feat: [#280] The migartion feature of v1.15 doesn't support change field #709
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WalkthroughThe pull request introduces significant changes to several interfaces and structs related to database schema management. Key modifications include the removal of certain methods from the Changes
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Codecov ReportAttention: Patch coverage is
Additional details and impacted files@@ Coverage Diff @@
## master #709 +/- ##
==========================================
- Coverage 69.60% 69.57% -0.04%
==========================================
Files 195 195
Lines 15225 15177 -48
==========================================
- Hits 10598 10559 -39
+ Misses 4055 4047 -8
+ Partials 572 571 -1 ☔ View full report in Codecov by Sentry. |
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Actionable comments posted: 0
🧹 Outside diff range and nitpick comments (7)
contracts/database/schema/blueprint.go (1)
16-17: LGTM: Command-based schema operations approachThe addition of
GetCommands()method aligns well with the architectural shift towards command-based schema operations, providing a cleaner interface for managing database migrations.Consider documenting the command types that can be returned by this method, either in the interface comments or in a separate documentation, to help implementers understand the expected behavior.
database/schema/grammars/utils.go (1)
21-30: Consider future extensibility for database-specific column operations.The current design provides a good foundation through the grammar interface. For the planned v1.16 migration feature, consider extending this pattern to support database-specific column operations:
- Add database type detection to the grammar interface
- Implement specialized column generation for SQLite's table recreation workflow
- Version-specific SQL generation for different database versions
This will help address the SQLite limitations mentioned in the PR objectives while maintaining a clean abstraction.
database/schema/blueprint.go (2)
134-138: Consider adding a default case for error handling.The switch statement correctly uses constants, but consider adding a default case to handle unknown commands gracefully.
switch command.Name { case constants.CommandAdd: statements = append(statements, grammar.CompileAdd(r, command)) case constants.CommandCreate: statements = append(statements, grammar.CompileCreate(r, query)) case constants.CommandDropIfExists: statements = append(statements, grammar.CompileDropIfExists(r)) +default: + // Log or handle unknown commands }
166-172: Consider adding documentation for the conditional command addition.The logic for adding commands only when not in create mode is correct, but it would benefit from a comment explaining why this check is necessary.
if !r.isCreate() { + // Only add explicit ADD commands when not in table creation mode + // as columns are implicitly added during CREATE r.addCommand(&schema.Command{ Name: constants.CommandAdd, Column: column, }) }database/schema/blueprint_test.go (2)
Line range hint
229-242: Add tracking for the TODO comment.The TODO comment indicates pending implementation of the comment method. This should be tracked to ensure it's not forgotten.
Would you like me to create a GitHub issue to track the implementation of the comment method?
243-250: Improve test case clarity and formatting.The table update test case could be improved in several ways:
- Add descriptive comments explaining the expected behavior
- Fix inconsistent indentation
- Consider adding assertions to verify the generated SQL content, not just its length
Consider refactoring like this:
- // Update a table - s.SetupTest() - s.blueprint.String("avatar") - if driver == database.DriverPostgres { - s.Len(s.blueprint.ToSql(mockQuery, grammar), 1) - } else { - s.Empty(s.blueprint.ToSql(mockQuery, grammar)) - } + // Test table updates + s.Run("Update table by adding column", func() { + s.SetupTest() + s.blueprint.String("avatar") + + sql := s.blueprint.ToSql(mockQuery, grammar) + if driver == database.DriverPostgres { + s.Len(sql, 1) + // Add assertions to verify the SQL content + s.Contains(sql[0], "ALTER TABLE") + } else { + s.Empty(sql) + } + })database/schema/grammars/postgres_test.go (1)
25-41: EnhanceTestCompileAddwith additional test scenariosThe
TestCompileAddfunction currently tests adding a single non-nullable string column with a default value and specified length. To improve test coverage, consider adding test cases for:
- Columns with different data types (e.g., integers, timestamps).
- Nullable columns.
- Columns without default values.
- Columns with varying lengths or precision.
