Use Sequelize on for loop findAll query and merge result
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I'm coding opensource project in the university course
It is a function to search the value of another table by dividing input keyword by comma.
under this example data
Python,CPP,Csharp
var keyword = result[0].keyword;
var keyword_arr = ;
var keyword_split = keyword.split(',');
for (var i in keyword_split)
{
keyword_arr.push(keyword_split[i]);
}
I have succeeded in separating them with commas like above, but I'm looking for a loop in sequelize.
"Error: Can not set headers after they are sent."
An error is returned and is not executed.
I want to output the results merged. What should I do?
my code is
for (i = 0; i < keyword_arr.length; i++) {
query += models.contents.findAll({
where: {keyword: {like: '%' + keyword_arr[i] + '%'}},
raw: true
});
}
Regards.
mysql node.js sequelize.js
edited Nov 22 '18 at 14:37
Mehran
2001412
asked Nov 22 '18 at 14:22
Seonggwon YoonSeonggwon Yoon
169113
add a comment |
I'm coding opensource project in the university course
It is a function to search the value of another table by dividing input keyword by comma.
under this example data
Python,CPP,Csharp
var keyword = result[0].keyword;
var keyword_arr = ;
var keyword_split = keyword.split(',');
for (var i in keyword_split)
{
keyword_arr.push(keyword_split[i]);
}
I have succeeded in separating them with commas like above, but I'm looking for a loop in sequelize.
"Error: Can not set headers after they are sent."
An error is returned and is not executed.
I want to output the results merged. What should I do?
my code is
for (i = 0; i < keyword_arr.length; i++) {
query += models.contents.findAll({
where: {keyword: {like: '%' + keyword_arr[i] + '%'}},
raw: true
});
}
Regards.
mysql node.js sequelize.js
edited Nov 22 '18 at 14:37
Mehran
2001412
asked Nov 22 '18 at 14:22
Seonggwon YoonSeonggwon Yoon
169113
add a comment |
I'm coding opensource project in the university course
It is a function to search the value of another table by dividing input keyword by comma.
under this example data
Python,CPP,Csharp
var keyword = result[0].keyword;
var keyword_arr = ;
var keyword_split = keyword.split(',');
for (var i in keyword_split)
{
keyword_arr.push(keyword_split[i]);
}
I have succeeded in separating them with commas like above, but I'm looking for a loop in sequelize.
"Error: Can not set headers after they are sent."
An error is returned and is not executed.
I want to output the results merged. What should I do?
my code is
for (i = 0; i < keyword_arr.length; i++) {
query += models.contents.findAll({
where: {keyword: {like: '%' + keyword_arr[i] + '%'}},
raw: true
});
}
Regards.
mysql node.js sequelize.js
edited Nov 22 '18 at 14:37
Mehran
2001412
asked Nov 22 '18 at 14:22
Seonggwon YoonSeonggwon Yoon
169113
I'm coding opensource project in the university course
It is a function to search the value of another table by dividing input keyword by comma.
under this example data
Python,CPP,Csharp
var keyword = result[0].keyword;
var keyword_arr = ;
var keyword_split = keyword.split(',');
for (var i in keyword_split)
{
keyword_arr.push(keyword_split[i]);
}
I have succeeded in separating them with commas like above, but I'm looking for a loop in sequelize.
"Error: Can not set headers after they are sent."
An error is returned and is not executed.
I want to output the results merged. What should I do?
my code is
for (i = 0; i < keyword_arr.length; i++) {
query += models.contents.findAll({
where: {keyword: {like: '%' + keyword_arr[i] + '%'}},
raw: true
});
}
Regards.
mysql node.js sequelize.js
mysql node.js sequelize.js
edited Nov 22 '18 at 14:37
Mehran
2001412
asked Nov 22 '18 at 14:22
Seonggwon YoonSeonggwon Yoon
169113
edited Nov 22 '18 at 14:37
Mehran
2001412
asked Nov 22 '18 at 14:22
Seonggwon YoonSeonggwon Yoon
169113
edited Nov 22 '18 at 14:37
Mehran
2001412
edited Nov 22 '18 at 14:37
Mehran
2001412
edited Nov 22 '18 at 14:37
Mehran
2001412
2001412
asked Nov 22 '18 at 14:22
Seonggwon YoonSeonggwon Yoon
169113
asked Nov 22 '18 at 14:22
Seonggwon YoonSeonggwon Yoon
169113
asked Nov 22 '18 at 14:22
Seonggwon YoonSeonggwon Yoon
169113
169113
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
You were in the right direction , but here it his how you can do :
queries = ;
for (i = 0; i < keyword_arr.length; i++) {
queries.push({keyword: {like: '%' + keyword_arr[i] + '%'}});
}
models.contents.findAll({
where: {
$or : queries
}
raw: true
}).then(results => {
console.log(results); // <---- Check this
})
NOTES :
models.contents.findAll() //<---- Returns promises
You can't just combine the promises by += as its not string or number
like that
In your case , it will create and run the query for each tag , so
that's not proper way of doing , you should combine the tags and create a single query as I did
answered Nov 22 '18 at 14:34
Vivek DoshiVivek Doshi
22.8k44056
Thank you very much!
