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DOCSP-34174: codewhisperer pt 5 #324

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Nov 29, 2023
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DOCSP-34174: codewhisperer pt 5 #324

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0804f33
DOCSP-34174: codewhisperer pt 5
rustagir Nov 29, 2023
4fb18cc
NR PR fixes
rustagir Nov 29, 2023
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7 changes: 7 additions & 0 deletions source/includes/fundamentals/code-snippets/CRUD/runCommand.go
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Original file line number Diff line number Diff line change
@@ -1,3 +1,4 @@
// Runs a database command by using the Go driver
package main

import (
Expand Down Expand Up @@ -31,16 +32,22 @@ func main() {

// start-runcommand
db := client.Database("plants")

// Creates commands to count documents in a collection and explain
// the how the count command runs
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Suggested change
// the how the count command runs
// how the count command runs

countCommand := bson.D{{"count", "flowers"}}
explainCommand := bson.D{{"explain", countCommand}, {"verbosity", "queryPlanner"}}

// Retrieves results of the explain command
var result bson.M
err = db.RunCommand(context.TODO(), explainCommand).Decode(&result)
// end-runcommand

if err != nil {
panic(err)
}

// Prints the results of the explain command
output, err := json.MarshalIndent(result, "", " ")
if err != nil {
panic(err)
Expand Down
6 changes: 6 additions & 0 deletions source/includes/fundamentals/code-snippets/CRUD/skip.go
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Original file line number Diff line number Diff line change
@@ -1,3 +1,5 @@
// Skips a specified amount of documents when returning results by using
// the Go driver
package main

import (
Expand Down Expand Up @@ -56,6 +58,8 @@ func main() {

fmt.Println("\nSkip:\n")
{
// Prints all remaining documents as structs after applying an
// ascending sort and omitting the first 2 documents
//begin skip
opts := options.Find().SetSort(bson.D{{"enrollment", 1}}).SetSkip(2)

Expand All @@ -74,6 +78,8 @@ func main() {

fmt.Println("Aggegation Skip:")
{
// Prints all remaining documents after using an aggregation
// pipeline to apply a sort and omit the first document
// begin aggregate skip
sortStage := bson.D{{"$sort", bson.D{{"enrollment", -1}}}}
skipStage := bson.D{{"$skip", 1}}
Expand Down
18 changes: 18 additions & 0 deletions source/includes/fundamentals/code-snippets/CRUD/sort.go
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Original file line number Diff line number Diff line change
@@ -1,3 +1,5 @@
// Retrieves documents that match the filter and applies a
// sort to the results
package main

import (
Expand Down Expand Up @@ -56,6 +58,8 @@ func main() {

fmt.Println("\nAscending Sort:\n")
{
// Retrieves matching documents and sets an ascending sort on
// "enrollment"
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S:

Suggested change
// "enrollment"
// the "enrollment" field

//begin ascending sort
filter := bson.D{}
opts := options.Find().SetSort(bson.D{{"enrollment", 1}})
Expand All @@ -66,6 +70,8 @@ func main() {
if err = cursor.All(context.TODO(), &results); err != nil {
panic(err)
}

// Prints matched documents as structs
for _, result := range results {
res, _ := json.Marshal(result)
fmt.Println(string(res))
Expand All @@ -75,6 +81,8 @@ func main() {

fmt.Println("\nDescending Sort:\n")
{
// Retrieves matching documents and sets a descending sort on
// "enrollment"
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S:

Suggested change
// "enrollment"
// the "enrollment" field

//begin descending sort
filter := bson.D{}
opts := options.Find().SetSort(bson.D{{"enrollment", -1}})
Expand All @@ -85,6 +93,8 @@ func main() {
if err = cursor.All(context.TODO(), &results); err != nil {
panic(err)
}

// Prints matched documents as structs
for _, result := range results {
res, _ := json.Marshal(result)
fmt.Println(string(res))
Expand All @@ -94,6 +104,8 @@ func main() {

fmt.Println("\nMulti Sort:\n")
{
// Retrieves matching documents and sets a descending sort on
// "enrollment" and an ascending sort on "title"
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Suggested change
// "enrollment" and an ascending sort on "title"
// the "enrollment" field and an ascending sort on the "title" field

//begin multi sort
filter := bson.D{}
opts := options.Find().SetSort(bson.D{{"enrollment", -1}, {"title", 1}})
Expand All @@ -104,6 +116,8 @@ func main() {
if err = cursor.All(context.TODO(), &results); err != nil {
panic(err)
}

// Prints matched documents as structs
for _, result := range results {
res, _ := json.Marshal(result)
fmt.Println(string(res))
Expand All @@ -113,6 +127,8 @@ func main() {

fmt.Println("\nAggregation Sort:\n")
{
// Uses an aggregation pipeline to set a descending sort on
// "enrollment" and an ascending sort on "title"
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S: same as above (line 108)

// begin aggregate sort
sortStage := bson.D{{"$sort", bson.D{{"enrollment", -1}, {"title", 1}}}}

Expand All @@ -125,6 +141,8 @@ func main() {
if err = cursor.All(context.TODO(), &results); err != nil {
panic(err)
}