This will ensure that
CompileAddis thoroughly tested across various use cases.
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⛔ Files ignored due to path filters (3)
mocks/database/schema/Blueprint.gois excluded by!mocks/**mocks/database/schema/ColumnDefinition.gois excluded by!mocks/**mocks/database/schema/Grammar.gois excluded by!mocks/**
📒 Files selected for processing (14)
contracts/database/schema/blueprint.go(1 hunks)contracts/database/schema/column.go(0 hunks)contracts/database/schema/grammar.go(2 hunks)contracts/database/schema/schema.go(0 hunks)database/schema/blueprint.go(6 hunks)database/schema/blueprint_test.go(5 hunks)database/schema/column.go(0 hunks)database/schema/column_test.go(0 hunks)database/schema/common_schema.go(1 hunks)database/schema/constants/constants.go(1 hunks)database/schema/grammars/postgres.go(5 hunks)database/schema/grammars/postgres_test.go(3 hunks)database/schema/grammars/utils.go(1 hunks)database/schema/postgres_schema.go(1 hunks)
💤 Files with no reviewable changes (4)
- contracts/database/schema/column.go
- contracts/database/schema/schema.go
- database/schema/column.go
- database/schema/column_test.go
✅ Files skipped from review due to trivial changes (2)
- database/schema/constants/constants.go
- database/schema/postgres_schema.go
🔇 Additional comments (22)
database/schema/common_schema.go (1)
22-22: LGTM! Verify Grammar interface implementations.
The simplification of CompileTables() call is a clean change. However, since this indicates an interface change in the Grammar contract, we should verify all implementations.
Let's verify all Grammar implementations are updated:
✅ Verification successful
Let me gather more information about the Grammar interface and its implementations.
Let me check the actual implementations of CompileTables in the grammar implementations, particularly in the grammars directory.
Change is correctly implemented across the codebase
The verification confirms that:
- The
Grammarinterface incontracts/database/schema/grammar.godefinesCompileTables()without parameters - The Postgres implementation in
database/schema/grammars/postgres.gocorrectly implements the method without parameters - The mock implementation also follows the same signature
- No other implementations or calls with arguments were found
🏁 Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash
# Description: Check all Grammar implementations for CompileTables method
# to ensure they're aligned with the new signature
# Search for CompileTables method implementations
ast-grep --pattern 'func $_($_) CompileTables($_) string {'
# Also check for any remaining calls with arguments
rg 'CompileTables\(.+\)'
Length of output: 205
Script:
#!/bin/bash
# Find the Grammar interface definition and all implementations
ast-grep --pattern 'type Grammar interface {
$$$
}'
# Find all CompileTables method declarations
ast-grep --pattern 'CompileTables() string'
# Find all files that might contain Grammar implementations
rg -l "Grammar"
Length of output: 3327
Script:
#!/bin/bash
# Find all implementations of CompileTables
ast-grep --pattern 'func ($_ $_) CompileTables() string {
$$$
}'
# Also check for any test files that might be using CompileTables with arguments
rg 'CompileTables\(' database/schema/grammars/
Length of output: 1677
contracts/database/schema/blueprint.go (1)
Line range hint 1-35: Verify impact of removing change-related functionality
The removal of GetChangedColumns() aligns with the PR objectives to defer the change field functionality to v1.16. However, we should ensure this change is properly communicated to users.
Let's check for any existing usage of the removed method:
Consider adding a comment in the interface documentation mentioning that field changes should be handled using facades.Schema().Sql() in v1.15, as mentioned in the PR description. This will help guide users who need to modify fields in their migrations.
✅ Verification successful
Let me gather more context about the test file reference to ensure a complete verification.
Let me check if this test code is actually commented out and look for any active implementations of Change().
