔ΒͰۤ࿑͠ͳ͍ • "5PVSPG(PΛҰ௨Γऴ͑Εɺ044ͷιʔείʔυಡΊΔ • ιʔε͕͍ɾɾɾ
• จࣈྻૢ࡞େมɾɾɾ
͍ͬͯΔϥΠϒϥϦ
8"'ʢϑϨʔϜϫʔΫʣ ˒(PͷϑϨʔϜϫʔΫΛίϯηϓτ͔Βେࡶʹ̎ͭʹେผ͢Δͱɾɾ ϑϧελοΫɾ.7$WTϛχϚϧɾߴ ˒ͳͥͳΒɾɾ w యܕతͳ8FCγεςϜͷͨΊɺϑϧελοΫϑϨʔϜϫʔΫͷԸܙʹ͔͋ͣΓ͍ͨ w ӡ༻ཧγεςϜ͕ߴʹಈ࡞͢Δඞཁੑ͏͍͢
ݕ౼ͨ͠ϑϨʔϜϫʔΫ #FFHP ˕ 3FWFM ͻͱͱ͓ΓͷػೳͦΖ͍ͬͯΔ͕ɺఀؾຯ *SJT ϓϩδΣΫτͷӡӦ໘ͰΛ๊͍͑ͯΔΑ͏ ࠓճͬͪ͜ʂ
#FFHPʹ͍ͭͯ • ϑϧελοΫͷ.7$ϑϨʔϜϫʔΫ • தࠃͰਓؾ͕͋ΓɺΤϯλʔϓϥΠζͰͷ࣮๛ʢςϯηϯτɾϑΝʔΣΠɾɾɾʣ • 8FC։ൃ͚ͷػೳҰ௨ΓͦΖ͍ͬͯΔ •
֤ػೳϞδϡʔϧԽ͞Ε͓ͯΓɺ͖ͳϥΠϒϥϦʹೖΕସ͑ΒΕΔ • ηογϣϯɾΩϟογϡɾϩΨʔɾJOɺɺɺ03.·Ͱ͍͍ͭͯΔ • ϑϧελοΫϑϨʔϜϫʔΫͷΘΓʹɺϕϯνϚʔΫ͍ͦͦ͜͜ • 3BJMTಉ༷ʹɺCFFͱ͍͏$-*πʔϧ͕͋Δ • ίʔυࣗಈੜʢTDBGGPMEJOHʣͰ͖Δ
ϥΠϒϥϦհ 03. (03. কདྷͷ3BJMT͔ΒͷϦϓϨΠεͷͨΊɺ"DUJWF3FDPSEʹ ࣅͨػೳ͕΄͍͠ ϩΨʔ MPHSVT #FFHPͷMPHTϞδϡʔϧ༻ҙ͞Ε͍ͯΔ͕ɺMPHSVTΛ
༻͍ͯ͠Δ ڥઃఆ $POpHPS ڥ͝ͱʹઃఆϑΝΠϧΛ࡞Ͱ͖Δ ύοέʔδཧ HMJEFˠ (P.PEVMFT HMJEFΛ͍͕ͬͯͨɺ(P.PEVMFTͷಋೖޙʹҠߦ ߦऔಘ XIFSFBNJ ࣮ߦதͷιʔείʔυͷߦΛऔಘͰ͖ΔɻΤϥʔ௨ ࣌ʹ༻
ϥΠϒϥϦհ ߏମͷൺֱ HPDNQ ߏମͳͲͷҰகΛྑ͍ײ͡ʹൺֱͯ͘͠ΕΔ *%ੜ YJE ϢχʔΫ*%Λੜ͢ΔɻΞηοτͷμΠδΣετ༩ ͳͲͰ༻
1%'ੜ HPQEG ຊޠ͖Ε͍ʹ1%'ग़ྗͯ͘͠ΕΔɺ͋Γ͕͍ͨϥ ΠϒϥϦ ը૾ੜ HH ͖ͳϑΥϯτΛϩʔυͯ͠ςΩετΛը૾ԽͰ͖Δ όʔίʔυੜ #BSDPEF 23ίʔυͷ࡞ʹ༻
࣮ʹ͍ͭͯ
#FFHPΛͬͯ ࣮͍͖ͯ͠·͢
࣮ʢ$POUSPMMFSʣ ˒ϕʔεͷίϯτϩʔϥߏମΛఆٛ͢Δ • ϨεϙϯεͷϑΥʔϚοτʢ)5.-+40/ʣͰɺߏମΛ͚Δ // controllers/html/base.go type HTMLController
struct { beego.Controller accesslog *logger.AccessLog } // controllers/api/base.go type APIController struct { beego.Controller accesslog *logger.AccessLog }
࣮ʢ$POUSPMMFSʣ ˒ϧʔςΟϯάΛఆٛ͢Δ // routers.go // ϩάΠϯ༻ΤϯυϙΠϯτ beego.Router("/login", &opshtml.HTMLController{},
"get:LoginIndex") beego.Router("/api/login", &opsapi.APIController{}, "post:LoginIndex")
࣮ʢ$POUSPMMFSʣ ˒ίϯτϩʔϥڞ௨ॲཧΛ࣮͢Δ • 1SFQBSF Ͱίϯτϩʔϥͷલॲཧɺ'JOJTI Ͱίϯτϩʔϥͷޙॲཧ͕ॻ͚Δʢ3BJMT ͷCFGPSF@BDUJPOɾBGUFS@BDUJPOͷΑ͏ͳͷʣ //
