From 3a521d23d5507bd7ade88abb4efe277e44fe283f Mon Sep 17 00:00:00 2001 From: "vilet.yy" Date: Tue, 27 Apr 2021 16:16:53 +0800 Subject: [PATCH] fix --- .gitignore | 2 + directory.go | 6 +- go.mod | 12 --- go.sum | 83 --------------------- helper.go | 202 ++++++++++++++++++++++++++++++++++++++++++++++++--- paginator.go | 155 +++++++++++++++++++++++++++++++++++++++ 6 files changed, 349 insertions(+), 111 deletions(-) delete mode 100644 go.sum create mode 100644 paginator.go diff --git a/.gitignore b/.gitignore index ba0ca9e..2752de8 100644 --- a/.gitignore +++ b/.gitignore @@ -31,3 +31,5 @@ _testmain.go /bin cover.out cover.html + +go.sum \ No newline at end of file diff --git a/directory.go b/directory.go index dc39eb8..4566f0c 100644 --- a/directory.go +++ b/directory.go @@ -1,7 +1,7 @@ /* * @Date: 2021-03-22 10:45:37 * @LastEditors: viletyy - * @LastEditTime: 2021-04-26 21:15:38 + * @LastEditTime: 2021-04-27 16:15:43 * @FilePath: /yolk/directory.go */ package yolk @@ -9,8 +9,6 @@ package yolk import ( "fmt" "os" - - "go.uber.org/zap" ) func PathExists(path string) (bool, error) { @@ -34,7 +32,7 @@ func CreateDir(dirs ...string) (err error) { fmt.Println("create directory" + v) err = os.MkdirAll(v, os.ModePerm) if err != nil { - fmt.Println("create directory"+v, zap.Any(" error:", err)) + return fmt.Errorf("create directory: %v", v) } } } diff --git a/go.mod b/go.mod index 2b6b56f..8a089ec 100644 --- a/go.mod +++ b/go.mod @@ -1,15 +1,3 @@ module github.com/viletyy/yolk go 1.15 - -require ( - github.com/niemeyer/pretty v0.0.0-20200227124842-a10e7caefd8e // indirect - github.com/pkg/errors v0.9.1 // indirect - github.com/stretchr/testify v1.6.1 // indirect - go.uber.org/zap v1.16.0 - golang.org/x/lint v0.0.0-20201208152925-83fdc39ff7b5 // indirect - golang.org/x/tools v0.0.0-20201224043029-2b0845dc783e // indirect - gopkg.in/check.v1 v1.0.0-20200227125254-8fa46927fb4f // indirect - gopkg.in/yaml.v2 v2.4.0 // indirect - honnef.co/go/tools v0.0.1-2020.1.5 // indirect -) diff --git a/go.sum b/go.sum deleted file mode 100644 index 2d85b97..0000000 --- a/go.sum +++ /dev/null @@ -1,83 +0,0 @@ -github.com/BurntSushi/toml v0.3.1 h1:WXkYYl6Yr3qBf1K79EBnL4mak0OimBfB0XUf9Vl28OQ= -github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU= -github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= -github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c= -github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= -github.com/google/renameio v0.1.0/go.mod h1:KWCgfxg9yswjAJkECMjeO8J8rahYeXnNhOm40UhjYkI= -github.com/kisielk/gotool v1.0.0/go.mod h1:XhKaO+MFFWcvkIS/tQcRk01m1F5IRFswLeQ+oQHNcck= -github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo= -github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ= -github.com/kr/text v0.1.0 h1:45sCR5RtlFHMR4UwH9sdQ5TC8v0qDQCHnXt+kaKSTVE= -github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI= -github.com/niemeyer/pretty v0.0.0-20200227124842-a10e7caefd8e h1:fD57ERR4JtEqsWbfPhv4DMiApHyliiK5xCTNVSPiaAs= -github.com/niemeyer/pretty v0.0.0-20200227124842-a10e7caefd8e/go.mod h1:zD1mROLANZcx1PVRCS0qkT7pwLkGfwJo4zjcN/Tysno= -github.com/pkg/errors v0.8.