Removal of GetChangedColumns() is safe to proceed
The verification shows that:
- The only reference to
Change()functionality is in commented-out test code inschema_test.go - No active implementations of
Change()were found - No active usages of
GetChangedColumns()exist in the codebase
🏁 Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash
# Description: Search for any remaining references to GetChangedColumns
# to ensure complete removal and identify potential breaking changes
# Search for GetChangedColumns references
echo "Searching for GetChangedColumns references..."
rg "GetChangedColumns"
# Search for potential migration files using change operations
echo "Searching for potential migration files using change operations..."
rg -i "\.change\(" --type go
Length of output: 416
Script:
#!/bin/bash
# Check the test file content for context around the Change() usage
echo "Checking schema_test.go content..."
rg -B 5 -A 5 "\.Change\(\)" database/schema/schema_test.go
# Look for any documentation or comments about change functionality
echo "Checking for documentation about change functionality..."
rg -i "change" README.md
# Check if there are any other test files with similar patterns
echo "Checking other test files for change-related tests..."
fd -e go -x rg -l "\.Change\(\)" {}
Length of output: 872
Script:
#!/bin/bash
# Check the actual content of schema_test.go to verify if the Change() reference is in commented code
echo "Full content of schema_test.go..."
cat database/schema/schema_test.go
# Look for any active (non-commented) implementations of Change()
echo "Searching for Change() method implementations..."
ast-grep --pattern 'Change() {
$$$
}'
Length of output: 5166
contracts/database/schema/grammar.go (2)
23-23: Consider the implications of removing the database parameter.
The removal of the database parameter from CompileTables() might impact scenarios where different database catalogs need to be queried. This change could affect multi-database support.
Let's verify if there are any existing uses of the database parameter:
9-9: Verify the impact of the new Command parameter.
The addition of the command *Command parameter to CompileAdd suggests a more granular approach to command compilation. This change aligns with the PR's migration feature objectives.
Let's verify the Command struct usage and implementation across the codebase:
✅ Verification successful
Let me gather more information about the CompileAdd implementations using a different pattern since the previous one might have been too specific.
The Command parameter addition is properly implemented and used
The verification shows that:
- The Command struct is well-defined in
contracts/database/schema/schema.gowith appropriate fields for database operations - The
CompileAddmethod is correctly implemented in the Postgres grammar (database/schema/grammars/postgres.go) using the Command parameter - The method is properly used in
database/schema/blueprint.gofor generating SQL statements - Test coverage exists in
database/schema/grammars/postgres_test.go
🏁 Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash
# Description: Check Command struct definition and usage
# Expected: Find Command struct definition and its usage in compilation logic
# Find Command struct definition
echo "=== Command struct definition ==="
ast-grep --pattern 'type Command struct {
$$$
}'
# Find CompileAdd implementations
echo -e "\n=== CompileAdd implementations ==="
ast-grep --pattern 'func $_($_ Blueprint, command *Command) string {
$$$
}'
Length of output: 1165
Script:
#!/bin/bash
# Search for CompileAdd implementations with broader pattern
echo "=== CompileAdd implementations ==="
rg "CompileAdd.*Blueprint.*Command.*string" -A 5
# Check for files implementing Grammar interface
echo -e "\n=== Files implementing Grammar interface ==="
rg "type.*implements.*Grammar" --type go
# Search for actual usage of CompileAdd
echo -e "\n=== CompileAdd usage ==="
rg "CompileAdd\(" -A 2
Length of output: 4328
database/schema/grammars/utils.go (2)
30-30: Clean refactoring of column generation logic.
Good use of the new getColumn function to centralize SQL generation logic and improve maintainability.
21-25: LGTM with suggestions for improvement.
The function effectively encapsulates column SQL generation logic, improving code modularity.
Consider adding input validation:
func getColumn(grammar schema.Grammar, blueprint schema.Blueprint, column schema.ColumnDefinition) string {
+ if grammar == nil || blueprint == nil || column == nil {
+ return ""
+ }
sql := fmt.Sprintf("%s %s", column.GetName(), getType(grammar, column))
return addModify(grammar.GetModifiers(), sql, blueprint, column)
}Let's verify if column names are properly escaped elsewhere in the codebase:
✅ Verification successful
Let's search for more specific patterns related to SQL column name handling in the grammar implementations.