// Prints matched documents as structs
for _, result := range results {
res, _ := json.Marshal(result)
fmt.Println(string(res))
Expand Down
17 changes: 17 additions & 0 deletions source/includes/fundamentals/code-snippets/CRUD/textSearch.go
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Original file line number Diff line number Diff line change
@@ -1,3 +1,4 @@
// Performs text searches by using the Go driver
package main

import (
Expand Down Expand Up @@ -55,6 +56,7 @@ func main() {
}
fmt.Printf("Number of documents inserted: %d\n", len(result.InsertedIDs))

// Creates a text index on the "description" field
//begin text index
model := mongo.IndexModel{Keys: bson.D{{"description", "text"}}}
name, err := coll.Indexes().CreateOne(context.TODO(), model)
Expand All @@ -67,6 +69,8 @@ func main() {

fmt.Println("\nTerm Search:\n")
{
// Retrieves and prints documents containing the "herb" string
// in any fields associated with a text index
//begin term search
filter := bson.D{{"$text", bson.D{{"$search", "herb"}}}}

Expand All @@ -88,6 +92,8 @@ func main() {

fmt.Println("\nPhrase Search:\n")
{
// Retrieves and prints documents containing the "serves 2" phrase
// in any fields associated with a text index
//begin phrase search
filter := bson.D{{"$text", bson.D{{"$search", "\"serves 2\""}}}}

Expand All @@ -109,6 +115,9 @@ func main() {

fmt.Println("\nExcluded Term Search:\n")
{
// Retrieves and prints documents containing the "vegan" but
// not the "tofu" string in any fields associated with a text
// index
//begin exclude term search
filter := bson.D{{"$text", bson.D{{"$search", "vegan -tofu"}}}}

Expand All @@ -130,6 +139,9 @@ func main() {

fmt.Println("\nSort By Relevance:\n")
{
// Retrieves and prints documents containing the "vegetarian"
// string and sorts the results by relevance based on the
// "textScore" field
//begin text score
filter := bson.D{{"$text", bson.D{{"$search", "vegetarian"}}}}
sort := bson.D{{"score", bson.D{{"$meta", "textScore"}}}}
Expand All @@ -153,6 +165,8 @@ func main() {

fmt.Println("\nAggregation Text Search:\n")
{
// Uses an aggregation pipeline to retrieve documents containing
// the "herb" string in any fields associated with a text index
// begin aggregate text search
matchStage := bson.D{{"$match", bson.D{{"$text", bson.D{{"$search", "herb"}}}}}}

Expand All @@ -174,6 +188,9 @@ func main() {

fmt.Println("\nAggregation Sort By Relevance:\n")
{
// Uses an aggregation pipeline to retrieve documents containing the "vegetarian"
// string and sorts the results by relevance based on the
// "textScore" field
// begin aggregate text score
matchStage := bson.D{{"$match", bson.D{{"$text", bson.D{{"$search", "vegetarian"}}}}}}
sortStage := bson.D{{"$sort", bson.D{{"score", bson.D{{"$meta", "textScore"}}}}}}
Expand Down
13 changes: 13 additions & 0 deletions source/includes/fundamentals/code-snippets/CRUD/updateArray.go
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Original file line number Diff line number Diff line change
@@ -1,3 +1,4 @@
// Updates array fields of documents by using the Go driver
package main

import (
Expand Down Expand Up @@ -54,12 +55,16 @@ func main() {

fmt.Println("\nPositional $ Operator:\n")
{
// Creates a filter and update document to match a "sizes" array
// entry and decrease the value by 2
// begin positional
filter := bson.D{{"sizes", bson.D{{"$lte", 16}}}}
update := bson.D{{"$inc", bson.D{{"sizes.$", -2}}}}
opts := options.FindOneAndUpdate().
SetReturnDocument(options.After)

// Updates the first document that matches the filter and prints
// the updated document as a struct
var updatedDoc Drink
err := coll.FindOneAndUpdate(context.TODO(), filter, update, opts).Decode(&updatedDoc)
if err != nil {
Expand All @@ -86,13 +91,17 @@ func main() {

fmt.Println("\nPositional $[<identifier>] Operator:\n")
{
// Creates a filter and update document to match "sizes" array
// entries and remove those values
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S: just to make it a little clearer

Suggested change
// entries and remove those values
// values and remove those values

// begin filtered positional
identifier := []interface{}{bson.D{{"hotOptions", bson.D{{"$regex", "hot"}}}}}
update := bson.D{{"$unset", bson.D{{"styles.$[hotOptions]", ""}}}}
opts := options.FindOneAndUpdate().
SetArrayFilters(options.ArrayFilters{Filters: identifier}).
SetReturnDocument(options.After)

// Updates the first document that matches the filter and prints
// the updated document as a struct
var updatedDoc Drink
err := coll.FindOneAndUpdate(context.TODO(), bson.D{}, update, opts).Decode(&updatedDoc)
if err != nil {
Expand All @@ -118,11 +127,15 @@ func main() {

fmt.Println("\nPositional $[] Operator:\n")
{
// Creates a filter and update document to match all "sizes" array
// entries and multiply them by a value
// begin positional all
update := bson.D{{"$mul", bson.D{{"sizes.$[]", 29.57}}}}
opts := options.FindOneAndUpdate().
SetReturnDocument(options.After)

// Updates the first document that matches the filter and prints
// the updated document as a struct
var updatedDoc Drink
err := coll.FindOneAndUpdate(context.TODO(), bson.D{}, update, opts).Decode(&updatedDoc)
if err != nil {
Expand Down
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