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0= -github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4= -github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0= -github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM= -github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4= -github.com/rogpeppe/go-internal v1.3.0/go.mod h1:M8bDsm7K2OlrFYOpmOWEs/qY81heoFRclV5y23lUDJ4= -github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME= -github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI= -github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4= -github.com/stretchr/testify v1.6.1 h1:hDPOHmpOpP40lSULcqw7IrRb/u7w6RpDC9399XyoNd0= -github.com/stretchr/testify v1.6.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg= -github.com/yuin/goldmark v1.2.1/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74= -go.uber.org/atomic v1.6.0 h1:Ezj3JGmsOnG1MoRWQkPBsKLe9DwWD9QeXzTRzzldNVk= -go.uber.org/atomic v1.6.0/go.mod h1:sABNBOSYdrvTF6hTgEIbc7YasKWGhgEQZyfxyTvoXHQ= -go.uber.org/multierr v1.5.0 h1:KCa4XfM8CWFCpxXRGok+Q0SS/0XBhMDbHHGABQLvD2A= -go.uber.org/multierr v1.5.0/go.mod h1:FeouvMocqHpRaaGuG9EjoKcStLC43Zu/fmqdUMPcKYU= -go.uber.org/tools v0.0.0-20190618225709-2cfd321de3ee h1:0mgffUl7nfd+FpvXMVz4IDEaUSmT1ysygQC7qYo7sG4= -go.uber.org/tools v0.0.0-20190618225709-2cfd321de3ee/go.mod h1:vJERXedbb3MVM5f9Ejo0C68/HhF8uaILCdgjnY+goOA= -go.uber.org/zap v1.16.0 h1:uFRZXykJGK9lLY4HtgSw44DnIcAM+kRBP7x5m+NpAOM= -go.uber.org/zap v1.16.0/go.mod h1:MA8QOfq0BHJwdXa996Y4dYkAqRKB8/1K1QMMZVaNZjQ= -golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w= -golang.org/x/crypto v0.0.0-20190510104115-cbcb75029529/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI= -golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI= -golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9 h1:psW17arqaxU48Z5kZ0CQnkZWQJsqcURM6tKiBApRjXI= -golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto= -golang.org/x/lint v0.0.0-20190930215403-16217165b5de/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc= -golang.org/x/lint v0.0.0-20201208152925-83fdc39ff7b5 h1:2M3HP5CCK1Si9FQhwnzYhXdG6DXeebvUHFpre8QvbyI= -golang.org/x/lint v0.0.0-20201208152925-83fdc39ff7b5/go.mod h1:3xt1FjdF8hUf6vQPIChWIBhFzV8gjjsPE/fR3IyQdNY= -golang.org/x/mod v0.0.0-20190513183733-4bf6d317e70e/go.mod h1:mXi4GBBbnImb6dmsKGUJ2LatrhH/nqhxcFungHvyanc= -golang.org/x/mod v0.1.1-0.20191105210325-c90efee705ee/go.mod h1:QqPTAvyqsEbceGzBzNggFXnrqF1CaUcvgkdR5Ot7KZg= -golang.org/x/mod v0.3.0 h1:RM4zey1++hCTbCVQfnWeKs9/IEsaBLA8vTkd0WVtmH4= -golang.org/x/mod v0.3.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA= -golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg= -golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg= -golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s= -golang.org/x/net v0.0.0-20201021035429-f5854403a974/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU= -golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM= -golang.org/x/sync v0.0.0-20201020160332-67f06af15bc9/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM= -golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY= -golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= -golang.org/x/sys v0.0.0-20200930185726-fdedc70b468f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= -golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ= -golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ= -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 v0.0.0-20190621195816-6e04913cbbac/go.mod