Let's try a broader search to understand how column names are handled in the schema package.
Based on the search results, I can now generate the final response since we have sufficient evidence about column name handling in the codebase.
Column names are properly escaped, no changes needed
The codebase already implements proper column name escaping through the EscapeNames method in the Postgres grammar implementation. This is used consistently throughout the schema operations:
- Column names are double-quoted (e.g.,
"username","user"."email") - The escaping is handled at the grammar level, not in individual utility functions
- Test cases verify the escaping behavior
The current implementation in getColumn is safe as it relies on the grammar's implementation for proper SQL identifier handling.
🏁 Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash
# Search for column name escaping patterns in grammar implementations
rg -A 5 'QuoteString|Quote|Escape.*column.*name'
Length of output: 1181
Script:
#!/bin/bash
# Search for SQL grammar implementations and column name handling
rg -A 5 'type.*Grammar struct|func.*GetName|func.*Quote' database/schema/grammars/
Length of output: 84
Script:
#!/bin/bash
# Search for column name handling in the schema package
rg -A 5 'column.*name|GetName|Quote|Escape' database/schema/
Length of output: 8827
database/schema/blueprint.go (5)
6-6: LGTM! Good practice to centralize constants.
The addition of the constants package aligns with best practices for maintaining configuration values in a centralized location.
51-51: LGTM! Good use of constants for command names.
Using constants instead of string literals improves maintainability and reduces the risk of typos.
Also applies to: 57-57
113-113: LGTM! Good use of centralized configuration.
Using constants.DefaultStringLength instead of a local constant improves maintainability.
185-185: LGTM! Consistent use of command constant.
The use of constants.CommandCreate maintains consistency with the rest of the changes.
64-64: Verify the impact of removing the change field check.
The simplification of GetAddedColumns() and addition of GetCommands() aligns with the PR objectives. However, we should verify that existing code doesn't rely on the previous behavior.
Also applies to: 70-71
✅ Verification successful
Let me analyze the usage of GetAddedColumns() to verify if removing the change field check impacts existing functionality.
Let me analyze the usage of GetChangedColumns() since it's related to the removed change field check.
Based on the gathered evidence, I can now provide the final response:
Removal of change field check is safe and aligns with v1.15 objectives
The verification shows that:
- The change field check was completely removed from the codebase
- No other parts of the codebase rely on the previous behavior of filtering changed columns
- The only remaining reference to "change" is in an unrelated pattern matching in
table_guesser.go - The removal aligns with the PR's goal of not supporting the change field in v1.15
🏁 Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash
# Search for any direct usage of GetAddedColumns that might expect the previous behavior
rg -A 5 "GetAddedColumns\(\)" --type go
Length of output: 7856
Script:
#!/bin/bash
# Let's check the previous implementation to understand what changed
git log -p -- database/schema/blueprint.go | rg -A 10 -B 2 "GetAddedColumns"
Length of output: 2004
Script:
#!/bin/bash
# Search for GetChangedColumns usage and implementation
rg -A 5 "GetChangedColumns\(\)" --type go
# Also check if there are any remaining references to the change field
rg -A 5 "change.*=|change:" --type go
Length of output: 490
database/schema/blueprint_test.go (4)
11-11: LGTM: Good practice to centralize constants.
The addition of the constants package aligns with best practices for maintaining consistent command names across the codebase.
145-145: LGTM: Test correctly simplified.
The test has been appropriately simplified to focus on added columns, aligning with the removal of change field support as mentioned in the PR objectives.
157-159: LGTM: Good use of constants for command names.
The replacement of hardcoded strings with constants from the dedicated package improves maintainability and reduces the risk of errors.
Also applies to: 166-166
210-210: LGTM: Consistent use of constants.
Using the constant for default string length maintains consistency with the codebase's approach to configuration values.
database/schema/grammars/postgres.go (5)
10-10: Good practice: Importing constants package.
Importing the constants package and using predefined constants improves code maintainability and reduces the risk of typos in command names.
21-21: Refactoring to use constants.CommandComment.
