crud example komplett
This commit is contained in:
thomashamburg
parent
3dd83793af
commit
96d8e0da3c
BIN
crud/.crud
Executable file
BIN
crud/.crud
Executable file
Binary file not shown.
@ -3,37 +3,33 @@ package api
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import (
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"context"
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"crud/sqlite"
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"fmt"
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"html/template"
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"net/http"
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"strconv"
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)
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const baseQuery = `SELECT u.id, u.name, u.username, u.email, u.phone, u.website, a.street, a.suite, a.zipcode, a.city, c.name as company, c.catch_phrase, c.bs
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FROM user u
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JOIN company c ON u.company_id = c.id
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JOIN address a ON u.address_id = a.id
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`
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func Board(ctx context.Context, db *sqlite.Database, templ *template.Template) http.Handler {
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// Implementation of Board handler
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return http.HandlerFunc(
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func(w http.ResponseWriter, r *http.Request) {
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query := `SELECT u.id, u.name, u.username, u.email, u.phone, u.website, a.street, a.suite, a.zipcode, a.city, c.name as company, c.catch_phrase, c.bs
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FROM user u
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JOIN company c ON u.company_id = c.id
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JOIN address a ON u.address_id = a.id;
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`
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w.Header().Set("Content-Type", "text/html")
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// w.Header().Set("Content-Type", "application/json")
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records, err := db.ReadRecords(ctx, query)
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records, err := sqlite.NoRowsOk(db.ReadRecords(ctx, baseQuery+";"))
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if err != nil {
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http.Error(w, err.Error(), http.StatusInternalServerError)
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return
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}
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// Create a data structure to pass to template
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data := map[string]interface{}{
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"records": records,
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}
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// Execute template with proper error handling
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if err := templ.ExecuteTemplate(w, "board", data); err != nil {
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if err := templ.ExecuteTemplate(w, "board", sqlite.Record{"records": records}); err != nil {
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http.Error(w, err.Error(), http.StatusInternalServerError)
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return
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}
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@ -47,13 +43,15 @@ func DeleteRecord(ctx context.Context, db *sqlite.Database, templ *template.Temp
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func(w http.ResponseWriter, r *http.Request) {
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id := r.URL.Query().Get("id")
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if id == "" {
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http.Error(w, "Missing id parameter", http.StatusBadRequest)
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return
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id, err := strconv.ParseInt(r.PathValue("id"), 10, 64)
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if err != nil {
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w.WriteHeader(http.StatusInternalServerError)
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w.Write([]byte(err.Error()))
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}
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if err := db.DeleteRecord(ctx, "users", "id", id); err != nil {
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// fmt.Println("DeleteRecord handler called ", id)
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if err := db.DeleteRecord(ctx, "user", "id", id); err != nil {
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http.Error(w, err.Error(), http.StatusInternalServerError)
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return
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}
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@ -63,3 +61,65 @@ func DeleteRecord(ctx context.Context, db *sqlite.Database, templ *template.Temp
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},
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)
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}
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func EditRecord(ctx context.Context, db *sqlite.Database, templ *template.Template) http.Handler {
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// Implementation of EditRecord handler
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return http.HandlerFunc(
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func(w http.ResponseWriter, r *http.Request) {
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// fmt.Println("EditRecord handler called")
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id, err := strconv.ParseInt(r.PathValue("id"), 10, 64)
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if err != nil {
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w.WriteHeader(http.StatusInternalServerError)
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w.Write([]byte(err.Error()))
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}
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records, err := db.ReadRecords(ctx, baseQuery+" WHERE u.id = ?;", id)
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if err != nil {
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http.Error(w, err.Error(), http.StatusInternalServerError)
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return
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}
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rec := records[0]
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// fmt.Printf("Record to edit: %+v\n", rec)
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w.Header().Set("Content-Type", "text/html")
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// Execute template with proper error handling
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if err := templ.ExecuteTemplate(w, "edit-user", rec); err != nil {
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http.Error(w, err.Error(), http.StatusInternalServerError)
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return
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}
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},
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)
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}
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func PatchRecord(ctx context.Context, db *sqlite.Database, templ *template.Template) http.Handler {
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// Implementation of PatchRecord handler
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return http.HandlerFunc(
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func(w http.ResponseWriter, r *http.Request) {
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fmt.Println("PatchRecord handler called")
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// id, err := strconv.ParseInt(r.PathValue("id"), 10, 64)
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// if err != nil {
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// w.WriteHeader(http.StatusInternalServerError)
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// w.Write([]byte(err.Error()))
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// }
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// if err := db.DeleteRecord(ctx, "user", "id", id); err != nil {
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// http.Error(w, err.Error(), http.StatusInternalServerError)
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// return
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// }
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// Redirect or respond with success
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http.Redirect(w, r, "/board", http.StatusSeeOther)
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},
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)
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}
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Binary file not shown.
