Week 3 Homework - Beau Barth - w3-mongo#23
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bbarth86 wants to merge 3 commits intopce-uw-jscript400:masterfrom
Open
Week 3 Homework - Beau Barth - w3-mongo#23bbarth86 wants to merge 3 commits intopce-uw-jscript400:masterfrom
bbarth86 wants to merge 3 commits intopce-uw-jscript400:masterfrom
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bwreid
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Jul 26, 2019
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| ---A `document` represents a record/collection of data. In mongoDB, it is stored in BSON format, which is similar to JSON. A `collection` is a grouping of documents, usually grouped for a shared or similar purpose, like transactions, or pricing/inventory collections. A `database` contains both documents, invidiually or in collections. |
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A database will primarily contain collections as opposed to documents.
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| ---It is used to establish a unique ID for each record. By default however, MongoDB (Mongoose? This was going to be checked/confirmed) will create a unique ID even if this statement is not present. |
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Mongo sets the ID by default. With both Mongoose & MongoDB, you can disable this.
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| ---You can resolve this issue by adding `useFindAndModify: true` to your mongoDB connection statement . If i am understanding the Mongoose documentation correctly, this statement is added in order to force Mongoose to use MongoDB driver's `findOneandUpdate()` function instead of MongoDB driver's `findAndModify()` function. Is that correct? |
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| ---`Model.create()` failed to return a response, even though the creation of the document was successful in the DB. I am not entirely sure that i understand the error in the terminal, but it seems as though i am dealing with a promise rejection and would need to use something like `.catch()` to handle with an error message, function, etc. Is it because ``Model.create()` is not returning a query? |
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Correct, Model.create() returns a different type of object so you can't call .select() on it.
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| --- I see the specific messaging coming back in the terminal, but i'm unclear on how to take the `message` key/value pair and parse it to my error message. |
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I believe the error should have a messages key that is an array of all the errors that occurred. Looping through this will give you access to the individual messages.
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| --- So I consistently ran into the 400 error defined in my try/catch statements, but when checking Atlas I can see the document was created. My series.js file is also uploaded for reference. Why might this be? To answer the question however, the `_id` field was automatically created by Mongoose. |
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Let me know if you're still having this issue. I would try and log out the error your receiving in the catch portion to narrow this down.
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