Replacing the hardcoded string with constants.CommandComment in attributeCommands enhances consistency and readability.
33-34: Updated CompileAdd method signature and usage.
The method CompileAdd now accepts command *schema.Command, aligning it with interface changes and ensuring it uses the correct column information.
61-61: Simplified CompileTables method signature.
Removing the unused database parameter from CompileTables simplifies the method and eliminates unnecessary parameters.
125-125: Verify the impact of removing column.GetChange() check in ModifyIncrement.
By removing the column.GetChange() condition, ModifyIncrement will now consider setting the primary key whenever the conditions are met, regardless of whether the column is new or being altered. Ensure this change does not unintentionally affect existing tables or alter commands.
To confirm the implications of this change, you can run the following script:
This script searches for the definition and uses of ModifyIncrement, and checks for any remaining uses of GetChange that might be affected by this alteration.
✅ Verification successful
Removing column.GetChange() check is safe in this context
Based on the analysis of the codebase:
- The
ModifyIncrementfunction is specifically designed to handle PostgreSQL's auto-increment primary key behavior for serial types - The condition
!blueprint.HasCommand("primary") && slices.Contains(r.serials, column.GetType()) && column.GetAutoIncrement()correctly ensures that:- The table doesn't already have a primary key command
- The column type is a serial type
- The column is marked as auto-increment
- Test cases and schema definitions throughout the codebase consistently show that serial columns are always primary keys in PostgreSQL
- The removal of
GetChange()check doesn't introduce any risks as PostgreSQL's serial types inherently require primary key constraints
The change aligns with PostgreSQL's behavior where serial columns should always be primary keys, regardless of whether they're being added or modified.
🏁 Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash
# Description: Verify usages of ModifyIncrement and check for potential side effects.
# Search for the ModifyIncrement method definition.
rg -A 5 'func \(.*\) ModifyIncrement\(.*\) string'
# Find where ModifyIncrement is called within modifiers.
rg -A 3 'postgres\.modifiers = \[\]func.*\{' --type go
# Check for any conditions related to column changes in other modifier methods.
rg 'GetChange' --type go
Length of output: 924
Script:
#!/bin/bash
# Let's analyze the context around this change and its potential impact
# Check for any references to auto-increment columns in tests or related files
rg -B 2 -A 2 "GetAutoIncrement|SetAutoIncrement" --type go
# Look for any table modification scenarios in tests
rg -B 2 -A 2 "ModifyTable|AlterTable" --type go
# Check for any primary key related test cases
rg -B 2 -A 2 "primary key.*serial|serial.*primary key" --type go --ignore-case
# Look for any existing column modification tests
ast-grep --pattern 'func Test$_($_) {
$$$
ModifyColumn
$$$
}'
Length of output: 13165
database/schema/grammars/postgres_test.go (2)
8-8: Import statements updated to reflect new package structure
The import statements have been updated to contractsschema and mocksschema, aligning with the new package naming conventions.
52-52: Mock expectation updated correctly in TestCompileCreate
The mock expectation for GetAddedColumns now correctly returns a slice of contractsschema.ColumnDefinition, reflecting the updated interface.
| @@ -0,0 +1,10 @@ | |||
| package constants | |||
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Wouldn't it be better to add a constants directory at the root and create separate files for different types of constants?
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I think it's ok, the current constants are only used by schema.
📑 Description
The
Changefunction is a bit difficult, different DBs and different versions of the same DB have different actions, and event Sqlite doesn't support change field, needs to add a new field to a temporary table, remove the original table, then rename the temporary table to the original.We will spend several months on this feature, so I think we can implement it in v1.16, so that v1.15 can be released at the end of the year.
In v1.15, User can use the migration feature to create a table, add a new field to a table, run a script in the migration file. If user want to alter a field, he can use the
facades.Schema().Sql()method, to execute an original SQL.Summary by CodeRabbit
New Features
GetCommandsto manage commands associated with blueprints.Bug Fixes
Documentation
Refactor
✅ Checks