@ -10,8 +10,7 @@
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<script type="module" src="datastar.js"></script>
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<style>
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#board {
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grid-template-columns: repeat(3, 1fr);
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/* 3 columns */
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grid-template-columns: repeat(4, 1fr);
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}
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</style>
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</head>
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@ -44,7 +44,7 @@ func main() {
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ctx := context.Background()
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// logging
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logFileName := "./crud.log"
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logFileName := "./.crud.log"
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logFile, err := os.OpenFile(logFileName, os.O_RDWR|os.O_CREATE|os.O_APPEND, 0666)
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if err != nil {
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log.Printf("error opening file: %v", err)
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@ -22,9 +22,7 @@ func addRoutes(
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) {
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mux.Handle("GET /", http.FileServer(http.FS(static)))
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mux.Handle("GET /board", api.Board(ctx, database, templ))
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mux.Handle("GET /delete-record/{id}", api.DeleteRecord(ctx, database, templ))
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// mux.Handle("GET /count", api.ProductCount(database))
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// mux.Handle("GET /nutriments/{page}", api.DataNutriments(database, templ))
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// mux.Handle("GET /products/{page}", api.DataProducts(database, templ))
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// mux.Handle("GET /brandowner/{page}", api.DataBrandOwner(database, templ))
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mux.Handle("GET /edit-record/{id}", api.EditRecord(ctx, database, templ))
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mux.Handle("PATCH /patch-record/{id}", api.PatchRecord(ctx, database, templ))
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mux.Handle("DELETE /delete-record/{id}", api.DeleteRecord(ctx, database, templ))
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}
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@ -1,10 +1,10 @@
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{{define "board"}}
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<div id="board" class="grid">
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{{range .records}}
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<article>
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<article id="user-{{.id}}">
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<header>
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<h3>{{.name}}</h3>
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<p>@{{.username}}</p>
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<p>{{.username}}</p>
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</header>
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<form inert>
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<label>
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@ -54,8 +54,66 @@
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</form>
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<footer class="grid">
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<button class="primary" data-on:click="@get('edit-record/{{.id}}')">Edit</button>
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<button class="secondary" data-on:click="@get('delete-record/{{.id}}')">Delete</button>
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<button class="secondary" data-on:click="@delete('delete-record/{{.id}}')">Delete</button>
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</article>
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{{end}}
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</div>
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{{end}}
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{{define "edit-user"}}
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<article id="user-{{.id}}">
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<header>
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<h3>{{.name}}</h3>
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<p>{{.username}}</p>
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</header>
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<form>
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<label>
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Email
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<input type="email" value="{{.email}}" />
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</label>
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<label>
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Phone
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<input type="tel" value="{{.phone}}" />
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</label>
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<label>
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Website
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<input type="url" value="{{.website}}" />
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</label>
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<label>
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Company
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<input type="text" value="{{.company}}" />
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</label>
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<fieldset role="group">
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<label>
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Street
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<input type="text" value="{{.street}}" />
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</label>
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<label>
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Suite
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<input type="text" value="{{.suite}}" />
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</label>
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</fieldset>
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<fieldset role="group">
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<label>
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City
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<input type="text" value="{{.city}}" />
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</label>
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<label>
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Zipcode
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<input type="text" value="{{.zipcode}}" />
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</label>
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</fieldset>
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</label>
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</form>
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<footer class="grid">
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<button class="primary" data-on:click="@patch('patch-record/{{.id}}')">Save</button>
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<button class="secondary" data-on:click="@get('board')">Cancel</button>
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</article>
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{{end}}
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@ -3,3 +3,6 @@ cp .user.db user.db
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ls -l
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echo "The CRUD Example"
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---PAUSE---
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micro index.html board-content.html sample.go
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xdg-open http://localhost:8080
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./.crud
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119
crud/board-content.html
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119
crud/board-content.html
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@ -0,0 +1,119 @@
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{{define "board"}}
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<div id="board" class="grid">
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{{range .records}}
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<article id="user-{{.id}}">
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<header>
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<h3>{{.name}}</h3>
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<p>{{.username}}</p>
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</header>
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<form inert>
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<label>
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Email
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<input type="email" value="{{.email}}" />
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</label>
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<label>
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Phone
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<input type="tel" value="{{.phone}}" />
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</label>
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<label>
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Website
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<input type="url" value="{{.website}}" />
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</label>
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<label>
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Company
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<input type="text" value="{{.company}}" />
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</label>
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<fieldset role="group">
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<label>
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Street
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<input type="text" value="{{.street}}" />
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</label>
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<label>
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Suite