h1:/rFqwRUd4F7ZHNgwSSTFct+R/Kf4OFW1sUzUTQQTgfc= -golang.org/x/tools v0.0.0-20191029041327-9cc4af7d6b2c/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo= -golang.org/x/tools v0.0.0-20191029190741-b9c20aec41a5/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo= -golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo= -golang.org/x/tools v0.0.0-20191130070609-6e064ea0cf2d/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo= -golang.org/x/tools v0.0.0-20200130002326-2f3ba24bd6e7/go.mod h1:TB2adYChydJhpapKDTa4BR/hXlZSLoq2Wpct/0txZ28= -golang.org/x/tools v0.0.0-20201224043029-2b0845dc783e h1:4nW4NLDYnU28ojHaHO8OVxFHk/aQ33U01a9cjED+pzE= -golang.org/x/tools v0.0.0-20201224043029-2b0845dc783e/go.mod h1:emZCQorbCU4vsT4fOWvOPXz4eW1wZW4PmDk9uLelYpA= -golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0= -golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0= -golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1 h1:go1bK/D/BFZV2I8cIQd1NKEZ+0owSTG1fDTci4IqFcE= -golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0= -gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0= -gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0= -gopkg.in/check.v1 v1.0.0-20200227125254-8fa46927fb4f h1:BLraFXnmrev5lT+xlilqcH8XK9/i0At2xKjWk4p6zsU= -gopkg.in/check.v1 v1.0.0-20200227125254-8fa46927fb4f/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0= -gopkg.in/errgo.v2 v2.1.0/go.mod h1:hNsd1EY+bozCKY1Ytp96fpM3vjJbqLJn88ws8XvfDNI= -gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI= -gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY= -gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ= -gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c h1:dUUwHk2QECo/6vqA44rthZ8ie2QXMNeKRTHCNY2nXvo= -gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM= -honnef.co/go/tools v0.0.1-2019.2.3/go.mod h1:a3bituU0lyd329TUQxRnasdCoJDkEUEAqEt0JzvZhAg= -honnef.co/go/tools v0.0.1-2020.1.5 h1:nI5egYTGJakVyOryqLs1cQO5dO0ksin5XXs2pspk75k= -honnef.co/go/tools v0.0.1-2020.1.5/go.mod h1:X/FiERA/W4tHapMX5mGpAtMSVEeEUOyHaw9vFzvIQ3k= diff --git a/helper.go b/helper.go index 7cfc005..ebde5c8 100644 --- a/helper.go +++ b/helper.go @@ -1,23 +1,201 @@ /* * @Date: 2021-03-12 17:37:03 * @LastEditors: viletyy - * @LastEditTime: 2021-04-26 21:18:37 + * @LastEditTime: 2021-04-27 16:05:14 * @FilePath: /yolk/helper.go */ package yolk -import "strconv" +import ( + "fmt" + "math/rand" + "reflect" + "strconv" +) -func ToString(i interface{}) string { - switch i.(type) { - case string: - return i.(string) - case int: - return strconv.Itoa(i.(int)) - case int64: - return strconv.FormatInt(i.(int64), 10) - case uint: - return strconv.Itoa(int(i.(uint))) +func GetRandomString(n int) string { + const alphanum = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz" + var bytes = make([]byte, n) + rand.Read(bytes) + for i, b := range bytes { + bytes[i] = alphanum[b%byte(len(alphanum))] + } + return string(bytes) +} + +type StrTo string + +func (f *StrTo) Set(v string) { + if v != "" { + *f = StrTo(v) + } else { + f.Clear() + } +} + +func (f *StrTo) Clear() { + *f = StrTo(0x1E) +} + +func (f StrTo) Exist() bool { + return string(f) != string(0x1E) +} + +func (f StrTo) Bool() (bool, error) { + if f == "on" { + return true, nil + } + return strconv.ParseBool(f.String()) +} + +func (f StrTo) Float32() (float32, error) { + v, err := strconv.ParseFloat(f.String(), 32) + return float32(v), err +} + +func (f StrTo) Float64() (float64, error) { + return strconv.ParseFloat(f.String(), 64) +} + +func (f StrTo) Int() (int, error) { + v, err := strconv.ParseInt(f.String(), 10, 32) + return int(v), err +} + +func (f StrTo) Int8() (int8, error) { + v, err := strconv.ParseInt(f.String(), 10, 8) + return int8(v), err +} + +func (f StrTo) Int16() (int16, error) { + v, err := strconv.ParseInt(f.String(), 10, 16) + return int16(v), err +} + +func (f StrTo) Int32() (int32, error) { + v, err := strconv.ParseInt(f.String(), 10, 32) + return int32(v), err +} + +func (f StrTo) Int64() (int64, error) { + v, err := strconv.ParseInt(f.String(), 10, 64) + return int64(v), err +} + +func (f StrTo) Uint() (uint, error) { + v, err := strconv.ParseUint(f.String(), 10, 32) + return uint(v), err +} + +func (f StrTo) Uint8() (uint8, error) { + v, err := strconv.ParseUint(f.String(), 10, 8) + return uint8(v), err +} + +func (f StrTo) Uint16() (uint16, error) { + v, err := strconv.ParseUint(f.String(), 10, 16) + return uint16(v), err +} + +func (f StrTo) Uint32() (uint32, error) { + v, err := strconv.ParseUint(f.String(), 10, 32) + return uint32(v), err +} + +func (f StrTo) Uint64() (uint64, error) { + v, err := strconv.ParseUint(f.String(), 10, 64) + return uint64(v), err +} + +func (f StrTo) String() string { + if f.Exist() { + return string(f) } return "" } + +func ToString(value interface{}, args ...int) (s string) { + switch v := value.(type) { + case bool: + s = strconv.FormatBool(v) + case float32: + s = strconv.FormatFloat(float64(v), 'f', argInt(args).Get(0, -1), argInt(args).Get(1, 32)) + case float64: + s = strconv.FormatFloat(v, 'f', argInt(args).Get(0, -1), argInt(args).Get(1, 64)) + case int: + s = strconv.FormatInt(int64(v), argInt(args).Get(0, 10)) + case int8: + s = strconv.FormatInt(int64(v), argInt(args).Get(0, 10)) + case int16: + s = strconv.FormatInt(int64(v), argInt(args).Get(0, 10)) + case int32: + s = strconv.FormatInt(int64(v), argInt(args).Get(0, 10)) + case int64: + s = strconv.FormatInt(v, argInt(args).Get(0, 10)) + case uint: + s = strconv.FormatUint(uint64(v), argInt(args).Get(0, 10)) + case uint8: + s = strconv.FormatUint(uint64(v), argInt(args).Get(0, 10)) + case uint16: + s = strconv.FormatUint(uint64(v), argInt(args).Get(0, 10)) + case uint32: + s = strconv.FormatUint(uint64(v), argInt(args).Get(0, 10)) + case uint64: + s = strconv.FormatUint(v, argInt(args).Get(0, 10)) + case string: + s = v + case []byte: + s = string(v) + default: + s = fmt.Sprintf("%v", v) + } + return s +} + +func ToInt64(value interface{}) (d int64, err error) { + val := reflect.ValueOf(value) + switch value.(type) { + case int, int8, int16, int32, int64: + d = val.Int() + case uint, uint8, uint16, uint32, uint64: + d = int64(val.Uint()) + default: + err = fmt.Errorf("ToInt64 need numeric not `%T`", value) + } + return +} + +type argString []string + +func (a argString) Get(i int, args ...string) (r string) { + if i >= 0 && i < len(a) { + r = a[i] + } else if len(args) > 0 { + r = args[0] + } + return +} + +type argInt []int + +func (a argInt) Get(i int, args ...int) (r int) { + if i >= 0 && i < len(a) { + r = a[i] + } + if len(args) > 0 { + r = args[0] + } + return +} + +type argAny []interface{} + +func (a