controllers/api/base.go func (c *APIController) Prepare() { // ΫοΩʔೝূݖݶνΣοΫͳͲ } func (c *APIController) Finish() { // ϩάͷॻ͖ग़͠ͳͲ }
࣮ʢ$POUSPMMFSʣ ˒ίϯτϩʔϥݸผॲཧΛ࣮͢Δ // controllers/api/login.go func (c *APIController) LoginIndex()
{ // ϩάΠϯॲཧΛͯ͠ɺJSONΛฦ͢ c.ServeJSON() } // controllers/html/login.go func (c *HTMLController) LoginIndex() { // ϩάΠϯϖʔδͷϏϡʔΛฦ͢ c.TplName = "ops/login/index.tpl" }
࣮ʢ.PEFMʣ ˒%#εΩʔϚʹରԠ͢ΔߏମΛఆٛ͢Δ // models/car_schema.go type Car struct {
ID int `gorm:"column:id;primary_key" json:"id" csv:"id" chart:"display:ID;sortable:true;filterable:true;type:number;formable:f alse;listable:true"` Name *string `gorm:"column:name" json:"name" csv:"name" chart:"display:ं྆ ໊;sortable:true;filterable:true;type:text;formable:true;listable:true "` // ...... }
࣮ʢ.PEFMʣ ˒Ϩίʔυͷݕࡧ݁ՌΛ֨ೲ͢ΔߏମΛఆٛ͢Δ // models/car_schema.go type Cars struct {
Cars []Car `json:"data"` CountTotal int `json:"recordsTotal"` // ...... }
࣮ʢ.PEFMʣ ˒ϞσϧϩδοΫΛ࣮͢Δ • ϝιου໊ɺ"DUJWF3FDPSEͷϝιου໊Λҙࣝ͢Δ • (03.ͷϑοΫʢ#FGPSF$SFBUFɾ"GUFS$SFBUFʣ͕͑Δ // models/car.go
func (car *Car) FindBy() error { // ̍݅औಘ } func (cars *Cars) Where() error { // ෳ݅औಘ } func (car *Car) Update() error { // ̍݅ߋ৽ } func (cars *Cars) UpdateAll() error { // ෳ݅ߋ৽ }
࣮ʢ7JFXʣ ˒ϏϡʔςϯϓϨʔτΛ࣮͢Δ • HPͷςϯϓϨʔτύοέʔδΛ͏ • +40/ϏϡʔΛΘͣʹɺϞσϧͷߏମͰϨεϙϯεΛఆٛ͢Δ {{/* views/login/index.tpl
*/}} <div> <img src="{{ .baseURL }}/logo.png" width="100" height="100"> </div>
// main.go beego.Run()
্࣮ͷ
εΩʔϚߏମ ˒ςʔϒϧ͝ͱʹɺ%#ͷεΩʔϚఆٛΛөͨ͠εΩʔϚߏମΛͭ͘Δ ˒ܕͱWBMJEBUFλάͰεΩʔϚΛදݱ͢Δ w (03.ͷ্༷ɺ/6--ڐՄͷΧϥϜϙΠϯλܕʹ͢Δඞཁ͕͋Δ type TableExample struct