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<input type="text" value="{{.suite}}" />
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</label>
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</fieldset>
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<fieldset role="group">
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<label>
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City
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<input type="text" value="{{.city}}" />
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</label>
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<label>
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Zipcode
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<input type="text" value="{{.zipcode}}" />
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</label>
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</fieldset>
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</label>
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</form>
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<footer class="grid">
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<button class="primary" data-on:click="@get('edit-record/{{.id}}')">Edit</button>
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<button class="secondary" data-on:click="@delete('delete-record/{{.id}}')">Delete</button>
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</article>
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{{end}}
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</div>
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{{end}}
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{{define "edit-user"}}
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<article id="user-{{.id}}">
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<header>
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<h3>{{.name}}</h3>
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<p>{{.username}}</p>
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</header>
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<form>
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<label>
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Email
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<input type="email" value="{{.email}}" />
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</label>
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<label>
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Phone
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<input type="tel" value="{{.phone}}" />
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</label>
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<label>
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Website
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<input type="url" value="{{.website}}" />
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</label>
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<label>
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Company
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<input type="text" value="{{.company}}" />
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</label>
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<fieldset role="group">
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<label>
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Street
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<input type="text" value="{{.street}}" />
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</label>
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<label>
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Suite
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<input type="text" value="{{.suite}}" />
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</label>
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</fieldset>
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<fieldset role="group">
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<label>
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City
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<input type="text" value="{{.city}}" />
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</label>
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<label>
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Zipcode
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<input type="text" value="{{.zipcode}}" />
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</label>
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</fieldset>
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</label>
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</form>
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<footer class="grid">
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<button class="primary" data-on:click="@patch('patch-record/{{.id}}')">Save</button>
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<button class="secondary" data-on:click="@get('board')">Cancel</button>
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</article>
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{{end}}
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@ -1,23 +1,26 @@
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<!DOCTYPE html >
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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>Hypermedia</title>
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<title>CRUD Example</title>
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<link rel="stylesheet" href="pico.blue.css">
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<meta name="color-scheme" content="light dark">
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<script type="module" src="datastar.js"></script>
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<style>
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#board {
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grid-template-columns: repeat(4, 1fr);
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}
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</style>
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</head>
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<body class="container" data-theme="light">
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<body class="container-fluid" data-theme="light">
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<h1 style="margin-top: 1em; text-align:center">Hypermedia as the Engine of Application State</h1>
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<h1 style="margin-top: 1em; text-align:center">The CRUD Example</h1>
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<main class="grid" data-theme="dark">
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<article id="record1" data-init="@get('display-record1.html')"></article>
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<article id="record2" data-init="@get('display-record2.html')"></article>
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<article id="record3" data-init="@get('display-record3.html')"></article>
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<main data-theme="dark">
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<div id="board" data-init="@get('board')"></div>
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</main>
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</body>
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44
crud/sample.go
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44
crud/sample.go
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@ -0,0 +1,44 @@
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// addRoutes combines the URL endpoints with the applications's services
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// and dependencies and required middleware
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func addRoutes(
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ctx context.Context,
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mux *http.ServeMux,
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database *sqlite.Database,
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static fs.FS,
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templ *template.Template,
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) {
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mux.Handle("GET /", http.FileServer(http.FS(static)))
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mux.Handle("GET /board", api.Board(ctx, database, templ))
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mux.Handle("GET /edit-record/{id}", api.EditRecord(ctx, database, templ))
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mux.Handle("PATCH /patch-record/{id}", api.PatchRecord(ctx, database, templ))
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mux.Handle("DELETE /delete-record/{id}", api.DeleteRecord(ctx, database, templ))
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}
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const query = `SELECT u.id, u.name, u.username, u.email, u.phone, u.website, a.street, a.suite, a.zipcode, a.city, c.name as company, c.catch_phrase, c.bs
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FROM user u
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JOIN company c ON u.company_id = c.id
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JOIN address a ON u.address_id = a.id;
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`
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// load user data and fill template
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func Board(ctx context.Context, db *sqlite.Database, templ *template.Template) http.Handler {
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return http.HandlerFunc(
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func(w http.ResponseWriter, r *http.Request) {
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w.Header().Set("Content-Type", "text/html")
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records, err := sqlite.NoRowsOk(db.ReadRecords(ctx, query))
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if err != nil {
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http.Error(w, err.Error(), http.StatusInternalServerError)
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return
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}
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// Execute template with proper error handling
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if err := templ.ExecuteTemplate(w, "board", sqlite.Record{"records": records}); err != nil {
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http.Error(w, err.Error(), http.StatusInternalServerError)
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return
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}
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},
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)
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}
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