argAny) Get(i int, args ...interface{}) (r interface{}) { + if i >= 0 && i < len(a) { + r = a[i] + } + if len(args) > 0 { + r = args[0] + } + return +} diff --git a/paginator.go b/paginator.go new file mode 100644 index 0000000..3ce1c14 --- /dev/null +++ b/paginator.go @@ -0,0 +1,155 @@ +/* + * @Date: 2021-04-27 13:50:37 + * @LastEditors: viletyy + * @LastEditTime: 2021-04-27 14:31:42 + * @FilePath: /yolk/paginator.go + */ +package yolk + +import ( + "math" + "net/http" + "net/url" + "strconv" +) + +type Paginator struct { + Request *http.Request + PerPageNums int // 每页个数 + MaxPages int // 最大页 + nums int64 // 总个数 + pageRange []int // 页码可选择范围 + pageNums int // 最大页 + page int // 当前页 +} + +func (p *Paginator) PageNums() int { + if p.pageNums != 0 { + return p.pageNums + } + pageNums := math.Ceil(float64(p.nums) / float64(p.PerPageNums)) + if p.MaxPages > 0 { + pageNums = math.Min(pageNums, float64(p.MaxPages)) + } + p.pageNums = int(pageNums) + return p.pageNums +} + +func (p *Paginator) Nums() int64 { + return p.nums +} + +func (p *Paginator) SetNums(nums interface{}) { + p.nums, _ = ToInt64(nums) +} + +func (p *Paginator) Page() int { + if p.page != 0 { + return p.page + } + if p.Request.Form == nil { + p.Request.ParseForm() + } + p.page, _ = strconv.Atoi(p.Request.Form.Get("page")) + if p.page > p.PageNums() { + p.page = p.PageNums() + } + if p.page <= 0 { + p.page = 1 + } + return p.page +} + +func (p *Paginator) Pages() []int { + if p.pageRange == nil && p.nums > 0 { + var pages []int + pageNums := p.PageNums() + page := p.Page() + switch { + case page >= pageNums-4 && pageNums > 9: + start := pageNums - 9 + 1 + pages = make([]int, 9) + for i, _ := range pages { + pages[i] = start + i + } + case page >= 5 && pageNums > 9: + start := page - 5 + 1 + pages = make([]int, int(math.Min(9, float64(page+4+1)))) + for i, _ := range pages { + pages[i] = start + 1 + } + default: + pages = make([]int, int(math.Min(9, float64(pageNums)))) + for i, _ := range pages { + pages[i] = i + 1 + } + } + p.pageRange = pages + } + return p.pageRange +} + +func (p *Paginator) PageLink(page int) string { + link, _ := url.ParseRequestURI(p.Request.RequestURI) + values := link.Query() + if page == 1 { + values.Del("page") + } else { + values.Set("page", strconv.Itoa(page)) + } + link.RawQuery = values.Encode() + return link.String() +} + +func (p *Paginator) PageLinkPrev() (link string) { + if p.HasPrev() { + link = p.PageLink(p.Page() - 1) + } + return +} + +func (p *Paginator) PageLinkNext() (link string) { + if p.HasNext() { + link = p.PageLink(p.Page() + 1) + } + return +} + +func (p *Paginator) PageLinkFirst() (link string) { + return p.PageLink(1) +} + +func (p *Paginator) PageLinkLast() (link string) { + return p.PageLink(p.PageNums()) +} + +func (p *Paginator) HasPrev() bool { + return p.Page() > 1 +} + +func (p *Paginator) HasNext() bool { + return p.Page() < p.PageNums() +} + +func (p *Paginator) IsActive(page int) bool { + return p.Page() == page +} + +func (p *Paginator) Offset() int { + return (p.Page() - 1) * p.PerPageNums +} + +func (p *Paginator) HasPages() bool { + return p.PageNums() > 1 +} + +func NewPaginator(req *http.Request, per int, nums interface{}) *Paginator { + p := Paginator{} + p.Request = req + if per <= 0 { + per = 10 + } + p.PerPageNums = per + p.SetNums(nums) + return &p +}