{ // int unsigned (NOT NULL) DeviceID int `validate:"min=0"` // int unsigned (NOT NULL DEFAULT 0) UserCertBy *int `validate:"min=0"` // int unsigned UserID *int // varchar (NOT NULL) Result string `validate:"required"` // varchar Name *string }
εΩʔϚߏମ ˒ΫϥΠΞϯταΠυͰͷڍಈΛߏମͷλάʹఆٛ͢Δ • +BWB4DSJQUʹλάͷ༰Λ+40/Ͱฦ٫͢Δ • ʢྫʣ͋ΔΧϥϜʹରͯ͠ɺιʔτػೳΛ༗ޮʹ͢Δ͔Ͳ͏͔ • ʢྫʣ͋ΔΧϥϜΛɺ$47ͷग़ྗରʹ͢Δ͔Ͳ͏͔
type TableExample struct { Name *string `gorm:"column:name" json:"name" csv:"name" chart:”display:Name;sortable:true;filterable:true;type:text;formab le:true;listable:true"` UpdatedByUserName string `gorm:"-" json:"updated_by_user_name" csv:"-" chart:"display:ߋ৽ ऀ;sortable:false;filterable:false;type:text;formable:false"` }
࣮ͷڞ௨Խ ˒ଟͷςʔϒϧʹରͯ͠ɺڞ௨ͷػೳΛ࣮͍ͨ͠ • ʢྫʣDBSTʹର͢Δ$SFBUFͷϩδοΫͱɺVTFSTʹର͢Δ$SFBUFͷϩδοΫಉ͡ ˒͔͕͠͠ɾɾ • ςʔϒϧ͕ଟ͍ͷͰɺಉ͡ϩδοΫ࣮Λڞ௨Խ͍ͨ͠ • (PʹδΣωϦΫε͕ͳ͍ʢ˞࣮࣌࣌ʣͷͰɺڞ௨ϝιουΛͭ͘Δ͜ͱ͍͠ •
·ͨڞ௨ϝιουʹͯ͠͠·͏ͱɺ༷ͷॊೈੑ͕ࣦΘΕΔ ‑ ϞσϧɾίϯτϩʔϥɾϏϡʔͷܗΛࣗಈੜͰ͖ΔΑ͏ʹ͢ΔʢಠࣗͷTDBGGPMEJOHػೳʣ
ͱ͍͑ɺଞͷαʔϏε 3BJMTͰಈ͍͍ͯΔɾɾ
3BJMTαʔϏεͱͷซଘ ˒%#·ΘΓͷఆٛͷڞ௨Խ • (PͷαʔϏεͱ3BJMTͷαʔϏε͕ಉ͡%#Λࢀর͍ͯ͠Δ߹ɺ%#·ΘΓͷఆٛͷ ߋ৽͕ࠩόάͷԹচʹͳΔ • Ͱ͖Δ͚ͩೋॏཧΛආ͚ΔΑ͏ʹ͢Δ ڞ௨ԽͷҰྫ
%#εΩʔϚఆٛ 3VCZ SJEHFQPMF ͰҰݩཧ εΩʔϚߏମ %#εΩʔϚ͔ΒεΩʔϚߏମΛࣗಈੜɻ·ͨɺ%#εΩʔ Ϛͱͷ͕ࠩൃੜ͍ͯ͠ͳ͍͔ΛνΣοΫ͢ΔπʔϧΛ༻ҙ FOVNఆٛ ZBNMʹFOVNͷఆٛΛॻ͖ग़͠ɺ྆γεςϜ͔ΒಡΈࠐΉ
3BJMTαʔϏεͱͷซଘ ˒҉߸Խ·ΘΓͷڞ௨Խ • ҰํͷαʔϏεͰ҉߸Խͨ͠Λ͏ҰํͷαʔϏεͰࢀর͍ͨ͠߹ɺ҉߸Խํࣜ 伴Λ߹ΘͤΔඞཁ͕͋Δ • ʢྫʣγϯάϧαΠϯΦϯ • ෳͷαʔϏεͰɺಉ͡Ϣʔβʔ໊ɾύεϫʔυͰϩάΠϯ͍ͨ͠ •
3VCZͷ%FWJTFɺϢʔβʔύεϫʔυͷ҉߸Խʹ#$SZQUΛ༻͢Δ • (PଆͰ#$SZQU·ΘΓͷॲཧΛ࣮͢Δඞཁ͕͋Δ • 伴ͷཧ͕໘ʹͳΔ • 伴ͷߋ৽λΠϛϯάΛͦΖ͑ΔͳͲͷ • ΫϥυαʔϏεΛ͏ͱָʢ"844FDSFUT.BOBHFSͳͲʣ
3BJMTαʔϏεͱͷซଘ ˒ϢʔςΟϦςΟػೳͷڞ௨Խ • ൚༻తͳϢʔςΟϦςΟΛͲͪΒଆͷαʔϏεʹ࣮͢Δ͔ʁ • ϝʔϧૹ৴ɾ௨γεςϜɾ֎෦"1*࿈ܞɾɾɾ • ͲͪΒ͔ҰํʹدͤΔʁ • αʔϏεؒͷ௨৴͕ൃੜ͢Δʢ3&45"1*PSH31$ʁʣ
• υΩϡϝϯτඋͷඞཁੑ্͕͕Δ • ྆αʔϏεͰ࣮͢Δʁ • ࣮ίετ͕ΒΉ • ߋ৽͕ࠩόάͷԹচʹͳΔ
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