– Seonggwon Yoon
Nov 22 '18 at 14:39
Happy Coding :)
– Vivek Doshi
Nov 22 '18 at 14:43
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
You were in the right direction , but here it his how you can do :
queries = ;
for (i = 0; i < keyword_arr.length; i++) {
queries.push({keyword: {like: '%' + keyword_arr[i] + '%'}});
}
models.contents.findAll({
where: {
$or : queries
}
raw: true
}).then(results => {
console.log(results); // <---- Check this
})
NOTES :
models.contents.findAll() //<---- Returns promises
You can't just combine the promises by += as its not string or number
like that
In your case , it will create and run the query for each tag , so
that's not proper way of doing , you should combine the tags and create a single query as I did
answered Nov 22 '18 at 14:34
Vivek DoshiVivek Doshi
22.8k44056
Thank you very much!
– Seonggwon Yoon
Nov 22 '18 at 14:39
Happy Coding :)
– Vivek Doshi
Nov 22 '18 at 14:43
add a comment |
You were in the right direction , but here it his how you can do :
queries = ;
for (i = 0; i < keyword_arr.length; i++) {
queries.push({keyword: {like: '%' + keyword_arr[i] + '%'}});
}
models.contents.findAll({
where: {
$or : queries
}
raw: true
}).then(results => {
console.log(results); // <---- Check this
})
NOTES :
models.contents.findAll() //<---- Returns promises
You can't just combine the promises by += as its not string or number
like that
In your case , it will create and run the query for each tag , so
that's not proper way of doing , you should combine the tags and create a single query as I did
answered Nov 22 '18 at 14:34
Vivek DoshiVivek Doshi
22.8k44056
Thank you very much!
– Seonggwon Yoon
Nov 22 '18 at 14:39
Happy Coding :)
– Vivek Doshi
Nov 22 '18 at 14:43
add a comment |
You were in the right direction , but here it his how you can do :
queries = ;
for (i = 0; i < keyword_arr.length; i++) {
queries.push({keyword: {like: '%' + keyword_arr[i] + '%'}});
}
models.contents.findAll({
where: {
$or : queries
}
raw: true
}).then(results => {
console.log(results); // <---- Check this
})
NOTES :
models.contents.findAll() //<---- Returns promises
You can't just combine the promises by += as its not string or number
like that
In your case , it will create and run the query for each tag , so
that's not proper way of doing , you should combine the tags and create a single query as I did
answered Nov 22 '18 at 14:34
Vivek DoshiVivek Doshi
22.8k44056
You were in the right direction , but here it his how you can do :
queries = ;
for (i = 0; i < keyword_arr.length; i++) {
queries.push({keyword: {like: '%' + keyword_arr[i] + '%'}});
}
models.contents.findAll({
where: {
$or : queries
}
raw: true
}).then(results => {
console.log(results); // <---- Check this
})
NOTES :
models.contents.findAll() //<---- Returns promises
You can't just combine the promises by += as its not string or number
like that
In your case , it will create and run the query for each tag , so
that's not proper way of doing , you should combine the tags and create a single query as I did
answered Nov 22 '18 at 14:34
Vivek DoshiVivek Doshi
22.8k44056
edited Nov 22 '18 at 14:39
answered Nov 22 '18 at 14:34
Vivek DoshiVivek Doshi
22.8k44056
answered Nov 22 '18 at 14:34
Vivek DoshiVivek Doshi
22.8k44056
answered Nov 22 '18 at 14:34
Vivek DoshiVivek Doshi
22.8k44056
22.8k44056
Thank you very much!
– Seonggwon Yoon
Nov 22 '18 at 14:39
Happy Coding :)
– Vivek Doshi
Nov 22 '18 at 14:43
add a comment |
Thank you very much!
– Seonggwon Yoon
Nov 22 '18 at 14:39
Happy Coding :)
– Vivek Doshi
Nov 22 '18 at 14:43
Thank you very much!
– Seonggwon Yoon
Nov 22 '18 at 14:39
Thank you very much!
– Seonggwon Yoon
Nov 22 '18 at 14:39
Happy Coding :)
– Vivek Doshi
Nov 22 '18 at 14:43
Happy Coding :)
– Vivek Doshi
Nov 22 '18 at 14:43
add a comment |
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